Ecotech Serinus 44 User Manual
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Ecotech Serinus 44 User Manual

Ammonia & oxides of nitrogen analyser
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Serinus 44
Ammonia & Oxides
of Nitrogen Analyser
User Manual
Version: 3.0
www.ecotech.com

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  • Page 1 Serinus 44 Ammonia & Oxides of Nitrogen Analyser User Manual Version: 3.0 www.ecotech.com...
  • Page 2 Serinus 44 User Manual 3.0 This page is intentionally blank Page 2...

  • Page 3: Table Of Contents

    Service & Repairs ................................12 CE Mark Declaration of Conformity ..........................13 Claims for Damaged Shipments and Shipping Discrepancies ..................14 Internationally Recognised Symbols on Ecotech Equipment ................... 15 Manual Revision History ..............................16 Introduction ............................ 17 Description ................................17 Specifications ..............................
  • Page 4 Serinus 44 User Manual 3.0 2.3.1 Pneumatic Connections ........................34 2.3.2 Power Connections ..........................35 2.3.3 Communications Connections ......................36 2.3.4 Instrument Set-Up ..........................36 Transporting/Storage ............................37 Operation ............................39 Warm-Up ................................39 Measurement ..............................39 General Operational Information ........................40 3.3.1...
  • Page 5 4.3.3 Setup Airodis to Communicate with Serinus ..................69 Digital/Analog Communication ........................... 70 4.4.1 Analog Outputs ............................ 70 4.4.2 Analog Inputs ............................71 4.4.3 Digital Status Inputs ..........................72 4.4.4 Digital Status Outputs .......................... 72 Logging Data ................................ 73 4.5.1 Configure Instrument Internal Logging ....................
  • Page 6 Serinus 44 User Manual 3.0 Maintenance Procedures ..........................116 6.3.1 Particulate Filter Replacement ......................116 6.3.2 Clean Fan Filter ..........................116 6.3.3 DFU Replacement ..........................117 6.3.4 Scrubber Replacement ....................... 117 6.3.5 Leak Check............................118 6.3.6 Replacing the PMT Desiccant Pack ....................119 6.3.7...
  • Page 7 Figure 2 – NH Calculation ........................23 Figure 3 – Internal Components Diagram ....................24 Figure 4 – Ecotech Tygon Tubing ......................27 Figure 5 – Opening the Instrument ......................31 Figure 6 – Example Setup for S44 Monitoring System ................33 Figure 7 –...
  • Page 8 Serinus 44 User Manual 3.0 Figure 43 – Logs Format ........................89 Figure 44 – Colour Theme Settings......................90 Figure 45 – Example of a Calibration System ..................91 Figure 46 – Setting the Ambient Set Point .................... 95 Figure 47 – Multipoint Calibration Results Example ................101 Figure 48 –...
  • Page 9 Table 7 – Troubleshoot List ......................... 129 Table 8 – Serinus Accessories Kit – (H010136) ..................147 Table 9 – Serinus 44 Maintenance Kit – (E020206) ................147 Table 10 – Serinus 44 Consumables ..................... 148 Table 11 – Spare Parts List Serinus 44 ....................149 Table 12 –...

  • Page 10: Manufacturer's Statement

    Serinus 44 Ammonia & Oxides of Nitrogen Analyser. This manual is valid for the most recent version of the Serinus 44 which includes the new Autoranging Power Supply, Main Controller PCA and Rear Panel PCA.

  • Page 11: Safety Requirements

    To reduce the risk of personal injury caused by electrical shock, follow all safety notices and warnings in this documentation. If the equipment is used for purposes not specified by Ecotech, the protection provided by this equipment may be impaired.

  • Page 12: Service & Repairs

    Please dial +61 3 9730 7800 if calling from outside of Australia Please contact Ecotech and obtain a Return Material Authorisation (RMA) number before sending any equipment back to the factory. This allows us to track and schedule service work and to expedite customer service.

  • Page 13: Ce Mark Declaration Of Conformity

    This declaration applies to the Serinus 44 Ammonia & Oxides of Nitrogen Analyser as manufactured by Ecotech Pty Ltd of 1492 Ferntree Gully Rd, Knoxfield, VIC, Australia 3180. The instrument to which this declaration relates is in conformity with the following European Union Directives:...

  • Page 14: Claims For Damaged Shipments And Shipping Discrepancies

    Check all packages against the packing list immediately on receipt. If a shortage or other discrepancy is found, notify the carrier and Ecotech immediately. Ecotech will not be responsible for shortages against the packing list unless they are reported within seven days.

  • Page 15: Internationally Recognised Symbols On Ecotech Equipment

    Internationally Recognised Symbols on Ecotech Equipment Protective conductor terminal IEC 60417-5017 Alternating current IEC 60417-5032 Caution, hot surface IEC 60417-5041 Caution, risk of danger. Refer to accompanying ISO 7000-0434 documents Caution, risk of electric shock ISO 3864-5036 Introduction Page 15...

  • Page 16: Manual Revision History

    User Manual for the Serinus 44 Ammonia & Oxides of Nitrogen Analyser This manual is the full user manual for the Serinus 44 Ammonia & Oxides of Nitrogen Analyser. This manual contains all relevant information on theory, specifications, installation, operation, maintenance and calibration.

  • Page 17: Introduction

    1. Introduction 1.1 Description The Ecotech Serinus 44 NO/NO uses Gas Phase Chemiluminescence Detection to perform continuous analysis of nitric oxide (NO), total oxides of nitrogen (NO ), nitrogen dioxide ) ammonia (NH ) and total oxides of nitrogen + ammonia (N This section will describe the specifications of the instrument as well as the main components and techniques used to obtain stable gas concentration readings.

  • Page 18: Power

    Serinus 44 User Manual 3.0 7 days: < 1.0% of reading 1.2.3 Power  Operating voltage 100-240VAC, 50 to 60 Hz (Autoranging)  Power Consumption 265 VA max (typical at start-up) 190 VA after warm-up 1.2.4 Operating Conditions Ambient Temperature Range 0 °C to 40 °C (32 °F to 104 °F)

  • Page 19: Physical Dimensions

    1.2.6 Physical Dimensions Case Dimensions Rack length (front to rear): 597 mm (23.5”) Total length (with latch release): 638 mm (25.1”) Chassis width: 418 mm (16.5”) Front panel width: 429 mm (16.9”) Chassis height: 163 mm/Uses 4RU (6.4”) Front panel height: 175 mm (6.9”) Weight: 23.6 kg...
  • Page 20 Serinus 44 User Manual 3.0 Zero Drift: The changes in instrument response to zero pollutant concentration over time. Zero Air: Is purified air in which the concentration of NO is <0.5 ppb and NO is <0.5 ppb with water vapour of less than 10% RH.

  • Page 21: Background/Theory

    1.4 Background/Theory Oxides of Nitrogen (NO ) are the product of endothermic reactions within combustion engines and cause significant environmental pollution. The main source of NO emissions is from hydrocarbon combustion such as automobile engines or the burning of coal for power production. These pollutants are harmful to humans and create ozone gas (O ) and acid rain.

  • Page 22: Equation 2 - No

    Serinus 44 User Manual 3.0 Note: The chemiluminescence reaction is between O and NO only; not NO or NH Photons are emitted by the activated NO  This reaction releases energy in the form of chemiluminescent radiation, which is filtered by the optical Bandpass filter and detected by the photomultiplier tube (PMT).

  • Page 23: Kalman Filter Theory

    Figure 2 – NH Calculation 1.4.2 Kalman Filter Theory The digital Kalman filter provides an ideal compromise between response time and noise reduction for the type of signal and noise present in ambient air instruments. The Kalman filter enhances measurements by modifying the filter time base variable, depending on the change rate of the measured value.

  • Page 24: Instrument Description

    Serinus 44 User Manual 3.0 1.5 Instrument Description The major components of the Serinus 44 are described below: Figure 3 – Internal Components Diagram 1.5.1 Calibration Valve Manifold The calibration valve manifold switches between sample, calibration and background gas. 1.5.2...

  • Page 25: Nh 3 Scrubbers

    1.5.4 Scrubbers Scrubbers are placed in the measurement paths to remove any NH before measurement of the NO (or converted NO), as NH may interfere with the reaction in the NO to NO converter and reaction cell. The scrubber is filled with granular phosphoric acid which reacts with the ammonia to form ammonium salts which are left behind in the scrubber as the other gases pass through unaffected.

  • Page 26: External Nh 3 Converter (Thermal Oxidiser)

    NO and NO . The converter efficiency is normally between 88-94% at a temperature of 680°C. The HTO 1000N is connected to the Serinus 44 instrument through the Auxiliary ports, on the rear of the instrument (refer to Section 2.3.1). For more information on the HTO 1000N refer to the HTO 1000 manual.

  • Page 27: Pneumatic Tubing

    1.5.13 Pneumatic Tubing The pneumatic tubing inside this instrument is specially designed for use in Ecotech Serinus instruments. It has the flexibility of Tygon tubing with the added inner sheath of Teflon to prevent contamination of the sample. Care should be taken when removing and inserting the tubing into the barbed fittings.
  • Page 28 Serinus 44 User Manual 3.0 RS232 #1 This port is designed to be used for simple RS232 communication. RS232 #2 This port is designed to be used for simple RS232 communication or in multidrop configuration. This port can be used for instrument communications with equipment through a standard USB port.
  • Page 29 Digital Status Outputs The instrument is equipped with eight open collector outputs, which will convey instrument status conditions and warning alarms such as no flow, sample mode, etc. CAUTION Exceeding 12VDC or drawing greater than 400mA on a single output or a total greater than 2A across the eight outputs can permanently damage the instrument and void the warranty.
  • Page 30 Serinus 44 User Manual 3.0 This page is intentionally blank Page 30...

  • Page 31: Installation

    2.1 Initial Check Packaging The Serinus 44 is transported in packaging which is specifically designed to minimise the effects of shock and vibration during transportation. Ecotech recommends that the packaging be kept if there is a likelihood that the instrument is going to be relocated.

  • Page 32: Installation Notes

    Serinus 44 User Manual 3.0 Items Received With the delivery of the Serinus 44, the user should have received the following:  Ecotech Serinus 44 analyser PN: E020044  Green Ecotech Resources USB Stick PN: H030137-01  End Caps PN: B010002 ...

  • Page 33: Figure 6 - Example Setup For S44 Monitoring System

     A new ammonia monitoring system will require a long time for all of the sample and calibration lines to become properly conditioned. Ecotech recommends the first time a system is installed to run NH gas through the system for several hours to properly condition the lines.

  • Page 34: Instrument Set-Up

    2.3.1 Pneumatic Connections The Serinus 44 has six pneumatic ports on the back panel of the instrument: the Sample Port, the Calibration Port, the Exhaust Port, the Auxiliary In port, the Auxiliary Out Port and the Background Air Port. All tubing and fittings used should follow the instructions below: ...

  • Page 35: Power Connections

    The exhaust port should be connected to the vacuum pump using ¼” OD tubing. The P030004 240V vacuum pump (P030005 110V) available from Ecotech, should be used to provide the required vacuum and flow for one Serinus 44 analyser.

  • Page 36: Communications Connections

    Communications Connections There are a number of ways to communicate with the instrument. Use the supplied Airodis software to access the instrument and download data. The Airodis software is supplied on the green Ecotech resources USB stick provided with this instrument.

  • Page 37: Transporting/Storage

    8. Perform a pressure sensor check (refer to Section 6.3.9). 9. Perform a leak check (refer to Section 6.3.5). 10. Leave the instrument to warm-up and stabilise for two-three hours. 11. Ensure the sample lines have been properly conditioned by sampling NH calibration gas for several hours prior to calibration.

  • Page 38: Figure 8 - Installation Of Usb Memory Key

    Serinus 44 User Manual 3.0 Figure 8 – Installation of USB Memory Key Figure 9 – Switching the Battery On/Off Page 38...

  • Page 39: Operation

    After this warm-up has completed the instrument will immediately begin making measurements (refer to Section 3.2). 3.2 Measurement The Serinus 44 NO Analyser is a five channel monitoring instrument that measures sample air through three different flow paths. These three paths are used to measure NO, NO and N .

  • Page 40: General Operational Information

    Serinus 44 User Manual 3.0 Instrument State Duration (seconds) Description NO Sample Meas NO sample is measured Sample Fill Cell fills with NO sample Sample Meas sample is measured Sample Fill Cell fills with N sample Sample Meas sample is measured 3.3 General Operational Information...
  • Page 41 In the few cases where letters can be entered, the number keys act like a telephone keypad. Every time a number key is pressed, it cycles through its choices. The up/down arrow keys scroll through all the numbers and the entire alphabet. 1 = 1 or space 2 = 2, A, B, C, a, b, c 3 = 3, D, E, F, d, e, f...

  • Page 42: Home Screen

    Serinus 44 User Manual 3.0 3.3.2 Home Screen The home screen is composed of seven parts: readings (1), error/status line (2), instrument activity line (3), selection buttons (4), time/date (5), concentration units (6) and USB status (7). Figure 11 – Home Screen Readings (1) Displays the concentration being measured in real-time.

  • Page 43: Menus & Screens

    Time and Date (5) The time and date are displayed in between the menu buttons at the bottom of the screen. Concentration Units (6) The instrument units are displayed in the bottom right hand corner of the display. USB Detection (7) A USB symbol will be displayed in the bottom right corner when the USB memory stick is plugged in (the USB socket is behind the front panel).

  • Page 44: Main Menu

    Serinus 44 User Manual 3.0 Safely Remove USB Stick Always select this menu item before removing the USB memory stick or select the same menu item from the Service Menu (refer to Section 3.4.12). Failure to do this may cause corruption of the memory stick.

  • Page 45: Status Menu

    power was disconnected from the instrument. 3.4.4 Status Menu Main Menu  Analyser State Menu  Status Menu Status Menu presents a list of the current Pass/Fail statuses of the main components. During warm-up, the status of some parameters will be a dashed line. Event Log This field enters a screen with a log of all the events that the instrument has performed.

  • Page 46: Temperature Menu

    Serinus 44 User Manual 3.0 Bkgnd Conc V Saturated Indicates if the voltage of the concentration during background measurement is within the limits of the analog to digital converter (-0.26 to 3.29V). Flow Fault Ok when the instrument has acceptable sample flow based on the difference between cell and ambient pressures.

  • Page 47: Voltage Menu

    3.4.7 Voltage Menu Main Menu  Analyser State Menu  Voltage Menu High Voltage The voltage applied to the PMT (normally set to 650 volts ±15V for ambient applications). Conc Voltage (RAW) Voltage from the sensor proportional to the detected signal from the reaction cell.

  • Page 48: Measurement Settings Menu

    Serinus 44 User Manual 3.0 3.4.9 Measurement Settings Menu Main Menu  Measurement Settings Menu Average Period Set the time period over which the average will be calculated: Minutes (1, 3, 5, 10, 15 or 30) or hours (1, 4, 8, 12 or 24).
  • Page 49 port or from the internal zero source when zero gas is requested. Cycle Time The duration of each Cal. Mode (span and zero) when performing Cycle Mode (refer to Section 3.4.10.1) or Cal. Type is set to Timed (refer to Section 3.4.10.2).

  • Page 50: Pressure Calibration Menu

    Serinus 44 User Manual 3.0 mode is set in Cycle Time (refer to Section 3.4.10). While the instrument is still in the warm-up period (refer to Section 3.1) the Cal. Mode cannot be changed from Measure mode. 3.4.10.2 Timed Mode...

  • Page 51: Service Menu

    3.4.12 Service Menu Main Menu  Service Menu Diagnostics Menu Refer to Section 3.4.13. Calculation Factors Menu Refer to Section 3.4.19. Ozone Gen. Control Allows the user to switch off the ozone generator or let the instrument automatically control the status of the ozone generator. For safety reasons, the ozone generator will not be active if there is a flow fault.

  • Page 52: Digital Pots Menu

    Serinus 44 User Manual 3.0 3.4.14 Digital Pots Menu Main Menu  Service Menu  Diagnostics Menu  Digital Pots Menu Digital pots are electronically controlled digital potentiometers used for adjustments to operations of the instrument. Each of the digital pots can go from 0-255. This menu should be accessed only during diagnostics.

  • Page 53: Valve Menu

    Preamp or Optic Diagnostic Mode, this Digital Pot should be adjusted from 0 to 255. This will produce a change in the concentration voltage as well as the indicated gas concentration. 3.4.15 Valve Menu Main Menu  Service Menu  Diagnostics Menu  Valve Menu Valve Menu allows the user to observe the instrument controlled switching of the valves.

  • Page 54: Tests Menu

    Serinus 44 User Manual 3.0 flow path to the reaction cell or bypasses out the Exhaust Port. On = Flow from C to NC (NOx flow path to Reaction Cell). Off = Flow from C to NO (NOx flow path bypassed to Exhaust Port).

  • Page 55: Calculation Factors Menu

    3.4.19 Calculation Factors Menu Main Menu  Service Menu  Calculation Factors Menu The calculation factors provide the values used to calculate different aspects of measurement and calibration. Dilution Ratio Entering a value here will multiply the displayed and recorded measurements by the dilution amount.

  • Page 56: Communications Menu

    Serinus 44 User Manual 3.0 25 samples. This is a microprocessor-generated field and cannot be set by the user. This reading is only valid if zero air or a steady concentration of span gas has been supplied to the instrument for at least one hour.

  • Page 57: Analog Input Menu

    14400, 19200, 38400 or 115200). Protocol Sets the protocol used for this serial port (Advanced, ModBus, EC9800 or Bayern-Hessen). This must be set to Advanced for Ecotech supplied software. Endian Select Little or Big endian mode for ModBus protocol. [Modbus protocol] 3.4.23...

  • Page 58: Analog Output Menu

    Serinus 44 User Manual 3.0 3.4.24 Analog Output Menu Main Menu  Communications Menu  Analog Output Menu Output Mode The analog output can be set to be either Current or Voltage. Different fields will be displayed depending on which analog output type is selected.

  • Page 59: Digital Input Menu

    3.4.24.2 Analog Output Menu - Current Main Menu  Communications Menu  Analog Output Menu These items appear when Output Mode is set to Current. Current Range Enables the user to set desired current ranges. The user’s choices are 0-20mA, 2-20mA or 4-20mA. 4mA Calibration Enables the user to calibrate the current output at a low point.

  • Page 60: Digital Output Menu

    Serinus 44 User Manual 3.0 5. The same procedure can be followed to also activate zero calibrations. Pin 6 of the instrument’s analog/digital 25 pin female connector can be connected to one of the other master devices digital outputs and the instrument can be set so...

  • Page 61: Network Menu

    [DHCP mode] Protocol Sets the protocol used for the network port (Advanced, ModBus, EC9800 or Bayern-Hessen). This must be set to Advanced for Ecotech supplied software. Endian Select Little or Big endian mode for ModBus protocol. [Protocol Modbus] To read the IP address, perform the following steps: 1.

  • Page 62: Bluetooth Menu

    The default ID setting is Serinus(Ecotech ID). The word Serinus is always the first part of the name and cannot be edited. The second part is the Ecotech ID. This is a passcode/pin required for the Serinus Remote Application to connect to the instrument. The default pin is 1234.

  • Page 63: Hardware Menu

    CAUTION No items in this menu should be accessed without authorization and supervision of qualified service personnel. 3.4.30 Hardware Menu Advanced Menu  Hardware Menu This menu contains factory hardware installations. If you reset to factory defaults you may need to revisit this menu to re-install optional features.
  • Page 64 Serinus 44 User Manual 3.0 This page is intentionally blank Page 64...

  • Page 65: Communications

    USB, 25 pin digital/analog input/output, TCP/IP network (optional) and Bluetooth). A demonstration version of Ecotech’s Airodis software is included with the instrument, enabling basic data downloads and remote operation from a PC running MS Windows (7 or 8). The full version of Airodis is available separately and includes automated data collection, data validation and complex reporting by multiple users.

  • Page 66: Usb Communication

    Figure 13 – Multidrop RS232 Cable Example 4.2 USB Communication This is ideal for irregular connection to a laptop running Ecotech’s Airodis software to download logged data and remotely control the instrument. Due to the nature of USB, this is a less reliable permanent connection as external electrical noise can cause USB disconnection errors on a data logger.

  • Page 67: Tcp/Ip Network Communication (Optional)

    4.3 TCP/IP Network Communication (optional) Instruments with the optional network port installed can be accessed using a TCP/IP connection. Figure 14 shows examples of some possible configurations for remote access. Figure 14 – Example of Typical Network Setups Communications Page 67...

  • Page 68: Network Setup

    Serinus 44 User Manual 3.0 Note: In Figure 14 all the IP addresses are taken as an example. The WAN IP addresses are normally provided by your ISP. Whereas, the LAN IP addresses can be set manually to any range which is within the subnet of the Modem/Router/switch.

  • Page 69: Setup Airodis To Communicate With Serinus

    The default port for the Serinus range of instruments is 32783. The destination address is the instrument IP address setup in the Network Menu. Figure 16 – Port Forwarding Example 4.3.3 Setup Airodis to Communicate with Serinus Below is an example of Airodis setup for a LAN network. Ensure the IP address is set to the same as on the instrument Network Menu.

  • Page 70: Digital/Analog Communication

    Serinus 44 User Manual 3.0 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. Figure 18 – WAN Network Set-Up (Airodis) 4.4 Digital/Analog Communication The 25 Pin analog/digital port on the rear of the instrument sends and receives analog/digital signals to other devices.

  • Page 71: Analog Inputs

    Analyser Output 1 Output 2 Output 3 Serinus Cal 3000 4.4.1.1 Analog Outputs Voltage Calibration Equipment Required  Multimeter (set to volts)  Male 25 pin connector with cable Procedure 1. Open - Main Menu  Communications Menu  Analog Output Menu (refer to Section 3.4.24). 2.

  • Page 72: Digital Status Inputs

    Serinus 44 User Manual 3.0 4.4.3 Digital Status Inputs The instrument is equipped with eight logic level inputs for the external control of the instrument such as Zero or Span sequences. Each input has a terminating resistor which can be either PULL UP or PULL DOWN.

  • Page 73: Logging Data

    Figure 20 – External 25 Pin I/O Individual Pin Descriptions CAUTION The analog and digital inputs and outputs are rated to CAT I. Exceeding 12VDC or drawing greater than 400mA on a single output or a total greater than 2A across the eight outputs can permanently damage the instrument and void the warranty.

  • Page 74: Using Airodis Software To Download Data

    Serinus 44 User Manual 3.0 3. Select - Data Log Setup –Numeric (select the parameter numbers you wish to log) or Select - Data Log Setup –Text (select the names of the parameters you wish to log). 4.6 Using Airodis Software to Download Data 4.6.1...

  • Page 75: Figure 22 - Update Driver Popup

    Figure 22 – Update Driver Popup The Serinus USB driver is located on the green Ecotech resources USB stick under “\Drivers\Ecotech Analyser”. Select this directory and click Next. Figure 23 – Update Driver Popup (Directory Location) If you receive a confirmation prompt to install the driver, select Install.

  • Page 76: Figure 24 - Installing Driver Confirmation Prompt

    Serinus 44 User Manual 3.0 Figure 24 – Installing Driver Confirmation Prompt If everything went smoothly, Windows will inform you that the driver was successfully installed. Figure 25 – Successful Driver Installation 4.6.1.2 Connecting Over Serial (RS-232) The following steps outline how to setup the instrument for connection to a PC or datalogger (refer to Section 3.4.22).

  • Page 77: Installing Airodis

    The user can download data from the instrument using either a full retail (paid) version of Airodis or with the demo version which is included on the green Ecotech resources USB stick. The demo version has limited functionality, but will allow you to download and export data from up to three instruments.

  • Page 78: Figure 26 - Airodis Workspace Manager

    2. Start the Client, Server and Download Server by single-clicking the toggle button for each. The client may prompt to register with Ecotech or install an update. Follow the prompts if it does. 3. Once the Client application has loaded, click HomeAdd StationNew Physical Station.

  • Page 79: Figure 28 - New Station Connection

    The name of the station. If you have other loggers, the name is used to distinguish them. Logger Set this to “Ecotech Serinus” when downloading from any Serinus series instrument. This will communicate with the instrument via the Advanced protocol. If using a network or serial connection, ensure that the Advanced protocol has also been selected on the instrument itself.

  • Page 80: Figure 29 - Station Configuration (Channel List)

    Serinus 44 User Manual 3.0 6. Click Acquire Configuration. This will probe the instrument for a channel list. After a few seconds, the channel list should be visible in the Channels tab. Figure 29 – Station Configuration (Channel List) Note: If there was an error connecting to the instrument, a red dot will appear next to the station name in the station list (on the far left hand side).

  • Page 81: Figure 31 - Downloading Data

    Figure 31 – Downloading Data 8. The status of the download will appear in the bottom-left corner of the window. You can also monitor the status of the download from the Home tab. Figure 32 – Download Data Status 9. Data will become available in the data manager as it is downloaded. You can load data for a date range by entering the start and end dates and clicking Display.

  • Page 82: Figure 33 - Data Visibility

    Serinus 44 User Manual 3.0 Figure 33 – Data Visibility 10. Data can be exported by clicking the Export function. This will allow you to save your data in CSV format, which can be loaded into another program such as Microsoft Excel. It is also possible to copy/paste (Ctrl + C / Ctrl + V) data directly from the Airodis data manager.

  • Page 83: Serinus Remote App/Bluetooth

    The following sections cover installation, connection and use of the application. 4.7.1 Installation The Serinus Remote Application can be found in the Google Play Store by searching for Ecotech or Serinus. Once found, choose to Install the application and Open to start the application. Communications...

  • Page 84: Connecting To The Instrument

    Serinus 44 User Manual 3.0 Figure 36 – Downloading the App from Google Play Store Note: A menu containing additional features and functions can be accessed by entering the Options Menu (or similar) on your device. The location and format of this menu may vary.

  • Page 85: Instrument Control

    A screen shot of the instrument’s current screen should appear on your Smartphone or tablet. To disconnect press the back key/button on the device. Note: Once the instrument has been paired with the device it will appear under “Paired Devices” and the PIN will not need to be entered again.

  • Page 86: Real-Time Plot

    Serinus 44 User Manual 3.0 Figure 39 – Switching Analysers Back Button This button will enable the user to return to the selection screen, allowing connection to a different instrument. Options Menu The Options Menu is accessed by the grey button in the top right corner of the screen or pressing the Menu Button, depending on your Android device.

  • Page 87: Download

    Figure 40 – Real-Time Plot Options Menu The Options Menu is accessed by the grey button in the top right corner of the screen or pressing the menu button, depending on the Android device. Start Restarts graphing if it has been stopped and returns the graph to Normal Mode. Stop Stops collecting data.

  • Page 88: Get Parameters

    Serinus 44 User Manual 3.0 include the parameter headings, just the values. Send E-Mail Sends an email with the parameter data in the body of the email, formatted as displayed (this includes the parameter name and the values). Plot Graphs the data that has been downloaded. The user is prompted to select which parameters to plot based on the parameters that were being logged (refer to Figure 35).

  • Page 89: Preferences

    4.7.7 Preferences The Preferences Menu allows the operator to adjust the directory settings, logged data format and the colour scheme settings. It can be accessed through the Options Menu in most windows. Directory Settings The operator can specify/select where to save the parameter lists, logged data and real time plots. Figure 42 –...

  • Page 90: Figure 44 - Colour Theme Settings

    Serinus 44 User Manual 3.0 Colour Theme Settings Allows the user to choose a colour scheme for the remote screen either Matrix, Classic, Emacs or Custom. Figure 44 – Colour Theme Settings Page 90...

  • Page 91: Calibration

    5. Calibration The following sections describe how to calibrate the span and zero points of the instrument as well as giving a brief overview of the calibration system. Main Menu  Calibration Menu (refer to Section 3.4.10). 5.1 Overview Figure 45 – Example of a Calibration System CAUTION All calibration gases must be supplied at ambient pressure to avoid damaging the instrument.
  • Page 92  Description of the NH converter efficiency checks procedure. The Serinus 44 analyser is a precision measuring device which must be calibrated against a known source of NO & NH (e.g. a certified gas cylinder). There are several different types of checks/calibrations performed: ...

  • Page 93: Pressure Calibration

    Regulations generally require that the instrument be span calibrated against a certified calibration source any time:  The instrument is moved.  The instrument is serviced.  The instrument’s units are changed by the user between volumetric and gravimetric.  Whenever the instrument characteristics may have changed.

  • Page 94: Ambient Point Pressure Calibration

    Serinus 44 User Manual 3.0 Note: This action will place the valve sequencing on hold and disable the ozone generator; normal sampling will be interrupted. 3. Edit - Vacuum Set Pt. - (Read displayed instructions) - OK. 4. Connect a vacuum source to Exhaust Port (refer to Figure 7) of instrument.

  • Page 95: Zero Calibration

    A large offset may indicate a problem with the instrument (refer to Section 7). Note: Ecotech encourages regular zero precision checks; however Ecotech recommends that the zero calibration only be performed when specifically required as it may mask issues that should be addressed during maintenance/service.

  • Page 96: Sample Port

    Serinus 44 User Manual 3.0 Procedure 1. Ensure a suitable zero source is connected to the Calibration port. 2. Open - Main Menu  Calibration Menu. 3. Select - Cal. Type  Manual - Accept. 4. Select - Zero Source  External - Accept.

  • Page 97: Span Calibration

    5.4 Span Calibration A span calibration is a calibration performed at the upper end of the instrument’s measurement range. Ecotech recommends calibration at 80% of the full scale measurement or operating range of the instrument. While the instrument range is commonly set as a default 0-500ppb, this is widely recognised as no longer being valid with modern digital communication and most regulators will now recommend a range more suited to local conditions.

  • Page 98: Sample Port

    Serinus 44 User Manual 3.0 Procedure 1. Ensure a suitable span source is connected to the Calibration Port. 2. If diluting the gas with a dilution calibrator, set the output concentration to 80% of the instrument measurement range. 3. Open - Main Menu  Calibration Menu.

  • Page 99: Precision Check

    At times it may be desirable to manually adjust the instrument’s gain and offsets. Typically this option is only used when an instrument calibration has been corrupted and the user wishes to reset the instrument response factors prior to performing a new calibration. To manually adjust the instrument follow the below procedure: 1.

  • Page 100: Multipoint Precision Check

    NO at an appropriate concentration (typically a cylinder of 40 to 100 ppm NO, balance in Nitrogen). 1. Connect your calibration system to the Calibration Port of the instrument (Ecotech recommends the Serinus Cal 2000, refer to Figure 45).

  • Page 101: To No Converter Efficiency

    Multipoint Linearity Check (NO gas) Zero flow Span flow Calculated Expected Measured Measured Measured Measured Measured Cal. Point (sccm) (sccm) NOx (ppb) NOx (ppb) Zero 3000 0.00 0.00 20% FS 3000 5.00 100.0 99.6 99.8 100.2 40% FS 3000 10.00 199.0 198.0 198.6...

  • Page 102: Equation 4 - Calculation For No

    Serinus 44 User Manual 3.0 Main Menu  Service Menu  Calculation The NO converter efficiency value displayed in the Factors menu only applies to the NO path converter coil, the efficiency of the second coil for the N channel is encompassed in the NH converter efficiency value.

  • Page 103: Single Point No 2 To No Converter Efficiency Check

    5.7.1 Single Point NO to NO Converter Efficiency Check This procedure is a simple check to ensure the NO converter efficiency for the both the NO path and the N path are within limits and have not significantly deteriorated. Equipment Required ...

  • Page 104: Multipoint No 2 To No Converter Efficiency Adjustment

    Serinus 44 User Manual 3.0 Main Menu  Calibration 14. Open - Menu. 15. Edit - Conv. Efficiency NO2 - (change back to original efficiency) - Accept. 16. Edit - Conv. Efficiency NH3 - (change back to original efficiency) - Accept.

  • Page 105: Nh 3 Converter Efficiency

    9. Allow the instrument to achieve a prolonged, stable measurement response and note down the NO, NO and N values. Label them as [NO] , [NO and [N – NO] (after the user FINAL FINAL FINAL performs the calculation of N –...

  • Page 106: Multipoint Nh 3 Converter Efficiency Adjustment

    Serinus 44 User Manual 3.0 Procedure 1. Open - Main Menu  Calibration Menu. 2. Note down the current value for Conv. Efficiency NH3. 3. Edit - Conv. Efficiency NH3 - (change to 100%) - Accept. 4. Supply the instrument with a known concentration of NH span gas at roughly 80% of the full- scale monitoring range of the particular instrument.
  • Page 107 7. Allow the instrument to achieve a prolonged, stable measurement response and note down the reading as shown on the instrument. Label this measurement as [NH MEASURED 8. Use the noted measurements to calculate the converter efficiency using Equation 6. 9.

  • Page 108: High Pressure Zero/Span Valve (Option)

    Serinus 44 User Manual 3.0 5.9 High Pressure Zero/Span Valve (Option) If the instrument was ordered with this option, the internal pressurised calibration valves will already be installed within the instrument as either a zero or span calibration source, thus no other internal connections need to be made.
  • Page 109 Note: This connection may need to be retightened during this operation. 3. Open the cylinder main valve and adjust the regulator to 15 psig. 4. Open the regulator’s shutoff valve and test for leaks: a. Pressurise the line. b. Close the cylinder main valve. c.

  • Page 110: Dual Pressurised Calibration Option

    Serinus 44 User Manual 3.0 5.9.2 Dual Pressurised Calibration Option Set-Up of Dual Calibration Option Figure 49 – Dual High Pressure Calibration Option When using the dual pressurised calibration option, a high pressure zero cylinder should be connected to the Pressure in Port and a high pressure span cylinder connected to the Calibration Port.
  • Page 111 a. Pressurise the line. b. Close the cylinder main valve. c. If pressure drops by more than 2 PSI over five minutes, check the connections and retest. d. Open cylinder main valve. 5. Temporarily place a flow meter on the Vent Port (This port is now used as the high pressure calibration vent for both span and zero).
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  • Page 113: Service

    6. Service 6.1 Maintenance Tools To perform general maintenance on the Serinus 44 you may require the following equipment:  Customizable Test Equipment Case PN: H070301  Digital Multimeter & Leads (DMM) PN: E031081 & E031082  Barometer PN: E031080 ...

  • Page 114: Maintenance And Calibration Schedule

    6.2 Maintenance and Calibration Schedule The maintenance intervals are determined by compliance standards that differ in various regions. The following is recommended by Ecotech as a guide. Compliance with local regulatory or international standards is the responsibility of the user.
  • Page 115 Monthly Perform precision check (pre-check) prior to commencing any service tasks or making any changes to the system as found in its current state. This task is necessary to validate any previously captured data. Check particulate filter, replace if full/dirty 6.3.1 Perform a pressure check 6.3.9...

  • Page 116: Maintenance Procedures

    Serinus 44 User Manual 3.0 6.3 Maintenance Procedures 6.3.1 Particulate Filter Replacement Contamination of the filters can result in degraded performance of the instrument, including slow response time, erroneous readings, temperature drift, and various other problems. 1. Turn off the external pump and allow the analyser to return to ambient.

  • Page 117: Dfu Replacement

    Figure 55 – Removing the Fan Filter 6.3.3 DFU Replacement Equipment Required  5/8” Spanner Procedure 1. Turn off the external pump and allow the analyser to return to ambient. 2. Loosen the Kynar nuts from both ends of the DFU. 3.

  • Page 118: Leak Check

    Serinus 44 User Manual 3.0 Figure 57 – NH3 Scrubber 6.3.5 Leak Check Equipment Required  Source of Vacuum (pump)  Leak Test Jig (PN: H050069)  Kynar ¼” Blocker Nuts  Tubing and Assorted Fittings  5/8” Spanner ...

  • Page 119: Replacing The Pmt Desiccant Pack

    13. Inspect the instrument’s plumbing looking for obvious damage. Check the condition of fittings, particulate filter housing plus the O rings both in the filter assembly and in the cell assembly. 14. If the leak is still present divide up the pneumatic system into discrete sections to locate the leak (refer to Section 9.5).

  • Page 120: Cleaning The Reaction Cell

    Serinus 44 User Manual 3.0 Figure 58 – Removing the Desiccant Pack 3. Remove the old desiccant packs and replace with new ones. Do not attempt to dry and reuse the old packs. 4. Inspect the inside of the PMT housing (by touch or with an inspection mirror) to check for moisture inside the housing.

  • Page 121: Figure 59 - Remove Reaction Cell

     Oven or Heat Gun  Spare Parts or Annual Maintenance Kit Procedure 1. Prepare and cut three pieces of black electrical tape approximately 5cm in length and layer them approximately 3cm wide. Keep these near your work area as we will use this immediately to protect the PMT as the reaction cell is being removed.

  • Page 122: Clean Pneumatics

    Serinus 44 User Manual 3.0 Figure 60 – Optical Filter Removal and Cleaning 7. Clean the filter with a lint free tissue with distilled water if further cleaning is required use high purity isopropyl alcohol. 8. Dismantle the reaction cell and clean all the stainless steel parts with high purity isopropyl alcohol.

  • Page 123: Figure 61 - Test Point Location

    Procedure Main Menu  Analyser State Menu  Pressure & Flow 1. Open - Menu. 2. Turn off the vacuum pump and allow the analyser to return to ambient. 3. Disconnect all external tubing connected to the rear ports of the instrument except for the AUX in Port and AUX Out Port (for the external converter).

  • Page 124: Ozone Generator Maintenance

    Figure 63 – Typical Test Point Reading of Manifold Pressure Sensor 6.3.10 Ozone Generator Maintenance Ozone production in the Serinus 44 is achieved via a corona discharge method. Ambient air is drawn through a DFU and a Nafion dryer into the ozone generator. High levels (≈6,000ppm) of ozone are produced.

  • Page 125: Figure 64 - Remove Ozone Generator From Instrument

    Figure 64 – Remove Ozone Generator from Instrument 4. Inspect the Tygon tubing and replace if damaged or contaminated. 5. The Ozone generator PCA needs to be removed from the metal housing to get access underneath. Disconnect the power connector and undo 4 Phillips screws from the underside of the mounting.

  • Page 126: Bootloader

    Serinus 44 User Manual 3.0 Figure 65 – Cleaning of Glass Tube 6. With the PCA now free locate the white Teflon block fastening screws and disassemble glass tube (refer to Section 9.7). 7. Clean or replace the glass tube and replace the Teflon gaskets.

  • Page 127: Display Help Screen

    2 key from the Bootloader screen. 6.4.3 Updating Firmware It is important for optimal performance of the instrument that the latest firmware is loaded. The latest firmware can be obtained by visiting Ecotech’s website: http://www.ecotech.com/downloads/firmware Or by emailing Ecotech at service@ecotech.com support@ecotech.com...
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  • Page 129: Troubleshooting

    7. Troubleshooting Table 7 – Troubleshoot List Error Message/Problem Cause Solution Flow fault Multiple possibilities Refer to Section 7.1. Noisy/unstable readings Multiple possibilities Refer to Section 7.2. Calibration system error Ensure calibration system is functioning correctly and is leak free. Ensure sufficient gas is available for instrument and an adequate vent is available for excess gas.
  • Page 130 Serinus 44 User Manual 3.0 Error Message/Problem Cause Solution Error Message/Problem Cause Solution Flow block temp failure Faulty heater or Refer to Section 7.4. temperature sensor Reaction cell temp failure Faulty heater or Refer to Section 7.5. temperature sensor Instrument resetting Multiple possibilities 1.
  • Page 131 Error Message/Problem Cause Solution Low span Leaks A leak in the instrument or calibration system dilutes the sample stream and causes low span readings and noise. Span calibration out Adjust the span using the calibration procedure. No response to span gas Leaks/blockages Leaks or blockages in tubes or valves.

  • Page 132: Flow Fault

    Serinus 44 User Manual 3.0 7.1 Flow Fault Figure 66 – Zero Flow Fault Troubleshooting Flow Chart ** Section 2.3.1 *** Section 5.2 Page 132...

  • Page 133: Noisy/Unstable Readings

    7.2 Noisy/Unstable Readings Figure 67 – Noisy or Unstable Readings Troubleshooting Flow Chart ** Section 6.3.5 *** Section 5.2 Troubleshooting Page 133...

  • Page 134: Converter Temperature Failure

    Serinus 44 User Manual 3.0 7.3 Converter Temperature Failure Figure 68 – Converter Alarm Troubleshooting Flow Chart Page 134...

  • Page 135: Flow Block Temperature Failure

    7.4 Flow Block Temperature Failure Figure 69 – Valve Manifold Temperature Alarm Troubleshooting Flowchart Troubleshooting Page 135...

  • Page 136: Reaction Cell Temperature Failure

    Serinus 44 User Manual 3.0 7.5 Reaction Cell Temperature Failure Figure 70 – Reaction Cell Temperature Failure Troubleshooting Flow Chart Page 136...

  • Page 137: Usb Memory Stick Failure

    7.6 USB Memory Stick Failure Figure 71 – USB Memory Stick Failure Troubleshooting Page 137...

  • Page 138: Ecotech Service Support Files

    Regular backup of the settings, parameters and data on the instruments USB memory stick is recommended. In the event of a fault that requires Ecotech technical support, please make copies of the following files and email to: support@ecotech.com Equipment Required ...

  • Page 139: Figure 72 - Usb Memory Stick File Structure

    Figure 72 – USB Memory Stick File Structure 10. Insert the USB memory stick into your PC/Laptop computer and access the files. 11. Best practice is to email all the on the USB memory stick but if it’s to large just send: 12.
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  • Page 141: Optional Extras

    8. Optional Extras 8.1 Rack Mount Kit (PN E020116) The rack mount kit is necessary for installing the Serinus into a 19” rack (the Serinus is 4RU in height). Included Items Rack Slide Set H010112 Rack Mount Adaptors H010133 Rack Mount Ears H010134 Spacers HAR-8700...

  • Page 142: Figure 74 - Assemble Inner Slide On Chassis

    Serinus 44 User Manual 3.0 Figure 74 – Assemble Inner Slide on Chassis 4. Install rack mount ears on the front of the instrument using two M4 x 10 screws on each side (refer to Figure 75). Figure 75 – Rack Mount Ears Fitted to Instrument 5.

  • Page 143: Figure 76 - Attach Rack Mount Adaptors To Outer Slides

    Figure 76 – Attach Rack Mount Adaptors to Outer Slides 6. Test fit the rack slide into your rack to determine the spacing of the rack mount adaptors. Figure 77 – Test Fit the Rack Slide Assembly Into Your Rack 7.

  • Page 144: Figure 78 - Attach Slides To Front Of Rack

    Serinus 44 User Manual 3.0 Figure 78 – Attach Slides to Front of Rack 8. Now carefully insert the instrument into the rack by fitting the instrument slides into the mounted rails. Ensuring that the rack slide locks engage on each side.

  • Page 145: High Pressure Zero/Span Valves

    Figure 79 – Slide Clips 8.2 High Pressure Zero/Span Valves High pressure span calibration valve (factory installed (PN E020108)) High pressure zero calibration valve (factory installed (PN E020109)) For more information on how to setup and use the high pressure valves refer to Section 5.9. Note: Before using a high pressure span or zero as a source for calibrating the instrument, please check your local regulatory requirements.
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  • Page 147: Parts List And Schematics

    This maintenance kit is required when performing annual maintenance on the instrument. Depending on the environment that the instrument is operating, this maintenance may need to be carried out more often than yearly. Table 9 – Serinus 44 Maintenance Kit – (E020206) Serinus 44 Maintenance Kit: E020206 Part Number...

  • Page 148: Consumables

    TUBING, TYGON, 1/4 X 1/8 CLEAR T010011 9.3 Consumables Parts shown as consumables below will require replacement over the course of the instrument’s lifespan. Table 10 – Serinus 44 Consumables Consumable Part Number Filter paper Teflon 47MM pack of 50 F010006-01...

  • Page 149: Instrument Parts List

    Subject to use refers to variable ambient conditions, toxic gases, dirt, extremes of temperature and moisture ingress may shorten the lifespan of components. 9.4 Instrument Parts List List of Serinus 44 components and part numbers for reference. Table 11 – Spare Parts List Serinus 44 Part Description...

  • Page 150: Plumbing Schematic - (D020018)

    Serinus 44 User Manual 3.0 9.5 Plumbing Schematic – (D020018) Page 150...

  • Page 151: Block Wiring Schematic - (D020104)

    9.6 Block Wiring Schematic – (D020104) Parts List and Schematics Page 151...

  • Page 152: Ozone Generator Assembly - (H011107)

    Serinus 44 User Manual 3.0 9.7 Ozone Generator Assembly – (H011107) Page 152...

  • Page 153: Optical Bench Assembly - (H011200)

    9.8 Optical Bench Assembly – (H011200) Parts List and Schematics Page 153...

  • Page 154: Manifold Block Assembly - (H011302)

    Serinus 44 User Manual 3.0 9.9 Manifold Block Assembly – (H011302) Page 154...

  • Page 155: Calibration Manifold Assembly- (H010013-01)

    9.10 Calibration Manifold Assembly– (H010013-01) Parts List and Schematics Page 155...

  • Page 156: Valve Assembly - (H010042)

    Serinus 44 User Manual 3.0 9.11 Valve Assembly – (H010042) Page 156...

  • Page 157: Table 12 - Advanced Protocol Parameter List

    Appendix A. Advanced Protocol Parameter List Note: Parameters are for all Serinus series analysers and may not be applicable to an individual instrument. Table 12 – Advanced Protocol Parameter List Description Notes Cal/Zero Valve 0=Zero, 1=Cal Internal Span Valve 0=Closed, 1=Open Spare Valve 1 0=Closed, 1=Open Spare Valve 2...
  • Page 158 Serinus 44 User Manual 3.0 Analog input 5 Cell pressure Analog input 6 Ambient pressure Analog input 7 Raw ADC calibration input Analog input 8 MFC1 Not used Analog input 9 Concentration data Analog input 10 MFC2 Not used Analog input 11...
  • Page 159 Gas 1 Offset A offset applied to Gas 1 Gas 3 Offset A offset applied to Gas 3 Flow Temperature Temperature of the flow block Lamp Current Lamp current in mA E.g. 35mA Digital Supply Digital Supply voltage (should always read close to 5 volts) Conc.
  • Page 160 Serinus 44 User Manual 3.0 Cal. Pressure Calibration Pressure Conv. Efficiency Converter Efficiency Multidrop Baud Rate Analog Range Gas 1 Analog Range Gas 2 Analog Range Gas 3 Output Type Gas 1 Output Type Gas 1 1=Voltage 0=Current Output Type Gas 2...
  • Page 161 CO Lin. Factor C CO Linearisation Factor C CO Lin. Factor D CO Linearisation Factor D CO Lin. Factor E CO Linearisation Factor E Instrument Units 0= PPM 1=PPB 2=PPT ³ 3=mG/M ³ 4=µG/M ³ 5=nG/M Backgnd Meas. Time In seconds Sample Fill Time Sample Measure Time Aux Measure Time...
  • Page 162 Serinus 44 User Manual 3.0 Reserved Reserved Cycle Time In minutes CO Cooler Pot CO Cooler voltage adjustment POT CO Source Pot CO Source voltage adjustment POT CO Test Meas. Pot Diagnostics use only CO Test Ref. Pot Diagnostics use only...
  • Page 163 Averaging Period 0 = " 1 Min", 1 = " 3 Mins", 2 = " 5 Mins", 3 = "10 Mins", 4 = "15 Mins", 5 = "30 Mins", 6 = " 1 Hr", 7 = " 4 Hrs", 8 = " 8 Hrs", 9 = "...
  • Page 164 Serinus 44 User Manual 3.0 Gas3 Over Range The Upper Concentration Range when Over-Ranging is enabled for Analog Output 3 Gas1 Over-Ranging 0 = Over Ranging Disabled 1 = Over Ranging Enabled (Gas1) Gas2 Over-Ranging 0 = Over Ranging Disabled...
  • Page 165 Ext Analog Input 2 Ext Analog Input 3 H2S Conv Set Point Converter Set Point Cal. Pressure 3 Calibration Pressure 3 PTF Correction (gas 3) Pressure Temperature Flow Compensation Factor for third gas in multigas instruments. Dilution Ratio The current dilution ratio (default is 1.0) Traffic Light State of the status light: 0 = Green...
  • Page 166 Serinus 44 User Manual 3.0 Appendix B. EC9800 Protocol The following commands are supported. DCONC Function: Sends the current instantaneous concentration data to the serial port. Format: DCONC,{<DEVICE I.D.>}{TERMINATOR} Device response: {GAS}<SPACE>{STATUS WORD}<CR><LF> All numbers are in floating point format. The STATUS WORD indicates the instrument status in hex...
  • Page 167 RESET Function: Reboots the instrument (software reset). Format: RESET, {<DEVICE I.D.>}{TERMINATOR} Device response: <ACK> Parts List and Schematics Page 167...

  • Page 168: Table 13 - Bayern-Hassen Data

    Serinus 44 User Manual 3.0 Appendix C. Bayern-Hassen Protocol All Bayern-Hassen Network commands follow the command format as specified in this section. Bayern-Hassen Network Command Format <STX><text><ETX>< bcc1><bcc2> Where: <STX> = ASCII Start of Transmission = 0x02 hex <Text> = ASCII text maximum length of 120 characters <ETX>...

  • Page 169: Table 14 - Block Check Operation

    This is an example of a valid command to put the unit in the manual span mode if the instrument has an ID of 843: <STX>ST843 K<ETX>52 The block check operation is best shown with the following table: Table 14 – Block Check Operation Character Hex Value Binary...

  • Page 170: Table 16 - Bit Map

    Serinus 44 User Manual 3.0 <STX>{DA}<ETX>< bcc1><bcc2> Where: kkk = Device’s Serial ID bcc1 = First byte of the block check calculation bcc2 = Second byte of the block check calculation Device response (S10, S30 and S50 family) <STX>{MD}{01}<SP><kkk><SP><+nnnn+ee><SP><ss><SP><ff><{000}><SP>{00000000} <SP><ETC>< bcc1><bcc2>...

  • Page 171: Table 17 - Bit Map (Positive Logic)

    Table 17 – Bit Map (positive logic) Failure Bit Meaning if set to 1 Flow sensor failure. Instrument failure. Lamp failure (S40 family only). Cell heater failure (S30, S40 and S50 family only). mmm = NO instrument ID +pppp+ee = NOx gas concentration (unless the NO option was selected in the Serial Communications Menu, in which case it is NO...
  • Page 172 Serinus 44 User Manual 3.0 Appendix D. ModBus Protocol The Serinus supports a limited Modbus implementation. The only function codes supported are 3 (read holding register) and 16 (write multiple registers). Read Holding Register The user must specify a slave address for Serial requests (but not for TCP requests). This value is the Serinus Serial ID.
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  • Page 174 Serinus 44 User Manual 3.0 1492 Ferntree Gully Road, Knoxfield VIC Australia 3180 Phone: +61 (0)3 9730 7800 Fax: +61 (0)3 9730 7899 General email: info@ecotech.com Support: support@ecotech.com www.ecotech.com Page 174...

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