Yokogawa 91056 Operating Manual

User’s

WARNING

CAUTION

Manual

91056 Pneumatic Pressure Pump

Thank you for purchasing the 91056 Pneumatic pressure pump.

This user’s manual primarily explains the handling precautions and

basic operations of the 91056.

To ensure correct use, please read this manual thoroughly before

beginning operation.

Store this manual in an easily accessible place for quick reference.

IM 91056-01EN

3rd Edition: Oct. 2017 (YMI)

Contact information of Yokogawa ofces worldwide is

provided on the following sheet.

PIM 113-01Z2: Inquiries List of worldwide contacts

Sales in Each Country or Region

Authorized Representative in the EEA

Yokogawa Europe B.V. is the authorized representative of Yokogawa Test & Measurement Corporation for this product in

the EEA. (EEA: European Economic Area)

To contact Yokogawa Europe B.V., see the separate list of

worldwide contacts, PIM 113-01Z2.

Safety Precautions

This product is designed to be used by a person with specialized

knowledge. The general safety precautions described herein must be observed

during all phases of operation. If the instrument is used in a manner not specied in this manual, the protection provided by

the instrument may be impaired.

This manual is an essential part of the product; keep it a safe place

for future reference.

YOKOGAWA assumes no liability for the customer’s failure to

comply with these requirements.

The following symbols are used on this instrument and in this manual.

Handle with Care.

Refer to the user’s manual or service manual.

This symbol appears on dangerous locations on

the instrument which require special instructions for

proper handling or use.

Calls attention to actions or conditions that could cause serious or fatal injury to the user, and precautions that can be taken to

prevent such occurrences.

Calls attention to actions or conditions that could cause light injury to the user, or cause damage to the instrument or user’s data,

and precautions that can be taken to prevent such occurrences.

Note

Calls attention to information that is important for the proper

operation of the instrument.

Check the Operating Environment

• This product is a pump for the pressure calibrator.

Do not use for any other purpose.

• Do not use the product if there is a problem with its physical

appearance.

• This product is manufactured in accordance with Sound

Engineering Practice (SEP).

• Be sure to check the measurement environment and conditions.

If you are using the product in an environment in which

supervision by a certied person is required by law or other ordinance, be sure to perform measurements in accordance

with appropriate safety management standards.

• Use tubing (connector, hose, etc.) that can withstand the

pressure to be generated.

• Make sure that air does not leak from the tubing

(connector, hose, etc.) connections.

If a connection comes loose or if air leaks under high pressure,

it can endanger the user or the surrounding instruments.

• Do not apply pressure exceeding the maximum allowable

pressure of the device under test (DUT).

Do not generate pressure exceeding the maximum working

pressure (M.W.P).

• Removing tubing when there is remaining pressure is extremely

dangerous.

Safely release the pressure before removing tubing

(connector, hose, etc.) from the pressure pump.

• This instrument is not explosion-proof. Do not use the instrument in the presence of ammable gases

or vapors. Doing so is extremely dangerous.

Do use the product in:

• In direct sunlight or near heat sources

• In an environment that is subject to large levels of mechanical vibration

• Near noise sources, such as high-voltage equipment or

power source

• Near strong magnetic eld sources

• In an environment with excessive amounts of soot, grease,

dust, or corrosive gas

• In an environment where ignition or explosion may occur,

such as where ammable gas is present

1. Specications

Model 91056: Pneumatic Pressure Pump

Pressurized media Air Pressure generation range -83 kPa to 4000 kPa

M. W. P (Maximum working pressure)

Operating temperature range: 0 to 50°C Port: 1/8” FNPT, 1/4” FNPT Weight: Approx. 450 g Dimensions: Approx. 212×132×60 mm

Name Model Note

Pneumatic pressure pump kit 91055 Hand pump (91056),

Pneumatic pressure pump 91056 -83 kPa to 4000 kPa

Connector set

(pneumatic pressure pump)

Case (for 91056 and 91061)

*1: The maximum working pressure (M.W.P) of

the quick adapter is 2 MPa.

*2: The maximum working pressure of

the exible hose is 3.5 MPa.

Note

If you require high airtightness or high withstand pressure,

use a connector with a ferrule or sleeve, not the supplied quick adapter or the exible hose. Use a hose that can withstand the pressure that you will generate.

5100 kPa

Connector set (91057),

Case (93053)

91057 Connector set for the 91056

(Quick adapter *1, Sealing cap for 1/8” NPT, Flexible hose *2, Sealing tape,

and Hex wrench)

93053 Case for the 91056 and 91057

(same as the case for the hydraulic pressure pumps

91061 and 91062)

Notice Regarding This Manual

• The contents of this manual are subject to change without prior notice as a result of continuing improvements to the instrument's

performance and functionality.

The gures given in this manual may differ from the actual

indication.

• Every effect has been made in the preparation of this manual to ensure the accuracy of its contents. However, should you have any questions or nd any errors, please contact your nearest

YOKOGAWA dealer.

• Copying or reproducing all or any part of the contents of this manual without the permission of YOKOGAWA is

strictly prohibited.

Be Sure to Read the Pressure Meter User’s Manual

If you are going to use this product in combination with a pressure meter (standard pressure meter/monitor), be sure to read the pressure meter user’s manual,

and use the instruments correctly.

Note

After use, store the pressure pump in the hand pump case or

in a safe place.

2. Components

3. Pressure

6. Pressure output port

CAUTION

Standard pressure

The device under test

WARNING

CAUTION

WARNING

CAUTION

Name Description

1. Pressure/Vacuum shuttle valve

2. Vernier adjustment Used to “fine tune” the pressure to

3. Pressure release valve Close the valve to generate pressure.

4. Handle Operate (grasp) the handle to generate

5. Stroke adjustment Adjusts the handle stroke.

6. Pressure output port 1/4” NPT

7. Pressure output port 1/8” NPT

(1/4” NPT)

7. Pressure output port (1/8” NPT)

1. Pressure/Vacuum shuttle valve

Press the shuttle valve (or return it) to switch between Pressure and

Vacuum.

the target value.

(Turn clockwise.) Open the valve to release pressure. (Turn counterclockwise.)

pressure.

Port for outputting pressure.

Connect the calibration target

(connector) and the like to this port.

Port for outputting pressure.

Connect the standard pressure meter

(hose) and the like.

If you are not going to use this port,

close it with the sealing cap for 1/8” NPT.

2. Vernier adjustment

release valve

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 specications 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

• Use connectors appropriate for the thread specications 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.

(DUT)

1/4” NPT

meter

1/8 “NPT

3.3 Generating Pressure

• Remove tubing and wiring from 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.

• To prevent damage to this pressure pump, use your hand to

tighten the pressure release valve.

• Use connectors and hoses appropriate for the source pressure

value.

[ Procedure ]

(1) Connect the standard pressure meter and the DUT.

(2) Turn the pressure release valve clockwise to close it. (3) Using a small screwdriver or other tool,

push the pressure/vacuum shuttle valve to specify

pressure or vacuum.

(4) Squeeze the handle (operate the handle) to apply pressure

near the target pressure. (Operate the handle while monitoring the standard pressure

meter.)

(5) Turn the vernier adjustment to “ne tune” the pressure to

the target value.

When pressure is being generated:

Turn clockwise to increase; turn counterclockwise to

decrease

When vacuum is being generated:

Turn counterclockwise to decrease (toward vacuum).

(6) To decrease (release) pressure,

turn the pressure release valve counterclockwise.

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 specications of the connection port. Check that the connection is secure (use seal tape or

other measures).

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.

4. Handle

5. Stroke adjustment

■UsingTwoWrenches

To prevent leakage, you must tighten the connector or

quick adapter rmly.

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.)

3.4 Releasing Pressure

To prevent accidents, safely return the pressure to zero

(release the pressure) before removing the connector and hose.

After generating pressure, turn the pressure release valve

counterclockwise to release the pressure.

Note

• After use, store the pressure pump in the hand pump case or

in a safeplace.

• To prevent misplacing the sealing cap for 1/8” NPT, we recommend that you attach the cap when storing

the pressure pump.

IM 91056-01EN (P2)