Additel ADT920 Manuel de l'utilisateur

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Pneumatic High Pressure Test Pump User Manual

Configuration & Size

Troubleshooting

Problems

Hard to use pressure lever

Can't pressurize

Hard to use fine adjust

Not easy to turn fittings

ADT920

[Version number:1305V01]

1/4" NPT plug

2 - Pressure lever

3 4

3 - Pressure/vacuum selector switch

（Out position to generate pressure / In position to generate

vacuum）Do NOT switch while unit is under any pressure

4 - Pressure/Vacuum switch protector

5 - Fine adjust handle

（Turn Clockwise to increase pressure）

6 - Maintenance cleaning hole

7 - Isolation valve

（

isolates the calibration from the pump and one way valve）

8 - Release valve

（

clockwise to close/Counter clockwise to release pressure）

9 - Vent hole

10 - Sealing Ring

Causes

The isolation valve is not open

A. Release valve is not closed.

B. The sealing ring is broken or loose

C. P/V switch is in wrong position

D. Internal tubing is dirty.

A. Isolation valve is not closed

B. Gauge is not tight.

C. The

sealing ring

is aged or frayed.

D. The thread type is not correct

E. Air route is blocked/dirty

A. Turned too tight last time.

B. New pump.

C. The threads have no lubrication

D. The thread type is not correct.

Warnings and cautions

Be careful when attaching low pressure/small chamber gauges to pump. It is easy

to overpressure these types of gauges.

Do NOT exceed the safety pressure limit ( 3500 psi / 235 Bar ).

Compressed air can be dangerous in an explosive or dirty environment.

Do NOT switch the pressure/vacuum selector switch to vacuum while pump is

under pressure. Make sure you have released pressure from BOTH the "Release

Valve" as well as the "Isolation Valve" before switching to vacuum.

Do NOT over tighten connectors or you may cause damage.

Pump should be stored in a dry/clean environment.

Safety issues or damage caused by incorrect operation is not the responsibility

of the manufacturer.

Do NOT hold pressure above 1000 psi for more than 4 hours.

Specification

Pressure range:

Temperature:

Humidity:

< 85%RH

Fine adjust:

Overpressure Safety Limit:

Pressure media:

Weight:

14.4 lbs ( 6.5 kg )

Remark：If local atmosphere pressure is 1 bar, the vacuum can reach to -0.95 bar;

If local atmosphere pressure is P, the vacuum can reach to - 0.95P bar.

Air routine

（located under each 1/4" NPT plug (1)）

Open the isolation valve

Close the release valve.

Replace sealing ring

Pressure Pull out PV switch

;

Disassemble and clean (Request diagram).

Close isolation valve

Tighten the reference gauge and / or the gauge under test

Replace sealing ring.

Use the appropriate thread type or adaptor.

Pressurize to high pressure and release pressure quickly via the release valve

Do Not over tighten.Finger tight is good.

Pump will abrade with a few uses.

Lubricate the thread

Use appropriate thread type or adaptor.

14 ( 0.95 bar ) vacuum to 3000 psi ( 200 bar )

( Based on an atmospheric pressure of 1 bar )

0 to 50

℃ /

32 to 122 F

0.001psi 0.1mbar 10 Pa )

(

，

3500

psi ( 235 bar )

Air

17.12 ' '

1.26'

Solutions

Vacuum Push in PV switch

19.92''

5.50''

10.63''