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ACOEM Aurora NE Series User Manual

Multi wavelength nephelometers
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Summary of Contents for ACOEM Aurora NE Series

  • Page 1 Page 1...

  • Page 3: Table Of Contents

    Table of Contents Manufacturer’s Statement ............................ 14 Notice ..................................14 Safety Information ..............................15 Important Safety Messages ........................... 16 Warranty ................................17 Service & Repairs ..............................18 Product Compliance and Approvals ........................19 Manual Revision History ............................20 Introduction ........................... 21 Description ..............................
  • Page 4 Au ro ra NE Se ri es Use r M anu al 1 .3 2.2.3 Sample Inlet Installation ......................64 2.2.4 Wall Mounting Bracket Installation ................... 66 Instrument Set-up ............................. 67 2.3.1 Power Connections ........................68 2.3.2 Pneumatic Connections ......................69 2.3.3 Communications Connections ....................
  • Page 5 5.3.2 Chassis Pressure Calibration ....................158 5.3.3 Chassis Relative Humidity Calibration..................159 Flow Calibration ............................159 5.4.1 Single Point Flow Sensor Calibration ..................159 5.4.2 Multipoint Flow Sensor Calibration ..................161 5.4.3 MFC Option Calibration ......................163 Full Calibration (Span and Zero) ......................164 5.5.1 Connecting the Calibration Gas ....................
  • Page 6 Au ro ra NE Se ri es Use r M anu al 1 .3 Backscatter ............................. 217 Reference Shutter ........................... 218 Measure Count ............................219 Dark Count .............................. 220 PMT ................................. 221 Flow ................................ 222 Sample Temperature ..........................223 Chassis Temperature ..........................224 7.10 Hardware Clock ............................
  • Page 7 Figure 1 – Scattering Influence on the Earth ........................ 27 Figure 2 – Light Scattering and Absorption ........................28 Figure 3 – Optical Spectrum of Aurora NE Series ......................30 Figure 4 – Example of Aerosol Scattering Enhancement Factor .................. 30 Figure 5 –...
  • Page 8 Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 48 – Current Reading Single Field Widgets (NE-300) ..................80 Figure 49 – Current Reading Single Field Widgets (NE-400) ..................81 Figure 50 – Sample Readings Panel ..........................81 Figure 51 –...
  • Page 9 Figure 100 – Sample Temperature Calibration Dialog Box ..................111 Figure 101 – Leak Check Panel ........................... 112 Figure 102 – Comms Page ............................112 Figure 103 – Ethernet Panel ............................113 Figure 104 – Bluetooth Panel ............................. 113 Figure 105 – Serial Panel Baudrate selection ......................114 Figure 106 –...
  • Page 10 Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 152 – Example of Typical Network Setups ....................... 144 Figure 153 – Example of Ethernet Panel ........................145 Figure 154 – LAN Network Set-Up (Airodis) ....................... 146 Figure 155 –...
  • Page 11 Table 1 – Internationally Recognised Symbols ......................15 Table 2 – Manual Revision History ..........................20 Table 3 – Aurora NE Series Measurement Specifications .................... 22 Table 4 – Calibration Data ............................39 Table 5 – Calibration Gas Constants ..........................43 Table 6 –...
  • Page 12 Table 22 – Common Errors and Troubleshooting ....................... 213 Table 23 – Inlet Tubing options ..........................230 Table 24 – Aurora NE Series Annual Maintenance Kit - (PN: E010120) ..............235 Table 25 – Aurora NE Series Consumables ......................... 235 Table 26 –...
  • Page 13 Appendix B. Aurora Protocol ...................... 285 Command: ID .............................. 285 Command: ***B ............................285 Command: ***D ............................286 Command: ***R ............................286 Command: **PS ............................286 Command: **B ............................287 Command: VI .............................. 287 Foreword Page 13...

  • Page 14: Manufacturer's Statement

    Some of these standards are listed in this manual. If, after reading this manual you have any questions or you are still unsure or unclear on any part of the Aurora NE Series, please do not hesitate to contact Acoem Australasia or your local Acoem Australasia distributor.

  • Page 15: Safety Information

    These symbols will also be found throughout this manual to indicate relevant safety messages. Note: Notes are used throughout this manual to indicate additional information regarding a particular part or process. If the equipment is used for purposes not specified by Acoem Australasia, the protection provided by this equipment may be impaired. Foreword...

  • Page 16: Important Safety Messages

    Always unplug the equipment prior to removing or replacing any components. Replacing Parts Replacement of any part should only be carried out by qualified personnel, using only parts specified by Acoem Australasia, as these parts meet stringent Acoem Australasia quality. Mains Supply Cord Do not replace the detachable mains supply cord with an inadequately rated cord.

  • Page 17: Warranty

    Warranty This product has been manufactured in an ISO 9001 facility with care and attention to quality. The product is subject to a 24-month warranty on parts and labour from the date of shipment. The warranty period commences when the product is shipped from the factory. Filters and other consumable items are not covered by this warranty.

  • Page 18: Service & Repairs

    Should you still require support after consulting the documentation, we encourage you to contact your local distributor for support. To contact Acoem Australasia directly, please e-mail our Technical Support Specialist group at support.au@acoem.com or to speak with someone directly: Please dial 1300 364 946 if calling from within Australia.

  • Page 19: Product Compliance And Approvals

    Product Compliance and Approvals The Aurora NE Series Multi Wavelength Nephelometers, as manufactured by Acoem Australasia, complies with the essential requirements of the directives listed below (including CE compliance). The respective standards have been applied: Low Voltage Directive (LVD) Directive 2014/35/EU...

  • Page 20: Manual Revision History

    Description: User Manual for the Aurora NE Series Multi Wavelength Nephelometers This manual is the full user manual for the Aurora NE Series Multi Wavelength Nephelometers. This manual contains all relevant information on theory, specifications, installation, operation, maintenance and calibration. Any information that cannot be found within this manual can be obtained by contacting Acoem Australasia.

  • Page 21: Introduction

    1. Introduction 1.1 Description The Aurora NE Series Multi Wavelength Nephelometers will measure, continuously and in real-time, light scattering in a sample of ambient air due to the presence of particulate matter (specifically, the scattering coefficient σ ). There are three different instrument variations that are used for various applications.

  • Page 22: Specifications

    The difference between these two angles gives the light scattering for the polar segment of 20 - 30. Common Features All the Aurora NE Series instruments include an internal sample pump and flow sensor for accurate flow control. Valves for automatic zero and span calibration, as well as for sample bypass are internal.

  • Page 23: Power Requirements

    Relative Humidity: 10 to 95% (non-condensing) • Pollution Degree: 2 (for indoor operation) • Maximum Altitude1: 2000 m above sea level Not intended for outdoor use. 1.2.4 Communications Bi-Directional For higher altitude contact Acoem Australasia for support/assistance. Introduction Page 23...

  • Page 24: Physical Dimensions

    Au ro ra NE Se ri es Use r M anu al 1 .3  RS232 port #1: Multidrop port used for multiple instrument connections on a single RS232.  RS232 port #2: Multidrop port used for multiple instrument connections on a single RS232. ...

  • Page 25: Nomenclature

    1.3 Nomenclature Span When gas of known Rayleigh factor is passed through the instrument and measured as a reference. This is often used to perform a precision check or calibration of the upper range of the instrument. Zero When air with no particulate matter is passed through instrument and measured as a reference.

  • Page 26: Background/Theory

    Both health and climate change are of a major concern to researchers and governments today. The ACOEM Aurora NE series of Nephelometers can be used to measure light scattering for all of these important applications.

  • Page 27: Background - Light Scattering

    Figure 1 – Scattering Influence on the Earth 1.4.1 Background – Light Scattering 1.4.1.1 Extinction Coefficients (σ Attenuation of light (that is, reduction in its intensity) is usually expressed using the Beer-Lambert law: Equation 1 Beer-Lambert Law where: = initial light intensity, = intensity after distance x, = distance, σ...

  • Page 28: Figure 2 - Light Scattering And Absorption

    Au ro ra NE Se ri es Use r M anu al 1 .3 The larger the value of  , the more rapidly the light is attenuated (i.e., reducing visibility). 1.4.1.2 Assumptions Light may be attenuated either by scattering off objects or by absorption by objects. Thus, the extinction coefficient ...
  • Page 29 1.4.1.3 Effects of Wavelength Absorption and scattering are dependent on the wavelength of the incident light. The Aurora NE Series uses a light source emitting light at three different wavelengths in the visible range. The three wavelengths (red 635 nm, green 525 nm and blue 450 nm) all produce differential scattering and are affected differently by particles of different size, shape and composition.

  • Page 30: Figure 3 - Optical Spectrum Of Aurora Ne Series

    Thus, the Aurora NE Series is equipped with a sample heater that, if enabled, will heat the sample as its humidity approaches the target setpoint as defined by the user. This decreases the relative humidity and evaporates the water droplets.

  • Page 31: Measurement Theory

    1.4.2 Measurement Theory The Aurora NE Series Nephelometers are designed to measure the optical properties of particulates in a controlled environment. Ambient sample air is drawn into the measurement cell by the sample pump. The light source illuminates the sample air in the measurement cell. The measurement cell is made so that it provides a dark background.
  • Page 32 PMT. The shutter glass is made of a material with a known transmittance that allows the Aurora NE Series to adjust for variations in the measuring system. This measurement does not rely on air scattering. The results from the shutter measure are stored as the shutter count and should be in the order of 1M to 10M for each wavelength.

  • Page 33: Figure 7 - Full Scatter Lightsource Distribution

    1.4.2.5.1 Full Scatter Distribution: The Aurora NE-100, NE-300 & NE-400 all produce the Full scatter distribution from 7 to 173 . The NE- 100 does not have the backscatter shutter, where as the NE-300 and NE-400 achieve Full Scatter by setting the backscatter shutter to the 0 position.

  • Page 34: Measurement Sequence

    Figure 9 – Polar Scattering (40 , 70 & 90 1.4.3 Measurement sequence The Aurora NE Series Nephelometers all have a similar measurement sequence; however, the timing for these events will change depending on the setting of the wavelengths, angles and measurement periods. 1.4.3.1 NE-100...

  • Page 35: Figure 10 - Aurora Ne-100 Measurement Sequence

    The timing of the measurement process is based on the following settings in the Calibration menu under the Measurement Settings: • Dark Period: Dark Count Measurement time (Default = 300ms). • Measure Period: Measure Count Measurement time (Default = 600ms). •...

  • Page 36: Figure 11 - Aurora Ne-300 Measurement Sequence

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 11 – Aurora NE-300 Measurement Sequence 1.4.3.3 NE-400 The Aurora NE-400 Multi Wavelength Polar Nephelometer measurement process is completed with three main steps: • Dark Count measurement. •...

  • Page 37: Filtering

    Filtering have various filtering options for on screen The Aurora NE Series Multi Wavelength Nephelometers display, data storage, data reporting and calibration. All filters operate independently and can be used simultaneously. The filtering is only applied to the scattering and measure ratio calculations.
  • Page 38 Au ro ra NE Se ri es Use r M anu al 1 .3 1.4.4.4 Fixed 1 minute The Fixed 1 minute filter is the average of readings over a 1 minute period. 1.4.4.5 None When the filtering is set to None, there is no filtering applied to the readings and are considered raw. Page 38...

  • Page 39: Calibration Theory

    1.4.5 Calibration Theory This section explain how the raw measurements of the Auror NE series Nephelometers are converted to real values for scattering. 1.4.5.1 Calculating the calibration curve The following is an example of a typical calibration of full scattering using CO calibration gas at a wavelength of 525nm.
  • Page 40 Au ro ra NE Se ri es Use r M anu al 1 .3 (����2) | �� × 273.15 × ���������������� ���������� ������ (����2) | �� ���������� ���� ���������������������� × 1013.25 Equation 8 Where: • (����2) | �� is the CO2 scattering coefficient at standard pressure and temperature. ����������...

  • Page 41: Calibration Example

    Calibration Example 0.0116 0.0114 0.0112 y = 8.174E+01x + 8.560E-03 0.011 0.0108 0.0106 0.0104 0.0102 0.01 0.0098 0.0096 0.0094 0.00E+00 5.00E-06 1.00E-05 1.50E-05 2.00E-05 2.50E-05 3.00E-05 3.50E-05 4.00E-05 Extinction coefficient [m Figure 13 – Aurora NE Calibration Curve In this example, the calibration coefficients are: M = 81.74 C = 8.56 * 10 1.4.5.2...
  • Page 42 Au ro ra NE Se ri es Use r M anu al 1 .3 1.4.5.3 Calculating the scattering coefficients from the raw counts Every measurement cycle, the Aurora NE nephelometer calculates the particle’s light scattering coefficient by following these steps: 1.

  • Page 43: Table 5 - Calibration Gas Constants

    4. Correcting for standard temperature and pressure The aerosol scattering coefficient must be then be corrected for standard temperature and pressure (if the option is selected in the menu): �� 1013.25 �� = �� × × ���������� ������ ���������� ���� ��...

  • Page 44: Table 6 - Full Scattering Calibration Values

    Au ro ra NE Se ri es Use r M anu al 1 .3 Table 6 – Full Scattering Calibration values Aurora Readings Full Scattering Wavelength FM200 r134 44.21 392.68 157.62 392.95 179.31 174.37 23.86 211.93 85.07 211.93 96.77 94.11 11.15 99.02 39.72...

  • Page 45: Instrument Description

    1.5 Instrument Description The major components of the Aurora NE Series Multi Wavelength Nephelometers are described below: Zero Filter Exhaust Filter Figure 14 – Major Components of Aurora NE Series 1.5.1 Main Enclosure The main enclosure is a sturdy aluminium construction with powder coating for additional protection.

  • Page 46: Power Supply

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 15 – Mounting Screw Locations 1.5.2 Power Supply The external, auto ranging power supply is rated at 100 to 250 VAC, 50 or 60 Hz. This means that it a can be connected to any domestic mains supply anywhere in the world via a standard IEC mains connector.

  • Page 47: Figure 18 - Ne-300 Measurement Cell Cross Section

    1.5.3.1 Measurement Cell The measurement cell is a critical part of the Instrument. It is within the cell that the optics, the electronics and the pneumatics all come together. The cell is pneumatically and optically sealed to prevent stray light and air from entering. It is made of black anodised aluminium with a special coating of matte black paint on the inside to reduce internal light reflections.

  • Page 48: Figure 20 - Ne-300 & Ne-400 Pmt And Cooler

    Au ro ra NE Se ri es Use r M anu al 1 .3 1.5.3.2.2 NE-300 & NE-400 PMT Figure 20 – NE-300 & NE-400 PMT and Cooler The Aurora NE-300 and NE-400 Multi-Wavelength Nephelometers both use a PMT with a broad bandwidth in the optical range of 450nm to 635nm.

  • Page 49: Figure 22 - Ne-100 Light Source

    1.5.3.4 Light Source The construction of the Light Source is similar for all the Aurora NE series Nephelometers. The main difference is that the NE-100 Light Source does not have the backscatter shutter capabilities. 1.5.3.4.1 NE-100 Light Source Assembly The light source uses an array of high-powered LEDs (Light Emitting Diodes) of specific wavelengths: Red (635nm), Green (525nm) and Blue (450nm).

  • Page 50: Figure 23 - Three Wavelength Light Source With Backscatter

    Au ro ra NE Se ri es Use r M anu al 1 .3 1.5.3.4.2 NE-300 Light Source Assembly The NE-300 Light Source uses the same LED construction as the NE-100. However, the NE-300 Light Source has the Backscatter Shutter which is moved into position using a servo motor. The backscatter shutter position is calibrated for 90 illumination and then stored on the light source control PCA.

  • Page 51: Figure 24 - Ne-400 Light Source

    1.5.3.6 Reference Shutter The reference shutter is used to periodically check the operation of the Aurora NE Series and to compensate for any variations in the light source intensity. The reference shutter consists of a rotary solenoid and a glass diffusor with known transmittance. It is mounted on a rotary solenoid and is switched in and out of the optical path.

  • Page 52: Microprocessor & Control Pca

    1.5.4 Microprocessor & Control PCA The microprocessor and control PCA’s are the heart of the Aurora NE Series. The microprocessor PCA takes the raw count data from the PMT and converts them to real σ values. It internally logs the data and stores it on the SD card or USB memory stick.

  • Page 53: Vent Ball Valve

    1.5.12 Colour Touchscreen Display The Aurora NE Series Multi Wavelength Nephelometers uses a colour touchscreen LCD and buttons to simply navigate through the menu structure. This allows the user to set up many of the features of the instrument, as well as providing real-time visual status of the instrument’s performance. The four buttons on the front panel and the LCD all interface to the LCD/Keypad PCA, and all the signals are transferred via the flat ribbon cable to the microprocessor PCA.

  • Page 54: External Connections

    Au ro ra NE Se ri es Use r M anu al 1 .3 1.5.13 External Connections Exhaust Sample Inlet Vent Power Switch Span Gas Communications Panel Chassis Fan Figure 28 – External Connections Diagram 1.5.13.1 Power Switch When you turn off the switch, it stops the power and systems inside from working. However, even when the switch is off, there is still some power (+24 volts) running internally.
  • Page 55 1.5.13.4 Span Gas This 1/4" brass fitting is used for connecting the calibration (span) gas to the instrument. Refer to Section 5 for instructions on the correct connection of the calibration setup. 1.5.13.5 Exhaust This 1/4" brass fitting is where the exhaust from the internal pump exits the instrument. It can be left disconnected.

  • Page 56: Figure 29 - Power And Communication Panel Diagram

    Au ro ra NE Se ri es Use r M anu al 1 .3 24 V Power Inlet RS-232 #2 RS-232 #1 External Inputs & Outputs Ethernet SD Card External Pump Control Figure 29 – Power and Communication Panel Diagram POWER IN The power inlet is where he 24 V external power supply is connected.
  • Page 57 External Pump Control This output is used to control the external pump controller kit for when an external pump is used in conjunction with the MFC option. Contact ACOEM for more details. Introduction Page 57...

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    This page is intentionally blank. Page 58...

  • Page 59: Installation

    2.1 Initial Check Packaging The Aurora NE Series is transported in packaging specifically designed to minimize the effects of shock and vibration that may occur during transportation. Acoem Australasia recommends that the packaging be kept if there is a likelihood that the instrument is going to be relocated.

  • Page 60: Figure 30 - Received Items

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 30 – Received Items Page 60...

  • Page 61: Opening The Instrument

    2.1.1 Opening the Instrument Open the front door of the enclosure to check the interior of the instrument. The door has a magnetic latch and can be opened by lightly pressing the door inwards and letting it spring open. Ensure that all pneumatic and electrical connectors are connected and that there are no loose items inside.

  • Page 62: Figure 33 - Front Access Panel Open

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 33 – Front Access Panel Open 3. Remove the remaining three or four thumb screws (depending on the chassis version) from the chassis lid and lift upwards, refer to Figure 34. Figure 34 –...

  • Page 63: Instrument Installation

    Figure 35 – Removing the Lid 5. Check that all pneumatic and electrical connectors are connected and that there are no loose items inside. If any visible and obvious damage exists, contact your supplier and follow the instructions in the claims for Damaged Shipments and Shipping Discrepancies section at the front of this manual.

  • Page 64: Siting And Sampling

    2.2.2 Siting and Sampling When choosing a location for the installation of an Aurora NE Series, it is best to consult the requirements from your local regulatory authority. As a suggestion, the Australian Standard AS2922 -1987 provides the following requirements for the sampling inlet position: •...

  • Page 65: Figure 36 - Sample Inlet Installation

    Figure 36 – Sample inlet Installation Installation Page 65...

  • Page 66: Wall Mounting Bracket Installation

    Au ro ra NE Se ri es Use r M anu al 1 .3 2.2.4 Wall Mounting Bracket Installation The wall mounting bracket option is used to mount the Aurora NE to a flat vertical surface. There are two versions of this option: Factory Installed and user installed. For the factory-installed version (E010112), the anti-rotation panel is already installed.

  • Page 67: Instrument Set-Up

    Step 3: Mount the wall mounting bracket to the vertical wall at a suitable height and location, making sure that it is straight and the sample inlet tube can be lined up directly with the sample inlet of the nephelometer. Four anchor fasteners will need to be installed into the wall. These need to be of suitable size (at least M6) and strength to hold the wall mounting bracket and nephelometer.

  • Page 68: Power Connections

    Au ro ra NE Se ri es Use r M anu al 1 .3 2.3.1 Power Connections CAUTION Always unplug the equipment prior to removing or replacing any components. CAUTION Do not replace the detachable mains supply cord with an inadequately rated cord.

  • Page 69: Pneumatic Connections

    2.3.2 Pneumatic Connections Figure 41 – Pneumatic Ports The Aurora NE Series instrument has four pneumatic port connections: SPAN, SAMPLE, VENT, and EXHAUST. Span Port • Purpose: Connects to the calibration (span) gas delivery system. • Connection: Uses a 1/4" brass fitting. Ensure it is tightly fastened to prevent calibration gas leaks.

  • Page 70: Communications Connections

    2.3.4 Instrument Set-up The Aurora NE Series Multi Wavelength Nephelometers will be delivered in a default configuration that in most installations will be suitable. The user may want to change some settings to suit their specific needs or regulations. Listed below are the factory settings.

  • Page 71: Transporting/Storage

    Instrument Setting Factory Setting Manual Section Filter (Calibration) Kalman Refer to section 3.4.3.2 The instrument is shipped fully calibrated. Transportation, vibration, and atmospheric conditions may cause some short-term drift in the instrument’s calibration. On initial power up the instrument measurements should be close to what is expected. It is good to check for any abnormal readings or errors that may have arisen from transportation by operating the instrument for a couple of hours.
  • Page 72 Au ro ra NE Se ri es Use r M anu al 1 .3 Note: Acoem Australasia recommends to use the same packing material in which the instrument is delivered. 8. The instrument is now ready for long-term storage or transportation.

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    This page is intentionally blank. Page 74...

  • Page 75: Operation

    This is not applicable for NE-100. 3.2 Measurement The Aurora NE Series Multi Wavelength Nephelometers will continually cycle through a sequence of measurements to provide the parameters needed to calculate the final scattering measurements. Refer to section 1.4.3 (Measurement Sequence) for sequence details for each instrument type.

  • Page 76: General Operation Information

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.3 General Operation Information The primary interaction with the instrument is through the colour touch screen on the front panel. This interface allows the user to changes settings, obtain readings, view diagnostics and perform calibrations.

  • Page 77: Pages

    Object Name Object Description Menus Pop-up menus Dialogs Pop-up dialog boxes Single Field Widget Display a number or text string within its own panel Keypad Pop-up keypad to enter numerical data 3.3.2 Pages Each screen is a page, with a name and a unifying concept. Pages are coloured according to their general area of concern.

  • Page 78: Navigation Buttons

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.3.2.1 Navigation buttons Each button shows the name of the page it will open. Once a page is opened, the navigation row will show its child pages, if this page has any; otherwise, it will show its siblings. The current selected page button will be the same colour as the background;...

  • Page 79: Pages, Menus & Panels

    Figure 46 – Home Page (NE-400) The home page for the Aurora NE Series is divided into three areas; current readings (1), sample readings (2) and instrument state (3). The data displayed in these areas will vary depending on the instrument type.

  • Page 80: Figure 47 - Current Reading Single Field Widgets (Ne-100)

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.1.1 Current Readings For the NE-100, there is a single field widget for the chosen full scatter wavelength that is updated after every measurement cycle. Figure 47 – Current Reading Single Field Widgets (NE-100) For the NE-300, the widgets display all the readings for each full scatter wavelength as well as the readings for the backscatter measurements.

  • Page 81: Figure 49 - Current Reading Single Field Widgets (Ne-400)

    Figure 49 – Current Reading Single Field Widgets (NE-400) Note: If you use the press and hold method on any of the three sigma widgets you will get a pop- up menu that allows you to change the decimal places for all sigma values. 3.4.1.2 Sample Readings Some basic information is presented in this panel, represented by the following fields:...

  • Page 82: Readings

    Note: If the Aurora NE Series is configured to measure its full complement of three wavelengths and twenty angles, the panel on the right will be quite long. Use the scroll bar to move up and down the list.

  • Page 83: Figure 53 - Sensor Readings Panel

    3.4.2.1 Sensor Readings Figure 53 – Sensor Readings Panel The environmental sensor information is presented in this panel. The information is grouped by headings and represented by the following fields depending on what hardware is enabled and instrument type: Sample ...

  • Page 84: Figure 54 - Sigma Panel Ne-100

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.2.2 Sigmas NE-100 The sigma information is presented in this panel for the selected wavelength. There is no angle information because the NE-100 only measures Full scattering at one wavelength. All the parameters used in the calculation of this sigma are listed as follows: ...

  • Page 85: Figure 55 - Readings Page (Ne-300)

    3.4.2.3 Sigmas NE-300 This panel displays all the Full and Back scattering measurements for each wavelength. All the parameters used in the calculation of each sigma (similar to Figure 54) are found in the wavelength child pages (635nm, 525nm, or 450nm). Touching one of the wavelength pages will display two panels.

  • Page 86: Figure 57 - Readings Page (Ne-400)

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.2.4 Sigmas NE-400 This panel displays the scattering measurements for each wavelength and angle. Scroll to the bottom of the Sigmas panel to see all the readings. Figure 57 –...

  • Page 87: Cal

    By touching the Angle single field Widget, a popup menu will appear allowing the user to select which angle’s information is displayed on the wavelength panel. The number of angles that appear in the popup menu list will depend on the number of angles selected in the measurement settings panel on the Cal page (refer to Section 3.4.3).

  • Page 88: Figure 60 - Measurement Settings Panel Ne-400 (Service Menus Enabled)

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.3.1 Measurement Settings Figure 60 – Measurement Settings Panel NE-400 (Service Menus enabled) The measurement settings panel contains a series of parameters that are critical to the operation and calibration of the instrument.
  • Page 89  Periods: - The time periods for the measurement control the LEDs. These are factory settings and should not be changed without advice. These parameters are only displayed then Service Menus are enabled. o Dark: - The period when the LEDs are off and is a background reference measurement recorded as the Dark Count.

  • Page 90: Figure 61 - Cancel And Accept Buttons For Measurement Settings Panel (Ne-400)

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 61 – Cancel and Accept Buttons for Measurement Settings Panel (NE-400) Figure 62 – Popup Confirmation Box Figure 63 – Status Changing to Uncalibrated Page 90...

  • Page 91: Figure 64 - Calibration Settings Panel (Service Menus Enabled)

    3.4.3.2 Calibration Settings Figure 64 – Calibration Settings Panel (Service Menus enabled) The calibration settings panel has a series of buttons and settings to control the source of the measurement sample as well as the duration of the calibration sequence. The Calibration Settings panel is the same for all instrument types.

  • Page 92: Figure 65 - Calibration Files Button

    Au ro ra NE Se ri es Use r M anu al 1 .3 Note: Changing the valves takes approximately 5 seconds, during which time the valve switches will turn grey to indicate they are in transition.  Calculation Factors: - Entries that determine how long a calibration will take and how the instrument will respond.

  • Page 93: Figure 66 - Calibration Files Dialog Box

    The backup files section of the calibration files dialog box allows the user to load, a factory backup, last day, last week, or last month. The factory option is a backup of the Aurora NE Series as it left the factory.

  • Page 94: Figure 68 - Last Day Backup File Load/Save/Delete Popup Menu

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 68 – Last Day Backup File Load/Save/Delete Popup Menu Selecting load will popup a confirmation dialog box with information about the configuration file (refer to Figure 69). Selecting Accept on the confirmation dialog box will proceed to load the calibration. Figure 69 –...

  • Page 95: Figure 71 - Save Dialog Box

    In the user files section of the calibration files dialog box, we have a button to save new calibration file configurations, we have a field labelled platform that allows the user to select where the files are stored and under that, we have a running list of calibration saves the user has manually made using the save new file button.

  • Page 96: Figure 73 - Calibration Configuration Popup Menu

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 73 – Calibration Configuration Popup Menu Note: The user can have a total of 100 calibration saves as the list increases the dialog box will be quite long.

  • Page 97: Figure 75 - Calibration Schedule Child Page

    3.4.3.4 Schedule Figure 75 – Calibration Schedule Child Page The schedule child page allows for the scheduling of calibrations and precision checks. This child page is broken up into five panels, Full Calibration, Zero Adjust, Zero Check, Span Calibrate, and Span Check.

  • Page 98: Figure 76 - Full Calibration Panel

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 76 – Full Calibration Panel 3.4.3.4.1.1 Manual Full Calibration Pressing the Manual button will bring up a confirmation dialog box to commence a Full Calibration. Figure 77 –...

  • Page 99: Figure 78 - Setting Scheduled Calibration Date

     Scheduled – this button must be pressed (Green) in order for the scheduled calibration to commence at the set time. Once the calibration commences, it will continue in the same sequence as the manual calibration. Figure 78 – Setting Scheduled Calibration Date Figure 79 –...

  • Page 100: Figure 80 - Setting Scheduled Calibration Period

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 80 – Setting Scheduled Calibration Period When the calibration sequence is started (either Manually or Scheduled) the calibration alert icon will appear on the left of the page. Figure 81 –Started Full Calibration Pressing the calibration alert will popup a manual calibration dialog box.

  • Page 101: Figure 82 - Manual Calibration Dialog Box

    3.4.3.4.1.3 Stop Calibration If a calibration has started and you decide that you want to stop it, The Stop Calibration function on the popup dialog box can be pressed. Figure 82 – Manual Calibration Dialog Box Pressing the stop calibration button will popup a confirmation dialog box, selecting cancel will close the dialog box and continue with the calibration, selecting accept will change source valves back to sample and change the state to complete and run a sample purge.

  • Page 102: Figure 84 - Zero Adjust Panel

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.3.4.2 Zero Adjust Figure 84 – Zero Adjust Panel This panel is used to schedule or manually perform a zero calibration. The Zero Adjust can be initiated or stopped using the same methods as the Full Calibration.

  • Page 103: Figure 86 - Span Calibrate Panel

    3.4.3.4.4 Span Calibrate Figure 86 – Span Calibrate Panel This panel is used to schedule or manually perform a span calibration. The Span Calibrate can be initiated or stopped using the same methods as the Full Calibration. The Span Calibrate will change the source from sample to span and then purge the measurement cell full of Calibration Gas.

  • Page 104: Figure 88 - Calibration Checks Child

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.3.5 Checks Figure 88 – Calibration Checks Child Page NE-400 The checks child page displays the status of the most recent calibrations initiated from the Schedule child page.

  • Page 105: Figure 89 - Span Check Panel Ne-400 Showing 0

    o For the NE-400–  Sigma – The measured Sigma for each wavelength and selected angle when the calibration was completed  Measure Count – The recorded measure count for each wavelength and selected angle when the calibration was completed Figure 89 –...

  • Page 106: Figure 90 - Checks Child Page Angles Popup Menu

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 90 – Checks Child Page Angles Popup Menu Figure 91 – Angle changed from 0° to 50° Zero Adjust Displays the results and setting from the most recent Zero Adjust. The sigma readings displayed are measurements prior to any adjustment of the calibration offset.

  • Page 107: Figure 92 - Scalars Child Page

    Span Check Displays the results and setting from the most recent Span Check. The sigma readings displayed are measurements at the end of the check. 3.4.3.6 Scalars Figure 92 – Scalars Child Page The scalars child page (only available from the Checks child page) shows all of the numeric factors of the last actual calibration (whether it was a full calibration, zero adjust, or span calibration).

  • Page 108: Figure 94 - Scalars Panel

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.3.6.2 Scalars Figure 94 – Scalars Panel In addition to the calibration settings and environmental readings at the time of calibration, this panel shows the various calculated values for each wavelength and angle. This panel exists for troubleshooting;...

  • Page 109: Figure 95 - Sensors Child Page

    3.4.3.7 Sensors Figure 95 – Sensors Child Page The sensors child page has two panels, Environmental Readings and Leak Check. This page is the same for all instrument types. This page is important as it is where the environmental sensors can be calibrated and a leak check performed.

  • Page 110: Figure 97 - Sample Temperature Popup Menu

    Au ro ra NE Se ri es Use r M anu al 1 .3 The Environmental Readings panel shows the current sensor reading updated every second. The information is grouped by headings and represented by the following fields: Sample  The current sample temperature, pressure, RH measured inside the measurement cell.

  • Page 111: Figure 99 - Sample Temperature Popup Menu Decimals Expanded

    Touching the decimals menu item expands the available options. Figure 99 – Sample Temperature Popup Menu Decimals Expanded Note: There are a number of options to select from for the decimal places menu, use the touch and hold method followed by a drag up or down to view the full menu. Touching the calibrate menu item will popup a calibration dialog box allowing the user to calibrate the sensor.

  • Page 112: Comms

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.3.7.2 Leak Check The Leak Check panel displays the result of the latest Leak Check. For details on performing a leak check see the section 6.4.10. Figure 101 –...

  • Page 113: Figure 103 - Ethernet Panel

    DHCP mode means the instrument requests an IP address from its gateway. Protocol selects how the instrument communicates: either the Aurora legacy protocol (not recommended) or the Acoem protocol. The IP Address, Netmask Gateway, and MAC Address are displayed for this hardware and can be use for setting up the network connection.

  • Page 114: Figure 105 - Serial Panel Baudrate Selection

    The Serial panel provides details for setting up the serial ports. There are two RS232 communication ports available on the Aurora NE series. They both have identical capability but operate independently. They are the same for each instrument type. For details on connecting to these ports, please refer to the section 4.1.

  • Page 115: Figure 106 - Serial Panel Protocol Selection

    Figure 106 – Serial Panel Protocol selection 3.4.4.4 There is one USB type B communications port on the side of the Aurora NE series. It can be used for connection to another computer running Acoem Congrego or Airodis software. Refer to section 4.2 for details on using USB communications.

  • Page 116: Figure 108 - Analog Child Page

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.4.5 Analog Figure 108 – Analog Child Page The Analog communications child page contains two panels. Analog inputs and Analog Outputs. These are the same for each instrument type. 3.4.4.5.1 Analog Inputs Figure 109 –...

  • Page 117: Figure 110 - Analog Outputs Setup Panel

    Each of the Analog Inputs in the system are displayed as fields on this panel. Most are internal and do not need configuring. Scroll down to see the readings from the external analog inputs (Channel 0 to Channel 3). If you enable service menus (refer to Section 3.4.5), extra information is available to enable you to edit the slope and offset and reference voltage for external analog inputs.

  • Page 118: Config

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.4.6 Digital Figure 111 – Digital Child Page The Digital communications child page contains two panels. Digital Inputs and Digital Outputs. These are the same for each instrument type. This page is only available when service menus are enabled. The Digital Inputs and Digital Outputs are connected to the twenty-five-way IO connector on the side of the instrument.

  • Page 119: Figure 113 - User Settings Panel

    The Config page manages the user settings and data logging configuration. It has two panels and a button; the User Setting panel, Datalog parameters panel, and the User Settings Files button. The configs child pages, status, hardware and factory are primarily intended for technician use. 3.4.5.1 User Settings Figure 113 –...

  • Page 120: Figure 114 - Enabled Service Menus Button

    Au ro ra NE Se ri es Use r M anu al 1 .3 Note: The filter can be changed at any time; the Aurora calculates all of the filtered values (None, Kalman, 1 minute, 5 minutes, and Rolling Average) for every measurement. The filter selection merely controls which one is displayed.

  • Page 121: Figure 115 - Datalog Parameters Panel

     Legacy Datalogging – This button sets the Aurora NE Series to emulate an Aurora 1000, 3000, or 4000 as closely as possible. This may be useful for legacy installations but it does not take full advantage of the power of the Aurora NE Series.

  • Page 122: Figure 117 - User Settings Files Button

    Au ro ra NE Se ri es Use r M anu al 1 .3 Be aware that simply asking for some parameters (such as Sigma) means logging up to sixty parameters; a sigma for every measured wavelength and angle. You can specify a smaller subset by selecting just one wavelength and/or one angle to be logged.

  • Page 123: Figure 119 - Backup Files

    The backup files section of the user settings dialog box allows the user to load, a factory backup, last day, last week, or last month. The factory option is a backup of the Aurora NE Series as it left the factory.

  • Page 124: Figure 121 - Backup File Load Confirmation Dialog Box

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 121 – Backup File Load Confirmation Dialog Box Selecting save will copy the file to the USB. 3.4.5.3.2 User Files Figure 122 – User Files In the user files section of the user settings dialog box, we have a button to save a new user setting configuration, we have a field labelled platform that allows the user to select where the files are stored and under that, we have a running list of user setting configuration saves the user has manually made...

  • Page 125: Figure 124 - Changing File Index From 0 To 22

    Using the touch method on the file index will bring up the keypad. Using the keypad type in the number for the user setting configuration save, form 0 - 99, then press the Enter key. Figure 124 – Changing File Index From 0 to 22 After the save button is pressed a new user setting configuration save is created and added to the end of the list.

  • Page 126: Figure 126 - User Settings Configuration Popup Menu

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 126 – User Settings Configuration Popup Menu Selecting load will popup a confirmation dialog box with information regarding the save. Selecting cancel will reject the action and selecting accept will load the user settings. Figure 127 –...

  • Page 127: Figure 128 - Status Child Page

    3.4.5.4 Status The Status page reflects the current status of the instrument as well as a history of previous events. The two panels on this page are the same for each instrument type. Figure 128 – Status Child Page 3.4.5.4.1 Instrument Status The Instrument status panel contains a list of all possible errors and their current status.

  • Page 128: Figure 130 - Instrument Status Popup Dialog Box For Error Detail

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 130 – Instrument Status Popup Dialog Box for Error Detail 3.4.5.4.2 Events The Events panel shows the event log for the instrument. By default, it points to the current date and time and updates as new events are added.

  • Page 129: Figure 132 - Event Panel Navigation Buttons

    Figure 132 – Event Panel Navigation Buttons The four buttons at the top allow filtering of what events are displayed.  User events (Green) – Displays any user interaction through the user interface.  Instrument events (White) – Displays automatic events initiated by the instrument. ...

  • Page 130: Figure 134 - Hardware Child Page

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 134 – Hardware Child Page 3.4.5.5.1 Hardware Panel Figure 135 – Hardware Panel The Hardware panel is grouped by headings and is represented by the following fields and buttons. Flow ...

  • Page 131: Figure 136 - Heater Control Popup Selection

     Duty Cycle – The percentage of power applied to the Internal Sample Pump in order to maintain the sample flow at the desired Target. The Duty Cycle (0% to 100%) is calculated by an internal PID control Algorithm. Figure 136 – Heater Control Popup Selection Heaters.

  • Page 132: Figure 138 - Installed Options Panel (Service Menus Enabled)

    Note: If the service menus are enabled, then the Hardware panel will display many more parameters in relation to the Reference Shutter, System Timing, and the Kalman Filter. It is strongly recommended NOT to change any of these parameters unless advised by Acoem technical support.
  • Page 133 Sample (inside measurement cell), Chassis (mounted on the microprocessor board) or Ambient (Mounted outside near inlet. TBA). Sample is the default setting. Note: MFC option is not available at the time of writing this manual. Contact Acoem for further details.

  • Page 134: Figure 139 - Hardware Backup File Options

    The Power page allows manual operation of power to various parts of the circuitry. The Emulation page contains settings to manually emulate readings and controls. Note: It is strongly recommended NOT to change any of these parameters unless advised by Acoem technical support. Page 134...

  • Page 135: Figure 141 - Pids Child Page

    Figure 141 – PIDs Child Page 3.4.5.6 Factory Figure 142 – Factory Child Page (Service Menus enabled) This page contains information unique to the instrument factory setup. Generally, this page is not required to be used for normal operation. It has two panels and three buttons; the Identification panel, Lightsource Configuration panel the Parameter Dump, Edit and Lightsource Files buttons.

  • Page 136: Figure 143 - Identification Panel (Service Menus Enabled)

    Au ro ra NE Se ri es Use r M anu al 1 .3 3.4.5.6.1 Identification Panel Figure 143 – Identification Panel (Service Menus Enabled) The identification information is presented in this panel. The information is grouped by headings and represented by the following fields and buttons: ...

  • Page 137: Figure 144 - Lightsource Configuration Panel (Service Menus Enabled)

    This panel has specific information that is stored inside the light source specific to its calibration and instrument type. These parameters must not be changed unless instructed by ACOEM technical support team. The information is grouped by headings and represented by the following fields: ...

  • Page 138: Figure 145 - Lightsource User Files Options

    Au ro ra NE Se ri es Use r M anu al 1 .3  LED 1, LED 2, LED 3 – The Intensity setting of each series of LEDs for each wavelength installed in the instrument. LED1 = 635nm, LED = 525nm, LED3 = 450nm. Adjustment is from 1 to 254. Backscatter shutter (NE-300, NE-400 only) ...

  • Page 139: Figure 146 - Parameter Dump Storage Location Selection

    Figure 146 – Parameter Dump Storage Location Selection The Parameter Dump is a feature of the Aurora NE series that allows a manual download of ALL instrument parameters. It is similar to the EE Dump feature in the Aurora series, only more detailed.

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  • Page 141: Communications

    4. Communications Figure 148 – Communication Ports The Aurora NE Series Multi Wavelength Nephelometers has a number of different interfaces for communication with other equipment (RS232, USB, 25 pin digital/analog input/output, and TCP/IP network). Bluetooth will be optional. A demonstration version of Acoem Australasia’s Airodis software is included with the instrument, enabling basic data downloads and remote operation from a PC running a supported MS Windows operating system.

  • Page 142: Serial Connection Setup

    0 as default. 4. Select the baudrate to suit your application. 5. Choose the protocol; Aurora or Acoem. Aurora is a legacy and won’t give you the full benefits of the Aurora NE Series 6. Connect a standard straight-through RS-232 cable male end of the connector into the female port on the instrument.

  • Page 143: Usb Communication

    USB disconnection errors on a data logger. Once the connection has been made between the Aurora NE Series and a PC, windows will automatically install a driver and set up a VSP (Virtual Serial Port). You will need to check the device manager to determine the number of the new serial port.

  • Page 144: Tcp/Ip Network Communication

    Au ro ra NE Se ri es Use r M anu al 1 .3 4.3 TCP/IP Network Communication Instruments can be accessed using a TCP/IP connection. Figure 152 shows examples of some possible configurations for remote access. Figure 152 – Example of Typical Network Setups Note: In Figure 152 all the IP addresses are taken as an example.

  • Page 145: Setting Network Port Setup

    4. Touch the Netmask and using the keypad set the Netmask 5. Touch the Gateway and using the keypad set the Gateway 6. Choose the protocol; Aurora or Acoem. Aurora is a legacy and won’t give you the full benefits of the Aurora NE Series 7.

  • Page 146: Figure 154 - Lan Network Set-Up (Airodis)

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 154 – LAN Network Set-Up (Airodis) Below is an example of Airodis setup for a WAN network. Ensure the IP address is set the same as on the remote modem/router.

  • Page 147: Analog And Digital Communication

    4.4 Analog and Digital Communication The 25-pin analog and digital I/O port on the side panel of the instrument can be use to connect to external data logging systems, PLC, or other computer equipment for control and data recording. The connector has four main Functions. Analog Outputs, Analog Inputs, Digital Inputs, and Digital Outputs.

  • Page 148: Analog Outputs

    Au ro ra NE Se ri es Use r M anu al 1 .3 4.4.1 Analog Outputs The instrument is equipped with six analog outputs that can be set to provide 0 – 5 V voltage outputs. The analog outputs are tied to user-selected parameters. See section 3.4.4.5.2 for further details on setting these.

  • Page 149: Configure Instrument Internal Logging

    Sigma 635 0°, Sigma 450 90°, etc.). The Aurora NE Series has a logging capacity for more than +10 years of 1 second data. Remember though, that large amounts of data will take longer to download and store. 1 minute logging is recommended for most applications.

  • Page 150: Figure 157 - Data Logger Storage Location

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 157 – Data Logger Storage Location 2. Select the period (interval) at which the parameters will be logged using the period field Figure 158 – Data Logging Interval 3.

  • Page 151: Figure 159 - Datalog Parameter Dialog Box

    Figure 159 – Datalog Parameter Dialog Box 4. Select none, and a list will pop-up with the available parameters to select from Figure 160 – Datalog Parameter Dialog Box Parameter Selection 5. Select a parameter to log. For this example, we will choose Sigma. Communications Page 151...

  • Page 152: Figure 161 - Example Parameter Selection

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 161 – Example Parameter Selection 6. Press accept to add your selected parameter to the list. Just below the datalog parameters panel a set of buttons will appear; Accept and Cancel. Selecting accept will save the changes and selecting cancel will revert the changes.

  • Page 153: Data Collection

    USB or SD card reader. Locating the Year, Month, Day folder with the desired data file. And loading it into MS EXCEL for evaluation.  Acoem Aorodis software by downloading over a RS232, USB or TCPIP connection. Refer to section 4 for setup details. Communications...

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  • Page 155: Calibration

    5. Calibration 5.1 Overview The following sections describe how to calibrate all the sensors and measurements for the Aurora NE Series Nephelometers. The procedure is the same for all instrument types. Different settings for each instrument are shown in the tables. The process of calibration to ensure accurate scattering measurement is: 1.

  • Page 156: Sample Temperature Calibration

    Au ro ra NE Se ri es Use r M anu al 1 .3 Note: This may take several turns before being able to remove as the threaded body of the Temperature Pressure RH Sensor is quite long. 6. Once the sensor is removed from the cell body reconnect the wiring loom and rest the sensor in the chassis then power up the instrument.

  • Page 157: Post Sample Sensor Calibration

    2. Navigate to the Cal page then the sensors child page, on the Environmental Readings panel under the heading Sample select the RH with the press and hold method. 3. This will popup a menu, select calibrate from the bottom of the menu. 4.

  • Page 158: Chassis Temperature Calibration

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 164 – Location of The Chassis Temperature Pressure RH Sensor 5.3.1 Chassis Temperature Calibration Follow the procedure to remove the sensor before trying to calibrate the sensor. 1.

  • Page 159: Chassis Relative Humidity Calibration

    4. This will popup a calibration dialog box. Note: Ensure the units of measure setup for the chassis Temperature Pressure RH Sensor and the calibrated reference are the same. 5. Select the value field in the calibration dialog box and using the keypad enter the value of the calibrated pressure reference and press enter.

  • Page 160: Figure 165 - Internal Pump Flow Settings

    Au ro ra NE Se ri es Use r M anu al 1 .3 Equipment Required  Calibrated Flow Meter (Use a flow meter with a 0 - 10 lpm range set to volumetric flow) Procedure 1. Navigate to the Config page and then to the Hardware child page. Ensure the flow settings on the Installed Options panel are set as per Figure 171Error! Reference source not found..

  • Page 161: Multipoint Flow Sensor Calibration

    Figure 166 – Flow Calibration Popup 10. When you press enter, the dialog box will calculate a new calibration slope. Select accept to apply the calibration or cancel to abort. See Figure 167. Figure 167 – Flow Calibration Slope and Offset 11.

  • Page 162: Figure 168 - Trendline Format Settings

    Au ro ra NE Se ri es Use r M anu al 1 .3 2. Connect the outlet of the calibrated flow meter to the sample port of the Aurora NE. Make sure the calibrated flow meter measurement is set to volumetric. Note: It is advised to use a filter on the inlet of your flow meter for extra protection.

  • Page 163: Mfc Option Calibration

    16. Repeat steps 9,8,7,6,5 and 4 to verify the calibration is correct. Figure 170 – Example Post Calibration Flow Check 5.4.3 MFC Option Calibration This option is not available at the time of releasing this manual. Please contact ACOEM for further details. Calibration Page 163...

  • Page 164: Full Calibration (Span And Zero)

    Au ro ra NE Se ri es Use r M anu al 1 .3 5.5 Full Calibration (Span and Zero) The full calibration performs a two-point calibration on the Instrument. The span point uses calibration gas, the zero point use internally filtered particle free air taken from the sample inlet. A full calibration will modify both the span and zero points on the calibration curve.

  • Page 165: Configuration Setup

    > The CO calibration gas cylinder should be fitted with a CO specific brass regulator. o For a span calibration we recommend using FM200 gas which is known for its higher Rayleigh scattering coefficient. > For best calibration results we recommend purchasing a gas cylinder of high purity (99.9%) FM200.

  • Page 166: Figure 172 - Calibration Settings Child Page

    Au ro ra NE Se ri es Use r M anu al 1 .3 Table 14 – Calibration Settings - Calculation Factors Calculation Factors NE-100 NE-300 NE-400 Filter Kalman Kalman Kalman Cal Measure (mins) Cal Purge (mins) Sample Purge (mins) Calibration Gas: FM200 FM200...

  • Page 167: Procedure

    5.5.3 Procedure Before beginning the Full calibration, open the cylinder shutoff valve on your calibration gas. When the calibration is complete it is advised to close the cylinder shutoff valve. Navigate to the Cal page then the Schedule child page, under the full calibration panel, press the manual button.

  • Page 168: Verification

    Au ro ra NE Se ri es Use r M anu al 1 .3 10. Sample Measure (Duration = continuous) Figure 174 – NE-300 Full Calibration Graph 5.5.4 Verification When the calibration is complete, navigate to the Cal page and then the Checks child page. The results of the Zero Adjust, Zero Check, Span Calibrate and Span Check will be there for each wavelength and angle measured.

  • Page 169: Configuration Setup

    5.6.1 Configuration Setup Typically, CO is used for the precision checks. The setup of the calibration system in the section 5.5.1 is the same for the precision check. The only difference is that the CO cylinder shutoff valve is left open if doing regular precision checks.

  • Page 170: Verification

    Au ro ra NE Se ri es Use r M anu al 1 .3 5.6.3 Verification When the Precision check is complete, navigate to the Cal page and then the Checks child page. The results of the Zero Check and Span Check will be there for each wavelength and angle measured. Refer to Section Error! Reference source not found..

  • Page 171: Verification

    4. Sample Purge (Duration = Sample Purge. 2 minutes) 5. Sample Measure (Duration = continuous) The Span Calibrate will proceed as follows: 1. Span Purge (Duration = Cal Purge. 20 minutes) 2. Span Measure (Duration = Cal Measure. 5 minutes) Result stored as Span Calibrate on the Checks page.

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  • Page 173: Service

    (250 V/10 A minimum requirement). 6.2 Maintenance Tools To perform general maintenance on the Aurora NE Series the user may require the following equipment:  Customizable Test Equipment Case PN: H070301 ...

  • Page 174: Maintenance Schedule

    6.3 Maintenance Schedule The maintenance intervals are determined by compliance standards that differ in various regions. The following is recommended by Acoem Australasia as a guide. Compliance with local regulatory or international standards is the responsibility of the user. Table 17 – Maintenance Schedule...

  • Page 175: Clock Check

    Touch either of these fields and using the keypad change the date or time respectively. If the Aurora NE is connected to ACOEM Airodis software, then you can use the Set Logger Clock feature in the Station Tab to synchronise the time with the Airodis server.

  • Page 176: Sample Inlet Cleaning

    Au ro ra NE Se ri es Use r M anu al 1 .3 3. Remove the lid and use the compressed air to blow the dust from the instrument, going from right to left. Do not use any solvents or harsh cleaning chemicals during this process. 6.4.4 Sample Inlet Cleaning The sample inlet and insect trap require cleaning on a regular basis due to its exposure to ambient...

  • Page 177: Zero Filter Replacement

    7. Hand-tighten the 1/4" brass nut until the DFU is firmly in place and won’t easily pull out. This half of the DFU is held in place by a Teflon ferrule. Do not over-tighten the brass nut or you will deform and damage the Teflon ferrule.

  • Page 178: Exhaust Filter Replacement

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 178 – Zero and Exhaust Filters 6.4.7 Exhaust Filter Replacement The Exhaust filter sits inside the chassis and is easily accessible using the chassis door. Its inline flow path is between the exhaust of the cell and the inlet on the internal pump.

  • Page 179: Measurement Cell Cleaning

    6.4.8 Measurement Cell Cleaning The below procedure outlines the steps required to clean the measurement cell. 1. Switch off the Aurora NE. 2. Open the door and remove the lid. Follow the instructions in Section 2.1 (Opening the instrument) 3. Unplug the light source ribbon cable connected to the bottom side of the light source by placing your hands on top of the cell body and using your thumbs to evenly press each side of the cable release tabs outwards, ejecting the ribbon cable.

  • Page 180: Figure 181 - Location Of Light Source Screws

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 181 – Location of Light Source Screws 6. Even with the four screws removed the light source will be held in place only by the O-ring seal. Gently break the seal and gently pull the light source straight out.

  • Page 181: Figure 183 - Cell Body Clean Before And After

    Figure 183 – Cell Body Clean Before and After Note: Do not leave fingerprints or any residue within the cell. 9. Inspect the integrity of the O-ring, looking for cracks, damage to the sealing face surface, and dust. Replace if required. 10.

  • Page 182: Optical Chamber Cleaning

    Au ro ra NE Se ri es Use r M anu al 1 .3 6.4.9 Optical Chamber Cleaning Cleaning of the optical chamber requires addressing the following sub-assemblies: PMT Assembly Reference Shutter Assembly Light Source Cleaning Light Trap Mirror The following sections cover the procedures for removing the optical cell and outlines the steps required to gain access to the internal assemblies mentioned above for optical chamber cleaning.

  • Page 183: Figure 186 - Sample Inlet Tube Location

    Figure 186 – Sample Inlet Tube Location 5. Remove the filter holder bracket by unscrewing the 2 captive screws and then place on one side. Figure 187 – Filter Holder Captive Screw Location 6. Disconnect the following connectors: a. Light source ribbon cable b.

  • Page 184: Figure 188 - Indication Of Access For Cell Bracket Captive Screws

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 188 – Indication of Access for Cell Bracket Captive Screws 8. Slide the cell forward and to the left (be careful not to damage the light source ribbon cable) Just enough to be able to access the two screws that secure the sample manifold to the cell.

  • Page 185: Figure 190 - Placement Of Sample Manifold Assembly

    10. The manifold is now only held in place by an O-ring. Lift the sample manifold off the cell and place it on top of the chassis directly above (ball valve side up) with some bubble wrap under it for protection.

  • Page 186: Figure 192 - Location Of Brass Nuts

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 192 – Location of Brass Nuts 2. Move the PMT end plate away from the tube casing breaking the O-ring seal. Figure 193 – PMT Endplate Removal CAUTION The PMT is sensitive to light, caution should be taken to reduce the amount of light exposed to the PMT such as a darkened room or damage will occur to the...

  • Page 187: Figure 194 - Covered Pmt Window

    Figure 194 – Covered PMT Window 4. Remove the tube casing PMT end. Support the top of the optical cell with one hand and with the other hand firmly grip the twist of the tube casing while slightly pulling away from the block until you break the seal of the O-ring.

  • Page 188: Figure 196 - Light Trap Endplate Removal

    Au ro ra NE Se ri es Use r M anu al 1 .3 Note: The endplate is held in by a friction fit of the surrounding O-ring. You may need to use plastic shims to aid in breaking the seal. Once the seal of the O-ring is broken stop removing the endplate.

  • Page 189: Figure 197 - Endplates And Tube Casings Removed

    Figure 197 – Endplates and Tube Casings Removed 9. Remove the temp, pressure and RH sensor and the light source. a. Remove the cable connecting the TPRH sensor to the light source (red arrow) and unscrew the sensor from the block (green arrow) turning the sensor housing counter clockwise. Figure 198 –...

  • Page 190: Figure 199 - Location Of Light Source Screws

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 199 – Location of Light Source Screws 10. The optical cell is now fully exposed. Inspect the quality of the paint on the spacers and baffles, with clean dry oil-free air remove any built-up dust, inspect all painted surfaces of the removed assemblies, clean the light trap mirror, check the condition of the O-rings and replace, if necessary, check the thermal paste on the heaters and replace if necessary.
  • Page 191 6. Temp, pressure, RH sensor 7. Light source screws 8. Light source assembly 9. Exposed optical cell 6.4.9.3 PMT Assembly Cleaning The following procedure focus specifically on the PMT assembly and assumes you have already completed the procedures in the section 6.4.9.1 and 6.4.9.2, removing and cleaning the optical cell. 1.

  • Page 192: Figure 201 - Light Trap Mirror Cleaning

    Au ro ra NE Se ri es Use r M anu al 1 .3 1. Be very careful not to touch the mirror surface. 2. Inspect the light trap mirror surface using a very bright torch (e.g., LED type), and viewing it from various angles.

  • Page 193: Figure 202 - Sample Manifold Cleaning

    Figure 202 – Sample Manifold Cleaning 6.4.9.8 Optical Cell Reassembly The following procedure focus specifically on the optical cell reassembly and assumes you have already completed the procedures in the section 6.4.9.1 and 6.4.9.2, removing and cleaning the optical cell. Figure 203 –...
  • Page 194 Au ro ra NE Se ri es Use r M anu al 1 .3 4. Replace the tube casing (light trap end) by sliding it back over the baffles taking care not to damage the paint. Refer to Figure 203 for the orientation of the casing (sample exhaust side closest to the block).

  • Page 195: Figure 204 - Replacing The Sample Manifold Assembly

    Figure 204 – Replacing the Sample Manifold Assembly 3. Slide the optical cell and sample manifold back and to the right until the two brackets align. Using a long M4 screwdriver, tighten the captive screws on the cell bracket two at the front and two at the back, all accessed from the front.

  • Page 196: Leak Check

    Au ro ra NE Se ri es Use r M anu al 1 .3 6. Re-insert the sample inlet tube. Figure 206 – Replacing Sample Inlet Tube 7. Connect the tubing to the following points on the optical cell and the sample manifold. Figure 207 –...

  • Page 197: Figure 208 - Location Of Leak Check Start Button

    6.4.10.1 Method “A” – Automated Leak Check. This leak test is automated and will record the results in the configuration files. 1. Some preparation is required, before commencing the automated leak check, disconnect anything connected to the sample inlet, the vent, and the span gas ports. 2.

  • Page 198: Figure 210 - Leak Check Pass

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 210 – Leak Check Pass 11. When the test is complete Disconnect the two black 1/2" rubber caps and re-connect the sample inlet and Span Gas line. 12.

  • Page 199: Zero Noise Test

    Parameters panel), set the Period to 1 minute and make sure all the Kalman sigma channels are being logged. 5. Allow the Aurora NE Series to continue running on zero air for a minimum period of 12 hours, uninterrupted. Service...

  • Page 200: Light Source Test And Adjustment

    Au ro ra NE Se ri es Use r M anu al 1 .3 6. When the 12 hours are complete, download all the zero data to a PC either via ACOEM Airodis software or insert the SD card into the PC.

  • Page 201: Figure 212 - Ne-100 Lightsource Configuration Panel

    6.4.12.1 NE-100 Light Source Test Figure 212 – NE-100 Lightsource Configuration Panel Note: The Aurora NE-100 light source has three wavelengths. Only one wavelength can be tested at a time. Choose only the wavelength that you are measuring with. 1. Navigate to the Config –> Factory page. In the Lightsource Configuration panel Confirm that the Model is 100.

  • Page 202: Figure 213 - Example Of Ne-100 Wavelength Selection

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 213 – Example of NE-100 Wavelength Selection 10. Confirm that your desired wavelength is selected. Figure 213 shows 525 nm as the most common selection. If you need to change the wavelength, press the desired wavelength radio button and Accept.

  • Page 203: Figure 214 - Ne-300 Lightsource Configuration Panel

    17. When the adjustments have been completed, navigate to the Home page –> Cal page –> Calibration Settings panel, and set the Source to Sample. 6.4.12.2 NE-300 Light Source Test Figure 214 – NE-300 Lightsource Configuration Panel 1. Navigate to the Config –> Factory page. In the Lightsource Configuration panel Confirm that the Model is 300.

  • Page 204: Figure 215 - Example Of Ne-300 Wavelength Selection

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 215 – Example of NE-300 Wavelength Selection 11. Confirm that your desired wavelength is selected. Figure 215 shows all three wavelengths enabled which is the most common selection for a NE-300. 12.

  • Page 205: Figure 216 - Ne-400 Lightsource Configuration Panel

    6.4.12.3 NE-400 Light Source Test Figure 216 – NE-400 Lightsource Configuration Panel 1. Navigate to the Config –> Factory page. In the Lightsource Configuration panel Confirm that the Model is 300. 2. Confirm that the listed Wavelengths are 635 nm, 525 nm & 450 nm in that order. 3.

  • Page 206: Figure 217 - Example Of Ne-400 Wavelength Selection

    Au ro ra NE Se ri es Use r M anu al 1 .3 Figure 217 – Example of NE-400 Wavelength Selection 12. Confirm that your desired wavelength is selected. Figure 217 shows all three wavelengths enabled which is the most common selection for a NE-400. 13.

  • Page 207: Full Calibration And Precision Checks

    6.4.13 Full Calibration and Precision Checks Normally when all maintenance procedures have been completed, the instrument will require a Full Calibration. This information is covered in Sections 5 and 5.5. 6.4.14 Clock Battery Replacement Over the life of the instrument at some point, the backup battery may need to be replaced. The frequency will depend on how the instrument is used.

  • Page 208: Figure 219 - Location Of Battery Holder

    Au ro ra NE Se ri es Use r M anu al 1 .3 6.4.14.2 Clock Battery Removal 1. Before removing the battery, some preparation is required. Using some clear packing tape, cut a square size section of the tape and place it to one side sticky side up. 2.

  • Page 209: Firmware Upgrading

    9. Switch on power to the instrument and check that the time and date are still correct. 6.5 Firmware Upgrading Firmware upgrades provide access to new features as they are developed by Acoem. Upgrading the firmware is a simple process.

  • Page 210: Prepare The Usb Memory Stick

    /FIRMWARE. Reinsert the USB memory stick and wait until the images panel list shows the contents of the USB memory stick. Note: Contact ACOEM for the latest firmware release for the Aurora NE Series. The same Firmeware file can be used for each instrument type.

  • Page 211: Load The Firmware

    Make sure you have made backup copies of your configuration files before you do this. Contact Acoem technical support for assistance if required. Service Page 211...

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  • Page 213: Troubleshooting

    7. Troubleshooting Before troubleshooting any specific issues, Acoem Australasia recommends ensuring the instrument has successfully completed its warm-up routine. The Instrument status panel in the Config – Status page, contains a list of possible errors and their current status. Pass (Green) or Fail (red). If a parameter is failing, press and hold the status and a popup dialog box will open displaying additional information.

  • Page 214: Lightsource

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.1 Lightsource When the Lightsource error appears, the action to take will depend on the instrument type. 7.1.1 NE-100 Lightsource * Lightsource Test and Adjustment Section 6.4.12. Page 214...

  • Page 215: Lightsource

    7.1.2 NE-300 Lightsource * Lightsource Test and Adjustment Section 6.4.12. Troubleshooting Page 215...

  • Page 216: Lightsource

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.1.3 NE-400 Lightsource * Lightsource Test and Adjustment Section 6.4.12. Page 216...

  • Page 217: Backscatter

    7.2 Backscatter *Lightsource Cleaning Section 6.4.9.5 **Light Trap Cleaning Section 6.4.9.6 Troubleshooting Page 217...

  • Page 218: Reference Shutter

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.3 Reference Shutter *Lightsource Test and Adjustment Section 6.4.12 ** Reference Shutter Cleaning Section 6.4.9.4 Page 218...

  • Page 219: Measure Count

    7.4 Measure Count * Reference Shutter troubleshooting Section 7.3 ** Measurement Cell Cleaning Section 6.4.8 Troubleshooting Page 219...

  • Page 220: Dark Count

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.5 Dark Count Page 220...

  • Page 221: Pmt

    7.6 PMT Troubleshooting Page 221...

  • Page 222: Flow

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.7 Flow * Flow Calibration Section 5.4.1 ** Leak Check Section 6.4.10.1 Page 222...

  • Page 223: Sample Temperature

    7.8 Sample Temperature Troubleshooting Page 223...

  • Page 224: Chassis Temperature

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.9 Chassis Temperature Page 224...

  • Page 225: Hardware Clock

    7.10 Hardware Clock Troubleshooting Page 225...

  • Page 226: Noisy / Unstable Readings

    Au ro ra NE Se ri es Use r M anu al 1 .3 7.11 Noisy / Unstable Readings *Refer to Section 6.4 for Maintenance Procedures. Page 226...

  • Page 227: Optional Extras

    Mass Flow Controller, MFC control PCA, cabling, and an external pump. Note: At the time of writing this manual, this option is still under development and is not available for sale yet. Contact ACOEM for Further updates. 8.2 External Pump 240 VAC (PN: P030004)

  • Page 228: External Pump 110 Vac (Pn: P030005)

    20 LPM. Note: At the time of writing this manual, this option is still under development and is not available for sale yet. Contact ACOEM for Further updates. 8.4 Wall Mount Bracket (PN: E010112, E010113) The wall mounting bracket option is used to mount the Aurora NE to a flat vertical surface with a purpose-made bracket that allows the Aurora NE to be quickly installed or uninstalled on a wall.

  • Page 229: Roof Flange (Pn: E010130)

    8.5 Roof Flange (PN: E010130) The roof flange kit allows weatherproof sealing of a roof penetration and allows a 1/2" tube to be passed through for sampling from the external ambient environment. Silicone sealant is required to seal the flange to the outside roof so that no rain can leak in. Refer to section 2.2.3. Figure 225 –...

  • Page 230: 1/2" Inlet Tubing Extension (Pn: H020320, H020321, H020322 , H020323)

    8.7 1/2" Inlet Tubing Extension (PN: H020320, H020321, H020322 , H020323) This option has various lengths of 1/2" anodized aluminium tube that can be used to connect the sample inlet of the Aurora NE to the Rain Cap and Screen that is mounted outside the monitoring station.

  • Page 231: Pm 2.5 Inlet (3 Lpm) (Pn: H020450)

    8.9 PM Inlet (3 LPM) (PN: H020450) The PM Inlet assembly is designed to selectively remove particles larger than the nominal size of 2.5um from the sample at the designed flow rate of 3 LPM. The Inlet is designed to adapt to the 1/2” sample tube extensions and includes the Rain Cap Inlet and Screen (E010131).

  • Page 232: External Pump Controller Kit (Pn: E010115)

    Note: At the time of writing this manual, the MFC option is still under development and is not available for sale yet. Contact ACOEM for Further updates. 8.11 Maintenance Kit (PN: E010120) This maintenance kit is required when performing routine maintenance on the instrument. Depending on the environment, instrument condition and maintenance schedule, not all items in this option may be used for each scheduled service.

  • Page 233: Wide Bandwidth Pmt (Pn: E010200)

    635nm wavelength. 8.15 Ambient Temp & RH Sensor (PN: E010111) Note: At the time of writing this manual, this option is still under development and is not available for sale yet. Contact ACOEM for Further updates. Optional Extras Page 233...

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  • Page 235: Parts List And Schematics

    This maintenance kit is required when performing routine maintenance on the instrument. Depending on the environment that the instrument is operating, this maintenance may need to be carried out more often than mentioned in Section 6.3. Table 24 – Aurora NE Series Annual Maintenance Kit - (PN: E010120) Part Description Part Number...

  • Page 236: Instrument Parts List

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.3 Instrument Parts List List of Aurora NE Series components and part numbers for reference. Note: Before referring to the spare part number confirm the part number and its location in the attached drawings.

  • Page 237: Table 28 - Spare Parts List (Cables/Heaters/Coolers/Sensors)

    Part Description Part Number Pump Filter 95% (0.1 Micron) F010005 Table 28 – Spare Parts List (Cables/Heaters/Coolers/Sensors) Part Description Part Number Light Source Cable C020163 Front Door Cable C020164 Power Switch Cable C020165 Sample Manifold Block Heater Assembly C020171 Dual Cell Heater Assembly C020170 Cooler Thermistor Assembly Spare Part (NE-300 &...

  • Page 238: Table 31 - Spare Parts List (Misc.)

    Au ro ra NE Se ri es Use r M anu al 1 .3 Part Description Part Number Black Nylon Elbow Fitting F030003 1/2" Tube for Sample or Vent Inlet H020627 1/4" Brass Stub to 1/8" NPT Adapter 28590402-1 1/4" Brass Swagelok Nut 28800400-1 1/4"...
  • Page 239 Part Description Part Number Light Source Fan Assembly 12 V (25 mm x 25 mm) H050031 Quartz Window 859-073900 M3 x 6 mm Nylon Thumb Screw F050036 Cell Mounting Bracket (Cell side) H020672 Shutter & Baffle Assembly H020700 3/8" OD, 1/4" ID Silicone Grommet H030079 Light Trap Mirror Assembly H040010...

  • Page 240: Plumbing Schematic General - (Pn: D020081)

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.4 Plumbing Schematic General - (PN: D020081) Page 240...

  • Page 241: Plumbing Schematic Sample Path - (Pn: D020081)

    9.5 Plumbing Schematic Sample Path - (PN: D020081) Parts List and Schematics Page 241...

  • Page 242: Plumbing Schematic Zero Path - (Pn: D020081)

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.6 Plumbing Schematic Zero Path - (PN: D020081) Page 242...

  • Page 243: Plumbing Schematic Span Path - (Pn: D020081)

    9.7 Plumbing Schematic Span Path - (PN: D020081) Parts List and Schematics Page 243...

  • Page 244: Block Wiring Schematic - (Pn: D020150)

    9.8 Block Wiring Schematic - (PN: D020150) Page 244...

  • Page 245: Cell Exploded View - (Pn: H020670)

    9.9 Cell Exploded View – (PN: H020670) Parts List and Schematics Page 245...

  • Page 246: Light Source Assembly (Ne-400, Ne-300) - (Pn: H020660)

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.10 Light Source Assembly (NE-400, NE-300) – (PN: H020660) Page 246...

  • Page 247: Light Source Assembly (Ne-100) - (Pn: H020660-01)

    9.11 Light Source Assembly (NE-100) – (PN: H020660-01) Parts List and Schematics Page 247...

  • Page 248: Sample Ball Valve Assembly - (Pn: H020625)

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.12 Sample Ball Valve Assembly – (PN: H020625) Page 248...

  • Page 249: Vent Ball Valve Assembly - (Pn: H020620)

    9.13 Vent Ball Valve Assembly – (PN: H020620) Parts List and Schematics Page 249...

  • Page 250: Span & Zero Solenoid Valve Assembly - (Pn: H020630)

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.14 Span & Zero Solenoid Valve Assembly – (PN: H020630) Page 250...

  • Page 251: Solenoid Span Valve 2 Way - (Pn: 45000177)

    9.15 Solenoid Span Valve 2 way – (PN: 45000177) Parts List and Schematics Page 251...

  • Page 252: Solenoid Zero Valve 3 Way - (Pn: H020464)

    Au ro ra NE Se ri es Use r M anu al 1 .3 9.16 Solenoid Zero Valve 3 Way – (PN: H020464) Page 252...

  • Page 253: Internal Sample Pump Assembly - (Pn: H020635)

    9.17 Internal Sample Pump Assembly – (PN: H020635) Parts List and Schematics Page 253...

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    This page is intentionally blank. Page 254...

  • Page 255: Table 32 - Acoem Protocol Packet Format

    Maximum message length is 4,000 bytes instead of 255  Checksum is calculated across the entire message, excluding only the checksum and EOT bytes  Commands are reordered and many legacy commands are no longer supported Table 32 – Acoem Protocol Packet Format Byte 5..6 7..10 Number...

  • Page 256: Table 33 - Example: Acoem Protocol Primary Gas Request

    Au ro ra NE Se ri es Use r M anu al 1 .3 Table 33 – Example: Acoem Protocol Primary Gas Request Byte Number Description Value Checksum 02=2 Serial ID 20=2 Command Message length MSB Message length LSB Parameter ID MSB...

  • Page 257: Table 35 - List Of Commands

    List of Commands Table 35 – List of Commands Cmd# Name Description Error Error message from the instrument Get Instrument Type Returns the model and options for an analyser. Get Version Returns the instrument firmware version. Reset Restarts the analyser Returns the current value of various analyser Get Values parameters.

  • Page 258: Table 38 - Example: Error Response

    Au ro ra NE Se ri es Use r M anu al 1 .3 Err # Description Invalid command byte Invalid parameter Invalid message length Reserved Reserved Reserved Reserved Media not connected Media busy Table 38 – Example: Error Response Byte Number Description Value...

  • Page 259: Table 39 - Format: Get Instrument Type Command

    Table 39 – Format: Get Instrument Type Command Byte Number Description Value Serial ID varies Command Message length MSB Message length LSB Checksum varies A.3.2.2 Response The response is 4 integers: Model, Variant, Sub-Type, and Range. Table 40 – Format: Get Instrument Type Response Byte Number Description Value...

  • Page 260: Table 41 - Aurora Instrument Types

    Au ro ra NE Se ri es Use r M anu al 1 .3 Byte Number Description Value Range MSB-1 Range MSB-2 Range LSB Checksum varies Table 41 – Aurora Instrument Types Serinus Value Model Variant Sub-type Range Table 42 – Serinus Instrument Types Serinus Value Model...

  • Page 261: Table 43 - Format: Get Version Command

    A.3.3 Get Version (2) This command requests the current firmware version running on the analyser. Additional Differences from Advanced Protocol Command  The Advanced Protocol command responded with major, minor, and revision numbers. A.3.3.1 Command The message field must be empty. The response is a 4-byte unsigned integer Build number and an 4- byte integer Branch number.

  • Page 262: Table 45 - Format: Reset Command

    Au ro ra NE Se ri es Use r M anu al 1 .3 Byte Number Description Value Branch MSB-2 Branch MSB Checksum varies A.3.4 Reset (3) This command forces the analyser to do a full restart. The message field must contain the exact string “Really”...

  • Page 263: Table 46 - Format: Get Values (X Values)

    Differences from Advanced Protocol command The Advanced Protocol command sent id/value pairs instead of just values A.3.5.1 Command The message field contains the 4-byte indexes of the requested parameter, as described in the List of Parameters (hence the message length must be at least 4). Up to 500 indexes can be sent in a single message (a maximum message length of 2,000).

  • Page 264: Table 48 - Example: Get Values Request

    Au ro ra NE Se ri es Use r M anu al 1 .3 Parameter Value MSB-2 Parameter Value LSB … Repeat X times … … Checksum varies … Example This command requests parameter 1 twice (purely for demonstration), which is the current time and date on any instruments.

  • Page 265: Set Values

    Byte Number Description Value Checksum Message length LSB Parameter 1 Value MSB Parameter 1 Value MSB-1 Parameter 1 Value MSB-2 Parameter 1 Value LSB Parameter 2 Value MSB Parameter 2 Value MSB-1 Parameter 2 Value MSB-2 Parameter 2 Value LSB Checksum A.3.6 Set Values (5) This command sets the value of an instrument parameter.

  • Page 266: Table 51 - Format: Get Logging Config Response

    Au ro ra NE Se ri es Use r M anu al 1 .3 Byte Number Description Value Message length MSB Message length LSB Checksum varies A.3.7.2 Response Table 51 – Format: Get Logging Config Response Byte Number Description Value Serial ID varies Command...

  • Page 267: Table 52 - Format: Get Logged Data Initial Request

     Header information and data are sent as separate records A.3.8.1 Command For the initial command, the message length is 8, with the first four bytes being the start date and the last the end date. Both times are in the Time Stamp format (see below). After that there are three different forms of the command to get the next data, repeat the last block, or cancel the download;...

  • Page 268: Table 54 - Get Logged Data Commands

    Au ro ra NE Se ri es Use r M anu al 1 .3 Byte Number Description Value Serial ID varies Command Message length MSB Message length LSB Command MSB Command MSB-1 Command MSB-2 Command LSB varies Checksum varies Table 54 – Get Logged Data Commands Err # Description Next packet...

  • Page 269: Table 56 - Example: Get Logged Data Next Record Request

    Byte Number Description Value Checksum Start Timestamp MSB-1 Start Timestamp MSB-2 Start Timestamp LSB End Timestamp MSB End Timestamp MSB-1 End Timestamp MSB-2 End Timestamp LSB Checksum Table 56 – Example: Get Logged Data Next Record Request Byte Number Description Value Checksum 02=2...

  • Page 270: Table 57 - Format: Get Logged Data Response

    Au ro ra NE Se ri es Use r M anu al 1 .3 fields; parameter IDs are integers; parameter Values are IEEE floating point numbers, signed integers, or unsigned integers as specified by the List of Parameters. The message length of the packet is the total byte count for the entirety of the message payload (including the field count and record count/operation/reserved bytes/timestamp/period).

  • Page 271: Table 58 - Format: Get Logged Data Response (No More Records)

    Byte Number Description Value Message length MSB Message length LSB varies Record 1 Record Type (0 or 1) Record 1 Instrument Operation Record 1 Reserved for future expansion Record 1 Reserved for future expansion Record 1 Timestamp MSB Record 1 Timestamp MSB-1 Record 1 Timestamp MSB-2 Record 1 Timestamp LSB Record 1 Logging Period MSB...

  • Page 272: Table 59 - Example: Get Logged Data Response

    Au ro ra NE Se ri es Use r M anu al 1 .3 Byte Number Description Value Message length MSB Message length LSB Checksum varies A response of 2 records with 2 parameters, might look like this: Table 59 – Example: Get Logged Data Response Byte sequence Description 002 000 007...

  • Page 273: Table 60 - Aurora Data Types

    Byte sequence Description 063 140 204 The floating-point value of the first parameter 064 012 204 The floating-point value of the second parameter Record type –000 for data. This is the start of the second data record. Instrument Operation. This value is the same as CURRENT_OPERATION. Reserved for future expansion.

  • Page 274: Table 61 - Aurora Base Ids For Constructed Parameters

    Au ro ra NE Se ri es Use r M anu al 1 .3 The current list of parameters follows. Note that this list may be added to, particularly for troubleshooting and diagnostics. Constructed Parameters The Aurora has a vast array of measurement parameters. Rather than list every single possible ID, a formula is used to calculate the ID for measurement parameters.

  • Page 275: Table 62 - Aurora Parameters

    Base ID Description Data type Notes Dark count Float Measure count in mHz during dark period Dark count raw Unsigned Raw photon count during dark period Shutter count Float Measure count in mHz during shutter period Shutter count raw Unsigned Raw photon count during shutter period Temperature Float...
  • Page 276 Au ro ra NE Se ri es Use r M anu al 1 .3 1005 UNIT_SELECTION_HUMIDITY 0 = % 1006 DECIMAL_SELECTION_READINGS 0..6 = decimal places 7 = scientific notation 1007 DECIMAL_SELECTION_TEMPERATURE 1008 DECIMAL_SELECTION_FLOW 1009 DECIMAL_SELECTION_PRESSURE 1010 DECIMAL_SELECTION_HUMIDITY 2000 USER_CONFIG_DATALOG 2001 DATALOG_PARAM_INTERVAL 0 = disabled (no datalogging) 1 = every measurement...
  • Page 277 2021 DATALOG_PARAM_INDEX_18 2022 DATALOG_PARAM_INDEX_19 2023 DATALOG_PARAM_INDEX_20 2024 DATALOG_PARAM_INDEX_21 2025 DATALOG_PARAM_INDEX_22 2026 DATALOG_PARAM_INDEX_23 2027 DATALOG_PARAM_INDEX_24 2028 DATALOG_PARAM_INDEX_25 2029 DATALOG_PARAM_INDEX_26 2030 DATALOG_PARAM_INDEX_27 2031 DATALOG_PARAM_INDEX_28 2032 DATALOG_PARAM_INDEX_29 2033 DATALOG_PARAM_INDEX_30 2034 DATALOG_PARAM_INDEX_31 2035 DATALOG_PARAM_INDEX_32 2036 DATALOG_PARAM_WAVELENGTH_INDEXES 2037 DATALOG_PARAM_WAVELENGTH_INDEX_1 Each logging parameter may represent several logged values. 2038 DATALOG_PARAM_WAVELENGTH_INDEX_2 0 = all currently defined wavelengths...
  • Page 278 Au ro ra NE Se ri es Use r M anu al 1 .3 2057 DATALOG_PARAM_WAVELENGTH_INDEX_21 2058 DATALOG_PARAM_WAVELENGTH_INDEX_22 2059 DATALOG_PARAM_WAVELENGTH_INDEX_23 2060 DATALOG_PARAM_WAVELENGTH_INDEX_24 2061 DATALOG_PARAM_WAVELENGTH_INDEX_25 2062 DATALOG_PARAM_WAVELENGTH_INDEX_26 2063 DATALOG_PARAM_WAVELENGTH_INDEX_27 2064 DATALOG_PARAM_WAVELENGTH_INDEX_28 2065 DATALOG_PARAM_WAVELENGTH_INDEX_29 2066 DATALOG_PARAM_WAVELENGTH_INDEX_30 2067 DATALOG_PARAM_WAVELENGTH_INDEX_31 2068 DATALOG_PARAM_WAVELENGTH_INDEX_32 2069 DATALOG_PARAM_ANGLE_INDEXES 2070 DATALOG_PARAM_ANGLE_INDEX_1 Each logging parameter may represent...
  • Page 279 2093 DATALOG_PARAM_ANGLE_INDEX_24 2094 DATALOG_PARAM_ANGLE_INDEX_25 2095 DATALOG_PARAM_ANGLE_INDEX_26 2096 DATALOG_PARAM_ANGLE_INDEX_27 2097 DATALOG_PARAM_ANGLE_INDEX_28 2098 DATALOG_PARAM_ANGLE_INDEX_29 2099 DATALOG_PARAM_ANGLE_INDEX_30 2100 DATALOG_PARAM_ANGLE_INDEX_31 2101 DATALOG_PARAM_ANGLE_INDEX_32 2200 DATALOG_MEDIA The current media for capturing the data 0 = SD Card 1 = USB Flash drive 2201 DATALOG_LAST_DOWNLOAD Aurora Legacy Datalogging only 3000 USER_CONFIG_COMMS 3001...
  • Page 280 Au ro ra NE Se ri es Use r M anu al 1 .3 4005 MEASUREMENT_WAVELENGTH_2 4006 MEASUREMENT_WAVELENGTH_3 4007 MEASUREMENT_ANGLES 4008 MEASUREMENT_ANGLE_1 Angle value in degrees (0..90) The 1100 only reports one angle (always 4009 MEASUREMENT_ANGLE_2 4010 MEASUREMENT_ANGLE_3 The 3100 reports two angles (always 0 and 90) called forescatter and 4011 MEASUREMENT_ANGLE_4...
  • Page 281 4035 CURRENT_OPERATION The operating state of the instrument. These stats flag logged data as part of normal measurement or a calibration state. 0 = Normal monitoring data 1 = Zero calibration data 2 = Span calibration data These states only appear when a calibration state is completed.

  • Page 282: Time Stamp Format

    Au ro ra NE Se ri es Use r M anu al 1 .3 6010 ANALOG_INPUT_ANALOG_FLOW 6011 ANALOG_INPUT_MFC_FLOW SLPM 6012 ANALOG_INPUT_AMBIENT_RH 6013 ANALOG_INPUT_AMBIENT_TEMP 6014 ANALOG_INPUT_SPARE 6015 ANALOG_INPUT_1 6016 ANALOG_INPUT_2 6017 ANALOG_INPUT_3 6018 ANALOG_INPUT_4 7001 DIGITAL_INPUT_1 0..1 7002 DIGITAL_INPUT_2 0..1 7003 DIGITAL_INPUT_3 0..1 7004...
  • Page 283 Appendices Page 283...
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  • Page 285: Appendix B. Aurora Protocol

    Appendix B. Aurora Protocol This document contains an explanation of the available commands and their syntax. Note: The commands are case sensitive and need to be uppercase for them to work correctly. Command: ID Polls the Aurora NE for the instrument type, the current software/firmware version and the unique factory allocated identification number of the Aurora NE.

  • Page 286: Command: ***D

    Au ro ra NE Se ri es Use r M anu al 1 .3 Command: ***D Downloads the new content of the data log. The number of responses will depend on how many entries are in the data log that have not yet been downloaded. Syntax: ***D<CR>...

  • Page 287: Command: **B

    Example: Sending: **0PS_123456<CR> Responce: OK<CR><LF> (and sets the instrument serial ID to 123456.) Command: **B Re-Boot test. When initiated the Watchdog timer will be activated and cause the Aurora 4000 microprocessor to re-boot. The same as pressing the reset button on the microprocessor board. Syntax: **{<Serial ID>}B<CR>...

  • Page 288: Table 63 - Vi Voltage Input Numbers

    Au ro ra NE Se ri es Use r M anu al 1 .3 Table 63 – VI voltage input numbers Voltage input number Description Current Monitoring State (Major.Minor) 2 decimal places for minor. Scat coefficients. Mm-1 in current reporting preference Dark count (moving average).
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This manual is also suitable for:

Aurora ne-100Aurora ne-300Aurora ne-400

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