The ES-642 Remote Dust Monitor is an industrial air quality sensor designed to provide real time particle concentration measurements in both indoor and outdoor environments.
The ES-642 has flexible serial ports and analog outputs to support various data collection systems. The serial ports support MODBUS and simple ASCII commands via RS-232 or RS-485. Analog outputs include both 0-10 volts and 4-20 mA.
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 inch in diameter. The ES-642 is supplied with a 10 ft 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 accuracy of the instrument is ±5% based on a traceable PSL 0.6 micron reference standard.
|Measurement Principle:||Particulate concentration by forward light scatter laser Nephelometer|
|Available Cut Points:||TSP Inlet Standard. PM10, PM2.5, and PM1 sharp-cut cyclone inlets available.|
|Measurement Range:||0 to 100 mg/m3 (0 to 100,000 mg/m3)|
|Measurement Sensitivity:||.001 mg/m3.|
|Nephelometer Accuracy:||± 5% traceable standard with 0.6um PSL.|
|Particle Size Sensitivity:||0.1 to 100 micron.|
|Display:||2 X 16 backlit LCD. Provides concentration, flow and status information.|
|Zero Calibration:||Automatic Zero Calibration every hour or as programmed from 1 to 999 minutes.|
|Flow Rate:||2.0 liters/minute ± 0.1 lpm.|
|Input Voltage:||11 – 40 VDC|
|Power Consumption:||12 VDC = 300 mA (heater off), 1.2 A (heater on)
24 VDC = 140 mA (heater off), 0.6 A (heater on)
|Analog Output:||4-20 mA and 0 – 10 VDC.|
|Serial Ports:||RS-232 and RS-485|
|Serial Protocols:||ASCII Text data format and MODBUS RTU.|
|Alarm Output:||Normally open and normally closed relay 30 VDC @ 1A maximum.|
|Operating Temperature:||-10 to +50°C. (Ambient Temperature Sensor Range -30 to +50°C).|
|Barometric Pressure:||600 to 1040 mbar pressure sensor range.|
|Ambient Humidity Range:||0 to 90% RH, non-condensing.|
|Intake Moisture Control:||Automatic 10 Watt inlet heater module controlled to sample RH set point.|
|Factory Service Interval:||24 Months typical, under continuous use in normal ambient air.|
|Mounting Options:||Mounting bracket standard (wall or 2” vertical mast). Optional EX-905 tripod.|
|Unit Weight:||2.7 kg (6.0 lbs.)|
|Unit Dimensions:||22.9cm high, 17.8cm wide, 10.8cm deep. (9.0” x 7.0” x 4.25”). w/out inlet assy.
48.3cm high, 17.8cm wide, 10.8cm deep. (19.0” x 7.0” x 4.25”). w/ inlet assy.