Delta OHM PMBsense-A, Operating Manual

Page: 4 / 24

PM[B]sense
- 4 -
V1.3
2 TECHNICAL SPECIFICATIONS
Particulate Matter
Measuring principle Laser scattering
Measured pollutants PM1.0, PM2.5 and PM10
Measuring range 0…1000 µg/m
3
(for each pollutant)
Particle size detection range
∅
0.3…10 µm
Linearity error < 5%
Repeatability < 3%
Sensor warm up time 15 s
Sensor lifetime 5 years approx. in 5 minutes cyclic operating mode (default)
> 10,000 hours in continuous operating mode (1 meas./s)
Temperature drift < 0.01 µg/m
3
/°C
CO
2
( only PMBsense… )
Measuring principle Double wavelength NDIR
Measuring range 0…5000 ppm
Accuracy
±
(50 ppm+3% of measurement) @ 25 °C and 1013 hPa
Response time < 120 s (air speed= 2 m/s)
Long-term stability 5% of measurement / 5 years
Temperature drift 1 ppm/°C
General specifications
Output RS485 with Modbus-RTU or ASCII proprietary protocol
Only
PMsense-A : 2 x analog 4…20 mA (R
Lmax
= 500
Ω
); on
request 2 x 0…10 V (R
Lmin
= 10 k
Ω
)
Power supply 7…30 Vdc
(15…30 Vdc for 0…10 V analog outputs)
Power consumption 25 mA @ 24 Vdc during measurement
4 mA in stand-by (only for cyclic operating mode)
The indicated consumption does not include the consumption
due to the analog outputs
Connection M12 8-pole circular connector
Operating conditions -20…+70 °C / 0…95 %RH / 500…1500 hPa
Housing material Polycarbonate
Protection degree Housing equipped with a rain-proof and UV resistant inlet air
filter – IP 53
Dimensions 120 x 94 x 71 (excluding M12 connector)
Weight 330 g