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Met One Instruments BC 1054 Operation Manual

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OPERATION MANUAL
BC 1054
Black Carbon Monitor
BC 1054-9805
Rev A
Met One Instruments, Inc.
1600 NW Washington Blvd.
Grants Pass, OR 97526
Telephone: (541) 471-7111
Facsimile: (541) 471-7116
metone.com

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  • Page 1 OPERATION MANUAL BC 1054 Black Carbon Monitor BC 1054-9805 Rev A Met One Instruments, Inc. 1600 NW Washington Blvd. Grants Pass, OR 97526 Telephone: (541) 471-7111 Facsimile: (541) 471-7116 metone.com...
  • Page 2 For more information about Acoem, please visit: acoem.com BC 1054 Operation Manual - © Copyright 2023 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 3: Table Of Contents

    Table Of Contents INTRODUCTION About This Manual ..................8 Technical Service ..................8 About the BC 1054 – Ten Wavelength Black Carbon Monitor ......9 Safety Warnings ..................10 BC 1054 Instrument Specifications ............... 11 2. ASSEMBLY and DEPLOYMENT Unpacking The BC 1054 ................12 2.1.1...
  • Page 4 Stopping a Sample ....................62 6. MAINTENANCE and TROUBLESHOOTING Recommended Periodic Maintenance ............63 6.1.1 Factory Service...................... 63 BC 1054 Error and Alarm Event Descriptions ..........64 Basic Problem Causes/Solutions ..............67 System Maintenance .................. 69 Page 2 BC 1054-9805 REV A...
  • Page 5 7.2.2 Ethernet Connection ....................94 7.2.3 Modem Port Connection ..................94 7.2.4 Computer RS 232 Connection ................94 BC 1054 Data output and data examples ............. 94 7.3.1 Settings File ......................94 7.3.2 Alarm Log File ......................96 7.3.3 User File ........................96 7.3.4...
  • Page 6 Table Of Figures Figure 1-1 The BC 1054 Front Panel ..................9 Figure 2-1 Typical BC 1054 Installation in a walk-in shelter ..........14 Figure 2-2 Inlet Tubing Grounding Assembly ................ 16 Figure 2-3 Grounding Clamp Position ................... 16 Figure 2-4 Installed Grounding Assembly ................16 Figure 2-5 Major Components of the Dilution Flow System ..........
  • Page 7 Figure 4-31 Serail Port Settings Screen, Main ...............57 Figure 4-32 Baud Rate Dropdown list...................57 Figure 4-33 Flow Control Dropdown List ................57 Figure 4-34 Ethernet Connection Port ................. 58 Figure 4-35 IP Config Dropdown ..................58 BC 1054-9805 REV A Page 5...
  • Page 8 Figure 6-7 Cyclong Inlet O-rings ................... 71 Figure 6-8 Dilution Flow Inlet Mounting Screws..............71 Figure 6-9 Pull cyclone away from BC 1054 inlet fitting ............71 Figure 6-10 Push and hold release ring ..................72 Figure 6-11 Dilution Cyclone Nozzles and Screws ..............72 Figure 6-12 Dilution Cyclong Cleaning ..................72...
  • Page 9 Figure 7-8 Diagnostics File (First Half) ................98 Figure 7-9 Diagnosits File (Second Half) ................98 Table of Tables Table 1-1 BC 1054 BC Measurement Labeling ................ 9 Table 2-1 BX-597A Sensor to BC 1054 ................20 Table 3-1 BC 1054 Menu Hierarchy ..................22 Table 6-1 BC 1054 Maintenance Schedule ................

  • Page 10: Introduction

    Email: service.moi@acoem.com 97526 U.S.A. All BC 1054 monitors have two product labels with the serial number printed on them. The labels are located on the upper right corner of the back panel and inside on the backside of the door by the display. The calibration certificate also has the serial number printed on it.

  • Page 11: About The Bc 1054 - Ten Wavelength Black Carbon Monitor

    About the BC 1054 – Ten Wavelength Black Carbon Monitor The Met One Instruments, Inc. model BC 1054 MultiSpectrum Carbon Monitor is a ten- wavelength black carbon monitor, which automatically measures and records optical transmission across filter media onto which particulate matter has been deposited at ten wavelengths ranging from 370 nm to 950 nm.

  • Page 12: Safety Warnings

    UV and IR radiation. Electrical Warnings: The BC 1054 is a 12 Volt DC powered system. There are no hazardous live voltages located anywhere inside the instrument. It is equipped with an external desktop power supply module with a 100-240 VAC 50/60Hz input range, and a 12 VDC, 8.5 A output.

  • Page 13: Bc 1054 Instrument Specifications

    BC 1054 Instrument Specifications PARAMETER SPECIFICATION BC1: 370 nm BC2: 430 nm BC3: 470 nm BC4: 525 nm Optical Absorption BC5: 565 nm Wavelengths: BC6: 590 nm BC7: 660 nm BC8: 700 nm BC9: 880 nm BC10: 950 nm Measurement Range: 0.01 µg/m...

  • Page 14: Assembly And Deployment

    NOTE: Please keep all the special shipping items (box, foam packing material, etc.) used to ship the BC 1054 Black Carbon Monitor. They should be re-used if the BC 1054 is to be transported (changing site locations, returning to the factory, etc.). Contact Met One Instruments for replacement packing materials if necessary.

  • Page 15: Shipment Contents

    Shipment Contents From the list below, check that all mandatory, standard equipment items have been included. The normal configuration of the BC 1054 is supplied with the following standard items and accessories: BC 1054 System Check-Off List 510634 universal input AC to 12 VDC power supply...

  • Page 16: Shelter And Mounting Options

    Shelter and Mounting Options 8936-5 Sample Inlet (included Figure 2-1 Typical BC 1054 Installation in a walk-in shelter Page 14 BC 1054-9805 REV A...

  • Page 17: Bc 1054 Assembly

    (pn: 480773) is used to secure the tubing to the support tube. The other end of the sample tubing is routed to the BC 1054, grounded to a terminal on the back of the instrument, and is then installed on the rear of the monitor using a push-to-connect fitting (pn: 580399).

  • Page 18: Dilution Flow System Option

    3. Route the Flexible ESD Tubing: Flexible tubing (pn: 960216) should be routed from the base of the support tube in the sample location to the back of the BC 1054. It should not be connected to the inlet fitting at this time. See section 2.3.1.

  • Page 19: Figure 2-5 Major Components Of The Dilution Flow System

    When installed on the back of the BC 1054, a controlled portion of clean air is mixed with the incoming sample air. Using this feature, the incoming sample concentration levels can be diluted between 50% and 80%. This means that because the volume of air is carefully controlled, accurate measurements can be made with a mere 20% of the full particulate concentration in extreme environments.

  • Page 20: Figure 2-6 Dilution Flow System Cover Removal

    4. Mount the Dilution Flow System assembly: Install the Dilution Flow System assembly on the back of the BC 1054. Remove the two screws holding the cover of the assembly in place and then Remove these screws remove the Dilution Flow System assembly cover shown in Figure 2-6.

  • Page 21: Figure 2-9 Dilution Flow System Exhaust Adapter

    9. Connect the 12V power supply: Plug the 12V, 8.5A power supply (pn: 510634) into the four-pin power connector on the back panel of the BC 1054. The power supply has a universal AC voltage input. The included US-type modular power cord (pn: 400100) can be changed to another type if needed.

  • Page 22: Bx-597A Ambient Sensor Installation

    Route the digital sensor cable (pn: 30010-25) from the corresponding connector on the bottom of the BX-597A sensor to the correct terminals on the back of the BC 1054 as shown in Table 2-1. NOTE: Either 12V terminal may be used and can be shared.

  • Page 23: Ac Pump Box Installation

    BC 1054 is in an area where personnel are present. NOTE: The pump is not weatherproof and should always be indoors. Route the clear 10 mm air tubing from the pump to the back of the BC 1054 and insert it firmly into the compression fittings on both ends.

  • Page 24: Filter Tape Installation

    Filter Tape Installation Section 4.2.4Tape System Configuration will provide filter tape installation instructions. 3. USER INTERFACE and MENU SYSTEM This section describes the BC 1054 menu hierarchy, menu navigation, user interface touch-screen functions, and menu descriptions. Menu Hierarchy The BC 1054 menu structure is outlined in the following table.

  • Page 25: Initial Startup Sequence

    User Interface and Touch-Screen Display Functions The BC 1054 user interface consists of a color touch-screen display used to control almost all the features and functionality of the sampler. The Image below indicates the Home screen buttons for operation and navigation along with data read-outs such as ambient conditions and current sample values.

  • Page 26: Touch Screen Manipulation

    Figure 3-4 Figure 3-3 BC 1054 Home Screen Interface and Navigation NOTE: Dilution Flow only appears when the BC 1054 detects a Dilution flow system. 3.3.2 Data View Screens Current sample data can be viewed two ways: numerical values, as shown by Figure 3-3, or in a graph shown in Figure 3-4.

  • Page 27: User Interface Navigation

    See Figure 3-5 below. To close labels by pressing the the menu pane icon labels, press the button again or touch anywhere on the main screen. Figure 3-5 Home Screen Side Menu Expanded BC 1054-9805 REV A Page 25...

  • Page 28: Sub Menu Navigation

    Figure 3-7 Settings Sub Menu Navigation “Sample Rate” is an example of a drop- down menu which provides pre-defined selectable settings. Page 26 BC 1054-9805 REV A...

  • Page 29: Editing Input Fields

    • The CANCEL button will return to the previous menu without saving changes. • When the desired password is confirmed, press the OK button to save the password and go back to the previous menu. BC 1054-9805 REV A Page 27...

  • Page 30: Menus

    3.5.1 Home Screen The BC 1054 main sampling/operation screen or Home Screen is shown below in Figure 3-10. The current date and time are always fixed at the top line of the display on this screen. The menu selection pane is on the left side of the main screen, as mentioned in section 3.4.1.

  • Page 31: Settings Menu

    • WS and WD: (not shown in Figure 3-10) WS is the measured wind speed, and WD is the measured wind direction. Both WS and WD require an optional external WS/WD sensor (part number AIO 2). Contact Met One Instruments for details at sales.moi@acoem.com.

  • Page 32: Figure 3-12 Sample Settings Screen

    The Flow settings screen is shown below. Figure 3-14 Flow settings screen shows the BC 1054 base configuration without a dilution flow system connected. Figure 3-15 flow settings screen shows the BC 1054 with a dilution flow system connected. The BC 1054 is Designed to automatically detect a dilution flow system when connected.

  • Page 33: Figure 3-16 Heater Settings Screen

    NOTE: If a dilution system is not connected to the BC 1054, the dilution flow value is not shown in the home screen. 3.5.2.4 Heater Settings Screen The Heater screen provides a means of adjusting the set points of the internal box heater and the inlet heater.

  • Page 34: Calibration Menu

    Calibration menu provides the means to audit and calibrate individual measurement sensors that are vital to the operation of the BC 1054 and to verify those calibrations as a system. Also available on this screen are the K-Factor calibration, LED adjustment, and calibration verification.

  • Page 35: Figure 3-19 Calibration Menu

    The BP CALIBRATION screen is used for field audits or calibrations of the ambient barometric pressure sensor connected to the BC 1054. Note that the pressure will be calibrated using the current set units for pressure (mbar or mmHg). Figure 3-21 Barometric Pressure Cal. Screen...

  • Page 36: Figure 3-22 Flow Zero Cal. Screen

    Sample Flow Screen The SAMPLE FLOW screen is used for field audits or calibrations of the sample flow measurement of the BC 1054. The temperature, pressure, and leak status must be checked before performing a flow calibration. Figure 3-22 Flow Zero Cal. Screen.

  • Page 37: Figure 3-26 Led Cal. Screen

    Figure 3-27 Verify Cal. Zero Screen Figure 3-28 Verify Cal Insert ND Filter Screen The Verify Calibration screen is used to perform the optical span calibration verification test on the instrument using a neutral density filter. BC 1054-9805 REV A Page 35...

  • Page 38: Test Menu

    3.5.4 Test Menu The BC 1054 TESTS or INSTRUMENT TESTS menu contains a system of screens that can be used to test the electrical and mechanical subsystems for troubleshooting purposes. Figure 3-29 Test Menu 3.5.4.1 Load Tape Screen The LOAD TAPE screen is used to raise or lower the optical measurement head to install a new roll of filter tape.

  • Page 39: Figure 3-32 Tape Test Screen

    Figure 3-33 Leak Test Screen 3.5.4.5 Lamp Test Screen The LAMP TEST screen is used to test the individual LEDs and photodiode detectors for proper functionality, especially if optical system alarms are generated. Figure 3-34 Lamp Test Screen BC 1054-9805 REV A Page 37...

  • Page 40: Export Menu

    3.5.5 Export Menu The BC 1054 can copy data files to a user-supplied USB stick. The stick USB plug must be inserted into the BC 1054 USB port. To locate the USB port, open the BC 1054 main door. The USB port is approximately four inches above the filter tape take-up spool on the right side of the detector housing.

  • Page 41: Alarms Or Alarm Log

    3.5.6 Alarms or Alarm Log This menu allows operators to quickly view the error log entries in the BC 1054. The screen displays the type of error and the time and date when the error occurred. Some alarms, such as flow failure, shown in Figure 3-38 Alarm Log, above, will provide specific information about that alarm to aid in troubleshooting.

  • Page 42: About Screen

    Serial number, location ID software and firmware versions, IP address, and factory calibration date. At the bottom of the About screen, the phone number, email address, and support web page for Met One are provided. Figure 3-39 About Screen Page 40 BC 1054-9805 REV A...

  • Page 43: Bc 1054 Configuration And Setup

    4. BC 1054 Configuration and Setup The sections below explain the process of configuring the BC 1054 for operation. The factory settings provide a baseline for standard sampling conditions, but it is recommended to check local sampling requirements and adjust the BC 1054 settings accordingly.

  • Page 44: Figure 4-2 Date Input Screen

    • Adjusting the clock by more than ten minutes requires that the instrument is NOT sampling. If the clock is adjusted while the instrument is NOT sampling, the time is adjusted immediately. The BC 1054 will prompt a system reboot. Page 42 BC 1054-9805 REV A...

  • Page 45: System Password

    Comet Software or HyperTerminal. When a connection is established, send the “RPW” command to the unit. The BC 1054 will provide an encrypted response, which should then be emailed (see Figure 3-39 About Screen for email) to the Met One Instruments service department for decoding.

  • Page 46: Logging

    The LOGGING screen location: Side Menu Pane>Settings>Admin Settings>Logging (see section 3.1 Menu Hierarchy). This screen is used for diagnostic purposes and should remain off unless requested by Met One Instruments service personnel. Figure 4-6 Logging Level Page 44 BC 1054-9805 REV A...

  • Page 47: Remote Access Config

    “********” in it. The input screen with an alpha and numeric keyboard will appear. Select any combination of letters and numbers, up to eight characters. Press OK to set the password. Figure 4-9 Remote Access Password Input Screen BC 1054-9805 REV A Page 45...

  • Page 48: Update Software

    USB device. The system will automatically Figure 4-10 Upgrade Software restart. Basic Settings This section describes each settings menu in detail and how to configure the BC 1054. Sampling requirements will vary; these instructions are guidelines and should be crosschecked with local sampling requirements. 4.2.1...

  • Page 49: Units Of Measurement Configuration

    4.2.3 Location ID and Sampel Rate Configuration The BC 1054 location ID and Sample rate can be configured to owner preferences and local monitoring requirements. The location ID is a convenient way to identify data set locations when comparing multiple sample site data reports. This is an optional setting that does not affect operation.

  • Page 50: Tape System Configuration And Setup

    The interval can be set to 1, 2, 3, 4, 6, 8, Figure 4-16 Tape Settings Screen 12, or 24 hours (independent of filter loading). With a fixed time interval, the tape will advance at the top of the respective hour demarcation. Page 48 BC 1054-9805 REV A...
  • Page 51 NOTE: The appropriately designated cyclone must be used to match the set flow rate for flow characteristics. NOTE: The BC 1054 Tape Period should be set to “AUTO” for normal operation. Data may be invalid or only used for testing purposes if the Tape Period is set to anything other than “AUTO.”...

  • Page 52: Figure 4-17 Filter Tape Routing

    8. Press the MOVE button at the bottom right corner of the screen. Verify that the tape spools correctly. 9. Advance at least one turn of filter tape over the take-up core and return to the home screen. Page 50 BC 1054-9805 REV A...

  • Page 53: Digital Sensor Configuration

    The BC 1054 must have a BX-597A sensor connected and properly configured for operation. If the sensor is not present, the unit will not begin sampling. This section describes the process for configuring the BC 1054 to receive data from a digital sensors, specifically the BX-597A.

  • Page 54: Flow Configuration

    Figure 4-22 Digital Link Test Confirmation 4.2.6 Flow Configuration The BC 1054 can be configured with the standard flow system or accompanied with a dilution flow system for higher-concentration environments. The sections below describe how to configure both types of flow systems.

  • Page 55: Figure 4-23 Flow Settings Dropdown Options

    When installed, the flow system is activated automatically. When a dilution flow system is installed and connected to the BC 1054, the flow rate is automatically set to 2 LPM. A 2 LPM cyclone is built into the dilution flow system.

  • Page 56: Heater Configuration

    The HEAT SETTINGS screen provides a means of adjusting the set points of the sample inlet heater and internal box heater. The FLOW TEMPERATURE and BOX TEMPERATURE range is between 25 °C and 40 °C. Page 54 BC 1054-9805 REV A...

  • Page 57: Figure 4-27 Heater Settings Main

    “Flow Temperature,” shown in Figure 4-27. Use the numerical keypad to input the required value and press OK to save. Figure 4-29 Box Temperature Input Screen BC 1054-9805 REV A Page 55...

  • Page 58: Communication Settings

    Communication Settings The BC 1054 can be configured to have its data polled over a network connection if available at the sample site. This section describes the procedures for setting serial port and ethernet communication settings. 4.3.1 USB Communications BC 1054 monitors include a USB COMM (Type B) port located at the back panel, indicated by the orange outline, below in Figure 4-24.

  • Page 59: Ethernet Configuration

    4.3.3 Ethernet Configuration This screen is used to set the IP Address, Subnet Mask, and Gateway to allow the BC 1054 to communicate on a local area network using a standard Ethernet cable connection to a switch or router. It is recommended to set the IP address config to STATIC. The static IP address needs to be provided by the instrument owner’s IT department.

  • Page 60: Figure 4-34 Ethernet Connection Port

    Ethernet Cable Connection Figure 4-34 Ethernet Connection Port shows the location of the ethernet port at the back of the BC 1054. This is where the ethernet cable needs to be connected to use the instrument’s networking capabilities. Figure 4-34 Ethernet Connection Port 4.3.3.2...

  • Page 61: Figure 4-37 Static Ip Config Screen

    The DNS config Screen is for advanced networking purposes only and should be configured by an experienced networking professional. If these settings need to be changed, contact the local IT department. Figure 4-39 DNS Config. Screen BC 1054-9805 REV A Page 59...

  • Page 62: Bc 1054 Operating Procedures

    This section explains the process for starting a sample run, the warmup period and stopping or pausing a sample. When the back panel power switch is turned on, the BC 1054 will boot up and display a splash screen identifying the instrument.

  • Page 63: Starting A Sample

    5.2.2 Warmup Period After powering up and sampling has begun, the BC 1054 takes three to five hours to warm up and equilibrate before optimal measurement stability is achieved. The BC 1054 carbon monitor is factory configured with an array of default settings that the operator may consider changing before deployment.

  • Page 64: Stopping A Sample

    If confirmed, the BC 1054 will continue its last sample. Once the sample has finished the BC 1054 will then move the tape to a clean spot. After moving the tape to the next clean spot, the BC 1054 will continue measuring for another 11 samples.

  • Page 65: Maintenance And Troubleshooting

    6. MAINTENANCE and TROUBLESHOOTING This section provides information about routine maintenance of the BC 1054, and for performing more detailed diagnostic tests if a problem is encountered. The instrument generates error messages on the display or in the data log if a failure or other problem is detected.

  • Page 66: Bc 1054 Error And Alarm Event Descriptions

    BC 1054 Error and Alarm Event Descriptions The BC 1054 contains a system of error and alarm codes that are used to alert the operator to any problems with the unit. The errors appear on the display and are stored in the digital alarm log with the time and type of the error.
  • Page 67 WS, WD, RH or BP, replace BX- AT, RH, BP, FLOW, DFLOW, LED 597A. T, or DET T. 4. If FLOW, DFLOW, LED T, DET T refer to qualified service technician. BC 1054-9805 REV A Page 65...
  • Page 68 Detector warnings will be logged but will not interrupt operation. The IR and UV detector ranges are 0.0 to 2500 mV. The limits are as follows: Saturation Limit = 2450 Detector Limit = 100 Zero Limit = 20 mV Page 66 BC 1054-9805 REV A...

  • Page 69: Basic Problem Causes/Solutions

    1200 mbar Basic Problem Causes/Solutions The following table contains information on some of the more common BC 1054 problems that may be encountered, and some steps to identify and remedy the problems. Met One Instruments welcomes user suggestions for new items to include in this section of future manual revisions.
  • Page 70 A Calibration Audit Failure can occur if the ND filter membrane in the • 81947-3 span check membrane is damaged. A replacement 81947-3 membrane can be purchased from the Met One Instruments Service Department. Page 68 BC 1054-9805 REV A...

  • Page 71: System Maintenance

    Clean Optical lens Clean nozzle mating applicator with clean cotton surface with cotton applicator applicator Clean mating surface with cotton applicator Figure 6-2 Lower Optical Lense and Flow Figure 6-3 Upper Optical Lense and Nozzle Port BC 1054-9805 REV A Page 69...

  • Page 72: Figure 6-4 Unscrew And Clean Particle Trap

    6.4.1.1 Inlet and Cyclone Maintenance The BC 1054 inlet cyclones all need to be cleaned periodically. Met One recommends cleaning the inlet cyclone particle trap at least once per month in normal conditions. The main cyclone cavity should be disassembled and cleaned every three months during continuous use.

  • Page 73: Figure 6-7 Cyclong Inlet O-Rings

    Figure 6-9 Pull cyclone away from BC 1054 inlet fitting Figure 6-8 Dilution Flow Inlet Mounting Screws Pull the cyclone and mounting bracket away from the back of the BC 1054. Disconnect the cyclone from the BC 1054inlet. BC 1054-9805 REV A...

  • Page 74: Debris Filter Replacement

    5.1.1.3. 6.4.2 Debris Filter Replacement The BC 1054 contains a filter in the flow system as described in section 6.4.3 BC 1054 Flow System. The filter element part number is 580345, the filter assembly part number Page 72...

  • Page 75: Figure 6-13 Debris Filter Location

    2. The filter can be washed with warm soap and water if debris is still present. **ALLOW THE FILTER TO FULLY DRY BEFORE REINSTALLING.** 3. Replace filter if it cannot be cleaned. BC 1054-9805 REV A Page 73...

  • Page 76: Bc 1054 Flow System

    6.4.3 BC 1054 Flow System The flow control system is a critical component of the BC 1054 measurement. A complete functional description is included to assist the user in understanding this system. Figure 6-14 BC 1054 Flow System Diagram The following flow control systems description refer to the flow system shown in Figure 6-14.
  • Page 77 To avoid these issues, Met One Instruments offers the 82480 Dilution Flow System. When installed on the back of the BC 1054, a controlled portion of clean air is mixed with the incoming sample air. Using this feature, the incoming sample concentration levels can be diluted between 50 and 80%.

  • Page 78: Figure 6-15 Bc 1054 Dilution Flow System Diagram

    The Dilution Flow System is only useable with a 2 LPM sample flow rate. If the Dilution Flow System is engaged while the BC 1054 is configured for 5 LPM flow, sample flow rate will automatically be changed to 2 LPM and a prompt will appear requiring a flow calibration.

  • Page 79: Leak Check

    TSP inlet as shown in Figure 2-1, but instead is installed directly on the back of the BC 1054 (see section 2.3.2). This is because the sample flow will now include both the air flow from the sample inlet and the dilution air flow paths. Therefore, the 2 LPM flow rate will only be present after the dilution air is added to the sample air.

  • Page 80: Calibration Procedures

    If the Dilution Flow System is detected by the BC 1054, this action will also close the three-way solenoid valve in the dilution flow path to isolate it from the primary sample path.

  • Page 81: Bx-597A Digital Ambient Sensor Field Calibration

    The BC 1054 has a system of calibration menus which allow the operator to audit or calibrate various system parameters for optimal performance. It is recommended that airflow control parameters (AT, BP, FLOW) be audited monthly and calibrated quarterly during continuous operation. The exact frequency may vary depending on local conditions and the data validation requirements established by the sampling program administrator.

  • Page 82: Figure 6-20 At Standard Input Screen

    AT Calibration screen (Figure 6-21).Press the CALIBRATE button in the bottom right corner. The AT value should change to match the STANDARD value when CALIBRATE is pressed. Figure 6-22 BP Standard Input Screen Page 80 BC 1054-9805 REV A...

  • Page 83: Sample Flow Sensor Field Calibration

    Flow calibrations require a traceable flow audit calibration device, and traceable standards for temperature and pressure. The Met One Swift 25.0 and similar particulate sampler flow calibrators work well. Attach the flow meter to the BC 1054 sample inlet. The Sample Flow screen location: Side Menu Pane>Calibration>Sample Flow.

  • Page 84: Sample Flow Rate Field Calibration With Dilution Flow System

    The CALIBRATE DILUTION screen is used for field audits or calibrations of the dilution flow measurement of the BC 1054 Dilution Flow System. The sample flow sensor should be calibrated before calibration of the dilution flow sensor.

  • Page 85: Figure 6-26 Dilution Flow Test Point

    Figure 6-26 Dilution Flow Test Point If the dilution flow system is connected to the BC 1054 after the main flow has been calibrated at 5 lpm, Figure 6-27 warning will appear. The main sample flow will need to be calibrated at 2 lpm before calibrating the Dilution Flow system.

  • Page 86: Figure 6-29 Dilution Low Flow Set Point

    NOTE: If the final calibration does not match the flow standard device, repeat the steps above. If the flow still does not calibrate properly, press the DEFAULT button (Figure 6-28 Dilution Flow Audit Screen and repeat the calibration steps again. Page 84 BC 1054-9805 REV A...

  • Page 87: K Factor Calibration

    The K factors are direct multipliers applied to the concentration measurements. All concentration data stored in the BC 1054 will be affected by these K factors. Only the values reported in the VERIFY CAL menu are not affected by these K factors.

  • Page 88: Verify Calibration (Optical Span Test)

    Press on a channel in the dropdown list to make a selection. Press the AUTO ADJUST button to initiate the BC 1054 automatic calibration process. The selected LED will be set to Figure 6-35 LED Calibration Main Screen the best value.

  • Page 89: Figure 6-36 Verify Calibration Main Screen

    Figure 6-38. Care should be exercised to avoid breaking or damaging the tape. Figure 6-38 Losening Filter Tape For Cover Removal Loosen the two thumb screws on the measurement head module, remove the cover, and then re-install the tape as normal shown in Figure 6-39. BC 1054-9805 REV A Page 87...

  • Page 90: Figure 6-39 Measurement Head Cover Removal

    At the end of the ZERO portion of the test, the measurement head will raise and the display will show INSERT ND FILTER as shown in Figure 6-42. Figure 6-41 Zero Test Count Down Screen Page 88 BC 1054-9805 REV A...

  • Page 91: Figure 6-42 Nd Filter Test Screen

    The values should be within ± 5% of the values indicated on the label inside the Span Check Membrane holder mounted on the inside of the door of the BC 1054. Record the results and then Press CONTINUE. Figure 6-44 ND Filter Test Results Screen...

  • Page 92: Figure 6-45 Verify Calibration Compleation

    The test should be run again with particular attention paid to the filter tape remains stationary. If the test still fails, contact the Met One Instruments, Inc. service department for assistance. See section 1.2 for contact details.

  • Page 93: Data Retrieval

    Exporting Data to a USB Stick Exporting data from the BC 1054 to a flash or thumb drive is the fastest and recommended way to retrieve data. The EXPORT DATA Screen location: Side Menu Pane>Export.

  • Page 94: Digital Communications And Data Retrieval

    Data file as a CSV file. The Data file contains all the raw unformatted fields recorded by the BC 1054. ARCHIVE: Contains the raw CSV files for all the data recorded by the BC 1054. This is generally only useful for service issues.

  • Page 95: Usb Type B Connection

    7.2.1 USB Type B Connection BC 1054 monitors also include a USB Type B port (USB COMM) located on back panel next to the Ethernet port. The USB connection speed is the fastest out of the connection types on the rear panel.

  • Page 96: Ethernet Connection

    The Ethernet connection can be used for local networks and remote communications with the BC 1054 if internet is available at the sample site. See section 4.3.3 Ethernet Configuration for details on setting up the IP Address for Ethernet Communications. The Ethernet communication speed for this port is very fast.

  • Page 97: Figure 7-6 Settings File Example

    Figure 7-6 Settings File Example The settings file also contains encrypted Factory Settings, not shown, at the end of the Settings file report. BC 1054-9805 REV A Page 95...

  • Page 98: Alarm Log File

    7.3.3 User File The top of the BC 1054 user file contains the header information for the file. The first line contains the name of the report, the second line contains the time stamp at which the report was requested, and the third line contains the location id and the serial number of the device.

  • Page 99: Diagnostics File

    7.3.4 Diagnostics File The top of the BC 1054 data files starts with the time and date of the download followed by the LOCATION ID and the Met One serial number of the monitor. Next is the data file header that indicates the order and content of the data parameter columns. Each row contains one complete data record.

  • Page 100: Terminal Utility Data Retrieval And Communications

    Terminal Utility Data Retrieval and communications The BC 1054 supports a system of ASCII based terminal commands and Escape commands that can be used to manually collect data records or to remotely change some of the settings in the instrument through the serial port. These commands can be...

  • Page 101: User Communication

    Press the Enter key three times to enter User Communication mode. An asterisk character appears confirming that the BC 1054 has entered the mode and that the instrument is ready for a new command. Commands will be echoed back from the instrument and an asterisk will appear after a command has completed.

  • Page 102: Table 7-1 Terminal Mode And Escape Commands

    Get/Set dilution control – $ DFPCT Get/Set dilution flow percentage – $ DFSYS Report Dilution System presence – $ Get/Set User K factor for each channel, x = 1..10, k 1 = BC1, k 2 = BC2, etc Page 100 BC 1054-9805 REV A...

  • Page 103: Bayern-Hessen Communication Protocol

    This is a polled type protocol. Only the DA command (for Data Query) is supported for data retrieval. When the DA command is sent, the BC 1054 responds with the current measurement data. The command structure for the DA data query command is as follows: <STX>DA<address><ETX><BCC>...
  • Page 104 Space provided for future use in special functions. It currently consists of a string of six zeroes. An Example follows: Inquiry: <STX>DA<CR> Response: <STX>MD03 001 +2578+02 00 00 023 000000<SP> 002 +5681+00 00 00 023 000000<SP> 003 +1001+03 00 00 023 000000<CR><LF> Page 102 BC 1054-9805 REV A...

  • Page 105: Parts And Accessories

    8. PARTS and ACCESSORIES The following parts are available from Met One Instruments for maintenance, replacement, service, and upgrades. If unsure about a part, please contact the technical service department. Some of these parts may require technical skills or special instructions before use or installation.
  • Page 106 BX-597A Digital Sensor Cable, 25 foot length 510634 Power Supply, AC/DC Switching Adapter, 12V, 8.5A 9049-5 Flow Sensor Assembly (Dilution System) Pump Module, Dilution Flow System 82885 Solenoid, 3 Way, Dilution Flow System 82886 Page 104 BC 1054-9805 REV A...
  • Page 107 82887 Filter, Dilution Flow System 8658-2 Inlet cyclone O-Ring replacement kit 550065 Serial Cable, RS-232, DB-9 Male to Female Fan, Box Heater Circulation 590080 USB Cable 500784 390021 Clock Battery Assembly BC 1054-9805 REV A Page 105...

  • Page 108: Principals Of Operation

    1054 filter tape is used which extends the possible period of unattended operation to several months under most conditions. In the BC 1054 transmission of light coming from light emitting diodes is measured across filter tape onto which sampled aerosol containing BC is being accumulated. Reference transmission across a clean portion of the filter tape is simultaneously measured.
  • Page 109 ����(������������) is the part of the difference between the true aerosol absorption coefficient and filter-based aerosol absorption that is constant and depends only on the filter medium. the filter-based absorption coefficient that is not constant, but instead is attenuation- dependent. BC 1054-9805 REV A Page 107...

  • Page 110: Instrument Calibration

    ∙���� ������������ Instrument calibration The Met One Instruments BC 1054 has as its default calibration values the historically change in filter media. This is shown in Equation 7 and Equation 8. Note that ���� = 2.14. used mass absorption cross sections “MACS” shown in Equation 1 but adjusted for the ������������������������...

  • Page 111: Filter Media And Loading Effects

    Gilardoni, S., Vignati, E., Wilson, J., “Using measurements for evaluation of black carbon modeling” Atmos. Chem. Phys. 11:439-455 2011. Jennings, S. G., Pinnick, R. G., “Relationships between visible extinction, absorption and mass concentration of carbonaceous smokes”, Atmospheric Environment 14:1123-1129 1980. BC 1054-9805 REV A Page 109...

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