Distillation Process Analyzer DPA-4.5
Maintenance
10.2 Maintenance plan
The following sections describe the maintenance work required for
optimum and trouble-free operation.
If increased wear is detected at regular inspections, the required
maintenance intervals should be shortened according to the actual
degree of observed wear.
Should you have any questions on maintenance work and
intervals, please contact the manufacturer at the service address
given on page 14.
Interval
Maintenance work
To be performed by
Daily
General visual inspection
Specialists for potentially
explosive atmospheres
Depending on application:
Monthly to every 2 years
Clean/replace the distillation flask
Every 6 months
Check the safety equipment
Check that all electrical terminals are
fastened
Ex e, p box seals
Annually
Check Ex p control
Check fill level measurement
Depending on product:
annually or at significantly
shorter intervals
Check/clean flame arresters
Annually to every 2 years
Service/replace metering pump
Every 2 years
Clean filters for product and cooling
medium
Clean receiver
Replace pressure differential measuring
transducer
Replace heating cartridges
Replace temperature sensors for flask
base and vapor
Clean/replace IBP sensor
Clean/replace leak sensor
Replace all product-conveying and
pneumatic valves
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December 2013