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Michell Instruments Easidew Portable

The Easidew Portable Hygrometer has been designed to make in-field checks of the dew point in air and gases as simple and quick as possible. This totally selfcontained instrument, weighing only 4 kg, is delivered ready to use. Simply connect your sample gas to the Quick Connect fittings, turn on the instrument and it will instantly trend the dew point of the applied sample.

Intelligent and Interchangeable Sensor Technology

The key to Easidew's performance is its sensor technology. Michell's Advanced Ceramic Moisture Sensor is coupled with the latest microprocessor based measurement circuitry to produce a fully calibrated and interchangeable sensor transmitter module.

All calibration data is stored within the memory and so sensor exchange for calibration or service can be effected in seconds, even by untrained personnel.

Furthermore, the Easidew Transmitter module can be used as a standalone dew-point transmitter or coupled with the Easidew On-line Hygrometer display unit to form a fixed location, mains powered hygrometer.

Total flexibility, interchangeability and ease of implementation.

Fully Integrated Sampling System

Easidew is unique amongst portable hygrometers. We have built into the design a complete sampling system that allows you to easily measure the dew point of any air or gas line, clean or dirty, at up to 2 MPa pressure.

A fixed orifice port arrangement allows you to select, simply by reversing inlet and outlet ports, whether to measure at atmospheric or line pressure.

An integrated filter housing, accepting standard fibre filter cartridges, gives 99.5% protection against particles to 0.3 micron. All this comes as standard.

Optionally, Swagelok couplings can be specified to allow operation of the unit at up to 30 MPa, equivalent to 300 barg.

  Wide measurement range
  Fast and easy to use
  Clear red LED display
  Battery charge level indicator
  IP68 (NEMA 6P) rated
  Traceable calibration

Technical Specifications:

  Measurement Range: -100 to +20 C dp
  Accuracy: 2 C dew point
  Operating temp: -20 to +50 C
  Storage temperature: -40 to +75 C
  Operating Pressure: 0.1 to 2 MPa standard; up to 30 MPa (300 barg) with optional Swagelok couplings
  Display: 3.5 digit LED display flush mounted
  Outputs: 4-20 mA signal via " jackplug, max load resistance 400 W
  Case: Yellow polypropylene, Class 5 re-cyclable. Charger, sample tubing and output jack held in case lid
  Ingress protection: IP68 (NEMA 6P) rated with case closed, IP54 (NEMA 4) rated with case open
  Power: Four C type re-chargeable cells. Battery status indicator
  Charger: Universal input type with IEC socket
  Run time: 12-16 hours
  Charge time: 16 hours (max)
  Sample connections: Legris type push fit pneumatic fittings for gas in / gas out
  Sample block: Stainless steel, fully self-contained sample system with provision for filtration via standard drop-in cartridge and fixed orifice ports for flow control/pressure/atmospheric measurement
  Sample tubing: 2 m of 6 mm OD ptfe supplied
  Filter cartridge: 99.5 % retention @ 0.3 micron supplied with cartridge fitted. Spare cartridges are available (part no: 9996031)


Data Sheet
Order Codes

Ordering Information


EAP-STD - Portable Hygrometer, quick release fi ttings (with display, integral fi lter, fl ow & pressure control with 2m (6.5) PTFE sample tube)

EAP-HP - Portable hygrometer, High Pressure, (with display, integral fi lter, fl ow control & Swagelok fi ttings for high pressure operation)



Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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Keison International Ltd. trading as:
Keison Products, VoIPon Solutions & 4Gon
keison VoIPon Solutions 4Gon