Warnings and cautions
Low pressure gauges can very easily be over pressured if notcareful.
Please take caution when applying pressures.
Do not exceed the safety limit of 1500 psi (100 bar) for 917 or2000 psi (140 bar) for 918.
Do not switch between pressure and vacuum mode underpressure. Open the vent valve and isolation valve before
switching between positive to vacuum pressures.
Over tightening connectors may cause damage. Light handtightening is sufficient.
Store the pump in a dry non-corrosive environment.
Additel is not responsible for problems or damage resulting from
improper use or operation of the equipment.
All moisture and contaminants should be cleaned out of the liquid
isolator before creating a vacuum. This is accomplished byventing the pump when at high pressure.
For the least risk in contamination of the reference gauge, theDUT should be installed to the pressure port which is closest tothe vent valve.

Specification
Pressure range: 917: 95% vacuum to 1000 psi ( 70 bar )918: 95% vacuum to 1500 psi ( 100 bar )917/918
Pneumatic Pressure Test Pump User's Manual[Version number:1409V03]
Please download the latest version from www.additel.com

Temperature:（0~50）℃
Humidity: < 85%RH
Adjustment resolution: 10 Pa ( 0.1 mbar )Maximum pressure: 917: 1500 psi ( 100 bar )918: 2000 psi ( 140 bar )Pressure media: Air
Size: Height: 5.5'' ( 140 mm );Base: 12.4'' ( 315 mm ) x 7.8'' ( 198 mm )Weight: 5.7 lb ( 2.6 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.

Configuration & Air routine
21

1 - Hand pump
2 - Transport handle
3 - Quick connector
4 - Vent valve

3Air routine
73（clockwise to close/ counterclockwise to open）

5 - P/V selector lock6 - Pressure/vacuum (P/V) selector（Positive pressure: pull it out; vacuum: push it in4

6! DO NOT switch under pressure or vacuum toavoid damage）

65 4

78

1

7 - Isolation valve (Bypass valve)(Isolated the calibration volume from the hand pump,piston, and check valve)

88 - Fine adjust handle

Under Vacuu（clockwise to increase pressure）

Troubleshooting
Problem
Hand pump will not generate pressure

It is difficult to increase pressure

Hard to use the fine adjust

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 the P/V selector out; Vacuum: push the P/V selector in.

A. The isolation valve is not closed.

Close the isolation valve.

B. The gauges are not tightened.

Tighten the reference gauge or the gauge under test.

C. The O-ring seal is damaged.

Replace the O-ring seal.

D. The thread surface is not smooth.

Use Teflon tape on the thread and turn it in tightE. The connector type mismatched to the gauge pressure port.

Use the correct adapter.

F. Dust or contaminants are blocking the pressure flow

Pressurize the pump several times and then suddenly vent which will push any
contaminants out.

It is difficult to turn the quick connector

A. Too much force was previously applied.

Secure the quick connect valves with less force.

B. The threads have no lubrication.

Apply lubrication to the threads.

O-Rings for pressure connector

P/NSizeConnector

1611300004

4X1.5

M10X1, 1/8BSP, 1/8NPT

1611300220

6.5X3

M20X1.5, 1/2BSP, 1/2NPT

1611300024

6X2

M14X1.5, 1/4BSP, 1/4NPT, 3/8BSP

Basic Operation
Connection
DIGITAL PRESSUREACALIBRATOR

Units

A
0255075100

SW
SW

VmACOM

VmA

COM

24V

24V

Pressure Gaugekpressure switch

dial gauge

Vent

DIGITAL PRESSURE

A
255075Pre-pressure

Zeroing shouldbe operated
under thiscondition only.

CALIBRATOR

Units0B

pressure transmitter

DIGITAL PRESSURE

flexible hose

Pressurizing process
and fine adjustment

CCALIBRATORDIGITAL PRESSUREUnits

DCALIBRATOR

Units

A1000255075

A1000

Pressure Gauge

255075100

Pressure Gauge

Pressure Gauge④ push down topre-pressurize
to desired value
or until hard topush down

openopen

Decrease pressure process

DIGITAL PRESSURE

use toomuchforce

use too muchforcepressure position is shown.
push in for vacuum.
Must vent before switching betweenvacuum and positive pressure.

!

① close,do not③ close,do not② open② pressurize to① set it to thehigher pressure byturning the handle andmake fine adjustment

mid positionof its travel

EVacuum process

DIGITAL PRESSURE

CALIBRATOR

Units

F

Vacuum andfine adjustment

CALIBRATORDIGITAL PRESSUREGCALIBRATOR

Units
Units

A
0255075

A0100

255075

A

100

00.06
Pressure Gauge

0.08
- 0.1

⑤ operate it

0.04

2550751000.06

Vacuum Gauge

0.02

0.08

0- 0.10.04

Vacuum Gauge

0.02
0to get thedesiredvalue

it slowly① opento get the①open

desired value,and close!

Decrease vacuum process① close,do not
use toomuchforce③
push in,select the vacuum position! make sure to complete the step ②
before operating step ③.

② fine adjustment

DIGITAL PRESSURE④ close② open② fine adjustment

H

CALIBRATOR

Units

A025

50

75

100

0.06
0.08

0.02

- 0.1

① close0.04

Vacuum Gauge

0it slowly② opento get thedesired value,and close!

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

③ fine adjustmentt

Additel Corporation, USA
www.additel.com