Model 4501-XX Toxic Gas Sensor Module
8. APPENDICES
APPENDIX A: SPECIFICATIONS
Specifications:
Sensor:
4501-04
4501-05
4501-06
Max. Range (1)
0-1200 PPM
0-100 PPM
0-10 PPM
Zero Drift
+/- 1 PPM
+/- 0.5 PPM
+/- 0.5 PPM
Repeatability
+/- 1 PPM
+/- 1 PPM
+/- 0.5 PPM
Linearity
+/- 1 PPM
+/- 1 PPM
+/- 0.5 PPM
Resolution
0.5 PPM
0.1 PPM
0.1 PPM
Response Time (2)
<25 sec.
<30 sec.
<60 sec
Sensor Life (3)
2 years
2 years
2 years
(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
Output:
Display:
LCD, 2-line, 20-characters
Signal Output:
2-wire sensor powered analog 4-20 mA (Trouble: 3.6 mA)
Loop Resistance
800 ohm
Electrical Data:
Power consumption:
<160 milliwatts
Connection type:
2 wire
Input voltage:
24 VDC nominal: 14-30VDC, 2-wire loop powered
RFI/EMI Protection:
EN50081-2, EN50082-2
Operating Range:
4501-04 CO
4501-05 H2S
4501-06 Cl2
Ambient Temp (
o
F)
-4 to 122
o
F
-40 to 122
o
F
-4 to 122
o
F
Ambient Temp (
o
C)
-20 to 50
o
C
-40 to 50
o
C
-20 to 50
o
C
Relative Humidity
5 – 99%
5 – 99%
5 – 99%
Extended Range
Sensor and 4-20 mA will continue to operate to -40oF (-40oC) but the
Operation
LCD
display
will
decay
over time if exposed to temperatures below -4o (-
20o C) for significant time
Storage
Temperature:
-4o to 122 oF(-20o to 50oC)
Enclosure:
Dimensions:
7.0 x 3.6 x 4.0 inches (H x W x D)
(17.8 x 9.1 x 11.2 cm)
Weight:
4.4 lb. (2.0 Kg)
Material of Construction:
316 Stainless Steel
Enclosure:
NEMA
4X
Electrical Classification:
FM Approved:
Explosion proof, Class 1, Div. I, Groups B, C, D
Class 1, Zone 1, Group IIB+H2 IP66
Approvals:
FM Performance Approval:
Approval Standards: ISA-92.0.01, Part I-1998 and FM 3600
(4501-05
only)
Remote Sensor Option:
Distance Sensor to Transmitter: 4501-04
25
feet
4501-05
25
feet
4501-06
15
feet
Page: 18
