Warnings and cautions
Operate the pump in the rated pressure range and do not exceed thesafety pressure of 15,000 psi (1,000 bar)
Close the valves and tighten the ports when transporting the pump.
Always open the reservoir release valve during operation.
Do not over tighten the connectors or handles to avoid any damage.
Change contaminated media immediately.
Do not let the media level get below the mid line of the reservoir when
the pump is place horizontal.
Keep the outer threads clean.
Additel is not liable for any safety problems or damages caused bymisuse or incorrect operation.

Specification
Pressure range: 12.5 psi ( 0.85 bar ) vacuum to
10,000 psi ( 700 bar ) positive pressure
Remark：If local atmosphere pressure is 1 bar, the vacuum can reach to 0.85 bar;If local atmosphere pressure is P, the vacuum can reach to ( P 85% ) bar.

ADT927
Hydraulic Pressure Test Pump User's Manual[Version number:1409V12]
Please download the latest version from www.additel.com

Temperature: （0~50）℃
Humidity: < 95%RH
Adjustment resolution: 0.015 psi ( 0.001 bar )Safety pressure: < 15,000 psi ( 1000 bar )Pressure media: Oil or deionized water
To reach the best performance, oil is recommended.
Recommended oil: Di-ethylhexyl Sebacate, Isovoltine II.

Size: Height: 5.31'' ( 135 mm );Base: 11.42'' ( 290 mm ) x 7.80'' ( 198 mm )Weight: 7.1 lb ( 3.2 kg ) ( excluding the media )Configuration & Pressure drawing
1

1 - Quick connector
2 - Reservoir release valve

2 3 4

Pressure drawing(open it to connect with atmosphere)

583 - Upper cover of reservoir
4 - High-pressure pressurization andfine pressure adjustment handle

6(clockwise to increase pressure)

5 - Liquid reservoir(inner is pressure media)

6 - Pre-pressurization handle

8 7(clockwise to increase pressure）

7 - Screw of fitting cover
8 - Vent valve(Open to connect with atmosphere)

2
5
4

6

Troubleshooting
Cause

Problem
Difficult to increase pressure withpre-pressurization handle

A. Vent valve is not closed.
B. The O-ring seal is loose or damaged.
C. Not enough media is in the reservoir.

Hard to fine adjust

it is difficult to turn valves or quickconnectors

D. The pump is not horizontal.
A. The vent valve is not closed.
B. The gauges are not connected tight.
C. The sealing ring is aged or frayed.
D. The thread surface is not smooth.
E. The connector type is mismatched to the gauge pressure port.
A. Too much force was previously applied.
B. The pre-pressurization handle may not adjust easily under highpressure.
C. The threads have no lubrication.

Solution
Close the vent valve.
Replace the O-ringFill with more fluid. Make sure fluid level is high enough after thegas purging process.
Place the pump horizontally to prepare for pressure or vacuum.
Close the vent valve.
Tighten the gauges.
Replace sealing ring.
Use Teflon tape on the thread and turn it in tight.
Use the correct adapter.
Do not over tighten.
Adjust pressure by using fine adjustment handle. (Pressure mayneed to be decreased with the fine adjustment handle before thepre-pressure handle can be used).
Lubricate the thread.

O-Rings for pressure connector

P/N

SizeConnector

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

Preparation
Open the reservoir

Filling/emptying the reservoir

A②open the upper cover①open

The media level should be 2/3 the heightof the reservoir.

Lock the reservoir

B

Fill or empty media

C①close the upper cover②closeClean any impurities from the media and reservoir.

Basic Operation
Connection

VentA

B

DIGITAL PRESSURE CALIBRATORUnits

DIGITAL PRESSURE

CALIBRATOR

A

0255075100

Units

A0SW

VmACOM

255075Pressure Gauge

100Zeroing shouldbe operated
under thiscondition only.

24VSWVmACOM24V①open
Pressure Gauge
k②openpressure switch

dial gauge

Purge process
DIGITAL PRESSURE

CCALIBRATORDIGITAL PRESSURE

Units

pressure transmitter

flexible hose

Purge process (cont.)

DIf air is still trapped in the pump ,then repeat the purge process 2or 3 more times until all the gas
is removed from the system.

CALIBRATOR

Units

A

0255075

A

1000Vacuum displayed on the gauge

502575Pre-pressure

100

DIGITAL PRESSURE

CALIBRATOR

Units

A0502575

Pressure Gauge

100

Wait for gauge to vent to zero

③turn it to the smallest degree

bubble①open④turn it to themid position①open③Turn all the way in②open③turn it togreatest
degree②Turn all theway out①close②open

Pressurizing process
DIGITAL PRESSURE

CALIBRATOR

Units

A

0255075

Pressure Gauge

100

Vacuum preparation

F

If necessary,please generatehigh pressureusing #4 handle③generate high-pressureand fine adjust pressure

DIGITAL PRESSURE

DIGITAL PRESSURE

A

025

Vacuum process

GCALIBRATOR

Units

50750.06

CALIBRATOR

Units

0.04

A

Vacuum Gauge

1000 .08
- 0.1

①open

②Pre-pressurization①close①closeE00.022550

750.06

0.04

Vacuum Gauge

1000 .08

0- 0.10.020

If it is difficult to generate
vacuum pressure , thenrepeat the purging
process to make sure all
the gas is removed fromthe system.
③fine adjust④turn it to themid position②turn it to approachthe desire value③turn it to thesmallest
degree①close②open

Remark:
A: Additel has made a concerted effort to provide complete and current information for the proper use of the equipment. The product specifications and otherinformation contained this manual are subject to change without notice.
B: Above pictures are just for reference.
Additel Corporation.USA
www.additel.com

H