HMD70U/Y Transmitters
U303en-1.1 Operating Manual
1997-07-31 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
3.3 Grounding................................................................................................................4
3.4 Electrical connections and installation of the current module.............................5
3.4.1 Connection to an AC supply ......................................................................6
3.5 Electronics...............................................................................................................7
4. CALIBRATION .....................................................................................................................8
4.1 One-point humidity calibration...............................................................................8
4.2 Two-point humidity calibration...............................................................................8
4.2.1 Two-point humidity calibration procedure...................................................8
4.3 Calibration table ......................................................................................................9
5. MAINTENANCE....................................................................................................................9
5.1 Replacing the HUMICAP
180 sensor and the filter ..............................................9
6. TECHNICAL DATA.............................................................................................................10
6.1 Relative humidity...................................................................................................10
6.2 Temperature (Y model only) .................................................................................10
6.3 General...................................................................................................................11
6.4 Electromagnetic compatibility..............................................................................12
6.4.1 Emissions................................................................................................12
6.4.2 Immunity .................................................................................................12
GUARANTEE .....................................................................................................................12
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