MeshGuard LEL IR & CO2 IR User’s Guide
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7.4. Sensor Replacement
1. Use the 3-pin end of the sensor and battery tool to unscrew and open the filter holder at the
bottom of the monitor.
2. Use the hexagonal end of the tool to open the remove the sensor cover, turning
counterclockwise.
3. Pull the old sensor out.
4. Gently push a new sensor into the compartment.
Important! Ensure that the RAE Systems part number matches the sensor that was
removed.
WARNING! Use only the same sensor model as the one installed when the monitor was
purchased.
5. Replace the sensor compartment cover using by turning it clockwise, using the hexagonal
end of the tool.
6. Replace the filter holder by turning it clockwise, using the 3-pin end of the tool.
Note: Always recalibrate the instrument after service to ensure functionality.
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