D 400
Symptoms description
37
39
40
41
42
43
44
ASM
1
4
2
-
142
D
-
G
rap
h
D
+
GB
03978
-
E
di
ti
on
01
-
J
anua
ry
200
9
SYMPTOM
ORIGIN / DIAGNOSTIC
CONFIRMATION
REMEDY
Autocal. failure: peak adjust error
Peak fault: internal calibrated leak
parameters
Incorrect filament alignment
Peak fault: analyzer cell incorrect
assembly
38
Autocal. failure: emission loss
Problem of the calibration valve
n
Check that the calibration
parameters are correct
n
Check and adjust filament position
n
Check the analyzer cell
n
Check valve VC3
E 400
E 530
C 302
Unable to start an
autocalibration
Manual calibration selected
Leak detector is in test mode (remote
control AUTOCAL key inactive)
n
Select automatic calibration
n
The control panel AUTOCAL key
is only active to start an external
calibration
For internal autocalibration, stop
the test cycle
C 302
C 301
Unable to reach target value
Incorrect internal calibrated leak
parameters
Internal calibrated leak faulty (check
helium signal with an external
calibrated leak)
n
Check and correct internal
calibration leak parameters
n
Change/recalibrate internal
calibrated leak
C 305
E 560
Nothing happens when the
power is switched ON
No display appears on the
control panel
High helium background signal
(in stand-by mode)
High helium background signal
(in hard vacuum test mode)
Power fuse burnt
Control panel disconnected from
supervisor board
Power supply board trouble
Control panel trouble
Rotary vane pump pollution (if RVP)
Leak inside the leak detector
Analyzer cell contamination
Ambient air helium contamination
(background OK when leak
detector placed in another room
or environment, free of helium
contamination)
Tested piece degassing (background
OK in test mode when leak detector
inlet port blanked off)
n
Change fuse and check power
voltage
n
Secure proper control panel
connection.
n
Change fuse of the power supply
board
n
Change control panel board
n
Open air ballast
Change the oil
n
Helium leak: check the valves
n
Clean and recondition the cell
n
Clean the ambient air
n
Clean the part/installation being
testing. Eliminate the source of
degassing or contamination
-
-
E 750
-
E 400
-
-
45
Helium signal unstable
Analyzer cell connections
Contamination of the rotary vane
pump oil (helium “peaks” at regular
intervals) (if RVP)
n
Check that the external analyzer
cell connections are correct and the
internal analyzer cell connections
properly fastened
n
Change the oil
-
E 750
4/6
Содержание ASM 142
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Страница 315: ...G 201 Wiring diagrams ASM 142 D index 1 2 ...