User Manual
Druck DPI612
Page 102 of 105
[EN] English – 109M4017 Revision -
DPI 612 pFlexPro
8.2
Fault Symptom
Possible Cause
Check
Unit will not
generate pressure
with integral
pump.
Mode selector incorrectly
set.
Sensor not fitted to sensor
port.
Output port not connected.
Release Valve not 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.
Unit will not
generate vacuum
with integral
pump.
Mode selector incorrectly
set.
Sensor not fitted to sensor
port.
Output port not connected.
Release Valve not closed.
Refill Valve 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.
Open Refill valve ( fully counter-
clockwise).
Excessive leak
rate, (pressure or
vacuum).
Incorrectly connected
system (DPI612 to DUT).
DUT has leak.
Worn pressure seal on
outlet port (‘O’ ring &
backup ring).
Release Valve not 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.
Unit will not reach
desired pressure.
PRV (if fitted) operating at
lower pressure than
required.
Check PRV range (if fitted) & adjust
PRV if range is suitable. Fit correct
range PRV.
Re-fit PRV blanking plug supplied
with unit.