Endress+Hauser TOCII CA72TOC - Page 118

Maintenance TOCII CA72TOC
118 Endress+Hauser
3 1. Release the coupling (item 3).
2. Check the O2 filter (item 2) for
possible signs of wear. Replace the
filter if necessary.
3. Screw the coupling into the gas
connection block.
4. Press the [E] key.
4 1. Reconnect the gas supply.
2. Open the gas supply valve.
3. Press the [E] key.
5 The furnace heats up. Measuring
operation starts automatically as soon as
90% of the set temperature is reached and
the CO2 value has dropped below the
threshold value.
During this time, sample conditioning
takes place (strip chamber) and pH
regulation is activated
Measuring operation commences if these
two conditions are met.
Step Display Description
REPLACE O2 FILTER
[E] TO CONFIRM
MAINTENANCE COMPLETED ?
REPLACE O2 FILTER
[E] TO CONFIRM
RESTORE OXYGEN SUPPLY!
XXX
XXX
REPLACE O2 FILTER
TEMPERATURE = °C
IR = ppm