Ashcroft GC52 - Rangeable wet/wet Differential Pressure Transmitter - Manual (Page 5)

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3. To adjust Output Zero Point (4mA) and Output Span Point
(20mA) the unit must be in the functional area as noted below
while adjustment is via $ # keys. The value shown is a percent-
age of the pressure range (span) as noted on the product label
(ex. If product was supplied as a 0-40 IWC range and the user de-
sired the Output Zero Point (4mA) to be “moved” from 0 IWC to 20
IWC then Output Zero Point would be 50.0 which is 50%.
C. Re-scaling in “Arbitrary” units, “Linear Display Mode.” This function
allows the user to establish a linear relationship from the standard “inH
2
O”
unit to any user defined unit.
Note: See menu schematic on last page. Unit must be in “Linear Display
Mode” option within “Setting Mode”, this is noted on the screen by
Use $ # keys to move between “Linear Display Mode” and “Pressure
Display Mode.”
a 90.0
a 10.0
n non
-
Note: For setting of zero point and span point in the analog
output, input the percent value over the pressure range.
Setting LCD Setting Setting
Item Display Description Range
Display Selection of non:pressure
mode pressure display display mode
mode : non Lin: linear
display mode
Output Analog Pressure
zero point output zero point range:–10
(4mA) : 10.0 (%Span) to 110% Span
.
Output Analog Pressure
span point output span point range:–10
(20mA) : 90.0 (%Span) to 110% Span
Values shown below are from I&M manual.
n L;n
-