Met One ES-642 Remote Particulate Monitor

Specifications Sheet

ItemDailyWeeklyMonthly
Met One ES-642 Remote Particulate Monitor $135 $315 $900
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Met One ES-642 Sharp Cut Cyclone PM2.5 $10 $20 $50
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Met One ES-642 Sharp Cut Cyclone PM10 $10 $20 $50
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The Met One ES-642 Remote Particulate Monitor is an industrial air quality sensor designed to provide accurate measurements of particle concentration in both indoor and outdoor environments. The unit is supplied in a  rugged weatherproof enclosure.

It includes an LCD display to provide information about particulate concentration, flow rate, instrument status and power. The electronics and optical system are protected from moisture by a built-in intake heater that is  humidity level controlled. The heater power is regulated to maintain a minimum humidity level. Additional features include a purge air system and an automatic zero calibration routine.

The sensor can be wall mounted or installed on a vertical mast up to 3 inches in diameter. The ES-642 is supplied with a 10 foot cable and connector for power (15 to 40 VDC) and signal output.

The ES-642 measures particulate concentration using a highly sensitive forward scatter laser nephelometer, having a measurement range of 0 to 100 mg/cubic meter or 0 to 100,000 ug/cubic meter. Optional sharp-cut  cyclones are used to set the measurement level of the ES-642.

As supplied it provides particulate monitoring for TSP. With the addition of the sharp-cut cyclone it can be set for particulate smaller than PM10 or smaller than PM2.5, or PM1. The accuracyof the instrument is +/-5% based on a traceable PSL 0.6 micron reference standard.