Introduction
Irm300 is one of the general ndir co2 gas modules, which adopting ndir principle, consists of carefully designed light chamber, precise electric circuit and intelligent software. With the help of single light source, dual channel detector, and
Unit
Storage temperature
Tstg
-20 to 80
¡ãc
Working temperature
Ta
0 to +50
¡ãc
Working humidity
Ha
0 to 90
% rh
Working pressure
Pa
0.8 to 1.2
Atm


Electric characteristics

Description
Symbol
Min.
Typical
Max.
Unit
Supply power
Vs
4.6
5
5.4
V
Maximum current
Imax

130
160-
Ma
Light current
Iavg

60
70
Ma
Frequency
F
0.2
1
2
Hz
Preheat time
Twarm
90
120
180
Sec

Performance characteristics
Description
Min
Typical
Max
Unit
Detection range
0
2000
50000
Ppm
Detection accuracy
-
¡¨¤60ppm¡¨¤5% fs
-
Ppm
T90
Diffusing
-
60
90
Sec
Pumping
-
10
20
Sec
Repeatability
Zero

<¡¨¤80

Ppm
50% fs
-
<¡¨¤8% fs
-

Lifetime
3
5
10
Year