These sensors have 4 fixed particle size channels and are equipped with an integral critical orifice and flow sensor to provide a stable flow rate from an external vacuum source. Integration into a building automation or facility monitoring system is easy via isolated RS-485 Modbus communication.
Channel Sizes |
0.5 μm and 5.0 μm |
Counting Efficiency |
50% at 0.5 μm; 100% for particles > 0.75 μm (per JIS) |
Concentration Limits |
500,000 particles / ft3 at 5% coincidence loss |
Light Source |
Long life laser diode |
Zero Count Level |
<1 count / 5 minutes (per JIS B9921) |
Flow Rate |
1.0 CFM (28.3 LPM) |
Flow Control |
Critical orifice |
Vacuum Requirements |
External vacuum >15″ (38.1 cm) of Hg Calibration NIST Traceable |
Sample Probe/Tubing |
Isokinetic sampling probe |
Communication Interface |
Modbus™ RTU or ASCII outputs (specified upon order) |
Power |
9-30 VDC |
Dimensions (L x W x H) |
1.8” x 3.7“ x 1.5” (4.5 cm x 9.3 cm x 3.8 cm) does not include probe |
Weight |
0.62 lb (0.28 kg) |
Standards |
ISO 21501-4 and JIS B9921 |
Warranty |
1 year limited warranty |
Operating Conditions |
5° to 35°C 20% to 95%RH non-condensing |
Storage Conditions |
-20° to 50°C Up to 98%RH non-condensing |
Optional Accessories |
Isokinetic sampling probe, purge filter, data cable, vacuum and sample tubing |