Replacing probes when a CO2 probe is connected - GMP251 - RFL100

1. Disconnect the power supply from the service port of the data logger.
2. Remove the data logger from the mounting bracket.
3. Open the battery cover of the data logger.
4. Move the power switch to the Off position.
5. To replace the CO₂ probe:
   1. Loosen the locking ring of the M12 connector on the probe splitter, and pull the old probe away from the connector.
   2. Connect the new CO₂ probe and tighten the locking ring.
6. If a second probe is connected to the M8 connector on the probe splitter and you want to replace it, do so at this point. In CO₂ mode, the data logger allows both probes to be replaced at the same time.
7. Move the power switch to the On position.
8. Look at the display and wait for the data logger to start up. Data logger shows the word NEW on the channels that were affected by the probe changes for a few seconds. Wait for 30 seconds for the CO₂ probe to warm up, and verify that the display shows measurement readings instead of dashes or error codes.
9. Close the battery cover of the data logger. Push the latch down until you hear a click. If the cover does not close easily, push the probe (or extension cable) in and try again.
10. Insert the data logger back in the mounting bracket.
11. Reconnect the power supply to the service port of the data logger.