Cartridges Equipped with Combustible Gas (LEL) Sensors
For safety reasons, combustible gas (LEL) sensors must be operated and serviced by qualified personnel only. Read and understand the instruction manual completely before operating or servicing LEL sensors.
High off-scale readings may indicate an explosive concentration.
Calibrations must only be performed in areas free of flammable gases.
Blackline’s LEL sensors are factory calibrated with the following settings:
| Gas | Calibration concentration (%vol) | Calibration concentration (%LEL) | Balance (±5% tolerance) |
|---|---|---|---|
| Methane (CH4) | 2.5% | 50%±2% |
O2 18 vol% CO 100ppm H2S 25ppm N2 Balance |
Like any gas sensor, be sure to understand potential explosive hazards and choose the appropriate sensor technology based on these hazards.
Blackline supports two different combustible gas (LEL) sensor technologies:
Molecular Property Spectrometer (LEL-MPS)
Non-Dispersive Infra-Red (LEL-IR)
Blackline makes the following recommendations for the use of each sensor.
