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ACOEM Met One Instruments E-Sampler V2 Operation Manual

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OPERATION MANUAL
E-Sampler V2
Particulate Monitor
E-Sampler V2-9800
Rev. C
Met One Instruments, Inc.
1600 NW Washington Blvd.
Grants Pass, OR 97526
Telephone: (541) 471-7111
Facsimile: (541) 471-7116
metone.com

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  • Page 1 OPERATION MANUAL E-Sampler V2 Particulate Monitor E-Sampler V2-9800 Rev. C Met One Instruments, Inc. 1600 NW Washington Blvd. Grants Pass, OR 97526 Telephone: (541) 471-7111 Facsimile: (541) 471-7116 metone.com...
  • Page 2 Met One Instruments, Inc. is now part of the Acoem international group of companies. Met One Instruments has been designing and manufacturing class- leading meteorological, ambient air sensing, and air quality monitoring instrumentation since its inception in 1989. Its line of robust industrial-...

  • Page 3: Table Of Contents

    Table of Contents INTRODUCTION About This Manual ..................14 Technical Service ..................14 1.2.1 Return Authorization ....................14 Unpacking the E-Sampler V2 ................ 15 1.3.1 Shipping Damage ...................... 15 1.3.2 Packing Materials Replacement ................15 About the E-Sampler V2 ................16 1.4.1 Laser Radiation Safety and Conformity ..............
  • Page 4 Electrical Connections ................. 35 Accessory Mounting and Connections ............36 4.5.1 MET Sensor Mounting and Connection ..............36 4.5.2 Power Supply Mounting ................... 39 4.5.3 Internal Battery Connection ..................41 5. USER INTERFACE and MENU SYSTEM Initial Startup Sequence ................44 User Interface Navigation ................
  • Page 5 Initial Startup ....................81 7.1.1 System Verification ....................81 Starting and Stopping a Sample ..............81 7.2.1 Continuous Sampling ....................81 7.2.2 Timed Sampling......................83 MAINTENANCE and TROUBLESHOOTING Periodic Maintenance Schedule ..............84 Flow System Cleaning .................. 85 8.2.1 TSP and Cyclone Inlet Devices ................85 8.2.2 47 mm Filter Holder Cleaning ..................87 Flow System Audit ..................
  • Page 6 Clearing Memory ..................113 9.6.1 Clear Alarms ......................113 9.6.2 Clear Data Records ....................114 10. SPARE PARTS and ACCESSORIES 11. E-SAMPLER V2 PRINCIPALS of OPERATION 11.1 Forward Laser Light Scatter Nephelometer System ........118 11.2 Flow System ....................120 11.2.1 Automatic Zero and Span Self-Tests for the Optical System ......
  • Page 7 Table of Figures Figure 1-1 E-Sampler V2 System with Optional Tripod ............16 Figure 1-2 E-Sampler V2 Full System Diagram ..............20 Figure 2-1 Grounding Stud Cap and Nut Removed ..............22 Figure 2-2 Grounding Wire Installed and Secured ..............22 Figure 2-3 Simplified Solar System Diagram .................
  • Page 8 Figure 4-26 Electrical Cover Removed ................. 42 Figure 4-27 Battery Retention Strap ..................42 Figure 4-28 Battery Terminal Covers ..................42 Figure 4-29 Batter Connection Wires ..................43 Figure 4-30 Battery Terminals ....................43 Figure 4-31 Battery Installed ....................43 Figure 5-1 E-Sampler V2 Interface ..................
  • Page 9 Figure 5-27 Engineering Units Screen ..................59 Figure 5-28 Setup Analog Output Screen ................59 Figure 5-29 Display Setup Screen ..................60 Figure 5-30 About Screen ....................... 60 Figure 6-1 Initial Setup Menu ....................61 Figure 6-2 Set Clock, Year Config..................62 Figure 6-3 Initial Setup, Communications ................
  • Page 10 Figure 6-29 Digital Link Main Screen ..................71 Figure 6-30 Setup Digital Sensor Screen ................71 Figure 6-31 Change Digital Address screen ................72 Figure 6-32 Digital Sensor, Addr. 2 ..................72 Figure 6-33 Digital Link Screen, Fail ..................72 Figure 6-34 Self Test Setup Screen ..................
  • Page 11 Figure 7-4 Timed Sample Notification ................... 83 Figure 7-5 Running Timed Sample ..................83 Figure 8-1 Remove and Clean Particle Trap ................86 Figure 8-2 Cyclone Disassembly for Full Cleaning ..............86 Figure 8-3 Cyclone Internal Cleaning ..................86 Figure 8-4 Cyclone Inlet Receiver O-rings ................87 Figure 8-5 Filter Cassette Holder Removal ................
  • Page 12 Figure 11-3 Particulate Size Increase verses RH ..............120 Figure 11-4 E-Sampler V2 Flow System Diagram ..............122 Page 12 E-Sampler V2-9800 Rev C...
  • Page 13 Table of Tables Table 1-1 E-Sampler V2 Specifications Table ................ 18 Table 2-1 External Battery Ratings ..................24 Table 5-1 User Interface Descriptions ..................45 Table 5-2 E-Sampler V2 Menu Hierarchy ................47 Table 7-1 Start Sample Process ....................82 Table 8-1 Periodic Maintenance Schedule ................

  • Page 14: Introduction

    1600 NW Washington Blvd Web: www.metone.com Grants Pass, Oregon 97526 U.S.A. Email: service.moi@acoem.com 1.2.1 Return Authorization Met One Instruments requires that an RA or Return Authorization form be completed and sent to the Met One Service department for approval, before sending instruments back for factory service.

  • Page 15: Unpacking The E-Sampler V2

    Unpacking the E-Sampler V2 When unpacking the E-SAMPLER V2 and accessories, verify and compare them to the packing list to make sure all the required items are included for the type of installation planned. See Section 3 for the system check-Off list which includes standard and optional accessories.

  • Page 16: About The E-Sampler V2

    About the E-Sampler V2 The Met One Instruments, Inc. model E-Sampler V2 is a type of nephelometer which automatically measures and records real-time airborne PM10, PM2.5, or TSP particulate concentration levels using the principle of forward laser light scatter. In addition, the E- Sampler V2 has a built-in 47 mm filter sampler which can optionally be used to collect the particulate for subsequent gravimetric mass or laboratory evaluation.

  • Page 17: Laser Radiation Safety And Conformity

    Laser Light Scatter System Sample air is drawn into the E-Sampler V2 and through the laser optical module, where the particulate in the sample air stream scatters the laser light through reflective and refractive properties. This scattered light is collected onto a photodiode detector at a near-forward angle, and the resulting electronic signal is processed to determine a continuous, real-time measurement of airborne particulate mass concentrations.

  • Page 18: E-Sampler V2 Specifications

    E-Sampler V2 Specifications Table 1-1 E-Sampler V2 Specifications Table PARAMETER SPECIFICATION Particulate concentration by forward light scatter laser Measurement Nephelometer. Principles: 47 mm Filter for Gravimetric sample comparison (Timed Sample). TSP Inlet Standard. PM , PM and PM sharp-cut cyclone inlets Available Cut Points: available.
  • Page 19 Table 1.1 E-Sampler V2 Specifications Table - Continued PARAMETER SPECIFICATION 1.1 amps @ 12 VDC (15 Watts) max continuous draw, running with Power Consumption: inlet heater on. 0.35 amps (4.2 Watts) running with inlet heater off. Operating 0 to +50°C . (Ambient Temperature Sensor Range -30 to +50°C). Temperature: Barometric Pressure: 60,000 to 104,000 Pascal pressure sensor range.

  • Page 20: Figure 1-2 E-Sampler V2 Full System Diagram

    9441 TSP Cap (included) SCC-110 (PM SCC-111 (PM SCC-112 7” Optional Cyclone Heated Inlet Assembly (included) 10820 Wind Sensor (optional) 12” 11” E-Sampler V2 Total Height: ( 6.75” 78” PM / PM 74” TSP EX-905 Tripod (optional) 48” AC to 15 VDC Power Supply (included)

  • Page 21: Site Selection And Positioning Criteria

    2. SITE SELECTION and POSITIONING CRITERIA Use the following criteria when choosing a sampling location for the E-Sampler V2. Always consider safety, security, and the suitability of the sampling environment before deploying the unit. Site Selection Requirements Proper site selection for the E-Sampler V2 is critical for accurate measurements. These items must be correctly addressed for the collected data to be acceptable for regulatory requirements, such as ARM or SPM methods.

  • Page 22: Power Options

    1. Remove the green rubber cap and lock nut. 2. Leave the individual lock washer on the grounding stud. 3. Install the grounding wire lug onto the grounding stud. Thread the lock nut onto the grounding Figure 2-1 Grounding Stud Cap Figure 2-2 Grounding Wire stud to secure the wire and Nut Removed...

  • Page 23: External Batteries With Solar Charging System

    2. External Battery (Array) WARNING: External batteries cannot be charged when connected to the E-Sampler V2. Catastrophic damage will occur to the E-Sampler V2’s internal electronics. The E-Sampler V2 can run for extended periods on external batteries. External batteries can be individually connected to the E-Sampler V2 and replaced with a charged battery as needed.

  • Page 24: Table 2-1 External Battery Ratings

    Table 2-1 External Battery Ratings Local PSH Minimum Battery Sun Rating Solar Array for 5 Array Days kWh/m /day Wattage Backup 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah 2 x 110Ah...

  • Page 25: Inlet Requirements Height

    The solar power setup will require an 83246-1 DC battery power cable which plugs into the main power connector on the bottom of the unit. The internal battery (if used) should be removed from the E-Sampler V2 if a solar power kit is to be used. Solar Panel E-Sampler Array...
  • Page 26 3. MAJOR OBSTRUCTIONS: If located beside a major obstruction (such as a building) then the distance between the E-Sampler V2 and the obstruction should be at least twice the height of the obstruction. o There should be at least a 270-degree arc of unrestricted airflow around the inlet unless mounted on a wall.

  • Page 27: E-Sampler V2 Components

    3. E-SAMPLER V2 COMPONENTS The E-Sampler V2 is supplied with the following standard accessories listed below. Optional Accessories are also listed below the standard accessories. The standard components for the E-Sampler V2 are shown in Figure 3-1 E-Sampler V2 Standard Accessories.

  • Page 28: Figure 3-1 E-Sampler V2 Standard Accessories

    Figure 3-1 E-Sampler V2 Standard Accessories Page 28 E-Sampler V2-9800 Rev C...

  • Page 29: Assembly And Deployment

    4. ASSEMBLY and DEPLOYMENT The E-Sampler V2 is designed for rapid deployment and easy setup by a single person. The average assembly time can be less than 15 minutes in most applications. This section describes the different configuration options and assembly of the E-Sampler V2 and its standard accessories.

  • Page 30: Hanging And Securing The E-Sampler V2

    4.1.1 Hanging and Securing The E-Sampler V2 NOTE: Before installing or mounting any accessories, hang the E-sampler V2 on the chosen mounting option. To hang the E-Sampler V2, slide the mounting tab receiver over the mounting tab of the tripod or mounting bracket tab. Secure the bottom mounting tab to the mounting surface with appropriate hardware.

  • Page 31: Mounting Bracket

    Detent Pins Figure 4-4 Tripod Storage/Transport Figure 4-5 Tripod Legs Deployed Configuration (Upside down) • Securing the EX-905 Tripod Stand the tripod on a surface that is level. The tripod feet can be secured to the ground or mounting surface with bolts, screws, or heavy tent pegs, if necessary. Secure the tripod legs to protect the system in windy conditions.

  • Page 32: Pole Or Mast Mounting

    The hardware provided with the mounting bracket is intended for a pole or mast with a maximum outer diameter of 2-inchs. The hardware may not be suitable for other mounting solutions such as wall mounting. The pre-drilled bracket holes and bottom support bracket slot can be used as templates for marking the mounting surface in preparation for drilling.

  • Page 33: Sample Inlet Configurations

    Sample Inlet Configurations This section explains the various inlet combinations and how to assemble them for specific sampling requirements. The E-Sampler V2 Ships with a rubber inlet cap. This cap needs to be removed before installing any other inlet devices. Figure 4-9 Inlet Cap DO NOT DISCARD the rubber inlet cap as it can be used for performing leak tests and storing the E-Sampler V2.

  • Page 34: Pm Specific Cyclone

    4.2.2 PM Specific Cyclone NOTE: The E-Sampler V2 is NOT EPA certified as a standard and can only be used as a reference for collocation purposes. SCC 111 Cyclone (PM ) Installation: Remove the black rubber cap from the inlet. Slide the wide opening of the silver cyclone adapter (installed on the bottom end of the gray SCC body) onto the inlet...

  • Page 35: 47 Mm Filter Cassette

    47 mm Filter Cassette The 47mm Filter is not a commonly used system of the E-Sampler V2. See Sections 8.5.1 and 11.2.3 for more information about the 47mm filter system, its application and operation. Electrical Connections The E-Sampler V2 has five keyed plugs with leashed weatherproof caps on the bottom of the unit.

  • Page 36: Accessory Mounting And Connections

    4.4.1.1 Connector Descriptions Grounding Point: The grounding lug is where the E-Sampler V2 chassis is grounded. To install the green and yellow grounding cable to the E-Sampler V2, remove the green rubber cap from the grounding point threads. Remove the nut from the grounding pint. Place the blue lug, attached to the grounding cable, over the grounding point and secure with the nut.

  • Page 37: Figure 4-14 Sensor Mounting Diagram

    NOTE: It is recommended to assemble the mounting hardware on the Sensor bracket before mounting to the tripod or pole. Sensor Bracket 1. Put the U-bolt threads through the inner holes V-Channel of the sensor bracket. Bracket 2. Slide the V-channel bracket over the threads, V facing towards the sensor...

  • Page 38: Figure 4-17 Sensor Plug Alignment Key

    83832 Ambient Sensor Connection Alignment Key Location Unscrew and remove the cap from the first RS-485 plug at the bottom of the E-Sampler NOTE: the connector alignment key is facing towards the front of the unit. Figure 4-17 Sensor Plug alignment key Alignment Gap Align the six-pin Sensor Connector alignment gap with the plug key.

  • Page 39: Power Supply Mounting

    Tighten the threaded collar, finger tight. Figure 4-20 Sensor Cable Connected 4.5.1.1 Optional Wind speed and direction Sensor If an optional 10820 or EX-AIO digital wind speed/direction sensor is supplied, then it will come with a cross-arm tube which mounts to the stud on the top of the EX-905 tripod with supplied fittings.

  • Page 40: Figure 4-21 Power Supply Mounting Position

    There are mounting/alignment tabs at the top and base of the power supply enclosure. Secure the top of the power supply first, then the bottom. With the cables in the downward position, mate the back of the power supply to a leg of the tripod using the tab cut-outs as an alignment guide.

  • Page 41: Internal Battery Connection

    Alignment Gap Remove the DC Power plug cap by unscrewing it, counterclockwise. Align the 7-pin connector gap with the DC Power plug Figure 4-23 Power Supply 7-Pin Connector Tighten the threaded collar while applying upward pressuer to the base of the connector.

  • Page 42: Figure 4-26 Electrical Cover Removed

    With the electrical cover removed, Locate the battery retention strap on the right side of the electrical Battery Retention compartment. Strap Figure 4-26 Electrical Cover Removed The battery retention strap is made from hook and loop material. Pull the two ends apart and move them out of the way.

  • Page 43: Figure 4-29 Batter Connection Wires

    Locate the internal battery connectors with a yellow in-line fuse holder. Figure 4-29 Batter Connection Wires Slide the red wire connector onto the terminal with the red square. Slide the black wire onto the terminal with the back square. When both wires are connected, the instrument will power on.

  • Page 44: User Interface And Menu System

    5. USER INTERFACE and MENU SYSTEM This section describes the E-Sampler V2 user startup sequence, user interface system, each menu, its sub menus, and their functions. Initial Startup Sequence When the E-Sampler V2 is first powered on, a dark screen will appear for a few moments and change to the white splash screen with the Met One Logo in the top left corner.

  • Page 45: Table 5-1 User Interface Descriptions

    Table 5-1 User Interface Descriptions Button Description Press between the triangle and square icons to actuate the button. When pressed, the Start/Stop button functions as follows: At the Home Screen: Starts or stops a sample. • In the Menu system: Return to Home screen. •...

  • Page 46: Editing Input Fields

    5.2.1 Editing Input Fields Set Clock To adjust an entry field, turn the selector 20YY-MM-DD knob so the green box is around the field Date: to be edited. 24 01 01 Press the selector knob to edit the field Time: 01:00:00 within the green box.

  • Page 47: Menu Hierarchy

    Menu Hierarchy Table 5-2 E-Sampler V2 Menu Hierarchy Main Menu Sub Menu Options Overview Displays the following: Date and Time, Battery Level (BV), Concentration (Conc), Flow, Ambient Temperature (AT), Barometric Pressure (BP), Home Screen NO SUB MENU Sampling Status (Off or ON), External Relative Humidity (RHx), Internal Relative Humidity (RHi), Wind Speed (WS), Wind Direction (WD).

  • Page 48: Detailed Menu Descriptions

    Detailed Menu Descriptions The following sections describe the seven main menus and the functions of the sub- menus within. The sub-menus have specific functions to change settings for proper configuration, operation, and calibration of E-Sampler V2 systems. This section is broken up by the main menus and sub-menus with individual descriptions. The 5.X.X level shows the main menu screens, and the 5.X.X.X sections show and explain the submenus and their individual entries.

  • Page 49: Figure 5-6 Home Screen

    There are two pages of live data available from the home screen. The data is refreshed or updated every second. Figure 5-5 displays the first page of live data and Figure 5-6 shows the second page of live data. There are page indicators on the right side of the screen.

  • Page 50: Toolbox Menu

    5.4.2 Toolbox Menu The Toolbox menu provides commonly used configuration options. Example: If the instrument moves from one location to the next, configurations may need to change to accommodate new sample site requirements. The subsections below describe each of the configuration options within the Toolbox Menu.

  • Page 51: Figure 5-10 Self Test Screen

    • K-factor: Used to correct mass output slope multiplier. Correction values are established by utilizing the 47mm filter options for gravimetric reference or collocating with an FRM or FEM instrument. See Sections 8.5 and 11.2.3 for more information. • Sample Mode: Selectable run time options, Continuous sampling mode or Timed Sample mode.

  • Page 52: Figure 5-11 Heater Control Screen

    5.4.2.3 Heater Control Screen The heater control screen displays the current E-Sampler V2’s internal RH% for reference and RH Setpoint. Heater Control Internal RH: 31 % RH Setpoint: Figure 5-11 Heater Control Screen • RH Setpoint: This is used to control when the inlet heater is automatically turned on or off, based on the internal RH.

  • Page 53: Figure 5-13 Alarm Contact Screen

    5.4.2.5 Alarm Contact Screen This screen is used to establish the rules for activating the alarm contact closure relay output of the E-Sampler V2. Alarm Contact Source: AVERAGE Level: 000.100 mg/m3 Active: Delay: Figure 5-13 Alarm Contact Screen The contact relay activation sources are Alarms, Average and Real Time. Alarms will trigger the contact relay when a new alarm event takes place.

  • Page 54: Calibrate Menu

    5.4.3 Calibrate Menu This section describes the Calibration menu, its sub-menus, and their functions. The Calibration menu provides the means to audit and calibrate individual measurement sensors that are vital to the operation of the E-Sampler V2. Calibrate Menu Calibrate AT Calibrate RH Calibrate BP Calibrate Flow...

  • Page 55: Figure 5-18 Calibrate Bp Screen

    5.4.3.3 Calibrate BP Screen Barometric Pressure The Calibrate BP screen is used for field audits and calibrations of the internal 981.2 mbar barometric pressure sensor. Note that the Reference: 0981.3 mbar pressure will be displayed as the selected units for pressure (mbar or mmHg). See Section 8.4.3 for the BP calibration procedure.

  • Page 56: Alarm Log Screen

    5.4.3.6 Leak Test Screen Leak Test STEP 1 The Leak Test screen is used to check the Cap Off Inlet flow system for leaks that can affect performance and accuracy. See Section 8.3.1 for the leak test procedures. NEXT Figure 5-21 Leak Test Screen 5.4.4 Alarm Log Screen The Alarm Log screen allows operators to quickly view alarms and error log entries.

  • Page 57: Transfer Data Screen

    5.4.5 Transfer Data Screen The Transfer Data screen is a simple and convenient option for retrieving data reports from the E-Sampler V2, locally. There are two file download options (All Data and User Files) and an option to select the number of days of stored data to be downloaded. See Section 9 for the transfer data procedure.

  • Page 58: Figure 5-25 Set Clock Screen

    5.4.6.1 Clock Set Clock 20YY-MM-DD The Clock screen is used to set the date Date: 24 01 01 and time. An accurate date and time is Time: vital for tracking data and alarms. See 01:00:00 Section 6.1.1 for the clock setting procedure.

  • Page 59: Figure 5-27 Engineering Units Screen

    5.4.6.3 Engineering Units Engineering Units Conc: ug/m3 Temperature: This screen provides customization for units of measurement, displayed and Pressure: mbar reported. See Section 6.1.3 to set the Wind Speed: different engineering units. Figure 5-27 Engineering Units Screen • Conc: Concentration Units of measurement per cubic meter options; ug/m (micrograms), mg/m (milligrams).

  • Page 60: About

    The About screen provides the instrument’s model number, serial number, firmware version, Met One Instruments Service contact information, last calibration date, and total runtime. About E-Sampler A12345 83604 R1.0.0 Service.moi@acoem.com 541-471-7111 Calibration Date: 01/01/2024 Run Time: 00d 01h 32m Figure 5-30 About Screen...

  • Page 61: E-Sampler V2 Configuration

    6. E-SAMPLER V2 CONFIGURATION This section explains the Initial Setup process, and configuration process for user and regulatory sampling requirements. Initial Setup Menu The Initial Setup procedure is intended for first time use, sample site transitions or if the instrument’s memory has been cleared. The settings options in the Initial Setup menu (Figure 6-1) are Date and Time, Communication parameters, Engineering Units of measurement, Analog Output and Display Settings.

  • Page 62: Communications Menu Settings

    Date (From left to right) Year-Month-Day Set Clock Time (From left to right) 20YY-MM-DD Hours: Minutes: Seconds Date: 24 01 01 Time: 01:00:00 Select a field using the green box. Use the selector knob to edit the selected field. When all fields are adjusted accordingly, Figure 6-2 Set Clock, Year Config.

  • Page 63: Figure 6-4 Location Id Config

    6.1.2.1 Location ID Location: Main Menu> Initial Setup>Communications Setup Communications The Location ID is an editable field with a three-digit value. The range is 001 to 999. Station ID: Move the green box around the three Serial Comms: 9600 numbers next to Location ID (001). Protocol: Standard Press the selector knob to enter edit mode...

  • Page 64: Figure 6-7 Communications Protocol Config

    6.1.2.3 Protocol Location: Main Menu> Initial Setup>Setup Communications See Section 5.4.6.2 for the different protocol settings descriptions. Setup Communications Station ID: Move the green box around the protocol Serial Comms: 9600 option to the right of “Protocol” shown in Figure 6-7 (Standard). Protocol: Standard Press the selector knob to view the...

  • Page 65: Setup Engineering Units

    6.1.3 Setup Engineering Units NOTE: Changing engineering units will affect stored and displayed data. Location: Main Menu> Initial Setup Initial Setup Clock Communications From the Initial Setup Menu: Engineering Units Turn the selector knob to move the green Analog Output box around “Engineering Units”...

  • Page 66: Figure 6-13 Temperature Units Config

    6.1.3.2 Temperature Units Location: Main Menu> Initial Setup>Engineering Units Engineering Units Conc: ug/m3 Temperature: With the green box around the option to Pressure: mbar the right of “Temperature” (C), press the selector knob to view the available Wind Speed: options (See Figure 6-14). Figure 6-13 Temperature Units Config.

  • Page 67: Figure 6-16 Pressure Unit Options

    Turn the selector knob to the green box Pressure around the required setting. mbar Press the selection knob to set the pressure unit. mmHg mbar: millibars inHg PA: Pascal mmHg: millimeters of mercury inHg: inches of mercury Figure 6-16 Pressure Unit Options 6.1.3.4 Wind Speed Units: Location: Main Menu>...

  • Page 68: Analog Output

    6.1.4 Analog Output Location: Main Menu> Initial Setup> Initial Setup Clock Communications From the Initial Setup Menu: Engineering Units Turn the selector knob to move the green Analog Output box around “Analog Output” and press the knob to select. Display Figure 6-19 Analog Output Setup Analog Output Conc Range:...

  • Page 69: Display

    Setup Analog Output Conc Range: 1.0 mg/m3 With the green box around the option to Volt Range: 0-2.5V the right of “Volt Range” (Volt output range), press the selector knob to view the available range options (See Figure 6-23). Figure 6-22 Setup Analog Output, Volt Range Config.

  • Page 70: Figure 6-25 Display Setup, Backlight

    Display Setup The three digits to the right of “Backlight” are editable when selected. The digits Backlight: represent the backlight brightness Timeout: 5 Min percent. The number range is 100 (brightest) to 10 (darkest). Move the green box around the three numbers next to “Backlight”...

  • Page 71: Digital Sensors

    Digital Sensors The E-Sampler V2 accepts up to two digital sensors at one time. This section describes the procedure for configuring the E-Sampler V2 digital sensor communication. An 83832 AT/RH digital smart sensor, used for accurate monitoring and reporting of ambient conditions, is provided with the E-Sampler V2 as standard equipment.

  • Page 72: Figure 6-31 Change Digital Address Screen

    The current digital address will be Change Digital Address displayed to the right of “From” (1). Digital address options are shown at the From bottom of the screen. Turn the selection knob to move the green box around the new digital address (Set Set 1 Set 2 Set 3...

  • Page 73: Self Test Setup

    Self Test Setup Location: Main Menu> Tool Box> Self Test Setup Self Test The Self Test screen is where the Interval Period: 1 HR of the Self Test cycle can be modified or to enable or disable the Span Check option. Span Check: To modify the Self Test cycle period, move the green box around the option next to...

  • Page 74: Sample Setup

    Turn the selector knob to move the green Span Check box around the required Span Check setting. The Span Check period can be set to No (Off) or Yes (On). No: Span Check will not run until turned on. Yes: Span Check will run during the self test.

  • Page 75: Engineering Units

    Sample Time 1 MIN Turn the selector knob to move the green 5 MIN box around the required Sample Time 10 MIN option. 15 MIN Press the selector knob to set the new 30 MIN sample time duration. 1 HR Figure 6-39 Sample Time Options 6.4.2 Engineering Units...

  • Page 76: K-Factor

    6.4.3 K-factor Sample Setup Turn the selector knob to move the green Sample Time: 1 MIN box around the editable field (1.00) to the Units: ug/m3 right of “K-Factor.” K-Factor: 1.00 Press the selector knob to edit the K- Sample Mode: Continuous Factor numerical field.

  • Page 77: Figure 6-45 Sample Mode Options

    Sample Mode Turn the selector knob to move the green Continuous box around the required Sample Mode Option. Timed Press the selector knob to set the new Sample Mode. When “Timed” sample mode is selected, “Setup Time” Will appear at the bottom right corner of the main Sample Setup Screen (Figure 6-46).

  • Page 78: Heater Control, Rh Setpoint

    Heater Control, RH Setpoint Location: Main Menu> Tool Box> Heater Control Heater Control Internal RH: 31 % RH Setpoint: Internal RH is for refence only. Press the selector knob to edit the RH Setpoint used for heater activation. Figure 6-48 Heater Control Use the selector knob to edit the three- digit numerical value that represents the Heater Control...

  • Page 79: Figure 6-51 Contact Source Options

    Turn the selector knob to move the green Contact Source box around the required contact source ALARMS option. AVERAGE Press the selector knob to set the source. REAL-TIME See Section 5.4.2.5 for detailed descriptions for each source option. The settings below apply for all three Contact Source Options shown by Figure 6-52.

  • Page 80: Figure 6-54 Alarm Contact, Active

    Alarm Contact Source: ALARMS Turn the selector knob to move the green box around the two-digit numerical value Level: 000.100 mg/m3 to the right of “Active” (Figure 6-54). Active: Press the selector knob to edit the two- Delay: digit numerical value. The Active time range can be set from one to 60 seconds.

  • Page 81: E-Sampler V2 Operation

    7. E-SAMPLER V2 OPERATION This section explains the initial startup procedures which includes how to start and stop samples in each sampling mode. Initial Startup The initial startup procedure begins when power is applied to the E-Sampler V2. After power is applied, the splash screen will appear for approximately three seconds, leading to the Home Screen.

  • Page 82: Figure 7-3 Stop Sample Confirm Screen

    When YES is selected, the E-Sampler V2 will begin sampling. The table below outlines the order of processes and their descriptions after a sample has been initiated. Table 7-1 Start Sample Process Process Description Runs the purge pump to remove any particulates in the Purging detection system.

  • Page 83: Timed Sampling

    7.2.2 Timed Sampling See Section 6.4.4 to set the start time and duration of Timed Sampling mode. Timed Sampling mode will start sampling Timed Sample at the scheduled time and continue for the set duration, unless manually stopped. Start: View the scheduled timed sample, press 2024-01-01 01:00:00 the keypad Start button while the home Duration:...

  • Page 84: Maintenance And Troubleshooting

    8. MAINTENANCE and TROUBLESHOOTING This section provides information about routine maintenance of the E-Sampler V2, and for performing more detailed diagnostic tests if a problem is encountered. The E-Sampler V2 generates error messages on the display or in the data log if a failure or other problem is detected.

  • Page 85: Flow System Cleaning

    Factory Service Details: The E-Sampler V2 needs to be returned to the factory for service and recalibration. The recommended period is two years. However, some users establish their own interval depending on the harshness of the sampling conditions, particulate levels, and data scrutiny.

  • Page 86: Figure 8-1 Remove And Clean Particle Trap

    Particle Trap and O- Ring Figure 8-1 Remove and Clean Particle Trap Cyclone Internals: Disassemble the cyclone by unscrewing and removing the three socket-head Allen screws (Figure 8-2). Separate the two parts of the cyclone to access the conical chamber inside (Figure 8-3). All inside surfaces must be cleaned. Isopropyl alcohol and cotton-tipped applicators are recommended for cleaning the areas pointed out by Figure 8-3.

  • Page 87: 47 Mm Filter Holder Cleaning

    Replace if damaged Figure 8-4 Cyclone Inlet Receiver O-rings 8.2.2 47 mm Filter Holder Cleaning The 47mm Filter holder is directly in line with the flow path and can collect debris over time. Excessive debris buildup can cause flow restrictions leading to early pump failure or sampling data inaccuracies.

  • Page 88: Figure 8-6 Filter Cassette Holder Removed

    The top and bottom rims of the filter cassette mate with V-Rings, sealing the flow path. These rims will need to be wiped off. Filter cassette orientation: The filter screen is recessed into the cassette from the top side of the filter Cassette.

  • Page 89: Flow System Audit

    Turn the cassette over, exposing the bottom side of the screen. With compressed air, blow off the bottom side of the screen. Wipe off the bottom cassette rim. Install the cassette back into the cassette holder, and reinstall the assembly, top side up, back in the E-Sampler V2.

  • Page 90: Leak Check Procedure

    8.3.1 Leak Check Procedure Performing leak checks are vital for maintaining overall sampling performance of the E- Sampler V2. This section describes the necessary equipment and procedures for performing leak checks in the field. The Leak Test screen is used to check for airflow system leaks which could affect the accuracy of the flow measurements or cause unwanted measurement biases.

  • Page 91: Field Calibration Procedures

    Field Calibration Procedures Menu Location: Main Menu> Calibrate The E-Sampler V2 has a system of calibration menus which allow the operator to audit or calibrate the airflow control system parameters for optimal performance and sampling accuracy. These parameters should be audited monthly and calibrated quarterly during continuous operation.

  • Page 92: Ambient Rh Sensor Calibration

    8.4.2 Ambient RH Sensor Calibration Location: Main Menu> Calibrate> Calibrate RH The Calibrate RH screen is used for field audits or calibrations of the 83832 AT/RH sensor’s relative humidity measurement. The RH parameter is the current reading from the E-Sampler V2 external RH sensor. The Reference parameter is where you can enter the correct value from your traceable humidity standard.

  • Page 93: Flow Calibration

    8.4.4 Flow Calibration Screen Location: Main Menu> Calibrate> Calibrate Flow WARNING: The E-Sampler V2 temperature, pressure, and leak status must be checked before performing any flow calibrations to prevent errors. The Calibrate Flow screen is used for field audits or calibrations of the sample flow measurement of the E-Sampler V2.

  • Page 94: Figure 8-12 Calibrate Dac Main Screen

    Calibrate DAC Mode: Adjust To: 0.100 Output: DEFAULT Figure 8-12 Calibrate DAC Main Screen NOTE: Only a high-quality voltmeter should be used for this test. Low quality voltmeters may not give accurate measurements at millivolt levels. The E-Sampler V2 analog output can be confirmed with the external datalogger connected, to make sure that the logger or cables are not affecting the voltage.

  • Page 95: K Factor

    Cal Mode HIGH The MODE can be set to LOW, or HIGH using the selector knob. Figure 8-13 Calibration Mode Options Calibrate DAC With the green selection box around the Output bar, press the selection knob. Mode: HIGH Adjust To: 2.400 Turn the selection Knob to increase or decrease the voltage output.

  • Page 96: Establishing A K-Factor Correction (47Mm Filter)

    8.5.1 Establishing a K-Factor Correction (47mm Filter) The E-Sampler V2 47mm filter option is a low-flow version of the manual sampler gravimetric method, which is the standard measurement technique against which all continuous methods are compared in the U.S. and most other countries since it is very accurate and yields repeatable data.
  • Page 97 For example, the E-Sampler V2 draws 0.12 cubic meters per hour (at 2.0 LPM). If the average daily concentration at the site is about 0.035 mg/m , and you want .5 mg on the filter, then: 0.035 mg/m * 0.12 m /hr = 0.0042 mg/hr 0.500 mg / 0.0042 mg/hr = 119 hours (≈5 days) 4.

  • Page 98: Alarms

    See Section 6.4.3 on how to set a K-factor. The K-Factor will only be applied to new data! The resulting corrected concentrations are stored in memory, shown on the LCD, and scaled on the analog output. Table 8-3 K-factor Calculation Example E-Sampler V2 Sample Event Time: 120 Hours (5 days) E-Sampler V2 Flow Rate:...

  • Page 99: Table 8-4 Alarm Descriptions

    Table 8-4 Alarm Descriptions Alarm/Error Alarm Description Message This alarm message indicates that the E-Sampler V2 power has been cycled off and then back on. This can mean that there was a power failure or that someone simply unplugged the unit to turn it off. The E- Sampler V2 alarm display will show OFF time indicating how long the power was off, and ON time indicating how long the power was on POWER OUTAGE...

  • Page 100: Figure 8-16 Data Output (Legacy Mode) Alarm Code Example

    The E-Sampler V2 also contains an “alarm” code column, within the retrieved User data report, to indicate if there were any alarm or error flags during that particular sample period. An example of an E-Sampler V2 data record is shown below. The alarm header and alarm code are highlighted below: AutoMet Data Log Report 02-AUG-2011 09:25:10,...

  • Page 101: Problems And Solutions Table

    E-Sampler Alarm Log Report 02-AUG-2011 14:25:26, SN,M4373 20-NOV-2008 20:00:00, Power outage: 0.00:20:17 On: 5.02:30:22 20-NOV-2008 20:00:00, Laser Failure: 26.3 mA 20-NOV-2008 20:00:00, Flow failed: Setpt: 2.0 Flow: 1.4 20-NOV-2008 20:00:00, Low battery: 9.46 Figure 8-17 Retrieved Alarm Log Report Example In each case, the alarm log record indicates the time and date of the error, and the specific parameter which generated the alarm.
  • Page 102 Problem: Leak check failures Cause/Solution: Make sure that the inlet is completely blocked with a rubber or vinyl • cap during the leak check. Using a finger to block the inlet is not sufficient. Make sure the inlet tube is fully seated into the top of the optical •...

  • Page 103: Field Replaceable Components

    Problem: The E-Sampler V2 data does not match BAM or FRM data at the same site Cause/Solution: A K-Factor (multiplier) must be established for good accuracy and • correlation to collocated instruments. The K-Factor will sometimes be very significant, such as a multiplier of 3 or 5. See Section 6.4.3. The E-Sampler is calibrated on latex 0.6 micron micro-spheres.

  • Page 104: Pump Module Replacement

    Figure 8-19 Removing Filter and holder Figure 8-18 Unscrewing Filter Holder When the filter and holder are removed from the main assembly, the filter can be separated from the holder by pulling the filter over the threads and off the holder. Clean the filter holders by wiping them with a cloth, soap and water may be required.

  • Page 105: Figure 8-21 Pump Module Top View

    design uses a removable flow system subassembly containing both pumps, the flow sensor, and pulsation chamber. ***Before replacing the pump, check all filters, flow calibration and, leak check.*** WARNING: The E-Sampler V2 is densely assembled, and it can be difficult to service inside.
  • Page 106 1. Disconnect all power from the E-Sampler V2. Remove the internal battery if used. 2. Remove the inlet heater assembly from the top of the E-Sampler V2. Remove the three screws from the base of the plastic heater sleeve, then pull the assembly out of the top of the unit.

  • Page 107: Data Retrieval

    9. DATA RETRIEVAL This section describes the methods used to retrieve data files from the E-Sampler V2. The unit has a USB C serial port on the front panel and a SERIAL COMMS port on the bottom for either RS-232 or RS-485 two-way serial port which handles all digital data transfer, and may be used with a local computer, laptop, or digital datalogger.

  • Page 108: 9.3 Comet™ Data Retrieval Software

    9.3 Comet™ Data Retrieval Software The E-Sampler V2 recommended data retrieval software, Comet™, can be downloaded for free at metone.com. Comet software is a simple Windows-based communications terminal program developed by Met One Instruments, Inc. This is the recommended method for local and TCP/IP (with a cellular or network modem) data retrieval, since Comet allows the user to easily download the data logs, error logs, and settings files from the E-Sampler V2, without having to know any of the underlying communications protocols.

  • Page 109: Terminal Mode

    This section provides the necessary information for terminal program communication with the E-Sampler V2: o Connect the SERIAL COMMS port on the bottom of the E-Sampler V2 or the USB C port (A Silicon Labs CP210x Driver for the USB connection must be installed before connecting to the USB Type C port as mentioned in Section 9.3, above) on the front panel to your computer or laptop using the option serial cable or a USB-C Cable.

  • Page 110: Terminal Commands

    9.4.3 Terminal Commands When a serial connection between a computer terminal program and the E-Sampler V2 has been established, the various E-Sampler V2 data files can be viewed and settings changed, by sending the following commands through serial port with keyboard strokes or ASCII characters.
  • Page 111 In this example (Legacy report type),the average period is set to 15 minutes, so there was a complete record stored to memory every 15 minutes. Data parameters such as wind speed/direction and external RH will always appear in the data array even if no sensors were connected for those channels.

  • Page 112: Upgrade Firmware

    The following table defines the E-Sampler V2 data parameters as they appear in the header for data reports: Table 9-3 Data Report Headings Field Description Time Date and time stamp of the data record. Conc Real-time light scatter average concentration in mg/m (mg/m Flow (lpm) Average air flow for the data logging period in actual liters per minute.

  • Page 113: Clearing Memory

    7. A “Done!” message will be displayed at the end of the update process. Execution time is approximately five to fifteen minutes. 8. The E-Sampler V2 can now be operated with the new firmware. Clearing Memory 9.6.1 Clear Alarms Location: Main Menu>Alarm Log Alarm Log 2024-01-01 01:00:00 POWER OUTAGE...

  • Page 114: Clear Data Records

    9.6.2 Clear Data Records Location: Main Menu> Toolbox> Memory Memory Free: 70 % Press down on the selector knob to CLEAR the unit’s memory. Press Knob to Clear Memory CLEAR Figure 9-4 Memory, Clear Screen Clear Memory A confirmation screen will appear. Select the CLEAR option on the confirmation Are you sure you want to screen to continue with erasing.

  • Page 115: 10. Spare Parts And Accessories

    10. SPARE PARTS and ACCESSORIES Consumables, Replacement Parts, and Accessories The following parts are available from Met One for maintenance, replacement, service, and upgrades. If unsure about a part you need, please contact the technical service department. Some of these parts may require technical skills or special instructions before use or installation.
  • Page 116 Meteorological Sensors Description Part Graphic Number 10820 Wind Speed and Wind Direction Combination Sensor AIO-2 Wind Speed, Wind Direction, Ambient EX-AIO Temperature, RH, and Barometric Pressure Combination Sensor. Includes 6 foot cable (10706) and 3 foot crossarm (7156) 83832 Ambient Temperature and Relative Humidity Sensor Miscellaneous Parts and Accessories Description...
  • Page 117 Power Cable, E-Sampler to External Battery 83246-1 Serial Comm Cable, E-Sampler 83849 Strip and tin Serial Cable 83315 USB C Serial Cable 502116 83609 External Analog Relay Cable 83867 CCS Modem Comms Cable E-Sampler V2-9800 Rev C Page 117...

  • Page 118: 11. E-Sampler V2 Principals Of Operation

    11. E-SAMPLER V2 PRINCIPALS of OPERATION The Met One Instruments, Inc model E-SAMPLER V2 is a type of nephelometer which automatically measures and records real-time airborne PM , PM , PM or TSP particulate concentration levels using the principle of forward laser light scatter. This section describes the measurement systems.

  • Page 119: Figure 11-2 Clean Air And Particulate Scatter Conditions In The Md-F Engine

    1-second values are temperature compensated using a factory-set algorithm, and averaged into the user-selected data storage interval of 1, 5, 10, 15, 30, or 60 minutes. The 1-second values are also displayed on the LCD and available on the analog output. Figure 11-2 Clean Air and Particulate Scatter Conditions In the MD-F Engine Sample RH Control for Light Scatter Mass The relative humidity (RH) of the sample air has an influence upon the measurement of...

  • Page 120: Flow System

    Figure 11-3 Particulate Size Increase verses RH 11.2 Flow System This system allows the particulate to be collected as a second method to obtain airborne particulate mass data, or for laboratory analysis of the particulate. The main function for the filter collection system is to establish a slope correction multiplier to correct the E-Sampler V2 real-time concentration output.

  • Page 121: The Airflow Control System Diagram And Description

    11.2.2 The Airflow Control System Diagram and Description The flow control system is an integral component of the E-Sampler V2. A complete description is included to assist the user in understanding the E-Sampler V2 flow system: 1. Ambient air is drawn in through the TSP inlet and the PM , PM or PM cyclone (if...
  • Page 122 9. During the zero portion of the automatic periodic self-test cycle, the main sample pump is turned off and the purge pump is turned on. The air is filtered by the purge filter and circulated through the laser module at a higher flow rate. The air in the laser module is 100% filtered during this process, and no scattered light should enter the detector.

  • Page 123: 47Mm Gravimetric Filter Collection System

    11.2.3 47mm Gravimetric Filter Collection System After the sample air stream has been measured by the E-Sampler V2 and exits the MD-F optical engine, it passes through the built-in 47mm filter sampler system. This system allows the particulate to be collected as a second method to obtain airborne particulate mass data, or for laboratory analysis of the particulate.

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