Ashcroft GC52 - Rangeable wet/wet Differential Pressure Transmitter - Manual (Page 27)

27
• Overage display
-0.050
-fff fff
1.050
–15%F.S. (–3.0 inH
2
O) more/less
– 5%F.S. (–1.0 inH
2
O) more/less
115%F.S. (23.0 inH
2
O) more/less
105%F.S. (21.0 inH
2
O) more/less
12. ZERO ADJUSTMENT MODE
In the measurement mode, the pressure connection (H, L) is open to the
atmosphere and
T key is pressed for more than 3 seconds in order to
shift to zero adjustment mode (refer to section 11) for zero point adjust-
ment of the differential pressure sensor.
• If the zero point adjustment is correctly performed, the message "AdJ"
will be displayed for 2 seconds, and the display will return to the meas-
urement mode.
• If zero point correction is performed when the applied pressure is over
±10%F.S., the error message “E-0” will be displayed for 2 seconds, and
the display will return to the measurement mode without completing the
zero point adjustment.
CAUTION: Only perform the zero point correction when both the
H and L ports are open to the atmosphere. If done incorrectly the
accuracy of the device may be effected.
• Span over display
Adj e-0
– Normal Message – – Error Message –