Metrohm 763 PVC Thermomat Manual - Manual (Page 140)

5.2 Faults and malfunctions
763 PVC Thermomat
133
Operating status
Display Status/Error Rectification
ON Instrument switched on.
ON Instrument switched off.
Self-test following switch-on
After the instrument has been switched on an internal hardware self-test
is carried out. Each of the 7 test steps only lasts about a second and is
shown on instrument display 11 11 by a particular combination pattern of
the 4 display lamps. If there is a fault then the corresponding LEDs will
flash.
Display Status/Error Rectification
DEVICE LED test. If all LEDs do not light
up during this test then an LED
is faulty. Inform Metrohm service.
DEVICE RAM test error. Switch instrument off and on
again. If the error reoccurs
please contact Metrohm
service.
DEVICE PROM check sum test error. Switch instrument off and on
again. If the error reoccurs
please contact Metrohm
service.
DEVICE BUSY test error. Switch instrument off and on
again. If the error reoccurs
please contact Metrohm
service.
DEVICE ADC test error. Switch instrument off and on
again. If the error reoccurs
please contact Metrohm
service.
DEVICE EEPROM test error. Switch instrument off and on
again. If the error reoccurs
please contact Metrohm
service.
DEVICE Incorrect mains voltage
(Variation > 10%). Check power supply.
Gas flow display during operation
Display Status/Error Rectification
FLOW Gas flow switched off.
FLOW Gas flow control active, set gas
flow not yet reached.
FLOW Gas flow control active, set gas
flow reached.