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Easidew Portable HP User’s Manual

Michell Instruments

13

MAINTENANCE

•

Replace the locking screw and cable gland.

5.3

Filter Cartridge Replacement

Unscrew the gas inlet

fi

tting to reveal the

fi

lter, which can then simply be removed for

checking or replacement.

5.4

Checking the Easidew Portable Electronics Calibration

h

h

Supply

4-20 mA

PIN 3

PIN 1

(GND)

Screen/Shield

Optional

Figure 3

2-Wire Connection - View Showing Rear of Connector Terminal Block

To verify the display electronics are within calibration, a 4-20mA current source can be

connected in place of the sensor.

At 4 mA the display should show -100.0°Cdp ±0.5°C (-148°Fdp ±0.9°F)

At 20 mA the display should show +20.0°Cdp ±0.5°C ( +68°Fdp ±0.9°F)

If the displayed values are outside of this range, please contact Michell Instruments'

Service Department.

5.5

List of Spares

P/N

Description

SSF-PF-10PK

Pack of 10 particulate

fi

lter cartridges

EAP-BAT

Replacement battery pack

EAP-CHR

Replacement battery charger

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Содержание Easidew Portable HP

Страница 1: ...Easidew Portable High Pressure Version User s Manual 97120 Issue 2 2 March 2016...

Страница 2: ...s information when contacting Michell Instruments for service purposes Analyzer Code Serial Number Invoice Date Location of Instrument Tag No Analyzer Code Serial Number Invoice Date Location of Instr...

Страница 3: ...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 Easide...

Страница 4: ...nts Safety v Electrical Safety v Pressure Safety v Toxic Materials v Repair and Maintenance v Calibration v Safety Conformity v Abbreviations vi Warnings vi Appendices Appendix A Technical Specificati...

Страница 5: ...ot allow the battery to fully discharge Pressure Safety DO NOT permit pressures greater than the safe working pressure to be applied to the instrument The specified safe working pressure is 300 barg 4...

Страница 6: ...ram lb pound mA milliampere m meter mm millimeter MPa megapascal Nl min normal liters per minute psig pound s per square inch gauge scfh standard cubic feet per hour m micrometer ohm V Volts Warnings...

Страница 7: ...f measurement time from a full charge The instrument is delivered complete with a universal battery charger stored in the lid It takes 16 hours to fully charge the battery pack during which time the i...

Страница 8: ...letely sealed If the instrument is taken through altitude changes a pressure differential will occur within the case If this occurs Before opening the lid open the black pressure relief valve by one t...

Страница 9: ...d 4 Insert the tube adapter until it rests firmly on the shoulder of the Swagelok tube fitting body Finger tighten the nut 5 Mark the nut at the 6 o clock position While holding the fitting body stead...

Страница 10: ...as supply line to the instrument Gas In port 5 Connect the sample gas vent line to the instrument Gas Out port 6 Switch the instrument on The display will begin to change as the sensor responds to the...

Страница 11: ...t Dew Point T100 Response Time mins C F 30 22 15 40 40 30 50 58 60 60 76 180 The Easidew sensor fitted to the Easidew Portable is designed and calibrated to measure dew points as low as 100 C 148 F Ho...

Страница 12: ...the instrument it can be accessed by removing two screws 5 The battery pack can be recharged using the supplied charger via the battery charging socket and should be recharged whenever the battery le...

Страница 13: ...ter vapor as the water molecule is extremely small compared to the structure of solids even when compared to the crystalline structure of metals The graph to the right shows the dew point inside tubin...

Страница 14: ...point should always be as close to the critical measurement point as possible in order to obtain a truly representative measurement The length of the sample line to the sensor or instrument should be...

Страница 15: ...id droplets and can even stop flow to the analyzer completely when a large slug of liquid is encountered Condensation and Leaks Dewpoint T Dewpoint T Maintaining the temperature of the sample system t...

Страница 16: ...this problem Slow the response of the sensor to changes in moisture content An excessively high flow rate can Introduce back pressure causing slower response times and unpredictable effects on equipme...

Страница 17: ...nt To remove the sensor or battery pack 1 Ensure instrument is switched off and that the battery charger current output and any sampling components are also disconnected 2 Remove and retain the 10 cro...

Страница 18: ...below Completely unscrew the cable gland on the GDSN connector to release the cable tension Remove the locking screw from the back of the connector retaining the metal O ring Remove the connector bloc...

Страница 19: ...ure 3 2 Wire Connection View Showing Rear of Connector Terminal Block To verify the display electronics are within calibration a 4 20mA current source can be connected in place of the sensor At 4 mA t...

Страница 20: ...4 20mA source Exchange sensor Display shows ErrH Sensor reading over range Sensor current signal 20mA Sensor tile short circuit Sensor may have been exposed to saturation conditions or liquid contami...

Страница 21: ...Easidew Portable HP User s Manual Michell Instruments 15 APPENDIX A Appendix A Technical Specifications...

Страница 22: ...age Temperature 40 to 75 C 40 to 167 F Operating Pressure Up to 30 MPa 300 barg 4350 psig Mechanical Specifications Display Flush mounted 3 5 digit red LED Case Yellow propylene with charger and outpu...

Страница 23: ...Easidew Portable HP User s Manual Michell Instruments 17 APPENDIX B Appendix B EC Declaration of Conformity...

Страница 24: ...Easidew Portable HP User s Manual 18 97120 Issue 2 2 March 2016 APPENDIX B Appendix B EU Declaration of Conformity...

Страница 25: ...Easidew Portable HP User s Manual Michell Instruments 19 APPENDIX C Appendix C Quality Recycling Warranty Information...

Страница 26: ...Directive and the Restriction of Hazardous Substances RoHS Directive place rules upon European manufacturers of electrical and electronic equipment The directives aim is to reduce the impact that ele...

Страница 27: ...full description of the fault and the customer contact information 3 Upon receipt Michell Instruments will evaluate the product to determine the cause of the malfunction Then one of the following cour...

Страница 28: ...Easidew Portable HP User s Manual 22 97120 Issue 2 2 March 2016 APPENDIX D Appendix D Decontamination Declaration...

Страница 29: ...ls YES NO Radioactive substances YES NO Other hazards YES NO Please provide details of any hazardous materials used with this equipment as indicated above use continuation sheet if necessary Your meth...

Страница 30: ...Easidew Portable HP User s Manual 24 97120 Issue 2 2 March 2016 NOTES...

Страница 31: ...Easidew Portable HP User s Manual Michell Instruments 25 NOTES...

Страница 32: ...http www michell com...

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