Ashcroft GC52 - Rangeable wet/wet Differential Pressure Transmitter - Manual (Page 8)

8
• The indicated value which is blinking is integrated during the "blink"
display at the time of momentary flow rate display span OVER.
Flow Measurement/Square Root Extraction Mode
No. Setting Item LCD Display Setting Description Setting Range Default
ባ
Display mode
n ~ roT
Selection for flow measure-
ment/ square root extraction
mode
non: Differential pressure
display mode Lin: Linear
display mode Rot: Square
root display mode
non
ተ
Maximum
differential
selection 1
p. 400
Maximum differential pres-
sure relating to the flow rate
25 to 100% F.S. of sensor
range
100.0%
of sensor
range
ቱ
Flow rate deci-
mal pt. position
D 0
Displays of value after deci-
mal point, # of digits
0,1,2,3 digit
0
ቲ Max. momen-
tary flow
D 1000
Max. momentary of flow
using arbitrary units
0 to 1999
1000
ታ Low cut
l 0.0
Forces display and output to
zero
0.0 to 30.0% F.S. of max.
display span
0.0
ቴ
Output zero
point 2
A 0.0
Momentary flow rate of ana-
log output zero point (4mA):
100.0% F.S.
–10 to 100% F.S. of max.
display span 0.0
ት
Output span
point 2
A100.0
Momentary flow rate of ana-
log output zero point
(20mA): 100.0% F.S.
–10 to 100% F.S. of max.
display span 100.0
ቶ
Time factor
U SE[
Measurement of max. mo-
mentary flow rate over time
selected
Seconds, minutes or hours
Sec
k
21
Flow rate vol-
ume factor
U 1
Flow rate x time selected 1,10,100,1000
1
k
22
Display
switch set-
ting
s bT
Selection of display switching
method of momentary flow
rate and integrated volume
ti = automatic
bt = manual bt
k
23
Switch time
interval
T 5
Selection for ti: automatic
Displays switching time in-
terval in seconds
1 to 10 seconds (10 stage)
5
k
24
Loop check 3
c 0.0
Output check using arbitrary
value – displays pressure
correlating to the 4 to 20mA
signal
Display: momentary flow
rate display span
Analog output: 4 to 20mA
0.0 to 100.0%
0
(4.0mA)
(1) In the setting of a differential pressure the decimal point position is fixed for each differential pressure range.
The max. differential pressure can be set from the value which is 25%F.S of the differential pressure range above the
minimum differential pressure.The values under 25%F.S. cannot be increased or decreased by T, S key.
(2) For setting zero point and span point of the analog output, input the percent value over the maximum display span (be-
tween OFFSET and FULL SCALE). Its decimal point position can be set up to one digit after the decimal point (xx.x).
(3) Regardless of generated differential pressure or low-cut, the loop check can be changed arbitrarily linking the
momentary flow rate display with the analog output using the T, S keys. This example of LCD display shows
the display set to span point.