Badger Meter ModMAG M Series - System Description; Measuring Principle

SYSTEM DESCRIPTION
The BadgerMeter model M2000 electromagnetic flow meter is intended for fluid metering in most industries including water,
wastewater, food and beverage, pharmaceutical and chemical. The meter is intended for the metering of all fluids with electric
conductivity of at least 5 µS/cm (20 µS/cm for demineralized water). The meter has a high degree of accuracy, and measuring
results are independent of density, temperature and pressure.
The basic components of an electromagnetic flow meter are:
• The sensor, which includes the flow tube, isolating liner and measuring electrodes.
• The transmitter, which is the electronic device responsible for the signal processing, flow calculation, display and
outputsignals.
Transmitter
Sensor
®
Figure 1: Transmitter and sensor
The construction materials of the wetted parts (liner and electrodes) should be appropriate for the intended type of service.
Review all the compatibilities consistent with the specifications.
Each meter is factory tested and calibrated. A calibration certificate is included with each meter.
Measuring Principle
In accordance with Faraday’s induction principle, electric voltage is induced in a conductor moving through a magnetic
field. In the case of electromagnetic flow measurement, the moving conductor is the flowing fluid. Two opposite measuring
electrodes conduct the induced voltage, which is proportional to flow velocity, to the transmitter. Flow volume is calculated
based on pipe diameter.
System Description
Page 6 March 2022MAG-UM-01272-EN-21