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MI Michell Instruments Ltd.

MDM300 Series Portable Dew-Point Hygrometer

High-speed portable hygrometer for rapid dew-point spot checks up to 350 barg.

ModelMDM300
SKUMI-MDM300
CategoryDew Point & Moisture

Key Features

  • Fast measurements at low pressure — under 15 minutes T95 to −60 °C (−76 °F)
  • Higher-pressure measurement up to 350 barg (5076 psig)
  • Long battery life — up to 48 hours typical use
  • Intuitive application kits for quick sample-point connection
  • Durable, easy-to-handle industrial design
  • Lightweight — under 1.5 kg (3.3 lb)
  • 13-point traceable calibration certificate
  • Intrinsically safe MDM300 I.S. variant available with ATEX, UKCA, IECEx, cQPSus and EAC Ex approval

Overview

The MDM300 Series is a high-speed portable dew-point hygrometer for rapid spot-check measurements of dew point or moisture content in compressed air, natural gas, high-voltage switchgear quench gas and many other applications. The sensor responds quickly to moisture changes in either direction, so operators can take more measurements per day without waiting between readings.

Working Principle

A fast-responding moisture sensor in an intuitive application kit connects directly to the sample point, delivering low-pressure dew-point readings down to −60 °C in under 15 minutes for T95, or measuring at pressures up to 350 barg, with results and calibration traceable via a 13-point certificate.

Benefits

  • Rapid response lets technicians complete more spot checks per shift
  • Wide pressure range covers both low-pressure and high-pressure gas systems with one instrument
  • I.S. variant extends use into hazardous-area natural gas and bio-gas sites

Technical Specifications

Measurement
Low-Pressure Response<15 min T95 to −60 °C (−76 °F)
Max Pressure350 barg (5076 psig)
Calibration13-point traceable certificate
Physical
Weight<1.5 kg (3.3 lb)
Battery LifeUp to 48 hours typical use
Hazardous Area (I.S. variant)
ApprovalsATEX, UKCA, IECEx, cQPSus, EAC Ex

Downloads

Datasheet (PDF)PDF

Frequently Asked Questions

What warranty is offered on this product?

All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.

Do you provide installation and commissioning?

Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.

Are spares and calibration available locally?

Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.

How long is the typical lead time?

Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.

Request a Quote — MDM300 Series Portable Dew-Point Hygrometer

Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.