Appendices, Model 4501-xx toxic gas sensor module – Sierra Monitor Corporation 4501-05 User Manual
Page 23
Model 4501-XX Toxic Gas Sensor Module
Page 19 of 35
8. APPENDICES
8.1 APPENDIX A: SPECIFICATIONS
Sensor:
Type: Electrochemical
(1) Optional ranges available
(2) Response time to 90% full signal value for applied concentration
(3) Sensor life typical for use at standard temperature and pressure with occasional exposure to gas of interest
(4) Sensor electrolyte needs to be recharged every six months
Output:
Display:
LCD, 2-line, 16-characters
Signal Output:
2-wire sensor powered analog 4-20 mA (Trouble: 3.6 mA)
Loop Resistance
800 ohm
Electrical Data:
Power consumption:
0.2 watts
Connection type:
2 wire loop-powered
Input voltage:
24 VDC nominal: 14-30VDC
RFI/EMI Protection:
EN50081-2, EN50082-2
Operating Range:
Extended Range
Sensor and 4-20 mA will continue to operate to -40
o
F (-40
o
C) but the
Operation:
LCD
display
will
decay
over time if exposed to temperatures below -4
o
(-20
o
C) for
significant time (not
applicable to 4501-
25)
Storage
Temperature:
-4
o
to 122
o
F(-20
o
to 50
o
C)
Max Range (1)
Zero Drift
Repeatability
Linearity
Resolution
Response Time (2)
Sensor Life (3)
4501-03 O
2
0-25% Vol.
+/- 0.5 Vol.
+/- 0.1 %
+/- 0.1 %
0.2% Vol.
<10 seconds
20 months
4501-04 CO
0-1200 PPM
+/- 1 PPM
+/- 1 PPM
+/- 1 PPM
0.5 PPM
<25 seconds
2 years
4501-05 H
2
S
0-100 PPM
+/- 0.5 PPM
+/- 1 PPM
+/- 1 PPM
0.1 PPM
<30 seconds
2 years
4501-06 Cl
2
0-10 PPM
+/- 0.5 PPM
+/- 0.5 PPM
+/- 0.5 PPM
0.1 PPM
<60 seconds
2 years
4501-08 ClO
2
0-3 PPM
+/- 0.5 PPM
+/- 0.5 PPM
+/- 0.5 PPM
0.1 PPM
<60 seconds
2 years
4501-10 SO
2
0-100 PPM
+/- 0.5 PPM
+/- 1 PPM
+/- 1 PPM
0.5 PPM
<20 seconds
2 years
4501-12 NO
2
0-20 PPM
+/- 0.5 PPM
+/- 0.5 PPM
+/- 0.5 PPM
0.2 PPM
<35 seconds
2 years
4501-25 NH
3
0-100 PPM
+/- 1.0 PPM
+/- 1.0 PPM
+/- 1.0 PPM
+/- 1 PPM
<30 seconds
(4)
4501-26 HF
0-10 PPM
+/- 0.5 PPM
+/- 0.5 PPM
+/- 0.5 PPM
+/- 0.5 PPM
<90 seconds
(4)
Ambient Temp (
o
F)
Ambient Temp (
o
C)
Relative Humidity
4501-03 O
2
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-04 CO
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-05 H
2
S
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-06 Cl
2
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-08 ClO
2
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-10 SO
2
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-12 NO
2
-4 to 122
o
F
-20 to 50
o
C
15 – 90%
4501-25 NH
3
+14 to 113
o
F
-10 to 45
o
C
20 – 90%
4501-26 HF
+14 to 113
o
F
-10 to 45
o
C
20 – 90%