MDM300

Advanced Dew-Point Hygrometer

A high-speed portable dew-point hygrometer, offering rapid spot-check measurements of dew point or moisture content in many applications, including compressed air, natural gas and highvoltage switchgear quench gas. This lightweight, ATEX, IECEx, FM, CSA, GOST and INMETRO certified product allows more measurements per working hour than any other comparable product. A hard-wearing but ergonomic case and an easy-to-use interface allows comfortable and practical operation in the toughest industrial environments.

Highlights

  • Repeatedly fast measurements at low pressure from less than 15 minutes for T95 to -60°C
  • Higher pressure measurements possible up to 350 barg
  • Long battery life: up to 48 hours of typical use between charges
  • Intuitive application kits allow quick and straightforward connection to your sample point
  • Durable, yet easy to handle and operate: designed for use in industrial environments
  • 4-20 mA external device input for transmitter calibration and validation
  • Lightweight: less than 1.5kg
  • 13 point traceable calibration certifi cate

Applications

Petrochemical – Metallurgy –

MDM300

 

Measurement technology Michell ceramic sensor
Accuracy ±1°C from -60 to +20°C dew point
±2°C from -100 to -60°C dew point
±0.2°C temperature
Calibrated range
Spot checks:
Online analysis:
 

-70 to +20°C dew point
-100 to -70°C dew point

Measurement units °C, °F, K dew point & gas temperature ppmV, ppmW for air, N2, H2, CO2, SF6
% RH, g/m3, g/kg
Option: active pressure (bara/g, psig, MPa, KPa)
Resolution (display) 0.1 for all dew-point derived units and autoranging where appropriate
Resolution (measurement) Better than 0.1°C dew point
Typical response speed T95 in .15 minutes to -60‹C dew point
Electrical Input/Output
Auxiliary inputs 4-20 mA loop-powered external input selectable as either dew point, temperature or pressure
Battery type NiMH 4.8V
Battery operating Life Up to 48 hours of typical usage between charges
Battery charger Intelligent charger (supplied)
Operating Conditions
Operating pressure 350 barg max
Operating environment Outdoors 0 to +100% RH condensing
Operating temperature -20 to +50°C
Storage/transport temperature -40 to +70°C
Mechanical Specifications
Display Blue LCD graphical display
Enclosure type Steel fi bre-loaded high-impact polyamide 6
IP/NEMA rating  IP66/NEMA 4
Gas connections 1/8” NPT female (other options available)
Flow across sensor 0.2 to 1.2 Nl/min
Gas wetted materials AISI 316L stainless steel
Outline dimensions 218mm x 170mm x 90mm (d x w x h)
Weight 1.35kg
General
Data logging 8 megabytes; Log interval: 5 to 60 sec; Logs per log fi le: Up to 10,000
Communications (Wireless) BluetoothTM range up to 5m (version 2.0)
User interface languages English, French, German, Italian, Portuguese, Spanish
Certifi cation Codes CE
Overview

MDM300

Advanced Dew-Point Hygrometer

A high-speed portable dew-point hygrometer, offering rapid spot-check measurements of dew point or moisture content in many applications, including compressed air, natural gas and highvoltage switchgear quench gas. This lightweight, ATEX, IECEx, FM, CSA, GOST and INMETRO certified product allows more measurements per working hour than any other comparable product. A hard-wearing but ergonomic case and an easy-to-use interface allows comfortable and practical operation in the toughest industrial environments.

Highlights

  • Repeatedly fast measurements at low pressure from less than 15 minutes for T95 to -60°C
  • Higher pressure measurements possible up to 350 barg
  • Long battery life: up to 48 hours of typical use between charges
  • Intuitive application kits allow quick and straightforward connection to your sample point
  • Durable, yet easy to handle and operate: designed for use in industrial environments
  • 4-20 mA external device input for transmitter calibration and validation
  • Lightweight: less than 1.5kg
  • 13 point traceable calibration certifi cate

Applications

Petrochemical – Metallurgy –

Technical Specifications

MDM300

 

Measurement technology Michell ceramic sensor
Accuracy ±1°C from -60 to +20°C dew point
±2°C from -100 to -60°C dew point
±0.2°C temperature
Calibrated range
Spot checks:
Online analysis:
 

-70 to +20°C dew point
-100 to -70°C dew point

Measurement units °C, °F, K dew point & gas temperature ppmV, ppmW for air, N2, H2, CO2, SF6
% RH, g/m3, g/kg
Option: active pressure (bara/g, psig, MPa, KPa)
Resolution (display) 0.1 for all dew-point derived units and autoranging where appropriate
Resolution (measurement) Better than 0.1°C dew point
Typical response speed T95 in .15 minutes to -60‹C dew point
Electrical Input/Output
Auxiliary inputs 4-20 mA loop-powered external input selectable as either dew point, temperature or pressure
Battery type NiMH 4.8V
Battery operating Life Up to 48 hours of typical usage between charges
Battery charger Intelligent charger (supplied)
Operating Conditions
Operating pressure 350 barg max
Operating environment Outdoors 0 to +100% RH condensing
Operating temperature -20 to +50°C
Storage/transport temperature -40 to +70°C
Mechanical Specifications
Display Blue LCD graphical display
Enclosure type Steel fi bre-loaded high-impact polyamide 6
IP/NEMA rating  IP66/NEMA 4
Gas connections 1/8” NPT female (other options available)
Flow across sensor 0.2 to 1.2 Nl/min
Gas wetted materials AISI 316L stainless steel
Outline dimensions 218mm x 170mm x 90mm (d x w x h)
Weight 1.35kg
General
Data logging 8 megabytes; Log interval: 5 to 60 sec; Logs per log fi le: Up to 10,000
Communications (Wireless) BluetoothTM range up to 5m (version 2.0)
User interface languages English, French, German, Italian, Portuguese, Spanish
Certifi cation Codes CE
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