The Fixed Gas Detection People
NEW! Oldham is pleased to introduce its wireless system with the OLCT 80 field detector/transmitter. This new model allows wireless connectivity in ATEX 1 zones.
Features and benefits of the OLCT 80 Wireless include:
Developed in compliance with the strictest specifications, OLCT 80 transmitters are the standard in the gas detection market.
Designed to meet the demanding needs of the largest industrial companies, the OLCT 80 is a major achievement in terms of technical performance and cost optimization. Available as remote version, flameproof or intrinsic safety approved sensors depending on gases to be detected. Detects O2, combustible, toxic and refrigerant gases. Non-intrusive, one-man calibration.
New XP IR infrared sensor for detection of combustible gases or CO2
Explosive, toxic and oxygen
Catalytic, Electrochemical, IR, Semiconductor
Stainless steel 316L
4-digit LCD display for measurement and one alphanumeric line for texts
Pictograms - backlighting
4 indicator lamps :
Power supply to sensor terminals:
Two independent inputs:
16 to 28 VDC ( catalytic / IR / SM cells)
12 to 28 VDC (electrochemical cell)
with digital link:
0.2 W (electrochemical cell) -1.3W(catalytic/SM) -4.5W(IR)
with I output at 25 mA :
0.9 W (electrochemical cell) -2W(catalytic/SM) -5.2W(IR)
with I output at 25 mA and relays activated:
2.4 W (electrochemical cell) -3.5W(catalytic/SM) -6.7W(IR)
Two analog inputs 4-20 mA (load resistance 120 Ω, can be used as binary)
Logic (relay contacts):
Standardized 4-20 mA output
Two independent opto-isolated RS 485 ports
I < 0.5 mA
2 programmable thresholds per channel
2A / 250 VAC / 30 VDC
Wiring / connection:
Basic version, 6 inputs : 4 M20 and 2 M25
On request: 3 additional,2 M20 and 1 M25
Load resistance on the 4-20 mA:
Under central unit 21 VDC: 128 ohms ( electrochemical cell ) - 32Ω(catalytic/SM)-16Ω(IR)
-25°C to +55°C
OLCT 80 : 3,5 kg
OLCT80 version IR : 5,3 kg
Certification Atex :
OLCT 80 d
EEx d IIC T5( T100°C) or T6 (T85°C)
Complies with EN 50270
See our full line of fixed gas detection products.
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