Ashcroft GC55 - Differential Pressure Transducer with Digital Display - Manual (Page 19)

19
13. other Functions
Basic Key operations
In all setting modes, values are set with the ▲▼ keys. Use the ▲ key to
increase and the ▼ key to decrease the value. A repeat state occurs in
three phases of speed when the ▲▼ keys are pressed for more than 0.5
seconds to increase or decrease numerical value. ▲▼ keys are also used
for setting switch, unit and filter in the function setting mode.
Adjusting the zero point of P1, P2
In measurement mode, select display to adjust zero using key.
Press + ▲▼ keys for more than 3 seconds (until “---” display
blinks) after releasing pressure from the pressure port. Auto-matic zero
adjustment takes place approximately 1 second later for pressure display
to be zero. When the zero adjustment is successful,
is displayed.
Error displays for 1 second when applied presure was outside of
range of –5 to 5% F.S., zero adjustment will not be allowed.
Adjusting the zero point of DP
Only when display scaling is selected in display select on function
setting mode, zero adjustment can be done. Press + ▼ keys for
more than 3 seconds (until “---” display blinks) after releasing pressure
from the pressure ports. Automatic zero adjustment takes place approxi-
mately 1 second later.
et[
MODE
e-0
adj
SEL
MODE
Less than
1 sec.