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Datasheet summary

M400 ISM Type 1-2 Channel Transmitter

Engineering summary from PDF text extraction for M400 ISM Type 1-2 Channel Transmitter. Verify every value with the OEM datasheet.

Summary

Product Identification

M400 4-wire Transmitter series featuring Intelligent Sensor Management (ISM®) technology. Available in Type 1 and Type 2 configurations.

Overview

The M400 transmitter is a multi-parameter device supporting pH/ORP, dissolved oxygen (oDO), dissolved carbon dioxide, and conductivity measurements, depending on the specific model. It offers advanced process control capabilities with a high-contrast touchscreen interface and soft keys for operation in demanding environments. Online diagnostics and HART communication facilitate integration with process control systems.

Key Features

  • Robustness: Touchscreen and soft keys for convenient operation; rugged design for industrial environments and temperature extremes.
  • Predictive Maintenance: Advanced ISM functionality for predictive maintenance, iMonitor™ display for ISM diagnostics, and real-time online monitoring via HART.
  • Flexibility: Multi-parameter support; compatible with major asset management tools.
  • Error-free Operation: Plug and Measure functionality for fast commissioning; direct connection of pre-calibrated sensors via iSense™; configuration via USB stick.

Technical Data

Power Supply

  • 100 to 240 V AC, 50/60 Hz, 10 VA
  • 20 to 30 V DC, 10 VA

Outputs and Inputs

  • Analog Outputs: 4 × 0/4 to 20 mA, 22 mA alarm, galvanically isolated (with HART)
  • Relays:
    • 2 SPDT, mechanical, 250 V AC or 30 V DC, 3 A
    • 2 SPST, Reed, 250 V AC or 250 V DC, 0.5 A, 10 W
  • Digital Inputs: 2
  • Analog Input: 1 × 0/4 to 20 mA

Control

  • PID Controller: 1

User Interface

  • Display: 4.0" TFT black and white touchscreen, 320 × 240 pixels
  • Languages: 10 (English, German, French, Italian, Spanish, Portuguese, Russian, Japanese, Korean, Chinese)
  • USB Interface:
    • 1 USB host (data logging, configuration loading/saving)
    • 1 USB device (software update)

Environmental

  • Ambient Temperature: –20 to +50 °C (–4 to 122 °F)
  • Relative Humidity: 0 to 90 % non-condensing
  • Enclosure Material: Aluminum die cast
  • Enclosure Rating: IP66 / NEMA 4X

Approvals and Certificates

  • CE
  • ATEX Zone II
  • cCSAus Cl1 Div2 (for M400 Type 2 ISM)

Parameter Compatibility

ParameterM400 Type 1 ISMM400 Type 2 ISM
pH/ORP
pH/pNa
UniCond 2-e/4-e
Conductivity 2-e
Conductivity 4-e
Amp. DO ppm/ppb/trace• / •¹ / –
Opt. DO ppm/ppb• / •¹
Amp. O₂ gas ppm/ppb/trace– / – / –
Opt. O₂ gas ppm
Dissolved Ozone
Dissolved Carbon Dioxide
CO₂ hi
GPro 500 TDL

¹ Thornton high performance dissolved oxygen and pure water optical sensors only.

Ordering Information

  • M400 Type 1 ISM: Order no. 30 490 171
  • M400 Type 2 ISM: Order no. 30 490 172

Disclaimer

This extracted summary may not include all figures, footnotes, or revisions present in the original OEM PDF datasheet. For definitive technical specifications and contractual data, always refer to the specific revision of the OEM PDF document applicable to your project.

Official datasheet (PDF)

Lenntech datasheet mirror

Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.