Epson XDT manual Instrument reading in ppmV

Page 58

XDT User’s Manual Appendices

-100°C to +20°C settings, because the 4-20mA provides sufficient resolution to measure the out- put better than the specified accuracy of the sensor.

Relationship of 4-20mA output and instrument reading in ppmV or LBS

Instrument reading in ppmV

20mA

10

100

1000

10000

49.3 LBS =

12mA

0.56 LBS =

289.1 LBS

.5

˚

C

-20˚C

= 0˚C

8mA

-60˚C

=

-38

range

AO

= 1019.3 ppmV

˚C

=

+20

.=1066ppmV

High

.197LBS =

range

.=86063ppmV

5mA

AO

4/20mAoutput

˚

C

High

.5

-

50˚

4.5mA

-

65

˚C

=

C = 38

range

-100

range

=

AO

Low

.83

AO

ppmV

Low

4.1mA

0.1

1

10

100

1000

Instrument reading in LBS of H2O / million cubic feet

51

Image 58

Contents Yyyyyyy y Sensor Serial No Instrument Serial No XDT User’s Manual Iii XDT User’s Manual Table of Contents Index Overview of the XDT XDT User’s Manual Sensor and Sampling Techniques Precautions using the sensor Sensor Technical Specifications Sensor Installation & Sampling TechniquesIn-situ Installation Not RecommendedExtractive Installation Mechanical Installation Troubleshooting unexpected readings SATInstrument Precautions using the XDT Electromagnetic Compatibility ConsiderationsInstrument Technical Specifications IsolationXDT-PM DIN43700 Enclosure Installation InstallationInstrument Mechanical Installation XDT-NEMA IP65 Enclosure InstallationConnecting Power Electrical ConnectionsWiring the Alarm Contacts AC Mains Electrical Power ConnectionLow Voltage DC Powered Option Electrical Power Connection Sensor ConnectionInterfacing to the Analog Output Interfacing to the RS-232 option Operating the InstrumentStarting up 12 3 4 5 6 7 8 Display ConventionsPush Buttons Viewing Dewpoint Mode Operating StateXDT User’s Manual Alarms HI **** ˚C Start CalibrationSpanCheck Mode Single Point Self Calibration, manual or scheduled Instrument XDT User’s Manual Viewing Serial Number Mode SetUp StateXDT User’s Manual Secured Password Protection Resetable Audio-Visual Alarm Option Nfpa compliant Troubleshooting the Instrument Display Explanation Required Action Maintenance XDT User’s Manual Glossary DB9 Glossary XDT User’s Manual Appendix a Flow Diagram of Operating State User Interface Sign on message Calibration without key pressHere Appendix B Flow Diagram of Set-Up State User Interface 16.24˚C˚FAppendix Sensor MechanicalAppendix D Optional Sensor Fittings Appendix E XDT Circuit Board Dimensions Side ViewAppendix E XDT-PM Enclosure Mounting Dimensions Appendix E XDT-NEMA Enclosure Mounting Dimensions Appendix F Sensor/SpanCheck Theory of Operation Appendix G Dewpoint Response time Analysis XDT User’s Manual Appendices Appendix H Sample Gas Filter Considerations Tested Instrument ˚CAppendix I XDT Grounding Considerations SensorAppendix J Analog Output vs. Dewpoint Instrument reading in ppmV Receive Help Data Who Reset Login Data command Help commandAppendix K RS-232C Interface Protocol Error SensOpen or Error SensShort or Error SensSat K n mWho Command ? commandSerial Number Command Login CommandAppendix L Procedure for Exchanging XDT Sensors State User InterfaceAppendix M Uncertainty in LBS & ppmV calculations Xentaur Return Authorization Number Request Form To obtain a RAN fill out this form and fax to 631Page Index Enclosure dimensions Pounds of H2O per million standard cubic Voltage, mains supply Iii Warranty