Warnings and cautions
Low pressure gauges can very easily be over pressured if not careful.
Please take caution when applying pressures.
Do NOT exceed the safety pressure limit ( 3500 psi / 235 Bar ).
This pump is not designed to be used in explosive or corrosive environments.
Do not switch between pressure and vacuum mode under pressure. Make sure you
have vented the pressure and opened the isolation valve before switching to vacuum.
Over tightening connectors may cause damage.
Pump should be stored in a dry/clean environment.
Additel is not liable for any safety problems or damages caused by misuse orincorrect operation.
Do NOT hold pressure above 1000 psi for more than 4 hours.
All moisture and contaminants should be cleaned out of the liquid isolator before
creating a vacuum. This is accomplished by venting the pump when at high pressure.
For the least risk in contamination of the reference gauge, the DUT should beinstalled to the pressure port which is closest to the vent valve.

Specification
Pressure range: 95% vacuum to 3000 psi ( 200 bar )( Based on an atmospheric pressure of 1 bar )Temperature: 0 to 50 ℃ / 32 to 122 F
Humidity: < 85%RH
Adjustment resolution: 0.001psi ( 0.1mbar，10 Pa )Overpressure Safety Limit: 3500 psi ( 235 bar )Pressure media: Air
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.

ADT920Air routine

Pneumatic High Pressure Test Pump User's Manual[Version number:1410V03]
Please download the latest version from www.additel.com

73825

Configuration & Size123 4

1 - Quick connector
2 - Hand pump
3 - Pressure/vacuum (P/V) selector(Positive pressure: pull it out; Vacuum: push it in)
Do NOT switch while unit is under any pressure

4 - Pressure/Vacuum lock
5 - Fine adjust handle(Turn Clockwise to increase pressure)

59 8

6

5.50''(isolates the calibration volume from the hand pump andcheck valve)17.12''
21.26''

8 - Vent valve

7

19.92''

54

6 - Maintenance cleaning port
7 - Isolation valve(clockwise to close/counterclockwise to release pressure)10.63''

9 - Vent port

Troubleshooting
Problem
Hand pump will not generate pressure

It is difficult to increase pressure

Hard to use fine adjust

Not easy to turn fittings

Solution

Cause
The isolation valve is not open.

Open the isolation valve.

A. Vent valve is not closed.

Close the vent valve.

B. The O-ring seal is loose or damaged

Replace O-ring seal.

C. P/V selector is in the wrong position.

Pressure : Pull P/V selector out; Vacuum : Push the P/V select or in.

D. Internal tubing is dirty.

Disassemble and clean (Request diagram).

A. The isolation valve is not closed.

Close the isolation valve.

B. The gauges are not tightened.

Tighten the reference gauge and / or the gauge under test.

C. The O-ring seal is aged or frayed.

Replace O-ring seal.

D. The connector type is mismatched to the gauge pressure port.

Use the correct adaptor.

E. Air route is blocked/dirty.

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

A. Too much force was previously applied.

Do not over tighten. Hand tight is sufficient.

B. The threads have no lubrication.

Lubricate the thread.

C. The connector type is mismatched to the gauge pressure port.

Use the correct adaptor.

O-Rings for pressure connector

P/NSizeConnector

1611300004
1611300220
1611300024

4X1.5
6.5X3
6X2

M10X1, 1/8BSP, 1/8NPT
M20X1.5, 1/2BSP, 1/2NPT
M14X1.5, 1/4BSP, 1/4NPT, 3/8BSP

Basic Operation

AConnection

DIGITAL PRESSURE CALIBRATOR

Units

A
025

50

75100

SW
SWVmACOM

VmA

COM

24V

24V

Pressure Gaugekpressure switch

dial gauge

BVentpressure transmitter

CIncrease pressure process

flexible hose

DDecrease pressure process

DIGITAL PRESSURE CALIBRATORDIGITAL PRESSURE CALIBRATORDIGITAL PRESSURE CALIBRATOR

Units
Units

A0255075

Units

100

A0255075

A100

0255075100

Pressure Gauge
Pressure Gauge

Pressure Gauge

Increase pressure

2 to the desired value

3 open1 select the pressure mode

(for precision
3 closemeasure)

2 open4 turn it in the mid-position

04 Fine adjust

2 Fine adjust

1 close1Open it slowly to get thedesired value, and close!

Zeroing should be operated under this condition only.

EPrepare for vacuum

F

Vacuum process

Decrease vacuum process

G

DIGITAL PRESSURE CALIBRATORDIGITAL PRESSURE CALIBRATORUnits

DIGITAL PRESSURE CALIBRATOR
Units

A
0255075100

Units

A00.06255075A

10000.04

Vacuum Gauge

0.08
- 0.1

4 open

MPa

0.06

0.02

2550

75

1000.04
0.06

Vacuum Gauge

vacuum-pumping

0

1 to the desired value

3 operate it to get the desired value

5 close(for precision
2 closemeasure)

0.08

MPa- 0.1

0.02

MPa- 0.1

3 Fine adjust

2 Fine adjust
1Open it slowly to get thedesired value, and close!

1 open2 Push in, select thevacuum mode!

0.04

Vacuum Gauge

0.080Open to atmosphere before operation

Remark: A: Additel has made a concerted effort to provide complete and current information for the proper use of the equipment. The productspecifications and other information contained this manual are subject to change without notice.
B: Above pictures are just for reference.

Additel Corporation
22865 Savi Ranch Parkway, Ste F, Yorba Linda, CA 92887
www.additel.com

0.020