Michell Instruments ES70 Specifications

Dew-Point Sampling

ES70 Sampling System

Sample extraction, handling and conditioning techniques are of critical importance to assure optimal performance and reliability of all analysers which accurately quantify speciﬁ c components within a process gas or liquid composition. With a wide variety of options required for pressure and ﬂ ow control, ﬁ ltration, isolation and sample temperature control, it can be diﬃ cult to see what is really required to get maximum performance from your analysers in any given application.

Highlights

• Indoor panel or outdoor enclosure mounting options

• Process connection via 6mm or 1/4” tube ﬁ ttings

• High quality components, stainless steel tubing and ﬁ ttings

• Sample inlet pressure up to 138 barg

• Flexible ﬁ ltration options

• Choice of transmitter, ﬂ ow and pressure control

• Comprehensive documentation options with BS EN 10204 3.1 certiﬁ cation and NACE MR0175 available

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Applications

• Natural gas production, processing & transmission

• Biomethane gas production

• Fiscal metering of gas

• LNG production processing and receiving terminals

• Hydrocarbon reﬁ nery processing

• Catalyst protection

• Polymer production

• CNG production

• Heat treating furnaces

• Petrochemical process liquids

Dew-Point Sampling

ES70 Sampling System

Our ES70 series sample systems provide a choice of indoor or outdoor compatibility, sensor mount selection, along with a wide range of features to facilitate regulation of pressure and ﬂ ow and the removal of contaminants. This enables the system to deliver a properly conditioned sample to the analyser for reliable measurements and troublefree operation. The optional integrated bypass system increases transport speed of the sample while reducing wastage. Each high quality sample system is constructed from 316 stainless steel components, with BS EN 10204 3.1 material certiﬁ cates and compliance to MR 0175/ISO 15156 available on request.

The ES70 series is designed to simplify sample system conﬁ guration by providing a set of choices for all requirements, such as panel or enclosure mount, ﬁ ltering, upstream and downstream pressure and ﬂ ow control etc. This provides a quick and simple method to choose all the required components suitable for the application requirements.

System Designs

Michell Instruments has over 40 years of experience providing dew-point and moisture measurement solutions. We also design and manufacture a broad range of sampling systems for a wide spectrum of industries.

Our sampling system designs ensure that dew-point and moisture measurements can be performed in the most suitable conditions. The ES70 sampling systems can be supplied in various conﬁ gurations and are designed to be used in conjunction with other Michell products, as follows:

• Easidew PRO XP Transmitter

• Easidew PRO I.S. Transmitter (with or without optional ﬁ eld display)

• Promet I.S. (with or without pressure transmitter)

• Liquidew I.S.

Process connections are available with either 6mm or 1/4” tube ﬁ ttings.

High Quality Materials

To ensure continuous and reliable dew-point or moisture measurement, it is important that the transmitter is exposed to stable conditions of the sample being monitored.

The ES70 sampling system utilises high quality 316 stainless steel components which provide the optimum response to moisture changes in the process.

Mounting Variants

Depending on the application, the sampling system can be supplied in 5 variations:

• Mounted on an open panel for indoor systems

• Mounted in an Outdoor Enclosure, IP66/NEMA4X rated, with or without window, 304 grade stainless steel

• Mounted in an Outdoor Enclosure, IP66/NEMA4X rated, with or without window, 316 stainless steel

Filtration and Fast Loop Flexibility

If the sample contains impurities it is crucial to remove the contaminants before they reach the sensing device. A fast-loop bypass ﬂ ow arrangement can also be included to reduce sample ﬂ ow response time lag and to enable the ﬁ lter to be drained automatically of any potential hydrocarbon liquids and hydrates formed. The ES70 system can be supplied with various ﬁ ltration and fast loop options;

• Particulate Filter: 5 micron stainless steel mesh

• Coalescing Filter with manual drain

• Combined coalescing/oleophobic membrane with continuous drain ﬂ ow (fast loop) - with single stage regulation & glass tube (20 barg rated) or armoured ﬂ ow meter (130 barg rated) with integral ﬂ ow metering valve.

• Combined coalescing/oleophobic membrane with continuous drain ﬂ ow (fast loop) - with Two Stage Regulation & Armoured ﬂ ow meter (130 barg rated) with integral ﬂ ow metering valve.

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Dew-Point Sampling

Pressure and Flow Control Options

Various options are available for management of pressure and ﬂ ow within the sampling system;

• Upstream and Downstream, single stage or two stage pressure regulation, with a choice of gauges.

• Downstream ﬂ ow metering with a choice of glass tube or armoured ﬂ ow meters

Enclosure Environmental Control

Sampling systems ﬁ tted within enclosures may need heating to maintain a constant temperature environment of at least 10oC above the highest envisaged dew point temperature independent of surrounding temperature variations. Similarly, the enclosure temperature may need to be controlled when ambient temperatures rise in summer months.

• Electrical heating with a choice of ﬁ xed and variable thermostats

• Vortex Cooling (instrument air required)

Documentation Packages

Michell provides soft copy ‘as built’ drawings and hazardous area certiﬁ cates, hard copies of calibration certiﬁ cates, pressure leak test certiﬁ cates (as applicable), a packing checklist and the relevant manuals. Customers can also choose to select other standard documentation lists, as well as duplicate documentation packs and material certiﬁ cation (EN10204-3.1 certiﬁ cation and NACE MR0175 conformity). If you require additional documentation with your system, please contact us for more information.

Dimensions

Indoor

750 29.5"

770 30.3"

Outdoor

750 29.5"

700 27.6"

800 31.5"

758 29.8"

300 11.8"

System Customisation

If the ES70 sampling system does not meet your particular application requirements, we have a specialised design and manufacturing facility to cover your requirements. Your Michell oﬃ ce or authorised distributor will be pleased to discuss your speciﬁ c application and installation requirements.

838 33"

800 31.5"

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Dew-Point Sampling

Technical Speciﬁ cations

Electrical Speciﬁ cations

Supply voltage (sensor) 14 to 28 V DC

Supply voltage (sampling system) 240VAC or 110VAC

Operating temperature

ES70 ﬁ tted with monitor 0 to +50°C

ES70 without monitor -20 to +60°C

Gas Operating Inlet Pressure 138 barg maximum

Gas Flow rate 1 – 5 nl/min

Liquid Operating Inlet Pressure 50 barg maximum

Liquid Flow rate Min 0.01 l/min, max 10 l/min

0.1 to 0.3 l/min recommended

Mechanical Speciﬁ cations

Process connections and materials Inlet/outlet process connections via 6mm or 1/4” tube ﬁ ttings, 316 SS

Gas wetted parts Transmitter sample block, ﬁ lter housing and ﬁ ttings, 316 SS

Dimensions Indoor panel: 750 x 750 x 2mm

Outdoor: 800 x 800 x 300mm

Dew Point Measurement Speciﬁ cations * See chosen sensor datasheets

*For all other speciﬁ cations refer to the Easidew/Liquidew/Promet datasheets, available from your local Michell Instruments representative or visit

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Michell Instruments ES70 Specifications

Specifications and Main Features

Frequently Asked Questions

User Manual