Issue 1
1-2 Instrument parts, accessories and options
K0457 - [EN] English
1.2.1
Pressure relief valve (PRV)
To give your attached devices overpressure protection (device
under test, PM 620 module), we recommend you use one of
our range of optional pneumatic PRVs; see Section 1.5
(Accessories).
To attach or adjust a PRV, see Section 2.4.
1.2.2
Test port
To attach the device under test, the test port uses “Quick fit”
pressure adaptors; see Section 1.5 (Accessories). These are
easy to remove, change and install; see Section 2.3
(Attach/Remove the device under test).
1.2.3
Pneumatic pressure release valve
This is a needle point valve that lets you release the pressure
or vacuum, or seal the system. You can also use it to control a
change in pressure conditions; for example, to go to or through
another test pressure.
1.2.4
Volume adjuster
This control increases or decreases the pressure/vacuum.
Before you seal the system (Section 1.2.3), turn this control to
the necessary position:
•
for equal adjustment, turn it to the middle of its range
•
for maximum adjustment, turn it fully clockwise or
counterclockwise
When you have set the necessary pressure or vacuum with the
pump (Section 1.2.6), use the volume adjuster to make the last
adjustments.
1
2
4
: Open
: Close
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