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User Manual
8
TROUBLESHOOTING
8.1
DPI 612 pFlex
Fault Symptom
Unit will not
generate
pressure
with integral
pump.
Unit will not
generate
vacuum
with integral
pump.
Excessive leak
rate, (pressure or
vacuum).
Unit will not
reach desired
pressure.
Page 101 of 105
Possible Cause
Mode selector incorrectly set.
Sensor not fitted to sensor
port.
Output port not connected.
Release Valve not closed.
Mode selector incorrectly set.
Sensor not fitted to sensor
port.
Output port not connected.
Release Valve not closed.
Incorrectly connected
system (DPI612 to DUT).
DUT has leak.
Worn pressure seal on outlet
port ('O' ring & backup ring).
Release Valve not closed.
PRV (if fitted) operating at
lower pressure than
required.
Check
Mode selector is in "+" position.
Sensor (or blank IO620-BLANK) fitted to
sensor port.
Output port connected to DUT or fitted
with suitable blanking plug.
Ensure Release valve is firmly closed.
Mode selector is in "-" position.
Sensor (or blank IO620-BLANK) fitted to
sensor port.
Output port connected to DUT or fitted
with suitable blanking plug.
Ensure Release valve is firmly closed.
Check connecting accessories are
fitted in accordance with instructions
& correct sealing method is in use.
Isolate DUT from DPI612 & check for
leaks in DPI612 & DUT independently.
Inspect seal on pressure port for signs
of wear & replace as necessary.
Ensure Release valve is firmly closed.
Check PRV range (if fitted) & adjust PRV
if range is suitable. Fit correct range
PRV.Re-fit PRV blanking plug supplied
with unit.
[EN] English – 109M4017 Revision -
Druck DPI612
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