Additel 901-N Instruction Manual

Warnings and cautions

Do not exceed the safety pressure limit（60 psi）.

Be careful of any problem by some pressure media against the

exploisive or corrupsive conditon.

Do not tighten connectors over to avoid any damage.

Store the pump in the dry and non-corruptive environment.

Any safety problems or damages caused by incorrect operation,

is beyond Additel's responsibility.

Specification

Low Pressure Test Pump User's Manual

Configuration & Air routine

ADT901

[Version number:1103V10]

Pressure range: 6 psi ( 0.4 bar ) vacuum to

6 psi ( 0.4 bar ) pressure

Temperature: （0 ~ 50）℃

Humidity: < 95%RH

Adjusting fineness: 0.01Pa ( 0.0001 mbar )

Safety pressure: < 60 psi

Pressure media: Air

Size: Height: 5.71'' ( 145 mm )

Base: 9.65'' ( 245 mm ) x 6.50'' ( 165 mm )

Weight: 3.5 lb ( 1.6 kg )

1

2

3 4

Troubleshooting

Problems

Hard to coarsely adjust

1-1/4 NPT quick connector

2-Shut off valve

(clockwise to close/ anticlockwise to open)

5

3-Fine adjust handle

(clockwise to increase pressure)

4-1/4 NPT quick connector

5-Coarse adjustment handle

(clockwise to increase pressure)

Causes

A. The isolating valve is not closed.

B. The sealing ring is broken or loosen.

Air routine

2

3

5

Solutions

Close the isolating valve.

Replace sealing ring.

Hard to fine adjust

Hard to turn the fittings

A. The gauges are not tightened.

B. The sealing ring is aged or frayed.

C. The thread surface is not smooth.

D. The connector type is unmatched.

A. Too tightly turned last time!

B. The assembly is not fitted.

C. The threads have no lubrication.

Tighten the reference gauge or the gauge under test.

Replace the sealing ring.

Put in a Teflon seals and turn it tightly.

Use the right and suitable adapter.

Do not apply much force to close the fittings and valves.

New assembly needs time to abrode.

Lubricate the thread.

Basic Operation

Connection

D

I

GTA

I

L

P

R

E

S

S

U

R

E

CALIB

RAT

OR

Units

k

SW V mA COM 24VSW V mA COM 24V

flexible hose

Pressure GaugePressure Gauge

kk

dial gauge

SW V mA COM 24VSW V mA COM 24V

pressure switch

pressure transmitter

A

TAL

GI

I

D

nits

U

①open

Open to atmosphere

Pressure preparation

Zeroing should be

O

T R

A

BR

A I

C L

E

UR

SS

E

R

P

00

res

res

③set it to the mid position of its travel

operated under
this condition only.

eu

e

GaP

GaP

re

re

u

s ug

s ug

kk

00

②turn it to the
maximum
degree

B

Increase pressure process

OR

T

R

B A

I

AL

E

SUR

PRE

L

A S C

T

I

IG

D

s

it

n

U

③fine adjust

①Close

00

e

e

g

g

a

a

G

G

ure

ure

s

s

s u

s u

e

e

r

r

P

P

kk

00

00

C

②operate it to
approach the
desired
value

Decrease pressure process

T

BRA

L OR

A I

C

E

U

S R

S

A PRE

T

I L

IG

D

ts

ni

U

②fine adjust

00

e

e

ug

ug

Ga

Ga

re

re

su

su

s

s

re

re

P

P

kk

00

00

D

①operate it to
approach the
desired
value

P

L

TA

GI

DI

iU

nts

①open

Prepare for vacuum

R

TO

BRA

I

CAL

E

UR

SS

E

R

1010

15 15

u ecu

u ecu

G

G

m a gVa u

m a g

Va u

k

k

2020

25

25

-

-

③set it to the mid position of its travel

55

00

②turn it to the
maximum
degree

E

RES

P

GT

I I AL

D

t

U i sn

①close

R

O

LIB AT

A

R

E C

U

S R

③fine adjust

Vacuum process

1010

1515

G u eV cu

G u eV cu

m a g

m a g

a u

a u

kk

2020

-25-25

55

00

②operate it to
approach the
desired
value

F

Decrease vacuum process

O

AT

LIBR

A

R

E C

U

S R

RES

P

AL

IGIT

D

ts

n

U i

②fine adjust

1010

515

1

g

g

au e

au e

G

G

m

m

cu

cu

Va u

Va u

kk

20

20

-25-25

55

00

①operate it to
approach the
desired
value

G

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 other information contained this manual are subject to change without notice.

B: Above pictures are just for reference.