10 Operation
10.3 Decommissioning
10.2.3 Commissioning the flowmeter
ATTENTION
Increased wear and/or blockade through solid particles or abrasive fine particles in the liquid.
► Protect the flowmeter through correspondingly dimensioned operating filters in the pipe system.
ATTENTION
Measuring error when the pressure drops below the minimum pressure outlet at the outlet.
► Ensure that sufficient counter-pressure exists at the outlet by routing the piping upwards.
ATTENTION
Measuring error through gas inclusion in the pipe system.
► Before commissioning, make sure that the flowmeter is filled.
► Vent the pipe system.
Requirement:
ü The ambient conditions correspond to the operating data
ü Flowmeter installed correctly in the pipe system Ä Installation, removal,Page24
ü Flowmeter connection to the pipe system is stress-free
ü Pipe system is free of impurities
ü Pipe system vented
ü Shut-off devices in the feed line and outlet opened
Switch on the measuring system.
ð The flowmeter measures when the pick up generates a signal.
10.3 Decommissioning
10.3.1 Switching off the flowmeter
ATTENTION
Damage to the measuring unit.
In the case of strong changes to the flow rate (for example, rapid shutdown, pulsations, etc.) there is a
danger of excessive pressure differences.
► Ensure that the pressure loss of the flowmeter does not exceed the values specified on the rating
plate or the substitute operating data.
Ensure that the pressure loss of the flowmeter does not exceed the values specified on the rating
plate or the standardized substitute operating data Ä Technical data,Page8.
ð When the flow through the flowmeter is stopped, the generation of the signal stops automatically.
No further measures are required to switch off.
10.4 Recommissioning
10.4.1 Recommissioning the flowmeter
ATTENTION
Damage to device through hard, gummy or crystallized pumped liquid in the flowmeter.
► Before recommissioning, ensure that there is no hard, gummy or crystallized pumped liquid in the
flowmeter.
30
OIO 14en-GB Edition 2020-01
Operating instructions
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