5.6.2 Cleaning the measurement line of the underpressure controller
❒ Undo the screws on the front cover plate
❒ Unlock cover plate to the right and lift off to the front
❒ Loosen the twin wire clamps (A) with pliers and remove the measurement line (B)
❒ Clean the measurement line with gentle compressed air
➥ WARNING! Do not blow compressed air into the differential pressure
transmitter!
It may damage the measuring device
❒ After cleaning, insert the measurement line into the measuring nipple and the “P2”
connection of the differential pressure transmitter and attach using twin wire
clamps
Servicing the system
5
Maintenance work by technicians
Operating Instructions PE1 Pellet 7-35 / PE1 Pellet Unit 7-20 | B1001020_en
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