Additel 916-N Instruction Manual
Warnings and cautions
Avoid possible damage when suddenly apply pressure to low pressure
and small chamber gauges.
Do not exceed the safety pressure limit（1000 psi ）.
Compressed air may cause problem in explosive or corruptive
environment.
Do not shift between pressure and vacuum mode under pressure.
Do not over tighten connectors to avoid any damage.
Store the pump in the dry and non-corruptive environment.
Any security problems or damages caused by incorrect operation,
is beyond Additel's responsibility.
Specification
ADT916
Pneumatic Pressure Test Pump User's Manual
[Version number:1103V10]
Pressure range: 14 psi ( 0.95 bar ) vacuum to
600 psi ( 40 bar ) positive pressure
Temperature: （0~50）℃
Humidity: < 85%RH
Adjusting fineness: 10 Pa ( 0.1 mbar )
Safety pressure: < 1000 psi ( 70 bar )
Pressure media: Air
Size: Height: 5.5'' ( 140 mm );
Base: 12.4'' ( 315 mm ) x 7.8'' ( 198 mm )
Weight: 6.0 lb ( 2.7 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.
Configuration & Air routine
1 2 3
7
56
4
Troubleshooting
Problems
1 - 1/4 NPT connector
2 - Isolating valve
（isolate the calibration from pressurizing system）
3 -Pressure lever
4 - Fine adjust handles
（clockwise to increase pressure）
5 -Security bolt pin
（use it to ensure safety）
6 -Pressure/vacuum selector
（Pressure: pull it out; Vacuum: push it in）
7 -Release valve
（clockwise to close/ anticlockwise to open）
Causes
Air routine
2
6
7
3
4
Solutions
Hard to use pressure lever
Hard to pressurize
Hard to use vernier
Not easy to turn the fittings
The isolating valve is not open.
A. Release valve is not closed.
B. The sealing ring is broken or loosen.
C. P/V selector is in wrong position.
A. The isolating valve is not closed.
B. The gauges is not tightened.
C. The sealing ring is aged or frayed.
D. The thread surface is not smooth.
E. The connector type is unmatched.
F. The impurity blocks the air routine.
A. Too tightly turned last time!
B. The new pump is not smooth.
C. The threads have no lubrication.
Open the isolating valve.
Close the release valve.
Replace sealing ring.
Pressure: pull it out; Vacuum: push it in.
Close the isolating valve.
Tighten the reference gauge or the gauge under test.
Replace sealing ring.
Put in a Teflon seals and turn it tightly.
Use the right and suitable adapter.
Repeat pressurizing several times and then release it suddenly, make airflow to bring the impurity out.
Do not apply much force to close the fittings and valves.
The new pump needs time to abrade.
Lubricate the thread.
Basic Operation
DIG
ITAL PESSU
RE
CAL
IB
R
AT
O
R R
Un
i
ts
Open to atmosphere
B
Pressure GaugePressure Gauge
kk
dial gauge
SW V mA COM 24VSW V mA COM 24V
SW V mA COM 24VSW V mA COM 24V
pressure switch pressure transmitter
Pre-pressure
C
Connection
flexible hose
Fine adjust process
A
D
Zeroing should
be operated
under this
condition only.
R
O
T
A
I
CALBR
RE
SU
ES
R
TAL
GI P
DI
s
i
ntU
DIGIT
A
L
A
PR
ESSU
RE
CAL
IB
R
TO
R
Units
P
P
r
r
e
e
s
s
s
s
ur
ur
e
e
G
G
a
a
u
u
ge
ge
open
open
Pressurizing process
e
e
g
g
Gau
Gau
r
r
su e
su e
s
s
e
e
r
r
P
P
operate it to
②
get the desired
value
E
close,do not
④
use too much
force
R
O
T
A
BR
I
CAL
RE
ES
R SU
TAL
GI P
DI
s
i
ntU
ePr
e
g
g
au
au
G
G
e
e
r
r
u
u
ss
ss
e
e
Pr
③
①
push the security bolt pin in
Decrease pressure process
OR
T
AGT
I
CALBR
RE
ES
PR SU
AL
DI I
nU its
e
r r a
r r a
P
P
uge
uge
G
G
u e
u e
ss
ss
e
operate it to get
⑤
the desired value
open
set it to the
②
mid position
of its travel
F
Un
s
i
Unt
DI
s
t
i
PR
AL
GIT
I A
D
ESS RE
A PR
GI
OR
A
REC LIBRT
SU
ES
ge
ge
G
G
u auP
u auP
ss re
ss re
e
e
r
r
close,do not use
①
too much force
fine adjust
②
Vacuum process
ORT L
T
BRA
CALI
U
04
0.040.
. 6
. 6
0 0
0 0
ge
ge
u
u
a
a
Va
mG
mG
u
u
c u
c u
Va
02
02
.
.
0
0
80.0
8
0.0
00
0 1- .0 1- .
operate it to
⑤
get the desired
G
value
Uni
GITAL
I E
D
ts
Repeat Vacuum process
OR
R T
ALB A
SUR C I
ES
PR
4
4
0
0
.
.
0
0
6
00.600.
ea
e
g
g
u
u
a
m G
m G
u
u
u
u
c
c
Va
Va
02
02
.
.
0
0
8
.
0 08.0 0
00
0 1- .0 1- .
①
①
Open
②
open
H
operate it to
get the desired
value
open it slowly
①
to get the
desiredvalue,
and close!
open it slowly
②
to get the
desired value,
and close!
Decrease vacuum process
OR
T
ALBRA
C I
E
UR
SS
PR
GITAL
I E
D
ts
Uni
0.080.08
40
4
0
0
.
.
0
06
0.060.
ea
e
g
g
auV u mG
auV u mG
c u
c u
a
020.
02
0.
0
0
0.1- 0.1-
①
close
fine adjust
②
fine adjust
③
open
①
close（
but it
must be open
when select
the pressure /
vacuum
）
④
pull out
③
push in,select
the vacuum
position
②
I
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.
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