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Mettler Toledo M200 Transmitter

Convenient and Reliable

For Basic Process Applications (pH/ORP, Oxygen, Ozone and Conductivity)

The M200 multi-parameter transmitter line covers pH, ORP, dissolved oxygen, ozone and conductivity measurements. 
Plug and Measure provides compatibility and reliable operation for ISM sensors as well as the complete digital easySense line.
The convenient and comfortable operation is performed thanks to the large display, plain text interface, quick access menu, easily accessible wiring terminals and quick setup guide. With the Transmitter Configuration Tool (TCT) provided for the M200 commissioning as well as maintenance becomes substaintially easier.
  • Plug and Measure functionality
  • Multi-parameter unit
  • 4-wire installation
  • Input for digital sensor signals (easySense™ or ISM sensors)
  • 0/4…20mA current outputs, galvanically isolated
  • 2 configurable relays
  • Up to IP 65 rated, depending on the transmitter version
  • Password protection against accidental parameter changes
  • Large, backlit display with 4 text lines
  • Quick setup mode
  • 1-channel or 2-channel versions (½ DIN and ¼ DIN)
  • 8 languages: English, German, French, Italian, Spanish, Portuguese, Russian and Japanese
  • AC/DC power supply

Physical and Electrical Specifications



Operator interface

4 line back-lit LCD; 5-tactile keys


1/4 DIN Model Dimensions (H x W x D)

4.01 x 4.01 x 5.51 in (102 x 102 x 140 mm)

Max. Depth,- panel mounted

4.96 in (126 mm), excluding plug-in connectors

1/2 DIN Model Dimensions (H x W x D)

5.90 x 5.90 x 4.57 in (150 x 150 x 116 mm)

Max. Depth,- panel mounted

3.46 in (88 mm)



Weight, 1/4 DIN Models

1.5 lb (0.7 kg)

Weight, 1/2 DIN Models

2 lb (1 kg)

UL Electrical Environment

Installation (overvoltage) Category II


UL listed, CE compliant; IP 65 - 1/2 DIN wall mount and 1/4 DIN panel seal


Compliant with EN61326-1:2013 (Industrial Environment Emission: Class B,

Immunity: Class A)


Universal 100-240 VAC, 50-60 Hz or 20-30 VDC; 5 W

(on power loss, all settings are retained in non-volatile memory without batteries)



Storage temperature

-40 to 70 °C (-40 to 158 °F)

Ambient temperature operating range

-10 to 50 °C (14 to 122 °F)

Relative humidity

0 to 95%



Analog outputs (as specified for individual models)

Powered 0/4-20 mA, 22 mA alarm, 500 ohms maximum load; not for use with

externally powered circuits

Analog output accuracy

± 0.05 mA

Analog output scaling


Relays (as specified for individual models)

All contacts are potential free, with adjustable hysteresis and time delay


250 VAC/30 VDC, 3 A, resistive

Digital communications

USB, type B connector, for remote configuration and data acquisition with TCT software

Discrete input (as specified for individual models)

Accepts dry contact closure for remote PID control auto/manual selection

Outputs – see p. 4 for ratings

One Channel

Two Channel


4 - high, low, outside, between, USP or EP

6 - high, low, outside, between, USP or EP


2 - SPDT


Analog Output Signals



Discrete Inputs




  • Hướng dẫn cài đặt các thông số cơ bản
  • Operation Manual
  • Data Sheet for M200 Analytical Transmitters
  • Technical Data