Description
The Met One Instruments ES-642 remote dust monitor is an industrial air-quality sensor designed to provide accurate particle concentration measurements in indoor and outdoor environments. The unit is supplied in a rugged weatherproof enclosure and 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 comes with a 10 ft cable and connector for power (15 to 40 VDC) and signal output.
Key Features
- TSP, PM10, PM2.5 and PM1 measurements (TSP comes standard, the others are options)
- Particulate concentration by forward light scatter laser nephelometer
- 0 to 100mg/m3 (100,000ug/m3) measurement range
- .001 measurement sensitivity
- 2.0 liter per minute flow rate
- Automatic zero calibration
- Built-in heated inlet
- 4-20mA and 0 to 10 VDC analogue output
- 15 to 40 VDC at 1.5 amp power consumption
- 350mA power consumption (heater off) and 1.1 amp with heater on at 15 VDC
- RS485 and RS232 communications
- Relay contact for alarm output
- Wall, pole or tripod mounted
- 0 to 50 deg C operating temperature
- Can be powered by mains, battery or solar panels
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, measurements are set for particulate smaller than PM10 or smaller than PM2.5, or PM1. The instrument’s accuracy is set for particles +/-5% based on a traceable PSL 0.6um reference standard.
Applications
- Building Automation
- Environmental Clean Up Sites
- Air Pollution Level Monitoring
- Dust Level Warning Systems
- Military Applications
- Surface Emissions Modeling
- HVAC Control
- Industrial Hygiene
