Maintenance and Calibration > Calibration of RH and T Devices

The Logger stores raw values which are transformed into real values via calibration data stored in the Logger memory. This information is transferred to the PC when the Logger is downloaded

Calibrating the Logger consists of obtaining these numbers and then downloading them to the Logger, no physical adjustment is required

The Procedure is as Follows:

1.	From the Setup dialog select Calibrate Logger

2.	Place the device in Calibration mode, the device screen will now show raw rather then processed numbers

3.	Apply temperatures, humidities etc. as required and note the raw numbers obtained at each point. The calibration points should be beyond the expected extremes to be encountered in service.

4.	Enter these values into the calibration dialog and send them to the Logger using Program Logger

5.	Take the device out of calibration mode.

6.	Start the Logger off as normal.