Additel 917 Instruction Manual

Warningsand cautions

Low pressure gauges can very easily be over pressured if not
careful.
Please take caution when applying pressures.
Do not exceed the safet y limit of 1500 psi (100 bar) for 917 or
2000 psi (140 bar) for 918.
Do not switch between pressure and vacuum mode under
pressure. Open the vent valve and isolation valve before
switching between positive to vacuum pressures.
Over tightening connectors may cause damage. Light hand
tightening 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 by
venting the pump when at high pressure.
For the least risk in contamination of the reference gauge, the
DUT should be installed to the pressure port which is closest to
the vent valve.

Specification

917/918

Pneumatic Pressure Test Pump User Manual's

[Version number:1407V02]

Configuration & Air routine

31

2

5

67

4

8

Under Vacuu

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

（clockwise to close/ counterclockwise to open）

5 - P/V selector lock
6 - Pressure/vacuum (P/V) selector

（

Positive pressure: pull it out; vacuum: push it in

DO NOT switch under pressure or vacuum to

!

avoid damage）

7 - Isolation valve (Bypass valve)

(Isolated the calibration volume from the hand pump,
piston, and check valve)

8 - Fine adjust handle

（clockwise to increase pressure）

Pressure range:

Temperature:
Humidity:

Adjustment resolution

Maximum pressure:

Pressure media:

Height: 5.5'' ( 140 mm );

Size:

917: 95% vacuum to 1000 psi ( 70 bar )

8

91 : 95% vacuum to 1500 psi ( 100 bar )

0~50

）℃

（

< 85%RH

10 Pa ( 0.1 mbar )

:

917: 1500 100
918

psi ( bar )

: 2000 psi ( 140 bar )

Air

Base: 12.4'' ( 315 mm ) x 7.8'' ( 198 mm )

Weight:

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

5.7 lb ( 2.6 kg )

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

Air routine

7

3

6

1

4

8

Troubleshooting

Problem

Hand pump will not generate pressure

It is difficult to increase pressure

Hard to use the fine adjust

It is difficult to turn the quick connector

Cause

The isolation valve is not open

A. Vent valve is not closed.

B. The O-ring seal is loose or damaged.

C. P/V selector is in the wrong position

A. The isolation valve is not closed

B. The gauges are not tightened.

C. The O-ring seal is damaged.

D. The thread surface is not smooth.

E. The connector type mismatched to the gauge pressure port.

F. Dust or contaminants are blocking the pressure flow

A. Too much force was previously applied.

B. The threads have no lubrication..

.

.

Solution

Open the isolation valve

Close the vent valve.

Replace O-ring seal

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

Close the isolation valve

Tighten the reference gauge or the gauge under test

Replace the O-ring seal.

Use Teflon tape on the thread and turn it in tight

Use the correct adapter

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

contaminants out.

Secure the quick connect valves with less force.

Apply lubrication to the threads..

.

.

.

.

Basic Operation

open

DIGITALPRESSURE CALIBRATOR

Units

DIGITALPRESSURE CALIBRATOR

Units

A

0255075100

A

0255075100

Pressure GaugePressure Gauge

open

pressure position is shown.
push in for vacuum.

Must vent before switching between

!

vacuum and positive pressure.

Vent

Zeroing should
be operated
under this
condition only

B

.

Pressure GaugePressure Gauge

k

dial gauge

④ push down to

pre pressurize

-

to desired value
or until hard to
push down

open

②

SW V mA COM 24V

SW V mA COM 24VSW V mA COM 24V

pressure switch pressure transmitter

DIGITALPRESSURE CALIBRATOR

Units

0255075100

①

A

set it to the
mid position
of its travel

Pre-pressure

Pressure Gauge

close,do not

③

use too much

C

force

close,do not

①

use too
much
force

Connection

flexible hose

Pressurizing process
and fine adjustment

DIGITALPRESSURE CALIBRATOR

Units

A

0255075100

Pressure Gauge

pressurize to

②

higher pressure by
turning the handle and
make fine adjustment

A

D

Decrease pressure process

DIGITALPRESSURE CALIBRATOR

Units

A

0255075100

Pressure G

Pressure Gauge

auge

open it slowly

①

to get the
desired value,
and close!

fine adjustment

②

Decrease vacuum process

DIGITALPRESSURE CALIBRATOR

Units

A

0255075100

close

①

③

0 8.00 8.0

-0.1

fine adjustmentt

0.06

Vacuum

Vacuum Gauge

②

0.04

Gauge

0.02

0

open it slowly
to get the
desired value,
and close!

E

H

⑤

operate it
to get the
desired
value

open

①

Vacuum process

DIGITALPRESSURE CALIBRATOR

Units

A

0255075100

③

push in,select the vacuum position

m②

ake sure to complete the step

!

before operating step .

F

DIGITALPRESSURE CALIBRATOR

Units

close,do not

use too
much
force

0255075100

0.06

0.04

Vacuum

Vacuum Gauge

Gauge

0 8.00 8.0

0.02

-0.1
0

close

④

open

②

①

Vacuum and

fine adjustment

A

0.06

Vacuum

Vacuum Gauge

0 8.00 8.0

-0.1

fine adjustment

②

0.04

G

auge

0.02

0

③

Remarks:

A Additel has made a concerted effort to provide complete and current

information for the proper use of this equipment. The product
specifications and other information contained in this manual are
subject to change without notice.

B:: Above pictures are just for reference.

Additel Corporation, USA

www.additel.com

G