Vaisala HUMICAP HMP140A Guía de usuario Pagina 3

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HMP140A SERIES
U175en-1.5 Operating Manual
1999-12-08 i
Contents
1. PRODUCT DESCRIPTION ...................................................................................................1
2. TO BE NOTED WHEN MEASURING HUMIDITY..................................................................2
3. INSTALLATION....................................................................................................................3
3.1 Selecting the place of installation ..........................................................................3
3.2 Mounting..................................................................................................................3
3.2.1 Mounting the HMP141A.............................................................................4
3.2.2 Mounting the HMP142A.............................................................................4
3.2.3 Mounting the HMP143A.............................................................................5
3.3 Electrical connections.............................................................................................6
3.4 Connectors and potentiometers on the main PCB ................................................7
3.5 Selecting the outputs..............................................................................................7
3.6 Connection to an AC supply ..................................................................................8
4. CALIBRATION .....................................................................................................................9
4.1 One-point humidity calibration...............................................................................9
4.2 Two-point humidity calibration...............................................................................9
4.2.1 Two-point humidity calibration procedure...................................................9
4.3 Temperature calibration........................................................................................10
4.4 Calibration table ....................................................................................................11
5. MAINTENANCE.................................................................................................................. 11
5.1 Replacing the HUMICAP
180 sensor and the filter ............................................11
6. TECHNICAL DATA.............................................................................................................12
6.1 Relative humidity...................................................................................................12
6.2 Temperature...........................................................................................................12
6.3 General...................................................................................................................13
6.4 Electromagnetic compatibility..............................................................................14
6.4.1 Emissions................................................................................................14
6.4.2 Interference.............................................................................................14
7. SPARE PARTS AND ACCESSORIES ................................................................................14
APPENDIX 1: CURRENT OUTPUT MODULE
APPENDIX 2: SETTINGS OF THE LOCAL DISPLAY
APPENDIX 3: HMP143A PROBE CABLE EXTENSION
TECHNICAL DATA
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