Endress+Hauser Liquiline System CA80AL, Operating Instructions Manual

Page: 142 / 176

Maintenance Liquiline System CA80AL
142 Hauser
12 Maintenance
Effects on process and process control
‣
Take all the necessary precautions in time to ensure the operational safety and
reliability of the entire measuring point.
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WARNING
Process pressure and temperature, contamination, electrical voltage
Risk of serious or fatal injury
‣
If a sensor has to be removed during maintenance work, avoid hazards posed by
pressure, temperature and contamination.
‣
Make sure the device is de-energized before you open it.
‣
Power can be supplied to switching contacts from separate circuits. De-energize these
circuits before working on the terminals.
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CAUTION
Maintenance activities in automatic mode
Risk of injury from chemicals or contaminated media
‣
Before releasing the hoses, ensure that no action is running or about to start.
‣
Set the device to the manual mode.
‣
Wear protective clothing, goggles and gloves or take other suitable measures to protect
yourself.
NOTICE
Electrostatic discharge (ESD)
Risk of damaging the electronic components
‣
Take personal protective measures to avoid ESD, such as discharging beforehand at PE
or permanent grounding with a wrist strap.
‣
For your own safety, use only genuine spare parts. With genuine parts, the function,
accuracy and reliability are also ensured after maintenance work.
NOTICE
Failure to observe the maintenance intervals
Possibility of material damage
‣
Observe the recommended maintenance intervals.
12.1 Maintenance schedule
Interval Maintenance work
After every
reagent replacement,
during commissioning,
maintenance and
repair Carry out zero point calibration
Every 6 weeks Version without cooling module:
• Replace reagent CY80AL (typically; depending on the temperature and measuring
range)
• Replace standard CY80AL (typically; with a calibration interval of 48 h)
Every 3 months (Depending on the application; as required) clean the (optional) sample collecting
vessel
Every 5 months Replace cleaner CY800 (typically; with a cleaning interval of 48 h)
Every 6 months • Clean filter mats
• Replace dispensers
Every 12 months • (Where necessary) replace hoses:
Norprene, black
• Replace filter mats
• Replace the O-ring in the cover of the sample collecting vessel