Instruction manual – Sierra Monitor Corporation 4105 User Manual
Page 13
Model 4105 Gas Sensor Module (12/02)
Page: 10
Instruction Manual
Model
4105-02
4105-03
4105-04
4105-05
4105-06
4105-07
4105-10
Gas
Comb.
O
2
CO
H
2
S
Cl
2
H
2
SO
2
Sensor Type
Catalytic
E.C.
E.C.
E.C
E.C.
E.C.
E.C.
Units
%LEL
% Vol
ppm
ppm
ppm
ppm
ppm
Range
0-100
0-25%
0-1000
0-100
0-10
0-1000
0-100
Resolution
3% F.S.
0.1% F.S.
1
0.1
0.1
2
0.5
Response Time
Note 1
10 sec.
25 sec.
30 sec.
60 sec.
30 sec.
20 sec.
to 90% of signal
Sensor Life
2
3 Yrs
2 yrs
2 yrs
2 yrs
2 yrs
2 yrs
2 yrs
Operating Range
Temperature
14 to 158
o
F 19 to 122
o
F 14 to 122
o
F 14 to 122
o
F 14 to 122
o
F 14 to 122
o
F 14 to 122
o
F
-10 to 75
o
C
-7 to 50
o
C
-10 to 50
o
C -10 to 50
o
C -10 to 50
o
C -10 to 50
o
C -10 to 50
o
C
Relative Humidity
10-95%
5-99%
15-90%
15-90%
15-90%
10-90%
15-90%
Pressure
10%
10%
10%
10%
10%
10%
10%
Electrical Data
Input Voltage DC
19-30VDC 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: 1. Step to 50% LEL within 10 sec, recovery to 10% LEL within 30 sec.
2. Sensor life is for use at standard temperature and pressure with occasional
exposure to the gas of interest
8.
SPECIFICATIONS