18
K249 Issue No. 4
•
To change the pressure units, if required, press
INPUT
and select the
required units using the cursor keys.
•
Close the vent valve and, using the hand-pump or external pressure
supply, apply pressure to the relief valve under test.
•
When the relief valve operates, the maximum recorded pressure indicates
the operating point of the valve.
•
Record the test results.
Note:
The
STORE
key can be used for this purpose. Use right cursor key
initially, followed by up/down keys to enter Snapshot text.
•
Open vent valve to release test pressure.
Note:
If using external pressure supply, isolate supply before opening the
vent valve.
Taking Measurements
Relief Valve Test (REL VALVE) Task
To carry out a relief valve test, press
TASK
and select
REL VALVE
. Connect the
output pressure port of the instrument to an external system as shown below.
PRESSURE INT
bar
bar
RESET
MAXIMUM
MINIMUM
MAX/MIN
F2
F1
External Pressure Source
(Indicator Only)
Pressure
Regulator
PRESSURE INT
max 30V
TASK : RELVALVE
SNAPSHOT MODE
DPI 615 IS
Summary of Contents for DPI 610 IS
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