Cosa-xentaur Xentaur XDT Manuel d'utilisateur

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Page 2

Section 2: Sensor and Sampling Techniques32. Sensor and Sampling Techniques2.1 Precautions using the sensorThe Xentaur HTF™ Al2O3 sensor is designed a

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XDT User’s Manual42.2 Sensor Technical SpecificationsType: ...Hyper Thin Film HTF™ high capacitance Al2O3.Dewpoint rang

Page 4 - Warning Labels

Section 2: Sensor and Sampling Techniques52.3.1 In-situ InstallationIn-situ installation is recommended only for measurements where the gas pressure i

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XDT User’s Manual62.3.2 Extractive InstallationFor extractive installations we recommend our sample system ESS, which may be equipped with a variety o

Page 6 - Table of Contents

Section 2: Sensor and Sampling Techniques7inside these materials.• Try to run pipes to the sensor upwards, so that contaminants tend to fall back into

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XDT User’s Manual82.5 Troubleshooting unexpected readingsIf erroneous readings are suspected on a newly acquired instrument, compare the serial number

Page 8 - 1.0 Overview of the XDT

Section 3: Instrument93. Instrument3.1 Precautions using the XDTThe XDT uses state-of-the-art microelectronics to provide a compact full functioning i

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XDT User’s Manual103.2 Instrument Technical SpecificationsEnclosure: ...XDT-OEM bare boardXDT-NEMA tabletop or surface mount, wa

Page 10

Section 3: Instrument113.3 Installation3.3.1 Instrument Mechanical InstallationThe XDT is available in several different physical configurations. Plea

Page 11 - XDT User’s Manual

XDT User’s Manual123.3.2 Electrical ConnectionsAll connections are made via a 21 contact, pluggable screw terminal block referred to as P1. Cable acce

Page 12 - NOT RECOMMENDED

XDT User’s ManualiWhen calling your representative for technical support, please have your serial numbers available.The Sensor and Instrument Serial N

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Section 3: Instrument13fast acting fuse. Please follow the appropriate installation procedures in the paragraphs below according to the electrical pow

Page 14 - 2.4 Mechanical Installation

XDT User’s Manual14dent relays corresponding to the HI and LO alarms. The relay contacts are rated at 10A 250VAC or 30VDC, instruments for use in Divi

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Section 3: Instrument153.3.2.5 Interfacing to the RS-232 optionThe optional RS-232C interface is provided on the P1 connector. The configuration is 96

Page 16 - 3.1 Precautions using the XDT

XDT User’s Manual163.4.2 Display Conventions1. To display characters with the 7 segment numeric display, the following pseudo-alphanumer-ics are used:

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Section 3: Instrument17• With a solid silk screened front face plate, which must be removed to access the circuit board switches described above.• Wit

Page 18 - 3.3 Installation

XDT User’s Manual18the moisture content are °C, °F, PPM, LBS and G/M3; the UP and DOWN buttons scroll back and forth through these units in respective

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Section 3: Instrument19Notes: 1. Instruments are shipped from the factory in the locked mode and must be unlocked before this procedure can take place

Page 20 - Section 3: Instrument

XDT User’s Manual20tings; the ‘SET’ indicator means that changes can be made; the ‘HI’ indicator means that we are changing the HI Alarm, (alarm #1).N

Page 21

Section 3: Instrument21point at or close to the critical measurement point of the process then an extreme accuracy of the process may be maintained ev

Page 22 - 3.4 Operating the Instrument

XDT User’s Manual22displaying the calculations and then will display END for a few seconds, after which the instru-ment will automatically go into mea

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XDT User’s ManualiiXentaur reserves the right to change or modify the product specification and / or appearance at any time without notice. Therefore,

Page 24 - Pushbuttons

Section 3: Instrument23a repetitive timer scheduled basis. The user interface for both is the same, with additional steps for interval setting and aut

Page 25

XDT User’s Manual24in the bottle, for some bottles there is a cut-off pressure below which the dewpoint is not guar-anteed. Make a note of the exact d

Page 26

Section 3: Instrument25indicating that Self Cal Stabilization is being checked and currently the instrument is measur-ing -41.5°C. When the measured d

Page 27

XDT User’s Manual26high end of Analog Output wLock/Unlock the instrument nnSensor Cable Compensation (back to) n.These eleven functions are explaine

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Section 3: Instrument27cal-adjust value in the computation).g. Use the UP or DOWN buttons to modify the cal-adjust value and observe the alternately d

Page 29

XDT User’s Manual28respectively. Pressing the “MODE” button will move the cursor (flashing digit) to the right. Press-ing and holding the “MODE” butto

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Section 3: Instrument29• The alarm set point is programmed on a third alarm, hence the HI and LO alarm relays are free to be used for additional purpo

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XDT User’s Manual30Legend:  denotes a beeping accompaniment to the message./ denotes alternately flashing messages.DISPLAY EXPLANATION REQUIRED A

Page 32

Glossary31Glossary0/24 mA . . . . . . . . . . . . . . . . range of current for the current loop (0mA=minimum reading, 24mA=maximum reading)4/20 mA .

Page 33

XDT User’s Manual32CTS . . . . . . . . . . . . . . . . . . . . Clear To Send - a label for a RS232 interface control linecUL . . . . . . . . . . . . .

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XDT User’s ManualiiiExamine the XDT package for damage or mishandling. If any damage is evident notify the carrier and request an inspection.Unpack th

Page 35

Glossary33posefully programmed into control systems with relays to avoid chatterIGT Research Bulletin 8 . . . . Institute of Gas Technology, has devel

Page 36 - 3.6 Maintenance

XDT User’s Manual34power applied to it (the data can be changed with out limit)regenerative dryer purge . . . . small flow of dry air from drying colu

Page 37

XDT User’s Manual Appendices35Appendix A: Flow Diagram of Operating State User Interface˚C DEWPOINTSETSETHIHI/LOSETHISETLOSETLOSETLOSETHISETSETSETSETS

Page 38 - Glossary

XDT User’s Manual Appendices36Flow Diagram Operating State User Interface (continued) Manual & Scheduled Self Calibration˚C DEWPOINTHI/LOSETSETSET

Page 39

XDT User’s Manual Appendices37Appendix B: Flow Diagram of Set-Up State User InterfaceHi/LoSETSETSETLoLoLoHiSETSETSETSETSETSETSETSETSETSETSETSETSETTest

Page 40

XDT User’s Manual Appendices38Appendix C: Sensor Mechanicalflats for 1 " wrench14/~1.45"14mm x 1.25mm3/4"-16Viton A O-ringfemale BNC

Page 41

XDT User’s Manual Appendices39Appendix D: Optional Sensor Fittingscan be used withConnector weatherproofing kit SEO.S1.M.5060to protect the BNC connec

Page 42 - XDT User’s Manual Appendices

XDT User’s Manual Appendices40Appendix E: XDT Circuit Board DimensionsGNDGND10VA50/60HZ100-250VACJ.F.M.A.M.J.J.A.S.O.N.D2005200420032002J2S4S3S2S1VOLT

Page 43

XDT User’s Manual Appendices41Appendix E (continued): XDT-PM Enclosure Mounting DimensionsStandard mounting (with clip-on compression brackets)Environ

Page 44

XDT User’s Manual Appendices42Appendix E (continued): XDT-NEMA Enclosure Mounting Dimensions

Page 45 - Appendix C: Sensor Mechanical

XDT User’s ManualivWarrantyThis instrument is warranted to be free from defects in workmanship and materials. Liability under this warranty is limited

Page 46

XDT User’s Manual Appendices43Appendix F: Sensor/SpanCheck™ Theory of OperationThe Sensor is constructed as a capacitor whose dielectric consists of p

Page 47

XDT User’s Manual Appendices44Appendix G: Dewpoint Response time AnalysisManufacturers of dewpoint sensors will make unbelievable claims of speed. But

Page 48

XDT User’s Manual Appendices45Of course analyzing on a wet-up step will produce much faster results, because all sensors are fast on wet up, since Al2

Page 49

XDT User’s Manual Appendices46Appendix H: Sample Gas Filter ConsiderationsSample treatment with pre-filtering may be a necessity in many instances. Ho

Page 50 - 2O3 and the

XDT User’s Manual Appendices47Appendix I: XDT Grounding Considerations1. The sensor ground is isolated from the signal and frame grounds, however it i

Page 51

XDT User’s Manual Appendices48Appendix J: Analog Output vs. Dewpoint The current output of the XDT, varies with the measured dewpoint. To use the curr

Page 52

XDT User’s Manual Appendices49-100°C to +20°C settings, because the 4-20mA provides sufficient resolution to measure the out-put better than the speci

Page 53 - Tested Instrument (˚C)

XDT User’s Manual Appendices50Appendix K: RS-232C Interface ProtocolThe instrument uses a simple protocol to communicate to a host computer through it

Page 54 - AC Power

XDT User’s Manual Appendices51The mode argument is optional and may be specified only if an interval was specified. It may be “N” for numeric reportin

Page 55

XDT User’s Manual Appendices52The printer should have at least 80 character columns, and it is best to use continuous form paper.“?” commandRequests a

Page 56 - 10 100 1000 10000

XDT User’s ManualvTable of Contents1.0 Overview of the XDT ...

Page 57

XDT User’s Manual Appendices53Appendix L: Procedure for Exchanging XDT SensorsTo exchange sensors one must know the measured low attenuation of the se

Page 58

XDT User’s Manual Appendices54Appendix M: Uncertainty in LBS & ppmV calculationsUncertainty of LBS & ppmV calculations due to +/-3°C measureme

Page 59

XDT User’s Manual Appendices55Appendix N: Certifications - Approvals - Conformity DECLARATION OF CONFORMITYWe declare under our sole responsibility th

Page 60

XDT User’s Manual Appendices56Appendix N: Certifications - Approvals - Conformity (continued) HAZARDOUS AREASAFE AREAShunt-diodeSafety BarrierSee Not

Page 61

Appendix O: Return Authorization Number Request Form Xentaur Return Authorization Number Request Form • Xentaur must approve and assign a Return Aut

Page 63 - Corporation

59Symbols°C ...18°F ...18AAC power voltag

Page 64

Index60copper tubing ...6copyright ...icorrosive gases ...

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61IndexNFPA compliant A/V alarm ...28NIST ...1NPL ...

Page 66

Index62voltage, mains supply ...10Wwarning labels ... iiiwarranty ...

Page 67

XDT User’s ManualviAppendix C: Sensor Mechanical ...38Append

Page 68

XENTAUR CORPORATION, 84F HORSEBLOCK ROAD, YAPHANK, NY 11980 U.S.A.  TEL (631) 345-3434  FAX (631) 345-534

Page 69

Section 1: Introduction11.0 Overview of the XDTThe XDT is a microprocessor based hygrometer, for measuring moisture content in gases in the range from

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XDT User’s Manual2

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