Lutz BE10 User Manual

2. Modular Flow Meter System TS
Theowmeteroperatesaccordingtothepositivedisplacementprinciple.Inahousingttedwithinletand
outletisameasuringchamberthroughwhichtheuidisforcedtoowonitswaythroughthehousing.
Inthemeasuringchamber,anutatingdiscblockstheuid`sclearpath.Asitowsthroughthemeasuring
chamber,theuidpushesthenutatingdisctooneside.Itistheactionofdisplacingtheimpedimentwhich
produces the wobble movement of the disc and circular motion of the nutating disc shaft. By means of a
driver, a magnet with several poles is set into rotation, which is able to activate a magnetically switched
contact through the lid of the housing. Every revolution of the nutating disc is assigned to a constant volume
andaxednumberofpulses,sopermittingtheelectonicevaluatingsystemtodeterminethevolumetric
owthroughthenumberofreceivedpulses.
For practically-orientated application, the ow meter system is made up of various modules:
À Operating unit
Electronicevaluatingunitwithtouchscreenforoperationoftheow
meter.
Á Protection cap
Protectsthemodulesbasicowmeter,relaymoduleorpowersup-
ply unit when the operating unit is decentrally installed.
Pulse converter
Ampliesthesignalsfromthebasicowmeter.Isrequiredifthe
signals need to be transmitted further than 5 m.
 Relay module
Switches the external electrical appliances such as pump motor and
solenoid valve and is controlled by the evaluating electronics of the
operating unit.
Power supply unit
Supplies power to the operating unit when battery-powered opera-
tion is not desired and when no relay module is needed.
Communication module
Is the interface to other management, control or process control
systemswithdierentinputsandoutputs.
à Basic ow meter
Housing and measuring chamber with all components for volumetric
measurement which come into contact with the transported medium.
The ow meter can be used in two dierent operating modes:
Manual mode: Forllingusingamanuallyoperatednozzle.The
part volume meter is reset to zero and the required
volume is metered while the nozzle is being
operated.
Volume preset: Thepreselectedvolumeislledbypressingakey.
Volume preset is possible only when relay module
is connected.
Fig.1-Operatingunitandowmeter
Fig. 2 - Relay module and protection cap
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0698-651 Operating unit - 04/2021
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Lutz BE10 Specifications

General

Brand	Lutz
Model	BE10
Category	Control Unit
Language	English