Met One Instruments : BT-645 Portable Dust Monitor
Met One Instruments’ BT‐645 Portable Dust Monitor has been designed to continuously measure and record particulate information for indoor work place and public space environments. Our BT-645 optical sensor, matched electronics and backlit display, are enclosed in a rugged metal enclosure to protect the instrument during normal daily use.
Supplied accessories:
User Manual, USB Cable, Communications Software (Comet), AC Adapter / Battery Charger and NIST Certificate of Calibration
Met One Instruments’ BT‐645 Portable Dust Monitor has been designed to continuously measure and record particulate information for indoor work place and public space environments. Our BT-645 optical sensor, matched electronics and backlit display, are enclosed in a rugged metal enclosure to protect the instrument during normal daily use.
Supplied accessories:
User Manual, USB Cable, Communications Software (Comet), AC Adapter / Battery Charger and NIST Certificate of Calibration
| PERFORMANCE | |
| Concentration Range | 0 to 100 mg/m3 (0 to 100,000 µg/m3) |
| Sensitivity | 1 µg/m3 |
| Accuracy | 5% traceable to standard with 0.6 µm PSL |
| Measuring Time | 1, 5, 10, 15, 30 and 60 minutes |
| Flow Rate | 2 LPM Note: Measurement accuracy requires use of appropriate K-factor for the material being measured. |
| ELECTRICAL | |
| Light Source Power | Laser diode, 5 mW, 670 nm |
| Battery Life | 14.8V Li-ion (Lithium Ion) battery pack |
| AC Adapter/Charger | Over 10 hours continuous operation |
| Communications | Li-ion battery charger, 100 – 240 VAC, 50/60Hz to 16.8 V @ 1.8 A RS‐232, USB |
| Data Storage | Over 28,000 samples |
| PHYSICAL | |
| Weight | 3.7 lbs (1.7 kg) |
| Size | Height = 4.25” (10.8 cm) Width = 7.44” (18.9 cm) Thickness = 3.25” (5.4 cm) |
| ENVIRONMENTAL | |
| Operation Temperature | 0° to +50°C |
| Storage Temperature | -20° to +60°C |
| Relative Humidity | 90% (non‐condensing) |
| INTERFACE | |
| Display | 20 character x 4 line LCD |
| Keyboard | 6 key membrane type |
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