A
12-17 Combustible Gas Transmitter
O & M Manual
Rev-H, 7/15
- 7 -
SPECIFICATIONS
Range:
0-100% LEL (Lower Explosive Limit)
Display:
3 Digit LCD
Response Time (T90):
10 Seconds
Sensitivity:
1% LEL
Zero Drift:
< 2%/Month
Power:
12-28 VDC, 12 VDC at 150mA nominal, 200mA max.
24 VDC at 75mA nominal, 100mA max.
Output:
4-20 mA DC,
375 ohms maximum load at 12 VDC
850 ohms maximum load at 24 VDC
1000 ohms maximum load at 28 VDC
Controls:
Four magnetic control switches operable through glass window
Temperature Limits:
-40
°
to + 70
°
C.
Sensor Type:
Catalytic bead type, poison resistant
Sensor Option:
Auto-Test gas generator
Sensor Materials:
316 Stainless Steel
Transmitter Enclosure:
Cast Aluminum with Epoxy Coating, Glass window
Area Classification:
NEC Class I, Groups B, C, & D, Class II, Groups E, F & G, Class III
Connections:
3 wire, 20 AWG, 500 feet max. (150 m.)
Sensor Cable Length:
Maximum 50 feet for separation between sensor and transmitter
Weight:
4 lbs. (1.4 Kg.)
