Ashcroft GC35 - Pressure Sensor - Manual (Page 17)

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