Ashcroft GC35 Handbuch für Installation und Wartung - Seite 17
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Error
Display
Contents
Out of pressure display range (Upper limit)
FFF
A pressure above 110% FS of pressure
range is applied, or when indicated value
exceeds 1999.
Out of pressure display range (Lower limit)
FFF
A pressure less than –10% FS of pressure
range is applied, or when indicated value
falls below –1999.
E-0
During zero point adjustment, applied
pressure is outside the range of ±10% FS
14. TROUBLESHOOTING
Error
No display
No output
Display/output do
not indicate when
pressure is applied
(remains at zero)
Unit display/output
conflicts with the
value of applied
pressure
Possible cause
Energy-saving mode
Wiring
Supply voltage
Setting of comparator
Comparator enabled
Pressure leak
Too low pressure applied with the suitable pressure range.
Zero point shift
Pressure indication mode Select a pressure indication
Analog scaling mode
Set value of the
comparator output
Overloaded comparator
Foreign material
(blockage)
Actions
Adjust the applied pressure
within the rated pressure.
Open the unit to the atmos-
phere and perform zero
point adjustment again.
Actions
Press any key to turn indication on or
disable power-saving mode in the setup.
(Function setting mode)
Carry out wire connection correctly according to
the connection point.
Set a comparator output type (NPN, PNP)
output type to match the setup of apparatus.
(Function setting mode)
(Comparator operation selection)
Enable a comparator in the setup.
(Comparator setting mode)
Check pressure connection and piping.
Verify applied pressure by using a pressure gauge
Perform zero point adjustment
(zero point adjustment mode)
(Function setting mode)
Check analog output scaling setup
(Function setting mode)
Check the operational mode of the comparator, a
preset value, and the preset value of delay time.
(Function setting mode)
(Comparator setting mode)
(Comparator setting mode )
Use unit with a load current set to 80mAdc or lower.
Clean / remove obstruction in piping
17
(Power-save setting)
(Comparator Use/No use)
Display setting)
Analog Output Scaling)
Select comparator mode)
Comparator setting point)
Comparator delay)