ROHRBACK COSASCO SYSTEMS CHECKMATE Reference Manual page 12

8 CHECKMATE™
To check that the unit is operational, press the ON button. The screen should appear as
shown below:
If the batteries are low or in need of replacement, a warning screen will appear as
follows:
If batteries are good, the instrument will sequence directly to the Standby display as
below:
The battery is tested both at initial switch on, and during probe measurement.