IM 91051-01EN (P2)
2. Components
Name
Description
1. Pressure/Vacuum
knob
Turn the knob to switch between
Pressure
,
Vacuum
, and
Vent
open.
2. Handle
Operate (push) the handle to generate
pressure.
3. Vernier adjustment
Used to “fine tune” the pressure to the
target value.
4. Pressure output port
1/8" NPT
Port for outputting pressure.
Connect a standard pressure meter,
calibration target (connector),
and so on to this port.
VENT
PRESSUER
VACUUM
Vent
(vent open) Pressure
Vacuum
3. Vernier adjustment
1. Pressure/Vacuum
knob
4. Pressure output
port
2. Handle
3. Operating Instructions
3.1 Handling Precautions
Be sure to check the operating environment (safety).
Before use, be sure to check that connectors are secure,
that there are no intrusion of foreign substances,
and that there are no damages.
In addition, use the same thread specifications for all connectors.
Perform preliminary pressure tests on tubing and other parts of
the system.
If you are applying pressure using a hand pump,
be sure to monitor the pressure with a standard pressure meter
(monitor).
3.2 Connecting Connectors
CAUTION
• Use connectors appropriate for the thread specifications of
the device under test (DUT) and tubing.
Otherwise, leakage and damage to threads may result.
• Apply appropriate seal tape to the connecting surface of
the connector.
1/8” NPT
Standard pressure
meter
Connector
The device under test
(DUT)
<Connection example>
■ Using Two Wrenches
To prevent leakage, you must tighten the connector or
quick adapter firmly.
Using a wrench only on the connector side may break
the pressure pump.
Use two wrenches to prevent force from being applied to
the pressure pump.
(The same applies when you connect a connector to
the standard pressure meter.)
3.3 Generating Pressure
WARNING
• Remove tubing and wiring from the the device under test (DUT)
before carrying out the procedure.
• Only connect to this pressure pump.
Do not connect to another high pressure source.
• Be sure to observe all safety precautions to avoid injury and
damage to the DUT.
CAUTION
Use connectors and hoses appropriate for the source pressure
value.
[ Procedure ]
(1) Connect the standard pressure meter and the DUT.
(2) Use
the Pressure/Vacuum knob
to select pressure or
vacuum.
(3) Push
the handle
to apply pressure near the target pressure
(operate the handle while checking the standard pressure
meter).
(5) Turn
the vernier adjustment
to “fine tune” the pressure to
the target value.
Increase: Turn clockwise
Decrease: Turn counterclockwise
Note
The vernier adjustment can be turned about 20 times
counterclockwise (decreasing pressure) from the maximum
position. If the adjuster feels heavy to turn, stop turning it.
Turning it by force can cause damage.
3.4 Releasing Pressure
WARNING
To prevent accidents, safely return the pressure to zero
(release the pressure) before removing the connector and hose.
After generating pressure, carefully turn
the pressure/vacuum
knob
to the vent (vent open) position to release the pressure.
Note
After use, store the pressure pump in the hand pump case or
in a safe place.
4. Troubleshooting
If you cannot increase the pressure with the hand pump
(if the pressure decreases), check the following.
• Check the pressure/vacuum knob position.
• Check the thread specifications of the connection port.
Check that the connection is secure (use seal tape or
other measures).
CAUTION
If you cannot determine the cause, continuing with the procedure
is dangerous. Stop immediately.
If the product does not work properly, contact your nearest
YOKOGAWA dealer.