Nagano Keiki GC31 Instruction Manual page 16

10. Function setting mode
Setup
 steps
Pressing the
MODE
Edit of the setting value in function setting mode recalculates all of the setting values including
the comparator. Please note that when the recalculated setting values are out of the display
range, they will be adjusted to the upper or lower limit value that can be processed internally.
key for 3 seconds displays "---" and changes to function setting mode.
The setting mode is used to select comparator operation,
pressure unit, indication scaling, scaling of analog output,
and filter time constant.
TY-GC31-004A 15/24
Rev.B