Met One Instruments BAM 1020 Operation Manual
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Met One Instruments BAM 1020 Operation Manual

Particulate monitor; bam-1020-9800 rev g
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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
BAM-1020 Particulate Monitor Operation Manual - ©
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 express written permission of Met One Instruments, Inc.
B
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BAM-1020-9800
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Copyright 2008 Met One Instruments, Inc. All Rights Reserved

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Summary of Contents for Met One Instruments BAM 1020

  • 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 express written permission of Met One Instruments, Inc.

  • Page 2: Table Of Contents

    Table of Contents 1 INTRODUCTION 1.1 About This Manual ..................... 4 1.2 Technical Service....................... 4 1.3 BAM: Beta Attenuation Monitor .................. 4 1.4 Beta Radiation Safety Statement ................5 1.5 Model BAM-1020 PM USEPA Equivalent Method........... 5 1.6 Model BAM-1020 PM USEPA Equivalent Method ..........
  • Page 3 6.5 ERRORS Screen ..................... 45 6.6 PASSWORD Screen....................48 6.7 INTERFACE Screen ....................48 6.8 SENSOR Screen...................... 48 6.9 HEATER Screen ...................... 50 7 MAINTENANCE, DIAGNOSTICS and TROUBLESHOOTING 7.1 Met One Suggested Periodic Maintenance .............. 52 7.2 Audit Sheet and Test Records ................. 53 7.3 Self-Test Feature .....................

  • Page 4: Introduction

    1.3 BAM: ttenuation onitor The Met One Instruments model BAM-1020 automatically measures and records airborne particulate concentration levels using the principle of beta ray attenuation. This method provides a simple determination of concentration in units of milligrams or micrograms of particulate per cubic meter of air.

  • Page 5: Beta Radiation Safety Statement

    Concentration Limit” as defined in 10 CFR Section 30.70 – Schedule A. The owner of a BAM- 1020 is not required to obtain any license in the United States to own or operate the unit. The owner of a BAM-1020 may elect to return the entire unit to Met One Instruments for recycling of the C source when the unit has reached the end of its service life, although the owner is under no obligation to do so.

  • Page 6: Model Bam-1020 Pm Usepa Equivalent Method

    1.6 Model BAM-1020 PM USEPA Equivalent Method The Met One Instruments, Inc. Model BAM-1020 Beta Attenuation Mass Monitor - PM Configuration, is designated as an equivalent method for PM monitoring in accordance with 40 CFR Part 53 by the United States Environmental Protection Agency as of March 12, 2008.

  • Page 7: Bam-1020 Specifications

    1.7 BAM-1020 Specifications PARAMETER SPECIFICATION Measurement Principle: Particulate Concentration by Beta Attenuation. US-EPA Existing : EPA EQPM-0798-122 Designations: : Class III EPA EQPM-0308-170 (0 - 1000 µg/m Standard Range: 0 - 1.000 mg/m Optional Ranges: 0 - 0.100, 0.200, 0.250, 0.500, 2.000, 5.000, 10.000 mg/m (special applications) Accuracy: Exceeds US-EPA Class III PM...

  • Page 8: Site Selection And Installation

    2.1 Unpacking and Inspection If any damage to the shipment is noticed before unpacking, a claim must be filed with the commercial carrier immediately. Notify Met One Instruments after notification of the commercial carrier. Remove the unit and accessories from the shipping boxes and compare the received items to the packing list.

  • Page 9: Site Selection

    than about 2 degrees C during this time, the concentration measurement can be affected on the order of several micrograms. Met One recommends logging the air temperature inside the enclosure to monitor this effect. The exact temperature is not critical as long as it fluctuates as little as possible during any one hour.

  • Page 10: Mounting Options In A Walk-In Shelter

    • The inlet must be at least 20 meters from the drip line of any overhanging trees. • There must be at least a 270 degree arc of unrestricted airflow around the inlet. The predominant direction of concentration movement during the highest concentration season must be included in the 270 degree arc.

  • Page 11: Installation Instructions In A Walk-In Shelter

    on the inlet tube two inches above the top of the inlet receiver of the BAM-1020. If the BAM unit is to be mounted high in the rack, it may be necessary to make the hole in the top of the rack larger in order to clear the heater diameter. The heater is supplied with an insulation tube cover which may be modified as needed.
  • Page 12 tightening the roof flange seal or the BAM inlet set screws). If the inlet tube is installed straight, then the tube should rotate fairly easily while inserted into the BAM. If it does not rotate, check the inlet tube for vertical alignment or move the BAM slightly. 5.
  • Page 13 Struts BX-801 Roof Flange Enclosure Roof 8” min. clearance BX-827 or 830 3 to 4 feet typical Smart Heater 2” with insulation BAM 1020 3/28/2007 BAM 1020 16:08:29 LAST CONCENTRATION: 0.028 mg/m3 CURRENT FLOW: 16.7 LPM BAM-1020 STATUS: FIRMWARE: 3236-02 3.2.4...
  • Page 14 27” typical Inlet tube 8119 Seal BX-827 or 830 15.5” Smart Heater 2” with insulation Mounting Rack -Total Height- BAM 1020 6.6 ft (2.0 meters) BX-902/903 3/28/2007 BAM 1020 16:08:29 without cyclone LAST CONCENTRATION: 0.028 mg/m3 Environmental CURRENT FLOW: 16.7 LPM...
  • Page 15 5” min. rear clearance 16” 75mm (2.95”) from front face 15mm (0.6”) from center BAM 1020 14.25” 3/28/2007 BAM 1020 16:08:29 12.25” LAST CONCENTRATION: 0.028 mg/m3 CURRENT FLOW: 16.7 LPM STATUS: FIRMWARE: 3236-02 3.2.4 9.25” SETUP OPERATE TEST TAPE 120 VOLTS 3.5”...

  • Page 16: Electrical Connections

    2.6 Electrical Connections Each BAM-1020 is factory configured to run on either 120 or 230 volt AC power. Your shelter must be wired for power to run the BAM, the pump, and any other AC powered devices such as computers, data loggers, other instruments, etc. A good earth-ground connection point near the BAM unit is highly recommended.
  • Page 17 BX-592 AT Sensor Wire Color Terminal Name Yellow or White Channel 6 SIG Black/Shield Channel 6 COM Channel 6 POWER Green Channel 6 ID Additional Met One BX-500 series sensors may be connected to BAM channels 1 through 5 to log various other meteorological parameters. Details on these sensor connections are given in Section 10.2 of this manual.
  • Page 18 TELEMETRY FAULT N.V. SMART HEATER POWER EXTERNAL RESET N.V. EXTERNAL RESET V. POWER TAPE FAULT FLOW FAULT POWER INVALID DATA MAINTENANCE POWER RANGE RANGE OPTION SWITCH 1 2 3 4 SW1 OFF= 0-1V SW1 ON= 0-10V POWER SW2 OFF= 0-16mA PUMP SW2 ON= 4-20mA CONTROL...

  • Page 19: Initial Setup Of Your Bam-1020

    The unit will probably flash an error indicating that there is no filter tape installed. Note: Units running revision 3.1 or earlier firmware will display a slightly different main menu screen. 3/28/2007 BAM 1020 16:08:29 LAST CONCENTRATION: 0.028 mg/m3 CURRENT FLOW: 16.7 LPM...

  • Page 20: Using The Keypad And Display

    When the BAM-1020 is powered up it will display the main (top level) menu on the LCD display. This menu is the starting point for all functions of the BAM-1020 user interface. 3/28/2007 BAM 1020 16:08:29 LAST CONCENTRATION: 0.028 mg/m3 CURRENT FLOW: 16.7 LPM...

  • Page 21: Filter Tape Loading

    Current: This key is a shortcut to the OPERATE > INST screen, used to display the instantaneous data values that are being measured by the BAM-1020. See section 3.12. The F1 key can be used without interrupting a sample cycle. Average: This key is a shortcut to the OPERATE >...

  • Page 22: Self-Test

    7. Unlatch and lower the pinch roller assembly onto the tape. The BAM will not function if the pinch rollers are latched up, and it has no way of automatically lowering the roller assembly! 8. Press the TENSION soft-key in the TAPE menu. The BAM-1020 will set the tape to the correct tension and alert you if there was an error with the process.

  • Page 23: Initial Setup Settings Considerations

    02/08/1999 15:29:30 LATCH: OFF TAPE BREAK: OK CAPSTAN: OK TAPE TENSION: OK NOZZLE DN: OK SHUTTLE: OK NOZZLE UP: OK REF EXTEND: OK FLOW: OK REF WITHDRAW: OK Status: SELF TEST PASSED TENSION SELF TEST EXIT Self-Test Status Screen LATCH: This will show OFF if the photo interrupter senses that the pinch rollers are unlatched as in normal operation.

  • Page 24: Initial Leak Check And Flow Check

    3. Review the FLOW RATE, FLOW TYPE, CONC TYPE, and HEATER CONTROL settings in the SETUP > CALIBRATE menu. 4. Review the scaling of any external sensors in the SETUP > SENSORS menu. 5. Review the Smart Heater control settings in the SETUP > HEATER menu. 3.7 Initial Leak Check and Flow Check Perform a leak check and flow check/calibration as described in Section 5.

  • Page 25: The Operate Screen

    3.10 The OPERATE Screen Press OPERATE soft-key at the main menu to enter operate menu as shown below. This will not interrupt the sample if already running. 11/15/2006 OPERATE MODE 14:13:07 ↑ = ON ↓ = OFF Operation Mode: ON Status: ON NORMAL INST...

  • Page 26: The Instantaneous Screen

    3.12 The INSTANTANEOUS Screen The INST (Instantaneous) screen displays the instantaneous data values that are being measured by the BAM-1020. This screen is useful for monitoring the current reading of any optional sensors that may be connected to the BAM-1020. All values except Conc (concentration) and Qtot (total flow volume) are current.

  • Page 27: The Measurement Cycle

    4 THE MEASUREMENT CYCLE This section describes the measurement and timing cycle of the BAM-1020 instrument. A clear understanding of the measurement is helpful for the effective operation and maintenance of the unit. For advanced information on the underlying theory and mathematics of the measurement see Theory of Operation, Section 11.

  • Page 28: Automatic Span Check During The Cycle

    detector. The BAM begins counting beta particles through this (now dirty) spot of tape for exactly eight minutes (I 4. Minute 58: The BAM-1020 stops counting beta particles through the dirty spot (I The unit uses the I and I counts to calculate the mass of the deposited particulate on the spot, and uses the total volume of air sampled to calculate the concentration of the particulate in milligrams or micrograms per cubic meter of air.

  • Page 29: Sample Period Description

    4.3 Sample Period Description The sample period is the time when the vacuum pump is pulling dust-laden air through the BAM-1020. As the air enters the inlet, it first passes through the external PM head which has a screen to keep out bugs and debris, and uses inertia to separate out and trap particle larger than 10 microns in size.

  • Page 30: Flow System And Flow Calibrations

    5 FLOW SYSTEM and FLOW CALIBRATIONS 5.1 Flow System Diagram The BAM-1020 airflow control system is very simple and effective, consisting of a few rugged components. Proper operation of the flow system is critical if accurate concentration data is to be obtained from the unit.

  • Page 31: Flow Type Descriptions

    5.2 Flow Type Descriptions The BAM-1020 is designed to operate with an airflow rate of 16.7 liters per minute (lpm). This is important, because the particle separators (PM inlets, cyclones, and WINS impactors) require this flow rate in order to properly separate the correct sizes of particles from the air stream.

  • Page 32: Leak Check Procedure

    standard value (default is 25 degrees C), and the barometric pressure is 760mmHg (one atmosphere), regardless of the actual temperature and pressure. NOTE: At low altitudes and moderate temperature, EPA Standard flow will be very close to the actual volumetric flow rate. However, at high altitudes the difference between Standard and Actual flow will be quite significant, due to lower barometric pressure.

  • Page 33: Leak Isolation And Nozzle Seal Methods

    Some agencies choose to adopt tighter tolerances for the leak test, such as requiring a leak value of 0.5 lpm or less after the nozzle and vane are cleaned. Most agencies perform as- found leak checks (before cleaning the nozzle and vane) for data validation purposes, since it is often necessary to invalidate data from a BAM which is found to have a significant leak, all the way back to the last known good leak test.
  • Page 34 Cotton Applicator Nozzle Lip Vane Nozzle Cleaning The figure below shows the difference between good and bad filter tape spots. The tape on the left is from a properly operated BAM-1020 with a clean nozzle and vane. Notice the particulate spots have very crisp edges, are perfectly round, and are evenly distributed. The tape on the right is from a unit which has not been properly maintained.

  • Page 35: Field Calibration Of Flow System - Actual (Volumetric) Flow Mode

    5.6 Field Calibration of Flow System – Actual (Volumetric) Flow Mode Actual (volumetric) flow calibration is very fast and easy. This type of calibration can only be performed on BAM units which have an automatic flow controller and a BX-592 or BX-596 ambient temperature sensor on channel 6.

  • Page 36: Field Calibration Of Flow System - Epa Standard Flow Mode

    Actual flow calibrations in units with older firmware: BAM-1020 units with previous revisions of firmware (prior to Rev 3.0) have a different format in the TEST > FLOW menu, as shown below. These units are flow calibrated in the same way as described above, except that the flow calibration is performed at only a single point of 16.7 lpm, not a multi-point calibration as in new units.

  • Page 37: Field Calibration Of Flow System - Metered Flow Mode

    5.8 Field Calibration of Flow System – Metered Flow Mode Metered flow calibration is only performed on BAM-1020 units which have a hand-operated manual flow valve on the back (mostly older units). Because these units do not have automatic flow control, the calibration procedure is much more complicated. The flow must also be more frequently checked due to changes in ambient conditions, which these type of units cannot compensate for.
  • Page 38 Quick Flow Check and Adjustment for Metered Flow: These steps can be used to do a quick flow check on a Metered Flow BAM with a manual valve while it is in operation. 4. Insert your volumetric flow standard onto the BAM inlet, and allow the BAM flow to stabilize.

  • Page 39: Setup Menu Descriptions

    6 SETUP MENU DESCRIPTIONS The BAM-1020 uses a comprehensive system of setup menus which contain all of the settings and parameters needed to perform the measurement and operation of the unit. Some of these settings are set at factory default values which are correct for most applications, but may be altered by the operator to suit the specific needs of your monitoring program.

  • Page 40: Clock Screen

    CLOCK Screen The SETUP > CLOCK screen allows for the setting of the time and date. Time is a 24-hour clock only. Use the arrow keys to select and increment/decrement the desired field, then press the SAVE soft-key. The BAM-1020 clock may drift as much as a minute or two per month.
  • Page 41 STATION #: This is a station identification number. This number has a range of 00-99, and will be included in the data reports. When used in a network, every BAM-1020 should be given a different station number. Default value is 01. MET SAMPLE: This value is the averaging period for the data logger.

  • Page 42: Calibrate Screen - Critical Information

    to set the OFFSET value to 0.000 to avoid confusion, at the expense of not being able to see the true zero noise floor of the unit. This value also affects the analog output, so that 0 to 1.000 volts equals -0.015 to 0.985 mg, instead of 0.000 to 1.000 mg.
  • Page 43 FLOW RATE: This sets the air flow rate for the BAM-1020 sample period. The BAM will continuously regulate the flow to this value (except manual valve models). The flow rate is almost always set for 16.7 liters per minute, as this is required for all PM and PM monitoring.

  • Page 44: Extra1 Screen

    Warning: This is a unit-specific calibration value which may significantly affect the accuracy of the unit. Never change this value without specific instruction from Met One Instruments. BKGD: The BACKGROUND value is the factory-set zero correction (slope offset) for the BAM-1020 concentration.

  • Page 45: Errors Screen

    Membrane OFF Delay. Hysteresis timer, range is 0.000 to 5.000 seconds. Don’t change this value unless instructed to do so by Met One. Membrane Time Out. The time the unit allows for the membrane assembly to move before generating an error. Range is 10.00 to 20.00 seconds. Don’t change this value unless instructed to do so by Met One.
  • Page 46 MAINTENANCE: This is a user-set data flag which indicates that calibration or testing was performed during the flagged hour. The “M” flag may also be forced ON in the SETUP > INTERFACE menu by setting “Force Maint” to ON, or in the OPERATE > INST screen by pressing the TOGGLE FLG button.
  • Page 47 The “F” error is also used to indicate if the ambient temperature or barometric pressure sensor has failed or is incorrectly connected (only if the BAM is set for ACTUAL flow or concentration reporting). This applies to auto ID sensors BX-592 and BX-596, the internal filter pressure sensor, and CARB style temperature sensors.

  • Page 48: Password Screen

    PASSWORD Screen The SETUP > PASSWORD screen allows the program administrator to change the password required to enter many of the SETUP menus. The password prevents untrained users from accidentally changing critical settings on the unit. The password can be any 4-key combination of the six function keys, F1 to F6.
  • Page 49 six external sensor inputs in the SETUP > SENSOR menu. There are also two internal channels (I1 concentration and I2 flow volume) which can be viewed but not modified. Met One 500 series meteorological sensors have an Auto ID feature which allows the BAM to automatically recognize the sensor and enter all of the setup parameters for any channel the sensor is attached to.

  • Page 50: Heater Screen

    setup parameters for the channel. AUTO ID mode is used with 500 series sensors, and must be selected in order for the unit to recognize the sensor automatically. NOTE: Any manually set parameters for that channel will be lost when changing to AUTO ID mode. Channel 6 must be set to AUTO ID for PM monitoring with the ambient temperature sensor BX-596.
  • Page 51 using Delta-T control except in special applications, as it overrides the RH control which has a far greater effect on the concentration measurement. Note: Delta-T control must be set to NO for PM FEM monitoring. Delta-T Setpoint: This can be set from 1 to 99 degrees C. If the filter temperature exceeds the ambient temperature by more than this amount, the Smart Heater will turn down to low power mode, regardless of the RH level.

  • Page 52: Maintenance, Diagnostics And Troubleshooting

    MAINTENANCE, DIAGNOSTICS and TROUBLESHOOTING This section provides information for maintaining your BAM-1020, and for performing diagnostic tests if a problem is encountered. If the unit generates errors on the display or in the data array, first check Section 6.5 to identify the error. Many times there is a simple solution.

  • Page 53: Audit Sheet And Test Records

    Audit Sheet and Test Records The back of this manual contains a sample of a BAM-1020 Audit Sheet. This is a test record which can be filled out as calibrations, checks, or audits are performed on the unit. The operator is encouraged to make copies of this sample sheet to use as needed. Met One can ®...
  • Page 54 Problem: The analog output voltage and/or digital concentration reading are full-scale. Cause/Solution: • The unit will force these values full-scale to indicate an error. Download the error log. Whenever the unit is started or interrupted this will happen until the next hour. Problem: The concentration is reading negative values.
  • Page 55 • Check for bad o-rings on the BAM inlet receiver. • Remove the BAM case cover and inspect all air fittings inside the BAM. These are compression fittings, and must be fully inserted to prevent leaks. • Inspect the internal and external flow system for split or cracked air tubing. Problem: The unit over-measures or under-measures concentrations compared to a collocated FRM filter sampler.

  • Page 56: Nozzle Component Replacement

    vary much over several hours, then the BAM data may show repeated values due to lost resolution. Leave the RANGE set to 1.000mg unless very high concentrations are expected. Problem: Frequent “D” membrane density errors. • Cause/Solution: This usually indicates the membrane foil surface is dirty or damaged. It can be cleaned with water rinse.

  • Page 57: Field Bkgd Zero Background Tests

    Field BKGD Zero Background Tests The Background value is a correction offset for the concentration data collected by the BAM- 1020 (see section 6.3 for a description of the BKGD value). This value is factory calibrated for each unit under laboratory conditions, and is typically never changed for PM monitoring.

  • Page 58: Test Menu System

    Test Menu System The following sub-sections provide information for performing diagnostic checks on the BAM- 1020 sub-systems using the TEST menus. Most of these tests will be used for troubleshooting purposes only and are not necessary on properly functioning units. The TEST menu system is accessed by the TEST soft-key from the main menu and is shown below.

  • Page 59: Pump Test Menu

    7.10 PUMP Test Menu The TEST > PUMP screen is very useful to test the pump and nozzle, and to perform leak checks and nozzle cleaning. See section 5.3 for the leak check procedure. Note: The BAM nozzle motor drives the nozzle UP, but the nozzle is lowered by only its spring tension. It is possible for the nozzle to become stuck in the UP position even if the motor is working and no errors are generated.

  • Page 60: Dac Test Menu - Analog Output Test

    FWD: This soft-key will move the filter tape forward amount of the FEED value. BKWD: This soft-key will move the filter tape backward amount of the FEED value. 7.12 DAC Test Menu – Analog Output Test The TEST > DAC screen is used to test the function of the analog concentration output voltage and the DAC (digital-to-analog-converter) electronics.

  • Page 61: Interface Test Menu

    CAL MASS M: This is the calculated calibration mass (m) derived from the two count values, the mass which the unit has just measured for the membrane. An average of several of these values should match the ABS value within 5%. START: This soft-key starts the test cycle.

  • Page 62: Heater Test Menu

    IDLER: This screen tests the photo sensor which monitors the position of the right-side tape tensioner (the spring-loaded tape roller on the right). When the tensioner is in its left position under its spring tension, both photo sensors S6 and S1 should be OFF. If the tensioner is moved to the middle of its travel, photo sensor S1 should be ON and S6 OFF.

  • Page 63: Rh Test Menu - Filter Humidity Sensor

    FILTER TEMPERATURE CALIBRATION BAM: 26.1 C REFERENCE: 26.1 C CALIBRATE RESET Exit The FILTER-T Test Screen 7.19 RH Test Menu – Filter Humidity Sensor The TEST > RH screen is used to calibrate the filter relative humidity sensor located in the air stream beneath the filter tape.

  • Page 64: External Datalogger Interface System

    8 EXTERNAL DATALOGGER INTERFACE SYSTEM This section describes the configuration of the BAM-1020 to work with a separate, external datalogger. The BAM-1020 provides an analog concentration output voltage, as well as an array of relay inputs and outputs. These allow the BAM-1020 to function as a sensor in a larger array of data collection instruments.

  • Page 65: Early Cycle Mode Description

    Early Cycle Mode Description During a standard BAM-1020 measurement cycle, the unit waits for the beginning of the new hour before it sets the analog output to represent the just-finished hour’s concentration. However, some types of dataloggers (such as ESC) must have the concentration value available before the new hour starts, or the data will be stored in the wrong hour.

  • Page 66: Telemetry And Error Relays

    date and time of the reset attempt. If the I count is in progress, or the cycle is past the I count, then the measurement cycle is canceled. The error log will contain the date and time of the reset. A canceled cycle will also force the analog output to the full-scale values (1.000 volts in standard mode, or 0.920 volts in early mode).
  • Page 67 Sensor Inputs Analog Output Selection Switches BAM-1020 Back Panel Relay Connections 1. TELEM FAULT N.V. Telemetry Fault Non-Voltage. This input can be used to signal the BAM-1020 that the external telemetry system (datalogger) is not operational. This is a contact-closure input which must be activated for a minimum of 2-seconds.

  • Page 68: Digital Datalogger Interfacing With The Bam-1020

    3. EXT RESET V External Reset Voltage. This input is the same as above except the input is activated by a voltage logic level instead of a contact-closure. Max 15mA @ 15V or 5mA @ 5V DC. Five volt logic is typically used for this input. 4.
  • Page 69 The alternative is to program the digital datalogger to send the BAM-1020 the appropriate commands to retrieve data, just like you would when downloading the data with a computer as described in Section 9.4. Typically, the BAM would be sent the appropriate commands to respond with CSV files 6,3 (new data since last download) or 6,4 (last hourly data record only).

  • Page 70: Rs-232 Serial Communications - Data Retrieval

    9 RS-232 SERIAL COMMUNICATIONS – DATA RETRIEVAL This section describes the methods used to retrieve digital data files through the RS-232 serial communications system on the BAM-1020. The unit has a two-way serial port which may be used with a computer, laptop, modem, digital datalogger, or data transfer module. There is also a configurable output-only serial printer port.

  • Page 71: Met One Communications Software

    Met One Communications Software The BAM-1020 is compatible with several communications software programs available from Met One Instruments: ® MicroMet Plus: A powerful and comprehensive data logging program for meteorological applications which is configurable to collect and manage all data from the BAM-1020.

  • Page 72: System Menu File Descriptions

    Terminal Window showing BAM-1020 menu ® ® Windows 95 and HyperTerminal are registered trademarks of their respective corporations. System Menu File Descriptions Once a serial connection between the computer and the BAM-1020 has been established as shown above, you will have access to the main BAM-1020 System Menu. Each number 0-9 represents a different data file you can download from the unit.
  • Page 73 Report for 04/22/2005 - Day 112 > BAM 1020 < Station ID: 1 Channel Sensor Conc Qtot WS Units mg/m3 m3 ===================================================== 01:00 ------------ 0.010 0.834 019.6 0.012 000.3 00017 132.2 008.7 02:00 ------------ 0.009 0.834 019.9 0.012 000.3 00018 132.1 007.4 03:00 ------------ 0.011 0.834 019.8 0.012 000.3 00018 132.1 006.5...
  • Page 74 BAM 1020 Settings Report 06/07/2007 14:19:45 Station ID, 1 Firmware, 3236-02 3.2.5 K, 01.000 BKGD, 00.000 usw, 00.301 ABS, 00.805 Range, 1.000 Offset, -0.015 Clamp, -0.015 Conc Units, mg/m3 Conc Type, ACTUAL Cv, 01.000 Qo, 00.000 Flow Type, ACTUAL Flow Setpt, 0016.7 Std Temp, 25 Temp Mult, 1.0000...
  • Page 75 File 5: Display Date / Time This file will show the date, time and serial number of the BAM-1020. File 6: CSV Type Report This command will give you three Comma-Separated-Value options which you can select by sending the appropriate number below. Each of the data files are the same as above, except the values in each column are separated by commas (,).
  • Page 76 CSV Type Reports 2 - Display All Data 3 - Display New Data 4 - Display Last Data 5 - Display All Flow Stats 6 - Display New Flow Stats 7 - Display All 5-Min Flow 8 - Display New 5-Min Flow >4 - Display CSV Data Station, 5 Time,Conc(mg/m3),Qtot(m3),WS(MPS),WD(DEG),BP(mm),RH(%),Delta(C),AT(C),E,U,M,I,L,R,N,F,P,D,C,T...
  • Page 77 The flow statistics fields available in the CSV menu are described below. These files are not available except on BAM units configured as FEM PM units. A BX-596 sensor is required. Field Description Start Start time of BAM sample period. Elapsed Elapsed BAM sample time.

  • Page 78: Printer Output Port

    Command Function Command Printer Port Output Configuration. This sets what is output on the 2 serial port. Sending this command will prompt the following sub-menu: 1 – Printer Port (default) 2 – Standard Diagnostic Port 3 – Factory Diagnostic Port 4 –...

  • Page 79: Modem Option

    BAM-1020 may need to be set to REVERSE polarity for communication using the modem. If you are using one of the Met One Instruments data acquisition programs such as MicroMet Plus or MicroMet AQ, you need only enter the telephone number of the site in the system setup menu of the program.

  • Page 80: Accessories And Parts

    10 ACCESSORIES and PARTS 10.1 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 Service department. Some of these parts require technical skills or special considerations before use or installation. Description Part Number Graphic...
  • Page 81 Pumps and Pump Parts BX-126 Pump, Medo, 115 VAC, 50/60 Hz, Low Noise BX-127 Pump, Medo, 230 VAC, 50/60 Hz, Low Noise BX-123 Pump, Gast, Rotary Vane, 100 VAC, 60 Hz BX-121 Pump, Gast, Rotary Vane, 115 VAC, 50/60 Hz BX-122 Pump, Gast, Rotary Vane, 230 VAC, 50 Hz BX-124...
  • Page 82 3260-1 Circuit Board, Rear Panel Interconnect 590811 Fuse, BAM-1020, 3.15A, 250V, 5x20mm, 2 Req’d 8105-1 Motor, with gear box, 4 RPM 8106-1 Motor, with gear box, 10 RPM BX-115 Power Supply, 115 VAC, 60 Hz BX-116 Power Supply, 115 VAC, 50 Hz BX-230 Power Supply, 230 VAC, 60 Hz BX-231...
  • Page 83 BX-827 Smart Heater Option, 115 VAC BX-830 Smart Heater Option, 230 VAC 9307 Smart Heater Upgrade Kit, 115VAC 9308 Smart Heater Upgrade Kit, 220VAC BX-344 BAM Inlet Cleaning Kit Includes pull-rope, tube brush, microfiber rags, cleaning brushes, o-ring grease, cotton applicators. For cleaning inlet tube and PM10, PM2.5 inlets.

  • Page 84: Series 500 Sensor Configurations

    10.2 Series 500 Sensor Configurations The BAM-1020 has six channels of inputs available on the back of the unit for data logging external sensors. The 500 Series sensors are a set of meteorological sensors designed for direct compatibility with these channels. The sensors each have an auto-identification (ID) signal wire with a voltage unique to that particular type of sensor.
  • Page 85 POWER BAM-1020 Back Panel Sensor Input Terminal 500 Series Sensor Wiring Connections for BAM-1020 BX-590 Wind Direction Sensor BX-591 Wind Speed Sensor Terminal Block Cable Wire Color Terminal Block Cable Wire Color Yellow Yellow Black/Shield Black/Shield POWER POWER Green Green BX-592 Ambient Temp Sensor BX-593 Relative Humidity Sensor Terminal Block...

  • Page 86: Theory Of Operation And Mathematical Analysis

    11 THEORY OF OPERATION and MATHEMATICAL ANALYSIS When the high-energy electrons emanating from the radioactive decay of C (carbon-14) interact with nearby matter they loose their energy and, in some cases, are absorbed by the matter. These high-energy electrons emitted through radioactive decay are known as beta rays and the process is known as beta-ray attenuation.
  • Page 87 Equation 3 ⎛ ⎞ µg A(cm ⎜ ⎟ ⎛ ⎞ ⎝ ⎠ ⎛ liter ⎞ ⎜ ⎜ ⎟ ⎟ ⎜ ⎟ ∆t(min)µ ⎝ ⎠ ⎝ ⎠ In Equation 3, c is the ambient particulate concentration (µg/m ), A is the cross sectional area on the tape over which dust is being deposited (cm ), Q is the rate at which particulate matter is being collected on the filter tape (liters/minute), and ∆t is the sampling time (minutes).

  • Page 88: Converting Data Between Epa Standard And Actual Conditions

    The relative error due to the uncertainly in the absorption cross section ( σ / µ ), is due to its µ slight variation as a function of the chemical composition of the matter being monitored. Generally, this relative error is on the order of ± 2-3%, with judicious selection of the calibrated value of µ...

  • Page 89: Bam-1020 Audit Sheet Sample

    BAM-1020 Audit Sheet Model: BAM-1020 Serial Number: Audit Date: Audited By: Flow Audits Model: Serial No: Calibration Date: Flow Reference Standard Used: Model: Serial No: Calibration Date: Temperature Standard Used: Model: Serial No: Calibration Date: Barometric Pressure Standard Used: as found: as left: Leak Check Value: Ref.
  • Page 90 OPERATOR NOTES: Page 90 BAM-1020-9800 REV G...

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