Alcatel ASM 180 TD User manual

1/1
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Edition 04 - July 97
A very wide range of helium leak
detectors
You have just purchased
an ALCATEL leak detector.
This product is part of
a very wide range of
products resulting from
30 years of experience.
The applications of helium
leak testing are extremely
varied ranging from
high-tech installation
maintenance to high-speed
testing of industrial products.
Each product of the ALCATEL
detector range is designed
to meet the specific needs
of each application:
- unit portability;
- high sensitivity;
- pumping capacity;
- pumping type;
- automation and integration
in an industrial process.
Integrable or turnkey solutions for
automated leak testing

High Vacuum Technology
France
Alcatel Vacuum Technology - France
98, avenue de Brogny - BP 2069
74009 ANNECY Cedex
Tel : [phone]
Fax : [phone]
Germany
Alcatel HOCHVAKUUMTECHNIK GmbH
Am Kreuzeck 10
D - 97877 WERTHEIM
Tel : [phone]
Fax : [phone]
Italy
Alcatel Vacuum Systems S.p.A
Via Trento, 30
20059 VIMERCATE (MI)
Tel : [phone]
Fax : [phone]
Japan
Alcatel ITS JAPAN
High Vacuum Technology Division
Ebisu MT Building 5 Floor
15-7, Higashi 3-Chome
Shibuya-ku, TOKYO 150-0011
Tel : [phone]
Fax : [phone]
Korea
Alcatel Vacuum Technology Korea
5th Floor, Sunghyun B/D
10-5, Karak-Dong, Songpa-ku
Seoul, SOUTH KOREA
Tel : [phone]
Fax : [phone]
United Kingdom
Alcatel Vacuum Technology (U.K.) Ltd.
10 Lancaster Court - Coronation Road
HIGH-WYCOMBE, HP 12 3TD
Tel : [phone]
Fax : [phone]
USA
Alcatel Vacuum Products
67 Sharp Street
HINGHAM, MA. 02043
Tel : [phone] - 4200
Fax : [phone] - 4230
Alcatel Vacuum Technology - France - 98, avenue de Brogny - B.P. 2069 - 74009 ANNECY Cedex - France
Tel : (33) (0) 4 50 65 77 77, Fax : (33) (0) 4 50 65 77 89, Telex : 385 153 F

1/3
MANUAL REFERENCE : 104435
EDITION : 04 - September 97
Edition 04 - September 97
User’s Manual
ASM 180 TD/TD+ - ASM 181 TD+
Contents
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Introduction
Installation
■The ASM 180 series. . . . . . . . . . . . . . . . . . .
■ASM 180 TD Detector operating principle . . . .
■ASM 180 TD+ - ASM 181 TD+
Detector operating principle . . . . . . . . . . . . . .
■Analyzer cell operating principle. . . . . . . . . . .
■Testing methods . . . . . . . . . . . . . . . . . . . . . .
■Operator interface . . . . . . . . . . . . . . . . . . . .
■Options . . . . . . . . . . . . . . . . . . . . . . . . . . .
■Accessories . . . . . . . . . . . . . . . . . . . . . . . . .
■Technical characteristics . . . . . . . . . . . . . . . . .
■Dimensions . . . . . . . . . . . . . . . . . . . . . . . . .
■Precautions and unpacking. . . . . . . . . . . . . . .
■ Controlling the detector with the I/O interface . . .
■ Controlling the detector with
a micro-computer
(RS232) . . . . . . . . . . . . . . . .
■Connecting an external printer . . . . . . . . . . . .
■Connecting a neutral gas purge (ASM 180TD only)
■Connecting the leak detector to the installation
via the hardware interface . . . . . . . . . . . . . . .
■Before starting up the detector . . . . . . . . . . . .
■ A 10
■ A 20
■ A 21
■ A 30
■ A 40
■ A 50
■ A 60
■ A 70
■ A 80
■ A 90
■ B 10
■ B 20
■ B 30
■ B 40
■ B 50
■ B 60
■ B 70

2/3
MANUAL REFERENCE : 104435
EDITION : 04 - September 97
Operation
Maintenance
Troubleshooting
■ C 10
■ C 20
■ C 30
■ C 40
■ C 50
■ C 60
■ C 70
■ D 10
■ D 20
■ D 30
■ D 40
■ D 50
■ D 60
■ D 70
■ D 80
■ D 90
■ D 100
■ D 110
■ D 120
■Starting up the detector . . . . . . . . . . . . . . . . .
■Detector operation . . . . . . . . . . . . . . . . . . . .
■Detector autocalibration . . . . . . . . . . . . . . . . .
■Switching off the detector . . . . . . . . . . . . . . .
■Alphanumeric Control and Display Panel (ACDP)
operation. . . . . . . . . . . . . . . . . . . . . . . . . . .
■Configuring the unit according to the gas to be
detected . . . . . . . . . . . . . . . . . . . . . . . . . . .
■Use of the “I“ gas line option
ASM 180 TD/TD+ only . . . . . . . . . . . . . . . .
■Table of preventive maintenance intervals . . . . .
■General troubleshooting guide . . . . . . . . . . . .
■Problem with the roughing pump. . . . . . . . . . .
■No display . . . . . . . . . . . . . . . . . . . . . . . . .
■Problem with the secondary pump. . . . . . . . . .
■Spectro fault . . . . . . . . . . . . . . . . . . . . . . . .
■Inlet pressure problem . . . . . . . . . . . . . . . . . .
■Cycle start faults. . . . . . . . . . . . . . . . . . . . . .
■Faults at end of autocalibration. . . . . . . . . . . .
■Faults in sniffer mode . . . . . . . . . . . . . . . . . .
■Helium measurement problem . . . . . . . . . . . . .
■I/O interface problem. . . . . . . . . . . . . . . . . .
Edition 04 - September 97
User’s Manual
ASM 180 TD/TD+ - ASM 181 TD+
Contents
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual

3/3
Edition 04 - September 97
User’s Manual
ASM 180 TD/TD+ - ASM 181 TD+
Contents
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
MANUAL REFERENCE : 104435
EDITION : 04 - September 97
Maintenance
Sheets
Components
Appendix
■ E 10
■ E 20
■ E 30
■ E 40
■ E 50
■ E 60
■ E 70
■ E 80
■ F 10
■ F 20
■ F 30
■ F 40
■ F 50
■ F 60
■ F 70
■ F 80
■ F 90
■ F 100
■ F 110
■ F 120
■ G 10
■ G 20
■Analyzer cell maintenance . . . . . . . . . . . . . . .
■Greasing the hybrid turbomolecular pump . . . .
■Greasing the molecular drag pump. . . . . . . . .
■Replacement / Recalibration of the detector
internal calibrated leak . . . . . . . . . . . . . . . . .
■Autocalibration of the detector with an external
calibrated leak . . . . . . . . . . . . . . . . . . . . . . .
■MD4E membrane pump maintenance . . . . . . .
■CP20 Partial maintenance . . . . . . . . . . . . . . .
■I/O interface board fuse replacement . . . . . . .
■Preventive maintenance components delivered
with the detector. . . . . . . . . . . . . . . . . . . . . .
■Monitoring and display . . . . . . . . . . . . . . . . .
■Power and electrical supply . . . . . . . . . . . . . .
■Automatism and electronic circuits . . . . . . . . . .
■Measurement . . . . . . . . . . . . . . . . . . . . . . . .
■Pumping . . . . . . . . . . . . . . . . . . . . . . . . . . .
■Valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
■Pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
■Connections and seals . . . . . . . . . . . . . . . . .
■Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
■Options and accessories . . . . . . . . . . . . . . . .
■Components summary . . . . . . . . . . . . . . . . . .
■View of the operator interface . . . . . . . . . . . .
■Recording curve . . . . . . . . . . . . . . . . . . . . . .

Edition 04 - September 97
User’s Manual
ASM 180 TD/TD+ - ASM 181 TD+
Chapter A
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual 1/1
Introduction
■The ASM 180 series. . . . . . . . . . . . . . . . . . . . ■ A 10
■ASM 180 TD Detector operating principle . . . . . ■ A 20
■ASM 180 TD+ - ASM 181 TD+
Detector operating principle . . . . . . . . . . . . . . . ■
A 21
■Analyzer cell operating principle . . . . . . . . . . . . ■ A 30
■Testing methods . . . . . . . . . . . . . . . . . . . . . . . ■ A 40
■Operator interface. . . . . . . . . . . . . . . . . . . . . . ■ A 50
■Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ■ A 60
■Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . ■ A 70
■Technical characteristics . . . . . . . . . . . . . . . . . . ■ A 80
■Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . ■ A 90

The ASM 180 series
1/2
Edition 04 - September 97
A 10
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
The main characteristics of
this series of products are :
- very high sensitivity
(2x10-11 mbar.l/s) ;
- a range of pumping
capacities to meet different
requirements ;
- sturdy design adapted to
severe industrial
environments ;
- user-friendly.
The ASM 180 series
includes different models :
- compact detectors (180) ;
- console detectors with
work surface (181) ;
- conventional detectors
equipped with oil sealed
vacuum pumps ;
- oil-free ("D") dry detectors.

The ASM 180 series
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
2/2
Edition 04 - September 97
A 10
The versions according the detector types:
PUMPING COMPACT VERSION CONSOLE VERSION
Standard:
1 Rotary vane pump PPM 2021 ASM 180 T ASM 181 T
1 Hybrid pump PTM 5154
Enhanced conventionnal roughing: ASM 181 T
2 Rotary vane pumps PPM 2021 with 40 m3/h
1 Hybrid pump PTM 5154 roughing option
2 Rotary vane pumps PPM 2021
1 Turbomolecular pump ATP 100 ASM 181 T2
1 Hybrid pump PTM 5154
Dry:
1 Primary membrane pump Type MD4E
1 Molecular drag pump MDP 5011 ASM 180 TD
1 Hybrid pump PTM 5154
Dry +:
1 Dry pump Type CP20 ASM 180 TD+ ASM 181 TD+
1 Molecular drag pump MDP 5011
1 Hybrid pump PTM 5154
Enhanced dry roughing:
2 Dry pump Type CP20 ASM 181 TD+
1 Molecular drag pump MDP 5011 with 50 m3/h
1 Hybrid pump PTM 5154 roughing option
1 Dry pump Type CP20 ASM 181 T2 D+
1 Molecular drag pump MDP 5011
1 Turbomolecular pump ATP 100
1 Hybrid pump PTM 5154

1/4
ASM 180 TD
Detector operating principle
A 20
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Vacuum circuit
Pumping capacities
Edition 03 - May 97
1. Detector inlet port
2. Inlet vent valve
3. Vent filter connector
4. Roughing valve
5. Inlet pressure gauge (PI3C)
7. By-pass valve
8. Exhaust pressure gauge (PI1)
9. Exhaust valve
10. Roughing pump vent valve
11. Roughing membrane pump
(MD4E)
12. Roughing molecular drag pump
(MDP)
13. Detection valve
14. Calibrated leak module
15. Connector for long distance
sniffer
16. Sniffer valve
17. Hybrid turbomolecular pump
(PTM 5154)
18. Analyzer cell
19. Connector for inert gas purge
4 m3/h roughing (membrane pump MD4E)
+ 10 l/s ( molecular drag pump MDP).
Helium pumping speed at inlet port : 4.4 l/s.
Test capacities Short test cycle.
Quick response time.
Autocalibration with integrated calibrated leak.
16
15
13
2
4
13
9
10
17
11
18
19
14 a b
c
7
5
8
12
12

ASM 180 TD
Detector operating principle
A 20
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
2/4
Edition 03 - May 97
Operation in
vacuum test mode:
3 stages
1a
Primary roughing
Note: Only operational parts are represented.
Note: Valve 7 closes at about 6 mbar.
2Gross leak test mode
(GL) 3Fine leak test mode (FL)
1b
Molecular roughing
1
4
11
7
5
12
12
1
4
11
5
12
12
1
4
9
17
18
11
12
5
1
13
9
17
18
11
12

3/4
ASM 180 TD
Detector operating principle
Edition 03 - May 97
A 20
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Operation in
sniffing mode (LDS)
16
15
9
17
18
11
12
Sniffer probe

ASM 180 TD
Detector operating principle
A 20
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
4/4
Edition 03 - May 97
Operation
in internal
calibration mode 1
14
c
11
12
Roughing of calibrated
leak 2
9
18 14 a
17
11
12
Calibration
3
14 b
Venting of calibrated
leak
The leak is returned to
atmospheric pressure

1/4
ASM 180 TD+ - ASM 181 TD+
Detector operating principle
A 21
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Vacuum circuit
Pumping capacities
Edition 04 - September 97
1. Detector inlet port
2. Inlet vent valve
3. Vent filter connector
4. Roughing valve
5. Inlet pressure gauge (PI3C)
7. By-pass valve
8. Exhaust pressure gauge (PI1)
9. Exhaust valve
12. Roughing molecular drag pump
(MDP)
13. Detection valve
14. Calibrated leak module
15. Connector for long distance
sniffer
16. Sniffer valve
17. Hybrid turbomolecular pump
(PTM 5154)
18. Analyzer cell
20. Dry primary roughing pump
(CP20)
25 m3/h (15 cfm) roughing (dry primary pump CP20)
+ 10 l/s ( molecular drag pump MDP).
Helium pumping speed at inlet port: 4.4 l/s.
Test capacities Short test cycle.
Quick response time.
Autocalibration with integrated calibrated leak.
16
15
13
2
4
13
9
17
20
18 14
7
5
8
12
12
ab
c

2/4
Gross leak test mode (FL)
Inlet Pressure ≤6 mbar
Gross leak test mode (GL)
1 mbar < Inlet Pressure < 6 mbar
ASM 180 TD+ - ASM 181 TD+
Detector operating principle
A 21
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Edition 04 - September 97
Operation in
vacuum test mode:
3 stages
1
Primary roughing
Note: Only operational parts are represented.
2a 2b
1
4
20
7
5
12
12
1
4
9
17
18
20
12
5
1
4
9
7
17
18
20
12
5

3/4
ASM 180 TD+ - ASM 181 TD+
Detector operating principle
Edition 04 - September 97
A 21
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Operation in
sniffing mode (LDS)
Sniffer probe
Operation in
vacuum test mode:
3 stages
(continued)
Fine leak test mode (FL)
3
16
15
9
17
18
20
12
1
13
9
17
18
20
12

4/4
ASM 180 TD+ - ASM 181 TD+
Detector operating principle
A 21
Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Edition 04 - September 97
Operation
in internal
calibration mode 1Roughing of calibrated
leak 2Calibration
3Venting of calibrated
leak
The leak is returned to
atmospheric pressure
14
c
20
12
9
18 14 a
17
20
12
14 b

Alcatel Vacuum Technology France - ASM 180 TD/TD+ - ASM 181 TD+ User’s Manual
Analyzer cell operating principle
1/1
Edition 03 - May 97
A 30
Analyzer cell operating principle
The mass spectrometry analyzer cell is used for helium
partial pressure measurements.
The molecules of the gas being analyzed are bombarded
by an electron beam from a heated tungsten filament (1) in
an ionization chamber (3).
A large proportion of the molecules are transformed into
ions. These ionized particles are accelerated by an electrical
field: the acceleration voltage. A magnetic field deflects the
ion beam by a radius propotional to the mass of the ions.
The acceleration voltage directs the Helium ions to the
target at the entrance of an amplifier, an electron multiplier
based system, developed and patented by ALCATEL.
The stream of Helium ions is proportional to the partial
pressure of helium in the installation and its measurement is
used to find the value of the flow rate of the detected leak.
It is essential for the total pressure in the analyzer cell to be
less than 10-4 mbar so that the paths of the electrons and
ions are not disturbed by residual molecules.
In order to separate the helium ions from the "noise" due to
"dispersed ions", a "braking electrode" (6), placed in front
of the target, eliminates secondary, low-energy ions.
The top of the cell contains an auxiliary electrode which
collects ions that have a higher mass than that of helium.
This electrode, the triode electrode (4), is used to measure
the total pressure inside the analyzer.
He leak signal
Electron
multiplier
T
a
r
g
e
t
He
He
2.5V
3 A
He
He
Amplifier
80 V
+ 200 V
adjustable
" "
Electronic
current
0.2 - 2.0 mA
adjustable
3
2
1
4
"Heavy" ions
Electron beam
"Light" ions
Helium ions
56
Acceleration
voltage
N
magnetic
field
Ie
+
(Sensitivity)
(Helium
peak)
1Filament
2Electron collector
3Ionization chamber
4Triode electrode
5Diaphragm
6Braking electrode
Cell principle
Magnetic deflection
spectrometry
Leak flow rate
Vacuum operation
Separation of He ions
from "noise"
Total pressure