MeshGuard LEL IR & CO2 IR User’s Guide
5
IMPORTANT! BUMP TEST THE MONITOR BEFORE EACH DAY’S USE
Prior to each day’s use, every gas detection monitor should be bump tested to confirm the response of
all sensors and activation of all alarms by exposing the monitor to a concentration of target gas that
exceeds the low alarm set point. A bump test is also recommended if the monitor has been subjected to
physical impact, liquid immersion, an Over Limit alarm event, or custody changes, or anytime the
monitor’s performance is in doubt.
To ensure greatest accuracy and safety, only bump test and calibrate in a fresh air environment.
The monitor should be calibrated every time it does not pass a bump test, but no less frequently than
every six months, depending on use and exposure to gas and contamination, and its operational mode.
• Calibration intervals and bump test procedures may vary due to national legislation.
• Honeywell recommends using calibration gas cylinders containing the gas that is appropriate to the
sensor you are using, and in the correct concentration.
Sensor Specifications, Cross-Sensitivities, And Calibration Information
For information on sensor specifications, cross-sensitivities, and calibration information, refer to RAE
Systems Technical Note TN-114: Sensor Specifications And Cross-Sensitivities (available for free
download from www.raesystems.com). All specifications presented in this Technical Note reflect the
performance of standalone sensors. Actual sensor characteristics may differ when the sensor is
installed in different instruments. As sensor performance may change over time, specifications provided
are for brand-new sensors.
Make Sure Firmware Is Up To Date
For best operation, make sure your monitor is running the latest firmware. Check
www.raesystems.com for updates.
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