Oldham olct ir, Technical Manual

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1 - Introduction 7
The OLTC IR is available in various configurations:
Methane Version (CH
4
):
- % LEL: optimized for methane detection, standard range is 0-100% LEL (0-5% vol.). The range can be
adjusted to 0-4.4% vol. for those who consider this value as the lower explosive limit for methane.
- % Vol.: detection of methane from 0 to 100% vol.
HC Version:
- Optimized for the detection of saturated hydrocarbons (propane, butane, pentane, hexane, ethanol, etc.). The
standard range is set in factory:
C
3
H
8
– 0 to 100% LEL
C
4
H
10
– 0 to 100% LEL
C
2
H
6
O – 0 to 100% LEL
C
6
H
14
– 0 to 100% LEL
CO2 Version:
- Optimized for CO
2
detection from 0 to 3% vol.