Easidew PRO I.S. Intrinsically Safe Moisture Transmitter

Name: Easidew PRO I.S. Moisture Transmitter – Manual & Price Quote
Brand: MICHELL Instruments

Description

Overview

The Michell Easidew PRO I.S. moisture transmitter is an intrinsically safe instrument using a ceramic impedance moisture sensor, with a measuring range of -100 to +20 degC dew point. It is designed for sample gas such as hydrocarbons and natural gas, at pressures from 1 to 160 barg.

The transmitter is part of the Transmet I.S. family and provides a 4-20 mA output for the dew point measurement, with power supply options of 110/220 VAC 50 Hz and 24 VDC.

Engineering & Design

The ceramic impedance sensor measures the dew point directly in the gas stream, providing trace moisture measurement across the -100 to +20 degC dew point range. The calibration range of the unit matches the measuring range, with the unit serial number identifying the specific calibration.

The intrinsically safe design allows the sensor to be mounted in hazardous area locations, and the sensor mounting arrangement supports direct installation at the measurement point, minimising response time.

Key Features

Intrinsically safe design
Ceramic impedance moisture sensor
Measuring range -100 to +20 degC dew point
For hydrocarbon and natural gas sample gas
Pressure rating 1 to 160 barg
4-20 mA output
110/220 VAC 50 Hz and 24 VDC power
Sensor mounting for direct installation
Michell Transmet I.S. family

Applications

Natural gas moisture monitoring
Hydrocarbon gas drying verification
Pipeline gas quality measurement
Hazardous area moisture measurement
Trace moisture analysis

Specifications

Specification	Value
Manufacturer	Michell Instruments
Model	Easidew PRO I.S.
Type	Intrinsically safe moisture transmitter
Range	-100 to +20 degC dew point
Sensor	Ceramic impedance
Sample Gas	Hydrocarbon / natural gas
Pressure	1 to 160 barg
Output	4-20 mA
Power	110/220 VAC 50 Hz, 24 VDC

For gas quality measurement, the Easidew PRO I.S. moisture transmitter is the hazardous area choice, and Seven Star LLC supplies the Easidew PRO I.S. moisture transmitter with range confirmation.

The Easidew PRO I.S. transmitter measures the dew point with the ceramic impedance sensor, and the intrinsically safe design allows the installation in the hazardous area.

The Easidew PRO I.S. dew point transmitter measures the moisture of the compressed air and the process gas with the ceramic impedance sensor in the intrinsically safe housing. The transmitter is installed in the sample line with the process connection and the reading is displayed on the local screen. The two-wire loop provides the 4-20 mA output proportional to the dew point, and the instrument is certified for the Zone 0 installation with the appropriate barrier.

The sensor is calibrated against the reference dew point generator and the zero and the span are verified with the certified instruments. The replaceable sensor unit is swapped in the field without removing the transmitter body from the line. The Easidew PRO is used for the dryer monitoring and the instrument air quality verification.

The Easidew PRO transmitter is connected to the measuring point with the sample line and the flow through the sensor is maintained with the needle valve. The two wire connection is made with the shielded cable and the barriers of the safe area. The display provides the dew point and the pressure compensated values for the plant operator. The sensor housing is rated for the outdoor installation of the instrument air skid.

Why Seven Star LLC

Seven Star LLC supplies the Michell Easidew PRO I.S. moisture transmitter for gas quality projects across the Gulf, with verified specifications and technical support. Our team assists with range confirmation, sensor mounting, and integration with gas analysis systems.

We serve oil and gas and pipeline customers with reliable B2B supply of moisture measurement instrumentation throughout the GCC.

Installation & Operation

The transmitter is installed with the ceramic impedance sensor at the measurement point, and the 4-20 mA output carries the dew point signal to the analyzer or control system. The intrinsically safe design allows the sensor to be located in hazardous areas.

Calibration is verified against the unit documentation, and the power options of 110/220 VAC and 24 VDC cover the site supplies.

Specifying the Easidew PRO I.S. Correctly

Accurate trace moisture measurement starts with correct specification. When ordering a new or replacement transmitter, confirm the following:

The required dew point range. This transmitter covers -100 to +20 degC dew point, so check that the expected process moisture falls well inside it.
The gas composition and operating pressure. Dew point depends on pressure, so decide whether the reading is needed at line pressure or converted to another reference pressure.
The hazardous area classification and the intrinsically safe barrier or isolator to be used in the safe area.
The process connection and the sampling arrangement, either direct insertion or a sample cell with a flow control valve.

Installation and Commissioning

Moisture readings respond slowly if the sample system is poorly designed. Keep sample lines short and use stainless steel tubing rather than plastic, which absorbs and releases water. Take the sample from the top of the pipe to avoid liquids, and filter out particles and liquid carryover before the sensor. Wire the 4-20 mA loop through an approved intrinsically safe interface and check that the loop current matches the scaling configured in the control system. After first start-up, allow time for the sample system to dry down before accepting the reading. At very low dew points, reaching a stable value can take much longer than at higher moisture levels.

Maintenance and Troubleshooting

A reading that is wetter than expected usually points to a leak, a wet sample line or insufficient purge time, rather than a sensor fault.
Liquid water, glycol or hydrocarbon condensate reaching the sensor can damage it, so inspect filters and coalescers regularly.
Keep the calibration certificate for each sensor, and plan periodic recalibration or sensor exchange to keep the measurement traceable.

Applications in Oman and the GCC

Natural gas processing plants, pipeline custody transfer points and gas dehydration units in Oman and the GCC must meet tight water dew point specifications. The Easidew PRO I.S. moisture transmitter can be installed directly in the hazardous area near the process. This gives operators continuous confirmation that dehydration units are working and that sales gas meets its contract specification.

Supply from Seven Star LLC

Seven Star LLC supplies Michell moisture transmitters, sample handling components and replacement sensors. Share your gas, pressure and range requirements, and we will confirm the configuration.

Request a Quote for Easidew PRO I.S. Intrinsically Safe Moisture Transmitter

For the Easidew PRO I.S. moisture transmitter or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your measurement range, connection and configuration, and our specialists will respond with a detailed commercial proposal and the official Easidew documentation.

Reviews

There are no reviews yet.

How would you rate this product?

About brand

Moisture in gas is a small number with large consequences, and measuring it has been the work of Michell Instruments since 1974. Based in Ely, United Kingdom, the company makes dew-point transmitters, hygrometers and process analyzers for moisture, hydrocarbon dew point and oxygen.

Seven Star LLC lists Michell dew-point transmitters, the Condumax II analyzer and its replacement sensor parts, and supplies them to gas plants and compressed air users in Oman by exact order code.

Michell product families on this page

The Condumax II is an automatic hydrocarbon dew-point analyzer for natural gas. Several of its parts are listed separately: the CD2-SCR-002 hydrocarbon dew-point sensor cell, the CD2-WDC-002 water dew-point sensor assembly and the CD2-SX-WDC-002, which is the exchange version of that water dew-point sensor. The Easidew line is represented by the Easidew EA2 dew point transmitter and by the Easidew PRO I.S., an intrinsically safe moisture transmitter for hazardous areas. A ceramic impedance moisture sensor module is also listed, the sensing element behind these transmitters.

Where Michell analyzers are used

Hydrocarbon and water dew point are contract quality parameters for natural gas, so the Condumax II is found at gas processing plants, pipeline entry points and custody transfer stations. Easidew transmitters monitor dryers for instrument air and industrial gases, glove boxes, and dry gas feeds to processes that cannot tolerate water.

Ordering Michell parts: what we need

For Condumax II parts send the analyzer serial number and the part code, such as CD2-SCR-002, and state if a new assembly or the exchange item is wanted. For Easidew transmitters we need the measuring span in dew point or ppm, the process connection thread, the output signal, the operating pressure, the gas and the area certification. A photo of the label on the old transmitter usually answers most of these in one go.

Browse MICHELL Instruments products by category: Gas Analyzer Accessories, Gas Analyzer Systems.