Mettler Toledo M400 Especificações descarregar pdf (Página 9)

Transmitter M400 9

Printed in Switzerland 52 121 378

1 Introduction

Statement of Intended Use – The M400 multiparameter transmitter is a single- channel online

process instrument for measuring various properties of fluids and gases. These include Conduc-

tivity, Dissolved Oxygen, Dissolved Carbon Dioxide (CO

) and pH / ORP. The transmitter handles

also ISFET sensors used for pH measurement. The M400 is available in three different levels.

The level indicates the amount of measurement parameters which can be covered. The para-

meters are indicated on the label on the back of the system.

The M400 is a unique mixed mode transmitter who can handle conventional sensors (analog)

or ISM sensors (digital).

M400 parameter fit guide

Parameter Type 1 Type 1 Cond Ind Type 2 Type 3

Analog ISM Analog ISM Analog ISM Analog ISM

pH / ORP • • – • • • • •

pH (ISFET) • – – – • – • –

Conductivity 2-e • – – – • – • –

Conductivity 4-e • • – • • • • •

Conductivity inductive – – • – – – – –

Dissolved oxygen ppm / ppb – – – – •/– •/– •/• •/•

Oxygen in gas ppm / ppb – – – – •/– •/– •/• •/•

Oxygen optical ppm / ppb – – – – – •/– – •/•

Dissolved Carbon Dioxide – – – – – – • –

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 un-

authorized use of the meter. The M400 Multiparameter transmitter can be configured to use

its four analog and / or six relay outputs for process control.

The M400 Multiparameter transmitter is equipped with a USB communication interface. This in-

terface provides real-time data output and complete instrument configuration capabilities for

central monitoring via Personal Computer (PC).

This description corresponds to the firmware release, version 1.4 for the transmitter

M400 Type 1, M400 Type 2 and M400 Type 3 as well as to the firmware release, version 1.1

for the transmitter M400 Type 1 Cond Ind. Changes are taking place constantly, without prior

notification.

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Mettler Toledo M400 Especificações Página 9