Michell Instruments ES70 Operating Manual
ES70
Sampling System
User’s Manual
97506 Issue 1
December 2017
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ES70
Sampling System
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© 2017 Michell Instruments
This document is the property of Michell Instruments Ltd. and may not be copied or
otherwise reproduced, communicated in any way to third parties, nor stored in any Data
Processing System without the express written authorization of Michell Instruments Ltd.
ES70 User’s Manual
Contents
Safety ................................................................................................................................vi
Electrical Safety ...........................................................................................................vi
Pressure Safety ............................................................................................................vi
Toxic Materials .............................................................................................................vi
Repair and Maintenance ...............................................................................................vi
Safety Conformity ........................................................................................................vi
Abbreviations .....................................................................................................................vii
Warnings ...........................................................................................................................vii
1 INTRODUCTION ............................................................................................VIII
1.1 Materials ......................................................................................................... viii
1.2 System Designs ................................................................................................ viii
1.3 Filtration and Fast Loop ....................................................................................... 1
1.4 Pressure / Flow Control and Measurement ........................................................... 1
1.5 Mounting Variants ............................................................................................. 1
1.6 Enclosure Environmental Control ........................................................................ 1
2 INSTALLATION ..................................................................................................2
2.1 Sampling System Installation ............................................................................... 2
2.1.1 Mounting Details ........................................................................................... 2
2.1.2 Gas Connections ........................................................................................... 2
2.1.3 Electrical Connections .................................................................................... 2
3 OPERATION ......................................................................................................3
3.1 Sampling Start-Up Procedure ............................................................................... 3
3.2 Sample Flow ‘Start-Up’ Procedure ........................................................................ 3
4 GOOD MEASUREMENT PRACTICE .......................................................................4
5 MAINTENANCE ..................................................................................................5
5.1 General Maintenance Guidelines .......................................................................... 5
5.2 Filter Element Maintenance ................................................................................. 5
5.2.1 Particulate Filter Maintenance ........................................................................ 5
5.2.2 Coalescing Filter Maintenance ........................................................................ 7
5.3 Transmitter Maintenance ..................................................................................... 9
Figures
Figure 1 Particulate Filter Maintenance 1 ...................................................................5
Figure 2 Particulate Filter Maintenance 2 ...................................................................6
Figure 3 Particulate Filter Maintenance 3 ...................................................................6
Figure 4 Particulate Filter Maintenance 4 ...................................................................6
Figure 5 Coalescing Filter Maintenance 1 ...................................................................7
Figure 6 Coalescing Filter Maintenance 2 ...................................................................7
Figure 7 Coalescing Filter Maintenance 3 ...................................................................8
Figure 8 Coalescing Filter Maintenance 4 ...................................................................8
Figure 9 Coalescing Filter Maintenance 5 ...................................................................8
Figure 11 Outdoor Enclosure Dimensions ..................................................................12
Figure 10 Indoor Panel Dimensions ..........................................................................12
iv 97506 Issue 1, December 2017
ES70 User’s Manual
Appendices
Appendix A Technical Specifi cations .............................................................................. 11
Appendix B Quality, Recycling & Warranty Information ...................................................14
Appendix C Return Document & Decontamination Declaration ........................................ 16
Michell Instruments v
ES70 User’s Manual
Safety
The manufacturer has designed this equipment to be safe when operated using the procedures
detailed in this manual. The user must not use this equipment for any other purpose than that
stated. Do not apply values greater than the maximum value stated.
This manual contains operating and safety instructions, which must be followed to ensure the safe
operation and to maintain the equipment in a safe condition. The safety instructions are either
warnings or cautions issued to protect the user and the equipment from injury or damage. Use
competent personnel using good engineering practice for all procedures in this manual.
Electrical Safety
The instrument is designed to be completely safe when used with options and accessories supplied
by the manufacturer for use with the instrument.
Pressure Safety
DO NOT permit pressures greater than the safe working pressure to be applied to the instrument.
Refer to Appendix A, Technical Specifi cations.
Toxic Materials
The use of hazardous materials in the construction of this instrument has been minimized. During
normal operation it is not possible for the user to come into contact with any hazardous substance
which might be employed in the construction of the instrument. Care should, however, be exercised
during maintenance and the disposal of certain parts.
Repair and Maintenance
The instrument must be maintained either by the manufacturer or an accredited service agent. Refer
to www.michell.com for details of Michell Instruments’ worldwide offi ces contact information.
Safety Conformity
This product meets the essential protection requirements of the relevant EU directives.
vi 97506 Issue 1, December 2017
ES70 User’s Manual
Abbreviations
The following abbreviations are used in this manual:
AC alternating current
barg pressure unit (=100 kP or 0.987 atm)
ºC degrees Celsius
ºF degrees Fahrenheit
DC direct current
dp dew point
Hz Hertz
kg kilogram(s)
lb pound
Nl/min normal liters per minute
mA milliampere
max maximum
min minute(s)
% percentage
psig pounds per square inch
scfh standard cubic feet per hour
temp temperature
V Volts
W Watts
Ω Ohms
Warnings
The following general warning listed below is applicable to this instrument. It is repeated
in the text in the appropriate locations.
Where this hazard warning symbol appears in the following
sections it is used to indicate areas where potentially hazardous
operations need to be carried out.
Michell Instruments vii
INTRODUCTION
1 INTRODUCTION
Michell Instruments designs and manufactures a broad range of sampling systems for a
wide spectrum of industries and processes from the economical compressed air market
to the oil and gas process market.
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.
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.
1.1 Materials
ES70 User’s Manual
To ensure continuous and reliable dew-point or moisture measurement it is important
that the dew-point transmitter is exposed to stable conditions of the gas to be monitored.
The ES70 systems utilizes high quality materials which ensure that the sample gas
travels smoothly through the system.
Gas wetted parts:
• Stainless steel tube, fi lter housing and fi ttings (316 stainless steel)
• Filter element (oleo-phobic membrane or stainless steel mesh)
• Single- or dual-stage pressure reduction
• Transmitter sample block (316 stainless steel)
• Flowmeter (borosilicate glass) with Viton® seals or high-pressure rated
armored type
1.2 System Designs
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 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.
viii 97506 Issue 1, December 2017
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