Martel Electronics 235 - Manual (Page 25)

LCD Vu (Adjust LCD viewing angle)
The LCD viewing angle or contrast may be adjusted electronically for
optimum viewing under various conditions. There are 8 levels to the
contrast adjustment. Press the INC or DEC key to select the adjustment
that is optimum for your conditions.
The second line of the viewing angle screen displays additional useful
information. The left side displays the serial number of the unit and
should agree with the serial number label on the case. The right side
displays the revision level of the internal software (microcode).
BatSav (Battery save)
The battery save feature will turn the calibrator off if there is no
keyboard activity for 10 minutes. This prevents running the batteries
down if the unit is accidentally turned on, or if the unit is left
unattended. Battery save should be enabled unless you have a specific
application where the calibrator needs to run attended for greater than
10 minutes.
Select either Disable or Enable using the INC/DEC keys and press the
ENT key.
IncDec (Program functions of the INC/DEC keys)
When the calibrator is in the output mode and a valid output function is
active, pressing INC or DEC key will cause the output to change by a
predetermined amount. This amount can be either a percentage of the
Operation
230/235 20
Viewing Angle
sn 1355 uc 0300
Battery Save
Disable Enable
Note: All calibrators are shipped from the factory with battery save
enabled.