Specifications

Transmitter M300 FLOW 7
© 09 / 08 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M300 FLOW
Printed in Switzerland 52 121 319
1 Introduction
Statement of Intended Use – The M300 Flow transmitter is a single- or four- channel online
process instrument for measuring conductivity or resistivity of fluids. It will interface with
a variety of different Mettler-Toledo sensors, which connect to the transmitter using cables of
varied lengths.
A large four line backlit Liquid Crystal Display conveys measuring data and setup information.
The menu structure allows the operator to modify all operational parameters by using keys on
the front panel. A menu-lockout feature, with password protection, is available to prevent the
unauthorized use of the meter. The single channel M300 transmitter can be configured to use its
two analog and/or four relay outputs for process control. The four channel model uses four
analog and/or six relays.
The M300 transmitter is equipped with a USB communication interface. This interface provides
real-time data output and complete instrument configuration capabilities for central monitoring
via Personal Computer (PC).
2 Safety instructions
This manual includes safety information with the following designations and formats.
2.1 Definition of equipment and documentation symbols
and designations
WARNING: POTENTIAL FOR PERSONAL INJURY.
CAUTION: possible instrument damage or malfunction.
C
NOTE: Important operating information.
On the transmitter or in this manual text indicates: Caution and/or other possible hazard
including risk of electric shock (refer to accompanying documents)