Michell Instruments M12 Specifications

Dew-Point Transmitters

Easidew Transmitters

Industrial Dew-Point Transmitters

Simple to install and maintain, the Easidew transmitter series measures dew point and moisture
content and is available with a range of process connections and electrical connectors. The Easidew

I.S. transmitter has global intrinsically safe certications and all Easidew models are available with

service exchange program which reduces the cost of maintenance.

Highlights

• Measurement ranges -110 up to +20°Cdp

• Dew point or ppmV moisture content output

• 2-wire loop power connection

• Accuracy ±2°Cdp

• Traceable calibration certicate

• Easidew I.S. IECEx, cCSAus, FM and ATEX approvals

• Low cost of ownership and easy maintenance with
sensor exchange program

• 316 Stainless steel sensor and sample blocks

• 5/8” UNF, 3/4” UNF, G 1/2” process connections

• KF40 Glove Box ange

• MiniDIN 43650, M12 electrical connectors

• Oxygen Service cleaned

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Applications

• Compressed air Class 1 to Class 6 dryers

• Breathing air

• Hydrogen coolant

• Inert and bulk gases

• Glove boxes

• Welding gases

• Hazardous areas

• Oxygen purity

Dew-Point Transmitters

Easidew Transmitters

The Universal Moisture Transmitter

The Easidew transmitter has a wide measurement range
from -110 to +20°Cdp and one stocked product can be used
across all class 1 to class 6 industrial dryer applications.

The Easidew family of industrial transmitters incorporates
the latest Michell advanced ceramic technology providing
stable, reliable and repeatable moisture measurements for
all dew point applications.

Ease of Installation

Flexible product design ensures the unit can be quickly and
economically installed.

• Mini DIN 43650 form C or M12 5 pin electrical
connectors

• 5/8” UNF, 3/4” UNF, G1/2” BSP process connections

• KF40 Glove Box type ange process connection

• 316 stainless steel transmitter sample blocks

• On site conguration and diagnostic communication tool

Service Exchange/Recalibration
Program

Michell oers 2 services for customers who want minimum

downtime and sensor traceability, while maintaining the
reliability of their system:

• Sensor Exchange - Customers place an order for a
guaranteed, reconditioned sensor. When this arrives,
they exchange it for the installed sensor which is
returned to Michell, resulting in zero process downtime.

• Recalibration - Customers return their installed sensor
to Michell, where they are inspected, checked and re­calibrated before being returned. This provides on-going
sensor traceability for the process.

Safety and Integrity

The mechanical design considers the health and safety quality

requirements of the end user, oering an ultra-high process

pressure barrier, along with meticulous levels of product
traceability and quality.

• High performance 450 bar process media barrier

• Optional gas wetted parts BS EN 10204 3.1 material

certied

• Optional cleaning for enriched oxygen service

• 13 point calibration certicate

Measurement Performance

The transmitter uses Michell’s market leading ceramic
measurement technology coupled with the latest generation,
sophisticated microcontroller electronics to provide accurate
and stable measurement across the transmitters product life.

• Accuracy ±2°Cdp

• Fast response to moisture changes

Flexibility of Ownership

The Easidew transmitter has a RS485 communication
system, which gives customers the opportunity to re-range
and re-scale with a communication kit for a wide variety of
moisture measurements.

• Re-ranging 4–20 mA within the –110 to +20°Cdp range

• Moisture scaling — dew point, ppm

V

Speed of Supply

The transmitter is manufactured within Michell’s world­leading high-volume moisture transmitter manufacturing
centre in the United Kingdom, which ensures reliability and

repeatability of delivery and eld supported by a network of

Michell’s global service centres.

Global Certications

The Easidew series has a broad range of certications to

ensure a single stocked unit can be used in any global
application.

• Easidew I.S. - ATEX & IECEx

• Easidew I.S. - cCSAus (US and Canada) & FM

• Easidew I.S. - EX-TC TR

• Easidew - UL approval

• All Easidews - Canadian pressure vessel approved (CRN)

Michell has a large team of experienced eld and factory

based application engineers who are available to assist with
any dew point sensor application.

• Calibration manufacturing system is traceable to
globally recognized NPL and NIST ISO 17025 standards

Installation Accessories

Transmitters are available with a range of practical accessories.

• 5/8” UNF, 3/4” UNF, G1/2” BSP Sample blocks

• Compact simple sample systems

• Process connection adaptors

Customization

If your application requires a customized sensor, we have
specialized design and manufacturing capability to cover your
requirements.

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