AVL DiGas 4000 User Manual

4-/5-Gas Measuring Instruments Unit AVL 4000
5-26 Service Manual
Primary error symptom Primary cause
(of error)
Secondary cause of
error
Possible tests/
establishing cause
Remedy
Pump does not
switch off
Cable faulty (465),
pcb faulty
Pneumatics board
faulty
EPROM faulty (465)
Service mode: test
function
Use edge protectors
(465)
If necessary, replace
pump or pneumatics
board
Pump does not
switch on
Control cable (465)
faulty
pcb faulty
Pneumatics board
faulty
Service mode: test
function
Use edge protectors
(465)
If necessary, replace
pump or pneumatics
board
Pump is loose Loud noise and
vibrations
Tighten screws and
secure with Loctite
Pump faulty
Pump cable worn
through (465)
See “Self-test and
stabilisation”
Use edge protectors
(465)
Insulation
Pump very noisy Screws loose Check Tighten screws and
secure with Loctite
Software error Communication Test pump in service
mode and let it run
Replace pneumatics
board (465)
Replace measuring
instruments unit
Pump faulty Internal short
circuit/loose contact
Test pump in service
mode and let it run
Replace pump
Pump cable faulty
(465)
Intermittent short
circuit
Test pump in service
mode and let it run
Insulate cable (465)
EPROM faulty
(465)
ESD or EMC Replace EPROM
(465)
Pump switches itself
on or off
Pneumatics board
faulty
Overheated driver
on pcb?
Very hot?
Replace pneumatics
board
(Replace measuring
instruments unit)

AVL DiGas 4000 Specifications

General

Brand	AVL
Model	DiGas 4000
Category	Test Equipment
Language	English