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Met One Instruments, Inc.
1600 NW Washington Blvd.
Grants Pass, OR 97526
Telephone: (541) 471-7111
Facsimile: (541) 471-7116
www.metone.com
E-BAM Particulate Monitor Operation Manual - ©
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other
language in any form without the written permission of Met One Instruments, Inc.
E-BAM-9800 Operation Manual Rev M
E-B
P
ARTICULATE
O
PERATION
E-BAM-9800 R
Copyright 2008 Met One Instruments, Inc. All Rights Reserved worldwide.
AM
M
ONITOR
M
ANUAL
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Page 1
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Table of Contents
Related Manuals for Met One Instruments E-BAM
Summary of Contents for Met One Instruments E-BAM
- Page 1 Copyright 2008 Met One Instruments, Inc. All Rights Reserved worldwide. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language in any form without the written permission of Met One Instruments, Inc. E-BAM-9800 Operation Manual Rev M...
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Page 2: Table Of Contents
1.2 Technical Service ......................4 1.3 E-BAM: Environmental Beta Attenuation Monitor ............4 1.4 Beta Radiation Safety Statement ................5 1.5 The E-BAM and U.S. EPA Equivalent Methods ............5 1.6 E-BAM Specifications ....................6 2 E-BAM UNIT ASSEMBLY AND START-UP 2.1 Assembling the E-BAM .................... - Page 3 7.11 The STANDARD Temperature Setup Screen ............47 7.12 The Span Membrane Setup Screen ................47 8 MAINTENANCE and TROUBLESHOOTING 8.1 E-BAM Error Displays, Error Logs, and Error Codes ..........48 8.2 Contact Closure Alarm Relay Output ................ 51 8.3 Basic Problem and Cause/Solution Table ..............52 8.4 Met One Suggested Periodic Maintenance ...............
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Page 4: Introduction
This document is organized with the most important information toward the front of the manual, such as site selection, installation, setups, and field calibrations, which all E-BAM owners and operators should read and understand. Toward the back are sections that provide in-depth information on subjects such as theory, diagnostics, accessories, and alternate settings. -
Page 5: Beta Radiation Safety Statement
(microcurries), which is below the “Exempt 15Ci Concentration Limit” as defined in 10 CFR Section 30.71 – Schedule B. The owner of an E-BAM is not required to obtain any license in the United States to own or operate the unit. The owner of an... -
Page 6: E-Bam Specifications
12 to 16 Volt DC input. 4.1 amps @12 VDC (50 Watts) max continuous draw. Weight: 13.2 kg (29 lbs) E-BAM only. 23 kg (50 lbs) with tripod, PM10, 9250, power supply. Unit Dimensions: 41cm high x 36cm wide x 20cm deep. (16” x 14” x 8”). -
Page 7: Bam Unit Assembly And Start-Up
Loosen the black weatherproof fitting on top of the E-BAM and insert the short inlet tube into the top of the unit. The tube must go through the black fitting and through two o-rings in the top of the E-BAM. Make sure the tube is fully seated by rotating it back and forth. - Page 8 When the power supply is plugged into AC power, the E-BAM will turn itself on automatically. Note: If the E-BAM is to be powered by a battery array or solar system, or if the unit is supplied with an external AC pump box with a built-in power supply, then these items will plug into the E-BAM power input instead of the normal power supply.
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Page 9: Electrical Connections
The E-BAM will turn on when a power source is connected to the power input. Note: There is a 3-color LED located on the bottom of the E-BAM near the electrical connectors. This LED may flash or hold various colors, but is used for factory test software applications only, and does not indicate any specific status information to the user. - Page 10 83” PM10 shown far side) 88” PM2.5 9170 Tripod 43” EX-121 AC to 12 VDC Power Supply (optional) 41” triangular tripod footprint Standard E-BAM Configuration Not to scale. Some items simplified for clarity. E-BAM-9800 Operation Manual Rev M Page 10...
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Page 11: Power-Up And Automatic Operation
2.3 Power-up and Automatic Operation The E-BAM is designed to turn on automatically when power is applied. The unit will ask if you are ready to start, then prompt you to verify several setup menus which are described below. Then the unit will perform an automatic self-test routine which takes several minutes. - Page 12 PM . The screen refers the user to a picture located inside the door of the E-BAM for easy identification of the two possible inlet types:...
- Page 13 After the MACHINE TYPE is set or verified, the E-BAM will raise the nozzle and check to see if the stainless steel shipping shim is installed under the nozzle. Note: The shim is attached to the unit with a tether chain, and is also used for the zero portion of the span membrane test. The shim should be installed any time the E-BAM is shipped or transported in order to prevent nozzle damage.
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Page 14: Filter Tape Loading
2.5 Filter Tape Loading Filter tape must be loaded into the E-BAM for sampling. One roll of tape will last anywhere from a few weeks to more than a year, depending on the TAPE ADVANCE setting and ambient particulate levels. -
Page 15: Warm-Up Period
2.6 Warm-up Period The E-BAM must warm up for at least one hour before optimum accuracy of the concentration data can be obtained. This is because the beta detector contains a vacuum tube which must stabilize. This applies any time the unit is powered up after being off for more than a moment. Setups, tests, and flow calibrations can be performed during this warm up time. -
Page 16: Bam User Interface And Menu System
3 E-BAM USER INTERFACE and MENU SYSTEM This section describes the E-BAM user interface system, and describes the functions of the main menu options, including how to view data and errors. 3.1 The User Interface - Keypad and Display Functions The E-BAM user interface consists of a 4x20 character vacuum fluorescent display (VFD) and a dynamic keypad. -
Page 17: Using The Main Sampling Screen
3.2 Using the Main Sampling Screen The E-BAM display shows the Sampling screen when the unit is in normal operation. The active display area shows the current date and time, the latest real-time average concentration, and the last hourly concentration. Also shown is a status message, such as “SAMPLING…”. To view the rest of the instantaneous sensor parameters which do not all fit on the display at once, press the down ▼... -
Page 18: Using Main E-Bam Menu System
BAM will simply raise the sample nozzle for easy tape loading, then display “PLEASE LOAD TAPE.” Load the tape and press the CONTINUE key to go back to the main menu. SETUP: This is the setup menu for the E-BAM. All of the setup parameters in this menu are described in Section 7. - Page 19 “OK TO TURN OFF E-BAM”. The power cord can now be unplugged to power off the E-BAM. Note: It is OK to power off the E-BAM at almost any time during normal operation. This menu simply allows the opportunity to insert the nozzle shim.
- Page 20 Note: If the ESC key is pressed while the E-BAM is displaying the ABOUT screen, the unit will prompt the user for a password. This is for entry into an advanced factory test menu. Do not enter this system unless instructed to do so by a Met One technician.
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Page 21: Sample Site Selection
If a E-BAM is to be co-located at a station with other BAM or FRM sampler, the inlets of each sampler must be no less than one meter apart from each other, and no more than four meters apart. -
Page 22: Fall Hazard And Security Cautions
4.2 Fall Hazard and Security Cautions If the E-BAM is to be installed more than three meters above ground level, then the tripod legs must be bolted down to prevent the unit from falling to the ground. An accidental fall of more than three meters may compromise the containment of the radioactive source and the unit will need to be returned to the factory for testing. -
Page 23: Smoke And Ash Monitoring
If the solar array is not large enough, the batteries will eventually become depleted and the E-BAM will shut down. The size of the solar array will vary depending on the Peak Sun-Hour (PSH) rating of the sample location. PSH ratings are usually based on worst... - Page 24 E-BAM can result. A solar array for the E-BAM tends to end up being fairly large, heavy, and expensive. It is usually easiest and cheapest to contact your local solar shop for help in building the array. You may also contact a service representative at Met One for assistance.
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Page 25: Field Calibrations And Flow Checks
The FIELD CALIBRATION menu 5.1 Leak Checks and Nozzle/Vane Cleaning The E-BAM flow system must be checked for leaks before any flow calibrations are performed. Scroll to the PUMP TEST line and press the MENU/SELECT key to enter the leak test and pump test menu. - Page 26 Leak checks should be performed at least monthly and whenever the filter tape is changed. Almost all air leaks in the E-BAM system occur where the nozzle contacts the filter tape. The E-BAM has no way of automatically detecting a leak at this interface! This is because the airflow sensor is located downstream of the filter tape.
- Page 27 1. It is advisable to perform an as-found leak check before cleaning the nozzle, in order to validate past data as being leak-free. 2. If the nozzle is down, raise it by entering the LOAD TAPE screen in the main E-BAM menu. The nozzle will automatically raise.
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Page 28: Ambient Temperature Sensor Audit
After you have entered the correct temperature using the arrow keys, press the CALIBRATE key to correct the E-BAM sensor reading. The E-BAM and REF parameters should now match. Press the ESC key when finished. -
Page 29: Flow Audits And Calibrations
CALIBRATE option when the SETPOINT is set to 16.7. Use the arrow keys to select the 17.5 lpm setpoint first. The E-BAM will automatically turn the pump on and regulate the flow until the internal flow sensor output matches the 17.5 lpm setpoint. It may take a moment for the flow to regulate to the setpoint. - Page 30 E-BAM flow reading to your traceable standard and record the results. If the audit device flow and the E-BAM flow differ by 4% (about 0.67 lpm) or more, then a full flow calibration must be performed. Most agencies adopt tighter standards. Met One recommends that the flow be maintained within ±0.2 lpm, which is well within the units capabilities.
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Page 31: Filter Rh Sensor Audit
Important Note: It is often difficult to calibrate the sensor if the E-BAM is warm, as the heating of the unit will reduce the sample RH (as it should) making it difficult to compare the E-BAM filter RH reading to an ambient RH traceable standard reading. -
Page 32: Pump Tests
If the sensor is to be calibrated, it is best to do it when the E-BAM is cold (equilibrated to ambient) and the nozzle is lifted up. It is recommended to leave the sensor at the factory default calibration. The E-BAM filter temperature sensor very rarely fails. -
Page 33: Analog Output Audits
In the HIGH mode, the analog output is forced to 0.990 volts. Measure the actual voltage output of the E-BAM, and if it does not match, the ADJUST field can be set (using the arrow keys) to adjust the voltage up or down by as much as 0.100 volts. In the LOW mode, the analog output is forced to 0.010 volts. -
Page 34: Span Membrane Tests
Scroll to the MEMBRANE TEST line and press the MENU/SELECT key to enter the membrane test menu. The E-BAM will ask to start the test as shown below. Press the START key to begin the test. The unit will advance the filter tape and begin a 4-minute blank zero count. Then the unit will raise the nozzle and prompt you to enter the insert the zero membrane. - Page 35 CANCEL CANCEL This is a pass/fail test in which the E-BAM will compare the measured mass of the span membrane to the expected mass (ABS) for that exact foil which has been programmed into the E-BAM memory. See Section 7.12. If the measured and expected values are within 5%, the test will pass. If the values are outside of 5%, a failure will be generated.
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Page 36: The E-Bam Measurement Cycle
As soon as the new hour starts, the E-BAM stores the previous hourly concentration to the data array, and starts a new hourly measurement. -
Page 37: The Real-Time Average Measurement Cycle
6.2 The Real-Time Average Measurement Cycle The beta source and beta detector are located inside the air path of the E-BAM. This allows the E- BAM to simultaneously measure the beta attenuation of the particulate as it is being deposited on the filter tape, resulting in a quasi real-time output. - Page 38 At the end of minute five, the E-BAM will have the two required four minute rolling averages, but they will be overlapping. The I...
- Page 39 12-15 normal Avg min 5-14 13-16 normal Avg min 5-14 14-17 normal Avg min 5-14 7-10 15-18 normal Avg min 5-14 8-12 16-19 normal Avg min 5-14 9-13 17-20 normal Avg min 5-14 E-BAM-9800 Operation Manual Rev M Page 39...
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Page 40: Comparing The Hourly And Real-Time Values
6.3 Comparing the Hourly and Real-Time Values The chart below shows data collected by an E-BAM over a two day period. The unit is set for a real- time average of 5 minutes. The 5 minute data predicts the hourly values, and is very responsive to sudden spikes in concentration, but the noise band (and thus the detection limit) of the 5 minute data is high enough to make it generally unsuitable in concentrations below about 40 micrograms. -
Page 41: Setup Menu Descriptions
The settings will not be lost if the unit is unplugged or powered down. The SETUP menu is located in the main E-BAM menu. Use the arrow keys to select the SETUP option in the main menu, then press the MENU/SELECT key to enter the setup menu. Note: Some of these setup screens are the same ones that the E-BAM automatically prompts you to verify each time you power the unit up. -
Page 42: The Machine Type Pm /Pm Setup Screen
E-BAM hourly measurement taken over the same time period. The shorter the REALTIME AVG is set, the faster the E-BAM memory is filled up. If the real- time average is set to 60 minutes, the memory will last 182 days before the oldest data is overwritten. -
Page 43: The Analog Output Setup Screen
7.5 The Serial Port Setup Screen Next is the serial port setup screen. This is used to select the baud rate for the E-BAM digital RS- 232 serial port. The E-BAM baud rate can be set to 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400 baud. -
Page 44: The Rh Control Setup Screen
CONTINUE RH SETPOINT is the threshold at which the E-BAM turns on the inlet heater to limit the RH of the sample air. This can be set from 0 to 100%. When the sample RH exceeds this setpoint, the inlet heater turns on to drive down the humidity through mild 15 watt heating. -
Page 45: The Ambient Rh Sensor Setup Screen
E-BAM will attempt to validate the sensor by monitoring its output voltage. Note: If an RH sensor is not connected to the input, but the setting is set to YES, then the E-BAM will measure the floating input voltage, assume the sensor has failed, and generate an alarm. -
Page 46: The Pump Protection Setup Screen
7.9 The Pump Protection Setup Screen The next setup screen is the pump protection setting. If this field is set to ON, the E-BAM will automatically turn the pump off and shut down any time the ambient temperature exceeds 48 degrees C. -
Page 47: The Standard Temperature Setup Screen
This is sometimes called the “ABS” value. This is the end of the SETUP menu system. The E-BAM will exit to the main menu when finished. -
Page 48: Maintenance And Troubleshooting
E-BAM attempts to start a new sample cycle. The errors appear on the E-BAM display, and are also stored in the digital error log as a detailed record of the time and type of the error. In addition, errors are stored in the digital data log as a code number in the data array, and are reported on the analog concentration output as a full-scale voltage. - Page 49 This alarm indicates that the flow system failed one of two criteria during operation. The FLOW FAIL regulation alarm will be generated if the E-BAM flow is more than 0.4 lpm out of regulation for more than 5 minutes. If the 5 minute rolling average of the flow (checked once per FLOW OUT OF minute) is less than 5.0 lpm or greater the 19.6 lpm, the failure alarm will be generated and...
- Page 50 The following are some examples of how the alarm and error records appear when shown on the main E-BAM display as a current error or, when viewed as a historical error record in the user interface system: 16-DEC-2008 16:25:20 16-DEC-2008...
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Page 51: Contact Closure Alarm Relay Output
E-BAM has encountered an unspecified error. The relay contacts are located on the main E-BAM power input connector (pins 3 and 4), so you will need a special power cable which has a break-out for the relay wires, as the standard power cables do not. The two relay contacts are normally closed (shorted together) when the E-BAM is operating correctly, and will open up whenever an error occurs. -
Page 52: Basic Problem And Cause/Solution Table
This usually indicates that the air pump is losing vacuum capacity due to wear. The internal DC pump in the E-BAM will need to be replaced after about 6 to 9 months of continuous use. The internal DC pump cannot be rebuilt. - Page 53 If the analog output of the E-BAM is being logged by an external datalogger, make SURE the logger’s scaling of the E-BAM output is correct! A 0.000 volt analog output on the E-BAM equals 0.000mg. There is no -0.005 or -0.015 offset value in the E-BAM analog output, unlike the BAM-1020! See Section 7.4.
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Page 54: Met One Suggested Periodic Maintenance
E-BAM is powered off. The lithium battery may simply have become unplugged from the 3210 board. The battery is a black module inside the E-BAM which is retained with a strip of hook- and-loop material. It has a two-wire harness. ... -
Page 55: Dc Pump Replacement
DC Pump Replacement The internal DC dual diaphragm pump used in the standard version of the E-BAM is one of the smallest and lowest power consuming models available which can still maintain a 16.7 lpm flow rate under load. The pump is rated for at least 4000 hours of operation under normal conditions. The typical area of wear on these pumps are the motor brushes and motor bearings. -
Page 56: Cleaning The Inside Of The Sample Nozzle Assembly
Pump Replacement Diagrams Cleaning the Inside of the Sample Nozzle Assembly The inside of the E-BAM sample nozzle should be periodically cleaned to remove any particulate which may have settled on the inside surfaces. This cleaning prevents any buildup of particulate which could result in artifacts falling out of the nozzle and onto the tape, causing undesired positive concentration spikes. -
Page 57: Cleaning The Beta Detector Assembly
Cleaning the Beta Detector Assembly The beta particle detector in the E-BAM is located directly underneath the filter tape support vane. The entry window of the detector can occasionally become covered with a layer of fine white filter tape debris (glass fibers) or particulate deposits. - Page 58 12. Replace the E-BAM transport assembly into the enclosure and fasten with the screws. 13. Power up the E-BAM and perform allow it to warm up for at least one hour. Perform a span membrane test. The unit should pass the test if the detector is working properly. If difficulty is encountered contact the Met One Service Department.
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Page 59: Data Retrieval And Communications
The E-BAM settings are 9600 Baud, 8 data bit, no parity, one stop bit. The baud rate is a default setting which may be changed to a faster value. The other communications settings are fixed. E-BAM-9800 Operation Manual Rev M... -
Page 60: Comet™ Data Retrieval Software
Comet™ Data Retrieval Software The E-BAM is supplied with a CD containing a free copy of the Comet™ program, which is a simple Windows-based communications terminal program developed by Met One Instruments. This is the recommended method for all E-BAM data retrieval, since Comet allows the user to easily download the data logs, error logs, and settings (EEPROM) files from the E-BAM without the user having to know any of the underlying communications protocols. -
Page 61: Automet" Data Retrieval Commands Through The Serial Port
The report starts with a printout of the time and date of the download and the serial number of the E-BAM. Then a data header row is printed which defines each of the columns in the data field. The column are separated by commas to make it easy to import the data into a spreadsheet, or to parse out data fields in an automatic data collection system. - Page 62 This command saves time by not retrieving old data that has already been downloaded before. If a “4” command is sent (last data record), then the data response from the E-BAM is formatted the same, except that only the latest data record in memory is printed as shown below:...
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Page 63: Advanced Communications - Escape Commands
1 stop bit. Use the terminal program’s internal dialing command sequence to dial up the E-BAM. Verify the connection to the unit by pressing the <Enter> key until the command prompt asterisk (*) appears. If not, verify the cabling and communications settings. Once connected, the access to the E-BAM is the same command driven interface as used for the direct PC connection. -
Page 64: Flash Firmware Upgrades
RS-232 COMM port. Install the Firmware Update Utility program onto the computer by following the prompts after the CD is inserted. 3. Connect the E-BAM serial port to the computer COMM port (usually COMM 1) with the serial cable that came with the E-BAM. -
Page 65: Accessories And Parts
Zero Filter Calibration Kit, with valve BX-302 Same as BX-305 but with 0.2 micron filter Volumetric Flow Calibration Kit (BGI deltaCal™) BX-307 Flow, Temp, and Pressure Reference Standards Met One recommended flow audit meter E-BAM-9800 Operation Manual Rev M Page 65... - Page 66 Inlet Tube Extension Kit, 4 foot, with coupler and tube BX-822 Inlet Tube Extension Kit, 8 foot, with coupler and tube BX-823 Standard Inlet Tube, E-BAM, Aluminum, 9 inch 9187 Inlet Tube, Custom Length 8112-X Dash number is length in feet, 8’ max per tube...
- Page 67 Gear Motor Assembly 8968 Used for nozzle and tape reel Wall Mount Bracket for E-BAM. CALL Mounts the E-BAM enclosure to a mast, post, wall, or other vertical surface. Power Supply, E-BAM, 120/220V AC input, 12V DC EX-121 output, Weatherproof...
- Page 68 82148 E-BAM Phone Line Modem Kit EX-996 E-BAM Cell Modem Kit EX-911 Power Cable, E-BAM to Battery 9638 Power Cable, E-BAM to Battery, with relay output 9638-1 wires Serial Cable, E-BAM 9321 Serial Cable, E-BAM, with analog output wires 9321-1...
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Page 69: Theory Of Operation And Mathematical Analysis
A. Once x, the mass density of collected particles, has been determined, it is possible to calculate the ambient concentration of particulate matter (g/m with Equation 3. E-BAM-9800 Operation Manual Rev M Page 69... - Page 70 Generally, this relative error is on the order of 2-3%, with judicious selection of the calibrated value of . E-BAM-9800 Operation Manual Rev M Page 70...
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Page 71: Converting Data Between Epa Standard And Actual Conditions
The actual average temperature for the hour in question was 303 and the average pressure was 720 mmHg * (P ) * (T = 27 * (720/760) * (298/303) = 27 * 0.9474 * 0.9835 = 25.1 g E-BAM-9800 Operation Manual Rev M Page 71... -
Page 72: Special E-Bam Configurations
This connection provides signals to the pump box so that the E-BAM can turn the pump on and off and drive the flow controller motor. Plug the Pump Box Control cable into the extra connector on the E-BAM. -
Page 73: Airsis Satellite Uplink Option
Another variation of the external pump box option is the E-BAM-5LPM model. This is a special E- BAM that runs at 5.0 liters per minute with a special PM10 inlet configuration. The external pump box used for this option contains a special pump and flow controller for the lower flow rate, and the E-BAM has special firmware to allow flow regulation and calibration at 5 LPM. -
Page 74: Bam Audit Sheet
RH Setpoint Std Cond Temp Realtime Avg Delta-T Setpoint Machine Type RH Control Analog FS Flow Setpoint Last 6 Errors in E-BAM Error Log Error Date Time Error Date Time Audit Notes: E-BAM-9800 Operation Manual Rev M Page 74... - Page 75 OPERATOR NOTES: E-BAM-9800 Operation Manual Rev M Page 75...
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