Vaisala HMP230 Manuel d'utilisateur télécharger pdf (Page 3)

HMP230 SERIES

M210225en-B User's Guide

Contents

1. PRODUCT DESCRIPTION................................................................................................... 1

2. TO BE NOTED WHEN MEASURING HUMIDITY.................................................................. 3

3. INSTALLATION ................................................................................................................... 4

3.1. Selecting the place of installation.......................................................................... 4

3.2. Mounting .................................................................................................................5

3.2.1. Mounting the HMP231................................................................................ 5

3.2.2. Installing the HMP233, HMP234 and HMP235............................................ 5

3.2.3. HMP233 transmitter...................................................................................6

3.2.4. HMP234 transmitter...................................................................................7

3.2.5. HMP235 transmitter................................................................................. 10

3.2.6. HMP237 transmitter................................................................................. 11

3.2.7. HMP238 transmitter................................................................................. 12

3.2.7.1. Mounting; overview.................................................................................. 13

3.2.7.2. Installing the probe through the ball valve assembly................................. 16

3.3. Grounding ............................................................................................................. 20

3.4. Electrical connections .......................................................................................... 22

3.4.1. Connection to a 24 VAC supply................................................................ 23

4. COMMISSIONING.............................................................................................................. 24

4.1. Changing the parameters ..................................................................................... 24

4.2. Security lock jumper............................................................................................. 24

4.3. Selecting the analogue outputs ........................................................................... 25

4.4. Connecting the RS 232C serial bus...................................................................... 27

4.4.1. Reverting to factory settings of the serial port........................................... 29

5. CONNECTION TO PC........................................................................................................ 31

5.1. Giving the communication parameters................................................................ 31

6. COMMANDS...................................................................................................................... 34

6.1. Commands and security lock jumper .................................................................. 34

6.2. LED commands..................................................................................................... 35

6.3. Display/keypad commands................................................................................... 36

6.3.1. Display mode...........................................................................................36

6.3.2. Command mode ......................................................................................36

6.3.3. Entering numbers..................................................................................... 36

6.3.4. Analogue output commands..................................................................... 37

6.3.4.1. Selecting the output (mA/V) .....................................................................37

6.3.4.2. Selecting and scaling the analogue output quantities ............................... 38

6.3.5. Output via the serial bus ..........................................................................39

6.3.5.1. Turning the serial interface echo ON/OFF................................................ 39

6.3.5.2. Serial bus settings.................................................................................... 39

6.3.5.3. Setting the transmitter address ................................................................ 40

6.3.5.4. Selecting the output units......................................................................... 41

6.3.5.5. Selecting the calculation mode................................................................. 41

6.3.6. Output modes .......................................................................................... 41

6.3.6.1. Setting the serial interface operation mode .............................................. 42

6.3.7. Others...................................................................................................... 43

6.3.7.1. Setting the averaging time........................................................................ 43

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Vaisala HMP230 Manuel d'utilisateur Page 3

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