Using Automatic Calibration (Autocal); Using Automatic Calibration - GE PM880 User Manual

Chapter 4. Using Special Features

4.6 Using Automatic Calibration (AutoCal)

The PM880 automatically calibrates the moisture and pressure
measurement circuitry (AutoCal) at a user-selected interval. Autocal
compensates for any drift in the electronics. GE recommends setting the
AutoCal interval to 8 hours. Set a smaller AutoCal interval more frequently
if the meter is exposed to extreme temperatures or weather conditions.
Note:
If you are using only Moisture Image Series (MIS) probes to measure
moisture, the System Menu is not available.
Use the steps below to enter an AutoCal interval:
If the menu is not active, press
1.
Use the arrow key to scroll to Program and press
2.
Use the arrow key to scroll to System and press
3.
similar to Figure 21 appears.
Figure 21: System Configuration Window
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[MENU]
Model PM880 Portable Hygrometer User's Manual
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[ENTER]
. A screen
[ENTER]