Page 1 Copyright 2016 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
2.3 Site Selection and Inlet Positioning Criteria ............... 9 2.4 Mounting Options in a Walk-In Shelter ............... 9 2.5 BAM 1020 Installation Instructions ................10 2.6 BAM 1020 Power and Electrical Service ..............19 3 INITIAL SETUP OF YOUR BAM 1020 3.1 Power Up ......................... 20 3.2 Warm-up Period .......................
Page 3 7.1 Met One Recommended Periodic Maintenance Table ..........54 7.2 BAM 1020 Error and Alarm Descriptions ..............55 7.3 Comparison of BAM 1020 Data to Integrated Filter Sampler Data ......59 7.4 Power Up Problems and Electrical Safety Considerations ........60 7.5 Basic Problem and Cause/Solution Table ..............
Page 4: Introduction
BAM 1020. Extensively corrected, reorganized, and updated all March 2007 sections. Applies to all BAM 1020 units of all vintages. All BAM 1020 units using revision 3.0 or later firmware must have a Rev F or later manual.
Page 5: Bam: Beta Attenuation Monitor
1600 NW Washington Blvd. Grants Pass, OR 97526 All BAM 1020 monitors have a serial number on the label on the back panel, embossed on the two metal NRC tags, and printed on the calibration certificate. This number is needed if you contact the technical service department to request information about repairs or updates for your BAM 1020.
Page 6: Bam 1020 Us-Epa Configurations
BGI/Mesa Labs Cyclones) 10-2.5 US-EPA designated methods using the BAM 1020 are modified from time to time in order to reflect hardware or software improvements. These modifications do not impact previously designated configurations of the BAM 1020 but may provide the end user with a product upgrade path that will allow the monitor to continue to be operated as a US-EPA designated method.
Page 7: Bam 1020 Specifications
24.5 kg (54 lbs) without external accessories. H x W x D = 31cm x 43cm x 40cm (12.25” x 17” x 16”). Unit Dimensions: Specifications may be subject to change without notice. BAM 1020-9800 Manual Rev W.docx Page 7...
Page 8: Site Selection And Installation
1020 on a test bench if desired. The BAM 1020 is shipped with one or two white foam rings and a white plastic shim inside the front of the BAM 1020, which prevent the moving parts of the tape control assembly from being damaged during transit.
Page 9: Site Selection And Inlet Positioning Criteria
2.4 Mounting Options in a Walk-In Shelter When the BAM 1020 is to be located in a walk-in shelter, it may be installed in either an equipment rack or on a bench top. Take the following into account when planning the mounting: •...
Page 10: Bam 1020 Installation Instructions
Note: The inlet heater installs onto the inlet tube two inches above the top of the inlet receiver of the BAM 1020. If the BAM 1020 is to be mounted in a rack, it will be necessary to leave extra room above the BAM 1020 in the rack for the heater, or to make the hole in the top of the rack larger in order to clear the heater diameter.
Page 11 BX-830 smart inlet heater (used on most BAM 1020 monitors) must be installed onto the tube. Lift the inlet tube out of the top of the BAM 1020, and pass the tube through the hole in the heater body (the cable end is the bottom). Then re-insert the inlet tube into the BAM.
Page 12 Connect the cable to the terminals on the back of the BAM 1020 as follows. Additional optional Met One auto ID sensors may be connected to channels 1 through 5 to log other meteorological parameters.
Page 13 25 feet away if desired. It may be preferable to locate the pump so that noise is minimized if the BAM 1020 is in an area where personnel are present. If the pump is to be enclosed, ensure that it will not overheat.
Page 14 Information about this is also found in Section 8. Met One can also supply additional technical bulletins on the subject. The BAM 1020 has a variety of other telemetry I/O relays, error relays, and serial data connections located on the back of the BAM 1020 as shown below. These items are described in Section 8 and Section 9 of this manual.
Page 15 3 to 4 feet typical Smart Heater 2” with insulation BAM 1020 BAM-1020 With Medo vacuum pump or equivalent Mounting MET ONE INSTRUMENTS Bench or Rack Typical BAM-1020 Installation in a walk-in shelter BAM 1020-9800 Manual Rev W.docx Page 15...
Page 16 6.6 ft (2.0 meters) BX-902 or 903 without cyclone Environmental Enclosure 7.0 ft (2.1 meters) with cyclone MET ONE INSTRUMENTS BX-126 Vacuum Pump or equivalent Typical BAM-1020 Installation in a BX-902 mini enclosure BAM 1020-9800 Manual Rev W.docx Page 16...
Page 17 BAM “) 13/16 71mm (2 from front of rack 14mm (9/16”) from center BAM 1020 14.25” 12.25” 9.25” 120 VOLTS 3.5” MET ONE INSTRUMENTS FRONT BACK 17” 19” BAM-1020 mounting dimensions BAM 1020-9800 Manual Rev W.docx Page 17...
Page 18 POWER FAIL COMMON REPORT ETHERNET POWER SIGNAL 1 VOLTAGE POLARITY OUTPUT C1 NORMAL COMMON C2 REVERSE REPORT SIGNAL 2 SIGNAL CHASSIS GROUNDS COMMON COMMON POWER CURRENT COM 3 OUTPUT BAM-1020 Rear Panel Connections BAM 1020-9800 Manual Rev W.docx Page 18...
Page 19: Bam 1020 Power And Electrical Service
2.6 BAM 1020 Power and Electrical Service The BAM 1020 uses internal 120V AC motors for the tape control system. The power supply is factory-wired to run on either 110-120V or 220-240V, and either 50Hz or 60Hz. The external vacuum pump and inlet heater are also AC powered and voltage-specific, and should match the voltage setting of the BAM 1020.
Page 20: Initial Setup Of Your Bam 1020
3.3 The Main Menu and Using the Keypad and Display When the BAM 1020 is powered up it will display the main menu (top level menu) on the LCD display. This menu is the starting point for all functions of the BAM 1020 user interface. Note: The main menu will have a slightly different layout on BAM 1020 units configured in the dual- unit PM-coarse configuration.
Page 21 BAM 1020. See section 3.12. F2 “Average”: This key is a shortcut to the OPERATE > AVERAGE screen, used to display the latest average of the data recorded by the BAM 1020. See Section 3.12. BAM 1020-9800 Manual Rev W.docx...
Page 22: Filter Tape Loading
3.4 Filter Tape Loading A roll of Met One glass fiber filter tape must be loaded into the BAM 1020 for sampling. A roll of tape will last more than 60 days under normal operation. It is important to have spare rolls available to avoid data interruptions.
Page 23: Self-Test
The self-test feature is located in the TAPE menu. Press the SELF TEST soft-key to start the test. The tests will take a couple of minutes, and the BAM 1020 will display the results of each tested item with an OK or a FAIL tag. If all of the test items are OK, the status will show SELF TEST PASSED as shown in the drawing below.
Page 24: Initial Setup Settings Considerations
Section 6 of this manual and decide if any values need to be changed. At the very least, review the following parameters: 1. Set the system clock in the SETUP > CLOCK menu. The BAM 1020 clock may drift as much as two minutes per month. It is important to check the clock at least once per month to ensure the samples are performed at the correct times.
Page 25: Initial Leak Check And Flow Check
When the preceding setup steps of Section 3 have been completed, exit out to the main top level menu. The “Status” line should display “ON” (no errors). If so, the BAM 1020 will start at the top (beginning) of the next hour, and will continuously operate until commanded to stop.
Page 26: The Operate Menus
The only ways to prevent the BAM 1020 from automatically starting an hourly cycle are to power off the BAM 1020, leave the BAM 1020 in a TEST or SETUP menu, or leave the pinch rollers latched in the UP position.
Page 27: The Instantaneous And Average Operation Screens
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 28: The Measurement Cycle
PM operation. When configured as a US-EPA designated equivalent method for , COUNT TIME must be set to 8 minutes. If you desire to operate the BAM 1020 as a non-designated method for PM monitoring you may set the COUNT TIME to 4, 6, or 10 minutes.
Page 29: Automatic Span Checks During The Cycle
While the vacuum pump is on and pulling air through the filter tape as described above the BAM 1020 performs a span check. The user may set up the BAM 1020 to perform the span check hourly, once per day, or not at all. The BAM 1020 also performs a stability test: 1.
Page 30: Filter Tape Use
The BAM 1020 positions the filter spots very close to one another so as not to waste filter tape. Once each day at midnight, the BAM 1020 will skip a spot (there will not be a spot where one is expected to be). This is done to make it easier for the user to match the spot on the take up spool with the hour and the day the spot was generated if this is necessary to be done.
Page 31: Flow System And Flow Calibrations
5.1 Flow System Diagram The BAM 1020 is designed to operate with an air flow rate of 16.70 liters per minute (L/min or LPM). The flow rate must be maintained at this value in order for the commonly used the EPA...
Page 32: Total Flow
This mode of operation is not recommended as the cut points for the PM inlets and the size fractionators require a nominal flow of 16.70 actual liters per minute. All BAM 1020 monitors built since 2008 include a mass flow controller as standard equipment. External temperature sensors (either BX-592 or BX-596) are required for mass flow control.
Page 33: Leak Check Procedure
Perform the following steps to check for leaks in the BAM 1020 system: 1. Enter the TEST > TAPE menu. This will stop the operation cycle of the BAM 1020. Press the FWD soft key to advance the tape 1 “window” to a clean, unused spot.
Page 34: Nozzle And Vane Cleaning Procedure
We recommended that the nozzle and vane be inspected monthly for tape build up. Some sites may require a more frequent inspection and cleaning interval. BAM 1020 monitors operated in hot, humid environments may require more frequent nozzle and vane cleaning.
Page 35 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. The dust spots have crisp edges, are perfectly round, and are evenly distributed.
Page 36: Field Calibration Of The Flow System - Actual Flow Mode
5.7 Field Calibration of the Flow System – Actual Flow Mode Flow calibrations, checks, or audits on any BAM 1020 set for actual flow control are very fast and easy. An ambient temperature sensor must be connected to input channel 6. The FLOW TYPE setting must be set to ACTUAL in the SETUP >...
Page 37 CAL key. Note: If the BAM 1020 is unable to achieve flow regulation at the 18.4 L/min point, this could be an indication that the vacuum pump needs to be serviced.
Page 38: Field Calibration Of The Flow System - Standard Flow Mode
ACTUAL in the SETUP > CALIBRATE menu, then perform a normal actual flow audit or calibration as described above. If this method is used, be sure to set the BAM 1020 back to STD flow type when finished. This works as long as the BAM 1020 is equipped with an ambient temperature sensor on input channel six.
Page 39: Setup Menu Descriptions
Once set, most of the values in the SETUP menus will not need to be changed. The SETUP values will not be lost if the BAM 1020 is unplugged or powered down.
Page 40: Clock Setup Screen
ON. See Section 4.1 for a description of the hourly cycle. The BAM SAMPLE time must be set in response to the COUNT TIME value, since current versions of the BAM 1020 allow the option of setting the count time to 4 or 8 minutes. If the BAM 1020 is used for PM FEM or EU PM monitoring, the BAM SAMPLE must be set to 42 minutes with 8-minute count time.
Page 41 The RANGE value may be set to 0.100, 0.200, 0.250, 0.500, 2.000, 5.000, or 10.000 mg. It is important to understand this setting if an external data logger is used to log the BAM 1020 analog output, since the data logger must be set to scale the analog voltage correctly. See Section 8.
Page 42: Calibrate Setup Screen -Flow And Calibration Settings
The factory default value for OFFSET is -0.015 mg, which is the recommended setting. When set this way the BAM 1020 can report from -.015 mg (0.0 V) to .985 mg (1.0 V).
Page 43 BAM 1020. The FLOW TYPE should be set to ACTUAL on all BAM 1020 monitors equipped with an external temperature sensor (BX-592, BX-596 or BX-597). FLOW TYPE should be set to STD only if an external temperature sensor is unavailable.
Page 44: Extra1 Setup Screen
µsw: This is called the mu-switch value, and is the factory-set mass absorption coefficient used by the BAM 1020 in the concentration calculations. The value is typically around 0.3 and may vary slightly from one BAM 1020 to the next. Older units built before 2007 had a µsw value near 0.285.
Page 45 BAM 1020 sets the analog output voltage to full scale (1.000 volts) whenever any of the enabled error types occurs. When there are no alarming conditions present, the voltage represents the last valid concentration level. See Section 8 for external data logger setup information.
Page 46: Password Setup Screen
TEST or SETUP menus. The password prevents users without the password from changing critical settings or calibrations on the BAM 1020. The password can be any 4- key combination of the six function keys, F1 to F6. The default password is F1, F2, F3, F4.
Page 47: Interface Setup Screen
This can be used to manually toggle the “M” digital maintenance flag and Maintenance: the maintenance relay on the back of the BAM 1020 ON or OFF. This can be useful to flag data when performing the zero filter test or testing that will affect the data integrity. It will also display the words MAINTENANCE MODE on the Main Menu screen.
Page 48 MANUAL or AUTO ID. In MANUAL mode, the user can enter their own setup parameters for the channel. AUTO ID mode is used with 500 series sensors, and must be selected in order for the BAM 1020 to recognize the sensor automatically. NOTE: Any manually set parameters for that channel will be lost when changing to AUTO ID mode.
Page 49: Heater Setup Screen - Rh Control Settings
This is the relative humidity level that the filter will be regulated at or below by the inlet heater. This value must be set to 35% for the version of the BAM 1020 employing the smart heater when operated as a PM2.5 US-EPA designated federal equivalent method.
Page 50: Query Setup Screen - Custom Data Array Setup
Delta-T measured even if the heater is OFF, due to mild heating effect of the BAM 1020 itself. Frequent errors will be logged if the set point is too low. Set the value to 99 if Delta-T control is not used.
Page 51 Date and Time stamp for the sample period. Ignored for BH TIME protocol. ERRORS Decimal error codes of the 12 major error categories. BAM 1020-9800 Manual Rev W.docx Page 51...
Page 52: Reports Setup Screen - Daily Data And Dynamic Ranges
00:00 to 23:00 (old default setting) or 01:00 to 24:00 (correct newer setting) The BAM 1020 time stamp is the end of the sample hour, not the beginning, so the 01:00 data point is for air sampled between midnight and 1:00 am. Always select 01:00 to 24:00 unless the monitor is being used in a special application requiring 00:00 to 23:00.
Page 53: Hj 653 Setup Screen - Chinese Data Formatting
Also, selecting YES will force the DYNAMIC RANGE setting (see section 6.11.2) to EXTENDED. If the HJ 653 option is set to OFF, the data report will be as shown in section 9.4. BAM 1020-9800 Manual Rev W.docx Page 53...
Page 54: Maintenance, Diagnostics And Troubleshooting
MAINTENANCE, DIAGNOSTICS and TROUBLESHOOTING This section provides information about routine maintenance, identifying errors and alarms, and performing diagnostic tests on the BAM 1020. The TEST menu functions are also described in this section. Met One Instruments also publishes a comprehensive array of technical bulletins that covers additional information about subsystem troubleshooting, upgrades, and repairs.
Page 55: Bam 1020 Error And Alarm Descriptions
BAM 1020 Error and Alarm Descriptions The following table describes the BAM 1020 error and alarm codes. Errors are grouped into twelve categories. If an error or alarm occurs, it will appear at the end of the hourly digital data array as a simple “1” bit in one of the twelve error bit positions. This allows data collection systems to easily identify errors.
Page 56 This error occurs if AC input power is lost even momentarily, or if the power switch is turned off. Frequent “L” errors usually indicate poor quality AC power. If frequent power errors occur even when the BAM 1020 is connected to a UPS backup system, Power Failure contact Met One Instruments for instructions on possible power supply upgrades.
Page 57 This alarm sets the concentration value to full-scale. The sub-category “count, failed” occurs if the beta counter is still counting 10 seconds after the scheduled end of any count period, indicating a digital fault. BAM 1020-9800 Manual Rev W.docx Page 57...
Page 58 TEST > ALIGN menu to manually operate the motors and photosensors. See Section 7.16. Tape errors can be caused by grit in the shuttle beam ball slide. Contact tech service if the left/right shuttle slide action is not smooth. BAM 1020-9800 Manual Rev W.docx Page 58...
Page 59: Comparison Of Bam 1020 Data To Integrated Filter Sampler Data
• Nozzle leaks can lead to poor correlation between the BAM 1020 and the reference standard. • Improper inlet tube insulation or placing the BAM 1020 directly in the path of an air conditioner vent during operation under hot, humid conditions can lead to poor correlation with the reference standard and unpredictable levels of multiplicative and additive bias.
Page 60: Power Up Problems And Electrical Safety Considerations
Power Up Problems and Electrical Safety Considerations The BAM 1020 must be at a state where it can be powered on before any other testing or diagnosis can be performed: • Make sure that the BAM 1020 is plugged into the correct AC voltage. The BAM 1020 is internally wired for either 110/120V or 220/240V.
Page 61: Basic Problem And Cause/Solution Table
• Make sure the filter tape is installed correctly. • The BAM 1020 will never start a cycle if the display is left in a TEST or SETUP menu! The main screen or OPERATE menu must be displayed. • The BAM 1020 will usually display an error if it cannot start a new sample cycle.
Page 62 Check the zero of the flow sensor in the BAM: Perform another leak check, but disconnect the tubing between the pump and the BAM, so there can be no air flow through the BAM 1020. Verify that the flow reading on the BAM reads less than 0.2 L/min. If not, the flow sensor Q zero offset setting may need to be adjusted in the SETUP >...
Page 63 • Some vintages of the DC power supply used in the BAM can be prone to oxidization on the harness pins which can cause the BAM 1020 to reset frequently. Upgrade parts may be available for certain units. Current power supplies have the output harness wires soldered to the supply.
Page 64: Nozzle Component Service And O-Ring Replacement
Instructions for O-ring replacement are below. The sample nozzle may also be easily removed from the BAM 1020 for further cleaning or rebuild. This requires a set of brass adjustment shims to set the spring tension during reassembly.
Page 65: Performing The 72-Hour Zero Filter Background Test
QA/QC program, the frequency of which is up to the user. When the BAM 1020 is set up for the first time we recommend that a minimum of 48-72 valid 1-hour data points be collected in order to accurately determine the BKGD value. The initial zero-test allows the user to determine the instrument noise (σ) and to confirm that the lower...
Page 66 ( and running in "simmer mode") on the shorter inlet tube (1.5 foot long inlet tube which accompanies each BAM 1020 to sample room air) and with the BX-302 zero filter assembly on the top of this shorter inlet tube .
Page 67: The Test Menu System - Overview
Dark Count Tests: A steel shim such as Met One 7438 can be placed between the beta source and detector to perform a dark count test. The shim blocks all beta particles, and only counts created by noise or cosmic rays will appear.
Page 68: Pump Test Menu - Manual Pump And Nozzle Tests
BAM operates in actual flow mode. For this reason, no flow audits or checks should be performed using this screen! Obsolete BAM 1020 units with a manual flow valve were calibrated using this screen.
Page 69: Calibrate Test Menu - Span Membrane Mass Tests
0.000 and 1.000 volts (0.100V increments). The corresponding voltage on the VOLT OUT +/- terminals on the back of the BAM 1020 should always match within ±0.001 volts. Use a high-quality voltmeter for these tests. If the actual voltage does not match the value on the TEST >...
Page 70: Interface Test Menu - Relay I/O Channel Tests
BAM 1020 tape transport assembly. This is useful if the BAM 1020 has failed some of the Self-Test parameters. The function of the six ALIGN sub-menus are described in this section. Note: The filter tape should be removed during these tests, because many of these functions will break the tape.
Page 71: Heater Test Menu
This allows ambient room air to equilibrate the filter temperature sensor. Allow the pump to run for at least 5 minutes to allow the sensor to equilibrate. When fully equilibrated, the filter temperature should match ambient BAM 1020-9800 Manual Rev W.docx Page 71...
Page 72: Rh Test Menu - Filter Humidity Sensor Test And Calibration
RH sensor element because it is ESD sensitive. Move the sensor manifold away from the BAM so that an accurate ambient RH value can be obtained. Enter the TEST > RH BAM 1020-9800 Manual Rev W.docx Page 72...
Page 73 The RESET key can be used to remove all previous field calibrations from the sensor and restore the default factory calibration. Do not press the CAL key after RESET, or whatever value happens to be in the REFERENCE field will be calibrated. BAM 1020-9800 Manual Rev W.docx Page 73...
Page 74: External Data Logger Interface System
RANGE and OFFSET setting. See Section 6.2. In most applications where the OFFSET is set to -0.015, and the RANGE is set to 1.000 mg, the BAM 1020 analog output will be scaled as 0.000v to 1.000v equals -0.015 mg to 0.985 mg. It is critical that your analog data logger...
Page 75: Early Cycle Mode Option For Analog Data Collection
1020 has a special EARLY cycle mode (in the SETUP > INTERFACE menu) which causes the BAM 1020 to start and finish the measurement a few minutes early in order to output the concentration voltage for the last 5-minutes of the hour which was just sampled. The data logger must be programmed to read this value during the window.
Page 76: Telemetry And Error Relays
In addition to the analog output voltage, several input and output relay connections are provided on rear panel of the BAM 1020. These can be connected to an external data logger as a second method of indicating alarms between the BAM and the logger, but in practice most of these relay telemetry connections are rarely used.
Page 77 POLARITY OUTPUT C1 NORMAL COMMON C2 REVERSE REPORT SIGNAL 2 SIGNAL CHASSIS GROUNDS COMMON COMMON POWER CURRENT COM 3 OUTPUT BAM 1020 Back Panel and Relay Connections (Extra Report Processor Digital Outputs Shown) BAM 1020-9800 Manual Rev W.docx Page 77...
Page 78 This input can be used to synchronize the BAM 1020 clock to the external data logger at the top of the hour, and is often used in EARLY cycle mode. This is a contact-closure input which must be activated for a minimum of 2-seconds.
Page 79: Interfacing A Digital Data Logger With The Bam 1020
CPU Interruptions: Care is required when collecting data from the classic BAM 1020 RS- 232 port. The BAM main CPU cannot multitask, so if the BAM 1020 is moving any of the filter tape or span membrane motors (especially near the top of each hour) it will ignore any RS- 232 serial port commands and interrupt any serial data downloads until the mechanical motion is complete.
Page 80: Digital Communications And Data Retrieval
In these circumstances, the BAM 1020 RS-232 or REPORT port can be directly connected to the serial port. Connect the port on the back of the BAM 1020 to the COM port connector on the computer with the supplied BAM serial cable (part 400658, female-to-female 9-pin null).
Page 81: Using Met One Comet Communications Software
BAM in this manner. Communication Settings: The BAM 1020 communicates at 9600 Baud, 8 data bit, no parity, one stop bit, and no flow control. The default 9600 baud rate may be changed to a faster setting for downloading large BAM data files, but in any case, the terminal program baud rate must match the BAM baud setting.
Page 82: Downloading Data Using Simple Terminal Programs
BAM 1020. 6. Once communication is established, press the h key. This should cause the BAM 1020 System Menu to appear on the window as shown below. You can now send any of the ASCII characters in the menu to retrieve the desired files.
Page 83: System Menu And File Descriptions Using A Terminal Program
BAM 1020 System Menu. Each number 0-9 represents a different data file you can download from the BAM 1020. Each file is described below. To get the desired file, simply press the appropriate number on your keyboard.
Page 84 File 4: Display System Configuration (BAM Settings File): This file contains a list of the BAM 1020 settings and calibration values. This is useful for verifying the setup parameters and will most likely be requested by the factory if service is required.
Page 85 Q_STD, Q_ACT, ERRORS, REF, FLOW, XXXXX, XXXXX, XXXXX, XXXXX, AT , TIME, ERRORS, CONC_S, Daily Range, 01:00 - 24:00 Span Check, 1 HR Ethernet Handshake, None File 4 System Configuration (Settings) File Example BAM 1020-9800 Manual Rev W.docx Page 85...
Page 86 The following example shows a typical CSV download of the file 6,4 last data record from the BAM 1020, such as might be retrieved by an external digital data logger on an hourly basis. This file download does not reset the data pointer.
Page 87 The following example shows a typical CSV download of the file 6,3 new data records form the BAM 1020, such as might be done for routine data collection using a local computer or modem. The file contains all of the data record since the last download, and resets the data pointers.
Page 88 This file contains the date, time, and a description of each of the last 100 errors logged by the BAM 1020, in text format. This file reports the 12 main alarm categories only, but not the sub- categories showing the more specific alarm cause. For this reason, the csv error log file should be used instead (file 6 sub-file 9).
Page 89: Printer Output Port Functions
Rarely used. Printer Output Port Functions The Printer port on the back of the BAM 1020 is an output-only RS-232 serial interface which may be used with a serial printer or as a diagnostic output to a computer. The printer port output can be configured by using the “a”...
Page 90: Modem Option
BAM 1020 by pressing the <Enter> key at least three times until the command prompt asterisk (*) appears. If not, verify the cabling and communications settings. Once connected, the access to the BAM 1020 is the same ASCII menu driven interface as used for the direct PC connection.
Page 91 You will need a computer or laptop with an RS-232 (9-pin) serial COM port and the standard BAM serial cable that came with the BAM 1020. Laptops without a 9-pin COM port will need a reliable USB-to-RS-232 converter, or a USB cable can be used if your BAM has the USB converter port on the back.
Page 92 Flash Update Process: 1. A Met One technician will probably e-mail you a link to the FTP file server site where the current Firmware Update Utility program is located. It will look something like the following: http://metoneftp.com/service/Firmware_Upgrades/BAM-1020%20Firmware/BAM%201020%20Firmware %20Installer%20PM2.5%203236-05%20V3.4.3.exe 2. Click on the link or paste it into your internet browser address bar. After a moment the...
Page 93: Resetting The Data Pointer For New Data Collection
Resetting the Data Pointer for New Data Collection The BAM 1020 sets a data pointer when data files are retrieved. The pointer indicates the last data record collected, so that next time “new data” is retrieved, only data back to that pointer is sent.
Page 94 The Query output is provided to allow easier configuration of digital data logger and more flexibility in the BAM 1020 digital output array. The Query output array is set to include only the desired parameters in the desired order, and is accessed with a simple escape command sequence.
Page 95 If the error status is included in the custom Query array (QC), it will appear as a decimal error code as shown below. Each decimal code value corresponds to one of the twelve regular BAM 1020 error or alarm types as described in Section 7.2. Decimal Code...
Page 96: Accessories And Parts
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 and provide the serial number of your BAM 1020. Some of these parts require technical skills or special considerations before use or installation.
Page 97 Flow Sensor, Mass, 0-20 LPM, Internal Assembly 80324 Automatic Flow Controller BX-961 Filter Assembly, Pisco In-line 580291 Filter Element Only, Pisco In-line 580292 Filter RH Sensor Replacement Only 9278 Filter Temperature Sensor Replacement Only 9279 BAM 1020-9800 Manual Rev W.docx Page 97...
Page 98 Board Replacement Circuit Board, AC Motor Driver 3110-2 Information. Circuit Board, High Voltage 3150-1 Front Door Assembly, BAM 1020 Standard Version 9628 Rear Panel Assembly 80679 Fuse, 3.15A, 250V, 5x20mm, 2 Required 590811 Motor, with gear box, 4 RPM. 4 per unit.
Page 99 592 Ambient Temperature Sensor, Auto ID BX-592 592 Room/Shelter Temperature Sensor, Auto ID BX-592-1 593 Ambient Relative Humidity Sensor, Auto ID BX-593 594 Ambient Barometric Pressure Sensor, Auto ID BX-594 595 Solar Radiation Sensor, Auto ID BX-595 BAM 1020-9800 Manual Rev W.docx Page 99...
Page 100 Touch Screen Display Option. Complete Front Door BX-970 Assembly for BAM 1020. Report Processor kit. Complete back panel assembly BX-965 or plug-in board. Call Met One for upgrade details. Required for PM-Coarse Configuration. Modem Kit for BAM 1020 BX-996 Cellular/IP Modem Kit for BAM 1020 BX-911 BAM 1020 Serial Cable, DB-9 Female Ends, Null.
Page 101: Series Meteorological Sensor Configurations
10.2 BX-500 Series Meteorological Sensor Configurations The BAM 1020 has six channels of inputs available on the back of the BAM 1020 for data logging external sensors. The BX-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 type of sensor.
Page 102 The BX-596 BP signal must be connected to unlogged channel 7, but may be jumped to another unused channel for logging. Sensor Physical Mounting: The BX-500 series sensors typically mount near the top of the BAM 1020 inlet tube with a supplied short cross-arm and/or related hardware. The sensors can also be mounted to a separate nearby tripod, such as Met One model 905.
Page 103: Theory Of Operation
�� Tiny variations in the measured absorption cross section �� will be found from one BAM 1020 to the next. These differences are due to small differences between the activities of the beta sources and due to small differences in the geometries (i.e., manufacturing tolerances) that exist between one instrument and the next.
Page 104: Converting Data Between Epa Standard And Actual Conditions
1020 monitor. The collocated monitors then sample and measure the same aerosol (smoke) for 48 or 72 hours. A linear regression of the hourly output of the BAM 1020 under test against the transfer standard BAM 1020 will provide a slope “��” is used to set the final calibration.
Page 105 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 BAM 1020-9800 Manual Rev W.docx Page 105...
Page 106 0.500 Volts Volts Volts 1.000 Volts Volts Volts Membrane Audit Flow Control Range Flow Set LAST m (mg): BAM Flow point ABS (mg): 15.0 LPM Difference 16.70 LPM (mg): % Difference: 18.4 LPM BAM 1020-9800 Manual Rev W.docx Page 106...
Page 107 CONC UNITS STD TEMP Delta-T Set point COUNT TIME HEATER Datalog Delta-T FLOW RATE CONC TYPE Errors Last 6 Errors in BAM 1020 Error Log Error Date Time Error Date Time Audit Notes: BAM 1020-9800 Manual Rev W.docx Page 107...
Page 108 Manual Notes: BAM 1020-9800 Manual Rev W.docx Page 108...

Met One BAM 1020 Operation Manuals

1 Introduction

2 Site Selection and Installation

3 Initial Setup of Your Bam 10

4 The Measurement Cycle

5 FLOW SYSTEM and FLOW CALIBRATIONS

6 Setup Menu Descriptions

7 MAINTENANCE, DIAGNOSTICS and TROUBLESHOOTING

8 External Data Logger Interface System

9 Digital Communications and Data Retrieval

10 ACCESSORIES and PARTS

11 Theory of Operation

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