Vaisala HMP260 SERIES Servisní příručka stáhnout pdf (Strana 4)

HMP260 SERIES

Operating Manual HMP260-U017en-1.5

ii 1997-11-25

5.4. Serial commands .........................................................................................32

5.4.1. Analogue output commands............................................................ 32

5.4.1.1. Setting the analogue outputs....................................................... 32

5.4.1.2. Selecting and scaling the analogue output quantities .................. 33

5.4.1.3. Scaling the analogue outputs ...................................................... 33

5.4.2. Output via the serial bus ................................................................. 34

5.4.2.1. Starting the measurement output ................................................34

5.4.2.2. Stopping the measurement output............................................... 34

5.4.2.3. Outputting the reading once ........................................................ 34

5.4.2.4. Setting the output interval for the RUN mode .............................. 35

5.4.2.5. Serial bus settings....................................................................... 35

5.4.2.6. Selecting the output units............................................................ 36

5.4.2.7. Setting the transmitter address ...................................................36

5.4.2.8. Resetting the transmitter.............................................................36

5.4.4. Operating the transmitter via the serial bus.....................................36

5.4.4.1. Setting the serial interface........................................................... 36

5.4.4.2. OPEN & CLOSE .........................................................................37

6. CALIBRATION..........................................................................................................38

6.1. Humidity calibration ....................................................................................38

6.1.1. One point humidity calibration......................................................... 39

6.1.1.1 Using serial commands............................................................... 39

6.1.1.2 Using display/keypad commands ................................................ 39

6.1.1.3 Using LED commands.................................................................40

6.1.2. Two point humidity calibration......................................................... 40

6.1.2.1 Using serial commands............................................................... 40

6.1.2.2 Using display/keypad commands ................................................ 41

6.1.2.3 Using LED commands.................................................................41

6.1.3. Calibration procedure after sensor change...................................... 42

6.1.3.1 Using serial commands............................................................... 42

6.1.3.2 Using display/keypad commands ................................................ 43

6.1.3.3 Using LED commands.................................................................43

6.1.4. Humidity calibration table................................................................44

6.2. Temperature calibration .............................................................................. 44

6.2.1 One point offset correction.............................................................. 45

6.2.2.1 Using serial commands............................................................... 45

6.2.2.2 Using display/keypad commands ................................................ 45

6.2.2.3 Using LED commands.................................................................46

6.2.2 Two point temperature calibration ................................................... 46

6.2.2.1 Using serial commands............................................................... 46

6.2.2.2 Using display/keypad commands ................................................ 47

6.2.2.3 Using LED commands.................................................................47

6.3. Calibration of analogue outputs ................................................................. 48

6.3.1 Using serial commands................................................................... 48

6.3.2 Using display/keypad commands .................................................... 48

6.3.3 Using LED commands .................................................................... 50

7. MAINTENANCE ........................................................................................................ 50

7.1. Reference measurements............................................................................50

7.2. Self-diagnostics...........................................................................................50

7.3. Changing the HUMICAP® sensor and the filter..........................................51

7.4. Measurement of output currents using test points.................................... 51

7.5. Adjusting the contrast of the display..........................................................52

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