Instruction manual – Sierra Monitor Corporation 4105 User Manual
Page 14
Instruction Manual
Model 4105 Gas Sensor Module (12/02)
Page: 11
Model
4105-12
4105-21
4105-22
4105-25
3
4105-26
3
Gas
NO
2
HCL
HCN
NH
3
HF
Sensor Type
E.C.
E.C.
E.C.
E.C.
E.C.
Units
ppm
ppm
ppm
ppm
ppm
Range
0-20
0-20
0-20
0-50
0-10
Resolution
0.2
0.5
0.1
0.1
0.5
Response Time
35 sec.
150 sec
70 sec.
45 sec.
30 sec.
to 90% of signal
Sensor Life
2
2 yrs
2 yrs
2 yrs
N/A
N/A
Operating Range
Temperature
14 to 122
o
F 14 to 122
o
F 14 to 122
o
F 14 to 113
o
F 14 to 113
o
F
-10 to 50
o
C -10 to 50
o
C -10 to 50
o
C -10 to 45
o
C -10 to 45
o
C
Relative Humidity
15-90%
15-90%
15-90%
20-90%
20-90%
Pressure
10%
10%
10%
10%
10%
Electrical Data
Input Voltage DC
19-30 VDC at less than 100 mA
Output-Normal
4-20 mA DC linear
Output-Trouble
0 mA
Construction
Dimensions
H: 7.6", D: 4.6", W: 4.2" (19.3 x 11.7 x 10.7 cm)
Weight (Module)
5.0 lb. (2.2 kg)
Mounting
3/4" NPT
Housing
Explosion proof
(NEMA 7) / NEMA 4X Enclosure (Div. I, Class 1, Groups B, C, D)
Notes: 2. Sensor life is for use at standard temperature and pressure with occasional exposure to the gas of interest
3. Diffusion via membrane. Dimensions are H: 10.2", D: 6.0", W: 6.0" (25.9 x 15.2x 15.2 cm)
8.
SPECIFICATIONS (Continued)