BT-610 MANUAL Met One Instruments, Inc 1600 Washington Blvd. Grants Pass, Oregon 97526 Telephone 541-471-7111 Facsimile 541-471-7116 BT-610-9800 Rev A Regional Service 3206 Main St.
Copyright Notice BT-610 Manual © Copyright 2012 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 by any means without the express written permission of Met One Instruments, Inc. Technical Support Should you require support, please consult your printed documentation to resolve your problem.
Table of Contents 1. Introduction ........................................................................................................... 4 2. Setup ...................................................................................................................... 4 2.1. Unpacking ............................................................................................................................ 4 2.2. Layout .................................................................................
5.6.4. Favorites Analog Output Scaling (A-SCALE) ................................................................ 20 5.7. Calibrate Flow Screen ........................................................................................................ 21 5.8. Set Sizes Screen ................................................................................................................ 21 5.9. Set Clock Screen ..................................................................................................
1. Introduction The BT-610 is a portable airborne particle counter with a small stable footprint. This allows you to move it around and set it down rather than holding it in your hand while sampling. The large character backlit LCD display provides easy viewing from distances exceeding 3 meters. Other key features include: 6 particle sizes (Defaults: 0.3, 0.5, 1.0, 2.0, 5.0 and 10 m) User size settings (0.1m steps from 0.3 to 2m, 0.
BT-610 Manual Page 5 BT-610-9800 Rev A
Iso-Kinetic Inlet BT-610 Zero Filter MOI P/N: G3111 MOI P/N: G3110 Manual Battery Charger MOI P/N: BT-6109800 MOI P/N: 80643 Calibration Certificate USB Cable MOI P/N: BT-6109600 MOI P/N: 500784 Particle View Software CD Comet Software CD MOI P/N: 80248 Printer Paper MOI P/N: 750514 BT-610 Manual Page 6 BT-610-9800 Rev A
Figure 1 – Standard Equipment BT-610 Optional Equipment Temperature & Humidity Probe MOI P/N: G3120 DwyerTM Ball Flow Meter Serial Cable MOI P/N: 550065 MOI P/N: 9801 Figure 2 – Optional Equipment BT-610 Manual Page 7 BT-610-9800 Rev A
2.2. Layout Figure 3 shows the layout of the BT-610 and the following table provides a description of the components.
Power Switch Charger Jack USB for Data Transfer (on side) RS-232 USB I/O RS 485 Analog Out Figure 3 – BT-610 Layout BT-610 Manual Page 9 BT-610-9800 Rev A
Component Description Display 4X20 character LCD display (backlit) Keyboard 8 key membrane keypad Printer On Board thermal printer Power Switch Switch that turns the BT-610 on or off (up for on). Charger Jack Input jack for the battery charger. This jack charges the internal battery pack and provides continuous operating power for the unit. Inlet Nozzle Ambient air inlet nozzle. Connect isokinetic probe to reduce turbulence in the air sample.
6. The unit is ready for use. 3. User Interface The BT-610 user interface is composed of an 8 button keypad and a LCD display. The following table describes keypad functionality. Note: Some keys have more than one function. Key Starts or stops a sample (Operate or Main Menu Screen). Starts USB data transfer (Copy to USB Drive Screen). Starts printing data (Print Data Screen). Recalls the selected data (Recall Data Screen). DATA Loads the Data Menu Screen.
4.2. Printer Operation Figure 5 – Open Printer Door If there is no paper loaded in the printer, the indicator light on the bottom right of the printer will glow orange. To load paper into the printer, lift the printer door latch from the center until to door opens. Paper Advance Figure 6 – Install Paper and Close Printer Door Place a roll of paper in the printer bay with the free end up and coming from the back of the roll. Close the printer door and the green indicator light should light.
4.3. Operate Screen The Operate Screen displays the date/time, sample status, current sample data and previous sample data. Figure 7 shows the Operate Screen. 15 AUG’10 11:23 L001 0.3µ 0 CF 0.5µ 0 CF 0.7µ 0 CF 1.0µ 0 CF 2.0µ 0 CF 5.0µ 0 CF Figure 7 – Operate Screen The top line of the Operate Screen is reserved for the normal header (date, time and location) or status/alarm messages depending upon the machine status. The top line remains stationary while the other 3 lines scroll to display the full list.
4.3.2. Sampling The Operate Screen displays current sample information when the unit is sampling (real time data). Concentration values (/L, CF, M3) are time dependent so these values may fluctuate early in the sample; however, after several seconds the measurement will stabilize. Longer samples (e.g. 60 seconds) will improve concentration measurement accuracy. Figure 9 shows the Operate Screen while sampling with RH/Temp probe attached. COUNTING… 58 L001 0.3µ 29,780 CF 0.
4.3.5. Warnings / Errors The BT-610 displays warning/error messages on the top line of the Operate Screen. These messages alternate with the normal date/time header. The following table lists the warning/error messages: Display Message Description Count alarm. The count is >= the alarm limit. LOW BATTERY! Low battery warning. Less than 15 minutes of normal operation remaining. Recharge the battery FLOW ERROR! The sample flow rate is not within +/- 10% of the nominal 0.1 CFM flow rate.
4.4.6. Sample Timing The following figures depict the sample timing sequence for both manual and auto sampling modes. Figure 11 shows the timing for manual sample mode. Figure 12 shows the timing for auto sample mode. Start Time Sample Time Stop Time Figure 11 – Manual Mode Sample Start Time Sample Time Hold Time Sample Time Stop Time Figure 12 – Auto Mode Sample 5. Main Menu The Main Menu is accessible by pressing the menu key on the Operate Screen. The table below shows the Main Menu items.
SET CLOCK Set the date and time. Set Clock Screen SET CONTRAST Adjust the display contrast. Set Contrast Screen ABOUT Display firmware version and serial number. About Screen 5.1. Edit Main Menu Items To change settings, press Menu to display the Main Menu, press ▲ or ▼ to navigate to the desired item and press Enter to display the item view/edit screen. To edit pick list items (e.g. Sample Setup - Auto/Manual), press ▲ or ▼ to navigate to the item. Press Enter to select the item.
5.2.4. Samples The samples setting controls the number of samples to take as illustrated below. Selection 5.3. Description REPEAT Repeat configures the unit for continuous sampling. SINGLE Single configures the unit for a single sample. 002-999 Configures the unit to take N samples. Settings Screen Figure 15 shows the Settings Screen. The 4 parameters are covered in the sections immediately following. COUNT UNITS: CF TEMPERATURE: C Figure 15 – Settings Screen 5.3.1.
5.4.1. Report Type The Report setting determines the output format for the Serial Port. The choices are NONE, CSV and PRINTER. When set to NONE, the unit will not automatically output the reading at the end of a sample to the Serial Port. CSV is a Comma Separated Values output format suitable for importing into a spreadsheet. PRINTER is the same format as the screen and panel mounted printer. This setting does not affect the panel mounted printer which always prints in PRINTER format. 5.4.2.
5.6. Favorites Screen The Favorites mode eliminates the need to scroll the display when monitoring two nonadjacent sizes. The Favorites mode also provides count alarm limits and analog output scaling for the Favorites (2 count channels). The Favorites mode controls the display (real time and history) and printer format. The CSV serial output includes all 6 sizes. Figure 18 – Favorites shows the Favorites screen. FAVORITES ON SIZE ALARM A-SCALE 0.3 0500000 0500000 5.
5.7. Calibrate Flow Screen The BT-610 has a factory calibrated flow rate of 0.1 CFM (2.83 LPM). Under normal circumstances, the integrated flow control system will maintain flow within +/- 5% of this flow rate. Use the following procedure to calibrate the flow rate when a periodic flow rate check (Section 9.1.2) indicates a flow rate error greater than +/- 5%. 1. Connect a reference flow meter to the inlet fitting on the top of the unit. 2.
5.9. Set Clock Screen To set the date and time select SET CLOCK from the menu. Figure 22 shows the Set Clock Screen and the following table describes the date and time formats. SET CLOCK DATE: 18 AUG’06 TIME: 11:25:36 Figure 22 – Set Clock Screen Date / Time Formats Date dd mmm’yy dd=day, mmm=month, yy=year Time hh:mm:ss Hh=hours, mm=minutes, ss=seconds 5.10. Set Contrast Screen Press ◄ or ► to improve display quality. Press Enter to save the setting or ESC to cancel the change.
COPY TO USB DRIVE RECALL DATA PRINT DATA MEMORY Figure 25 – Data Screen 6.1. Copy to USB Drive Figure 26 shows the Copy Data Screen. The BT-610 will copy all data from the displayed date/time to current time. Initially, the date/time will be the first sample record so all records will be copied. To reduce transfer time, press Enter and change the date/time to a more recent date/time.
6.3. Printing Sample Data Stored sample events can be printed via the serial port within a user selected range. To access the printing feature, press the Data key then select PRINT DATA from the menu. Figure 29 shows the Print Data Screen. PRINT DATA SERIAL LOCATION: 000 01 JAN’00 00:00 18 AUG’06 13:23 Figure 29 – Print Data Screen This screen allows the user to choose whether the output goes to the panel mounted printer or the serial port.
6.4. Memory Screen The BT-610 memory is composed of a single file which contains the data from sample events. Every time a sample is completed, the BT-610 stores that data into the memory. The BT-610 memory is circular, meaning when the memory is full, the unit will start overwriting the oldest saved samples with new samples. BT-610 provides the user the ability to view the memory usage as well as clear the memory. 6.4.1.
attached. Charge the battery before storing the BT-610. Storing a discharged battery will degrade its performance. 8. Serial Communications BT-610 provides serial communications via USB and DB9 connectors located on the back of the unit. The following sections discuss the various serial communications. ATTENTION: The USB drivers must be installed before connecting the BT-610 USB port to your computer.
8.1.2. User Mode User Mode is intended for direct user interaction. In User Mode, all incoming characters are echoed back to the user. The user can wake the unit into User Mode by sending 3 (Enter Key) characters within 3 seconds. This prompt character “*” will be displayed when the unit is in Terminal Mode. The unit will return to Computer Mode after 2 minutes of inactivity on the serial port. The Q command will return the unit immediately to Computer Mode.
8.2. Real Time Output The real time output occurs when the unit finishes a sample. The output format is either a comma separated value (CSV) or a printer style depending on the Serial Report mode.
8.3. Comma Separated Value (CSV) The CSV output fields are both comma separated and fixed length. CSV Header (Note 1): Time,Size1,Count1(M3),Size2,Count2(M3),Size3,Count3(M3),Size4,Count4(M3),Size5, Count5(M3),Size6,Count6(M3),AT(C),RH(%),Location,Seconds,Fav1Size,Fav2Size,Status CSV Example Record: 2013-09-30 10:04:05,00.3,08562345,00.5,01867184,00.7,00654892,01.0,00245849,02.0,00055104,05.0,0 0031790,+023,040,001,010,00.3,00.
Bit Status Bits Value Condition Notes (for table above): 1. CSV header included for multiple record transfers 0 OK (no alarms/errors) 0 1 1 Count alarm size 1 2 Count alarm size 2 2 4 Not used 8 Not used 3 4 5 6 7 16 32 64 128 2. 3. 4. 5. like All Data (2) or New Data (3). The CSV header does not print in Computer or Network mode. Units determined by product setting. Temperature and RH will be spaces (, , ) if Temp/RH probe is not attached.
GND + - Figure 32 – RS485 Connector G B+ A- Unit n Unit 1 Computer G G B+ A- B+ A- Figure 33 – RS485 Network 9. Maintenance Due to the nature of the instrument, there are no customer serviceable components in the BT-610. The case of the BT-610 should never be removed or opened for any reason. Opening or removing the case of the BT-610 voids the warranty and may result in exposure to laser radiation, which can cause eye injury. 9.1.
9.1.1. Zero Count Test Air leaks or debris in the particle sensor can cause false counts which may result in significant count errors when sampling clean environments. Perform the following zero count test weekly to ensure proper operation: 1. Attach the zero count filter to the inlet nozzle (P/N G3111). 2. Configure the unit as follows: Sample Mode = MANUAL, Sample Time = 60 seconds, Volume = Total Count (TC) 3. Start and complete a sample. 4. The smallest particle size should have a count ≤ 1. 9.1.2.
10. Troubleshooting The following section covers some common failure symptoms, causes and solutions. It is important to note that there are no customer serviceable components in this product. The BT-610 case should never be removed or opened for any reason. Opening or removing the case will void the warranty and may result in exposure to laser radiation, which can cause eye injury.
11. Specifications Performance Particle Size Range Calibrated Sizes User Size Settings Concentration Range Accuracy Sensitivity Flow Rate Sample Time Hold Time Electrical Light Source Power AC Adapter/Charger Printer Communications Standards 0.3µm - 10µm, 6 channels 0.3 µm, 0.5µm, 1.0µm, 2.0µm 5.0µm and 10µm 0.1µm steps from 0.3µm - 2.0µm 0.5µm steps from 2.0µm - 10µm 0 – 3,000,000 particles per cubic foot (105,900 particle/L) ± 10% to calibration aerosol 0.3 µm 0.1 cfm (2.
12. Warranty / Service Warranty The BT-610 is warranted against defects and workmanship for a period of two (2) years from the ship date. Any product found to be defective during the warranty period will, at the option of Met One Instruments, Inc., be replaced or repaired. In no case shall the liability of Met One Instruments, Inc. exceed the purchase price of the product.
