ZIROX SGM7.2, Руководство пользователя

Страница: 29 / 39

Oxygen Monitor SGM7.2 8 Operation
8.3.3 Calibration state
Table 8: Messages calibration state
OK (1.5) last calibration OK (calibration value)
WAIT ! 5 calibration is running
BREAK cancelled by key pressing
TIME OUT stability has not been reached in 60s
OUT OF RANGE range overstepping
FAILED instrumental error
START start calibration
8.4 Trouble Shooting
Table 9: Disturbances - Causes and Removal
Disturbance Cause Removal
SGM7.2 turned off switch on SGM7.2
No Power supply
Checking power supply and
cord line
Display does not shine
Equipment fuse triggered Changing equipment fuse
Gas supply blocked, too long for
the chosen cross-cut or leaky Checking gas supply, removing
blockages, producing tightness
Warning:
FLOW <<< (Flow to low)
Pump defect
Pump replacing by
manufacturer
Gas flow too low Increasing flow
Relatively high measuring
value, although a low value
for the oxygen
concentration is expected
micro leakages in the gas supply checking fittings
Measurement is dependent
on the throughput (the
smaller the flow, the
greater the value or
reversed)
Leakages in the measuring gas
supply Checking gas supply and
fittings
measuring value is
fundamentally lower than
expected
There are (at high temperatures
with oxygen) reacting compo-
nents in the measuring gas (e.g.
hydrocarbons)
Using of charcoal filter, if
already used – check charcoal
filters for saturation
Measuring cell has not reached
operating temperature yet
5 minutes waiting, after that
watch the temperature value at
the display – contact service if
necessary
Fuse for sensor heater triggered
switch off and check after
switching on, whether fault
appears again – in this case
consulting service Warning: “WARM UP”
Heater or controller defect Consulting service
Warning: ERROR
THERMOCOP.
Thermocouple defect Consulting service
Warning: SELF TEST
FAILED (system error)
failure program- or data-memory Consulting service
HB_SGM72_Rehm_eng.DOC
29