parameter specification operating principle measures ambient particulate concentrations using beta ray attenuation u.s. epa designations pm10: fem (eqpm-0798-122), pm2.5: class iii fem, (eqpm-0308-170) approvals ce, nrc, tuv, california arb, iso 9001 performance accuracy exceeds us-epa class iii pm2.5 fem standards for additive and multiplicative bias measurement resolution 0.1 µg/m3 display resolution 1 µg/m3 lower detection limit < 4.8 µg/m3 (less than 4.0 µg/m3 typical) (2 ) 1 hour lower detection limit < 1.0 µg/m3 (2 ) 24 hour standard range 0 – 1.000 mg/m3 (0 - 1000 µg/m3) optional ranges 0 – 0.100, 0.200, 0.250, 0.500, 2.000, 5.000, 10.000 mg/m3 (special applications) measurement cycle time 1 hour flow rate 16.7 liters/minute adjustable 0–20 lpm range actual or standardized flow filter tape continuous glass fiber filter tape, 30mm x 21m roll > 60 days/roll span check automatic 0.800 mg (typical) span foil, verified hourly beta source 14c (carbon -14), 60 µci ±15 µci (< 2.22 x 106 beq), half-life 5730 years beta detector type photomultiplier tube with organic plastic scintillator environmental operating temperature 0 to +50??c ambient temperature -30?? to +60??c ambient humidity 0 – 90% rh, noncondensing sample humidity control active smart heater module, 10 – 99% rh setpoint enclosure weatherproof enclosure or shelter is required interface user interface menu-driven interface with 8 - l i n e 40-character lcd display and dynamic keypad analog output isolated 0 –1 vdc output standard. 0 –10 v, 4– 20 ma, 0 –16 ma switch-selectable serial interface rs - 232 two-way serial port for pc or modem communications printer output output-only serial port for data or diagnostic output to a pc or serial printer telemetry inputs clock reset (voltage or contact closure), telemeter fault (contact closure) alarm contact closures data error, tape fault, flow error, power failure, maintenance error reporting user-configurable available through serial port, display, and relay outputs memory 4369 records (182 days at 1 record/hr) electrical power supply 100 –230 vac, 50/60 hz. factory configured. power consumption less that 0.4 kw, 3.4 a, worst case with pump and smart heater running. physical weight 54 lbs (24.5 kg) without external accessories. unit dimensions height = 12.25” (31 cm) width = 17” (43 cm) depth = 16” (40 cm). | 
