Chapter 4. Using Special Features
Model PM880 Portable Hygrometer User’s Manual 51
4.5 Setting a Probe Calibration Reminder (cont.)
4.5.1 Entering Probe Information
1. Use the arrow keys to scroll to S/N and press [ENTER].
2. Use the numeric keys to enter the serial number from the Calibration
Data Sheet and press
[ENTER]. The serial number is also scribed on the
hex nut of the moisture probe.
3. Use the arrow keys to scroll to the suffix box and press [ENTER] to
open the drop-down list.
4. Use the arrow keys to scroll to the desired suffix and press [ENTER].
5. Use the arrow keys to scroll to Calibrated On and press [ENTER].
6. Use the numeric and arrow keys to enter the most recent calibration
date. When you have entered the desired month, day and year, press
[ENTER].
Note: Refer to the calibration data sheet for the most recent calibration
date.
7. Use the arrow keys to move to Cal Reminder and press [ENTER]. This
prompt asks you to select a time period for the next probe calibration.
The PM880 will display a calibration reminder for the probe based on
the last calibration date. GE recommends recalibrating a probe a
minimum of once a year.
8. Use the arrow keys to move to the desired selection and press [ENTER].
9. Press [F3] (OK) and then [MENU].
The PM880 returns to taking measurements.
The calibration reminder is part of the site file; therefore, if you are not
planning to make any more changes to the site file, you should save the new
changes. Refer to Saving a New Site File on page 96.
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