Phau Ntawv Qhia

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2. Technical data
2.1. General parameters of the transducer
Power supply
 DC voltage
DC 20-30 V (nom DC 24 V)
 AC voltage
AC 20-28 V (nom AC 24 V)
Current consumption
 typical
30 mA
 max
100 mA
LED indicators
See section 3.5
Signal connection
Screw terminals in 5 mm pitch
(wire diameter ≤ 2.5 mm)
Housing dimensions
 without sampling mast
80x82x55 mm
 with sampling mast
80x82x280 mm
Weight
230g
Working environment
Dust-free, air, neutral gases
Working temperature
0ºC ÷ 50ºC
2.2. Parameters of CO2 measurement
Sensor model
MH-Z19B
Measurement range
0/400-2000 ppm
Measurement accuracy
± (5% of measured value + 50ppm)
Sampling period
5 s
Response time T90 *)
< 2 min
*) response time T90 is the time from moment of change of state to the moment when the
measurement value reaches 90% of the steady value.