M921 Precision Electromagnetic Flow Meter accurately measures flow of conductive liquids from 5 µS up. As there are no moving parts in the flow profile the flow meter can be applied to measure extremely polluted liquids containing even solid pollution. Evaluation and readout unit (transmitter) indicates both positive and negative flow as well as total and custom volume counters. Logged data can be shown on display or downloaded via RS232 or RS485 with Modbus protocol. Ex921 sensor for use in potentially explosive atmospheres in category II 3G EEx nA II T5/T6 is available in remote version of the flow meter.
M921 is similar to M920 in terms of 0.25% accuracy, empty pipe and electronics diagnostic, liquid temperature measurement through excitation coils, I/O ports, datalogger and other functions. Thanks to modernized design, the M921 is now much easier to operate and maintain. It has 6 buttons, large dot-matrix display, customizable screen elements, easy-to-use clamp opening mechanism and more mounting options. Datalogger memory increased by factor of 60.
M921 with its high accuracy is ideal for critical applications in chemical, pharmaceutical or food industry. Providing wide range of outputs, the M921 can be used in other areas such as paper, water, waste-water, etc.
Durable aluminium housing
Quick installation, simple configuration
Graphic display with backlight, 6-key keyboard
Flow measurement: actual, minimum, maximum
Volume measurement: total, positive, negative, daily, auxiliary
Datalogger with memory for ca. 900000 records.
Inputs/outputs: USB/RS232, RS485, 4-20mA current loop,
Frequency, Pulse, Status (relay), PLC digital input