[EN] English - K0457
Instrument parts, accessories and options 1-5
Issue 1
1.3.2
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 3.3
(Attach/Remove the device under test).
1.3.3
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.
Note:
To release all the pressure in the system, you must open
the refill valve (Section 1.3.4) one turn and then open the
pressure release valve one turn.
1.3.4
Pneumatic refill valve
When the refill valve is open, you have full control to increase
or decrease the pressure/vacuum with the volume adjuster
(Section 1.3.5).
If you increase pressure and the volume adjuster gets to the
limit of travel, close the refill valve. This seals off all the
pressure in the test port and the pressure module connection.
You can then use the pump and volume adjuster to refill the
pressure mechanism (Section 1.3.5).
Note:
To release all the pressure in the system, you must open
the refill valve one turn and then open the pressure release
valve (Section 1.3.3) one turn.
1.3.5
Volume adjuster wheel
The refill valve (Section 1.3.4) sets the operation of the Volume
adjuster wheel: Full control or refill
2
4
Open
Close
5
Open (1 turn): Full control
Close: Refill
9
