Ashcroft GC35 - Pressure Sensor - Manual (Page 4)

4
4. Comparator-Switch / Loop Check Mode: Access by pressing MODE for less
than 3 seconds.
A.
Comparator-Switch Setting: To activate / deactivate comparator-switch,
scroll to US1 (4-20mA version only) or US2 and select USE / noU. Enter com-
parator-switch set point by selecting A-1 or A-2 and use #/$ keys for pres-
sure setting. Now enter ‘deadband’ value (pressure difference between set
and reset values) by selecting b-1 or b-2 and use #/$ keys for setting. Note:
unit automatically configures the reset point. Increasing setpoint is entered as
a positive ‘deadband’ value, while decreasing setpoint is entered as a negative
‘deadband’ value.
B. Loop Check: Allows the user to check comparator-switch operation without
requiring pressure input. Use $ or # keys to view comparator-switch function
in a simulated test of the application.
Comparator-Switch Setting / Loop Check Menu
P5I
Function Setting Mode
Filter Setting
Decimal Point Position
Display Unit Setting
Select Comparator Mode
LED Ring Feature Setting
Comparator Operation
Selection
Measurement Mode
Press 3 sec.
or longer Press 3 sec.
or longer
MODE
MODE
MODE
MODE
MODE
MODE
MODE
MODE
MODE
MODE
MODE
MODE
After 1 second
kY5 kY5 !;n
Select with
X W keys
Select with
X W keys
Select with
X W
keys
Message displayed Current setting Hysteresis Window comparator
After 1 second
OP( npn npn pnp
Message displayed Current unit
setpoint
NPN output PNP output
Select with
X W
keys EoF Eon
Power-save OFF Power-save ON
e(O
Message Display Current Setting
e(O eOf
After 1 second
f;l f-1
Message displayed Current setting
After 1 second
lRg
Message Display Current Setting
L lRI
After 1 second
Select with
X W
keys ET[ P5I
psi, bar or mPa Display Scaling
UN;
Message Display Current Setting
u
After 1 second
Select with
X W
keys
Power-save setting
(Display Scaling)
Set Offset Value
(Display Scaling Set)
Full Scale Value
Pressure when the
analog is at zero point
Pressure when the
analog is at span point
f-0
Filter off
f-1
Time constant 25ms
f-2
Time constant 250ms
f-3
Time constant 2.5s
f-4
Time constant 5s
f-5
Time constant 10s
Select with X W keys
Set Any Desired Position Within the
–100 to 150% range with the
X W
keys
Set Any Desired Position Within the
–100 to 150% range with the X W keys
X W
Key to Select Between
(–)1999~(+)9999
X W
Key to Select Between
(–)1999~(+)9999
0 0.0
0.000 0.00
Lr0
No LED interlock
Lr1
Comparator 1 is
interlocked with LED
Lr3
Comparator 1 & 2 are
interlocked with LED
Lr2
Comparator 2 is
interlocked with LED
d-p
Message Display Current Setting
d 0.00
After 1 second
d-l
Message Display Current Setting
d 0.00
After 1 second
d-K
Message Display
Only in Output Selection
Display Scaling
Current Setting
d 0.00
After 1 second
A-L
Message Display Current Setting
a 0.0
After 1 second
a
Message Display Current Setting
a-k 100.0
After 1 second
D I S P L AY S E T T I N G
A N A LO G O U P U T S CA L I N G
(n ~P