OPERATING MANUAL_______________________________________________________________
II_______________________________________________________________________ U263EN-1.4
S
ERIAL COMMANDS........................................................................................................................................... 46
Auto-calibration........................................................................................................................................... 46
Pressure compensation ................................................................................................................................ 48
Analogue outputs......................................................................................................................................... 49
Setting the analogue outputs .....................................................................................................................................49
Selecting and scaling the analogue output quantities ................................................................................................49
Scaling the analogue outputs.....................................................................................................................................50
Output via the serial bus .............................................................................................................................. 50
Starting the measurement output...............................................................................................................................50
Stopping the measurement output.............................................................................................................................51
Outputting the reading once ......................................................................................................................................51
Setting the output interval for the RUN mode...........................................................................................................51
Serial bus settings......................................................................................................................................................52
Selecting the output units..........................................................................................................................................52
Setting the transmitter address ..................................................................................................................................52
Resetting the transmitter............................................................................................................................................53
Operating the transmitter via the serial bus ................................................................................................. 53
Setting the serial interface.........................................................................................................................................53
OPEN & CLOSE ......................................................................................................................................................53
CHAPTER 6 CALIBRATION .......................................................................................................................... 55
H
UMIDITY CALIBRATION................................................................................................................................... 55
Two-point calibration procedure ................................................................................................................. 56
Using serial commands .............................................................................................................................................56
Using display/keypad commands..............................................................................................................................57
Using LED commands..............................................................................................................................................57
Humidity calibration table........................................................................................................................... 59
T
EMPERATURE CALIBRATION............................................................................................................................ 59
One point offset correction.......................................................................................................................... 59
Using serial commands .............................................................................................................................................59
Using display/keypad commands..............................................................................................................................60
Using LED commands..............................................................................................................................................60
Two-point temperature calibration .............................................................................................................. 61
Using serial commands .............................................................................................................................................61
Using display/keypad commands..............................................................................................................................62
Using LED commands..............................................................................................................................................62
CALIBRATION OF THE ANALOGUE OUTPUTS ...................................................................................................... 63
Using serial commands................................................................................................................................ 63
Using display/keypad commands ................................................................................................................ 63
Using LED commands................................................................................................................................. 64
CHAPTER 7 MAINTENANCE ........................................................................................................................ 67
R
EFERENCE MEASUREMENTS ............................................................................................................................ 67
S
ELF-DIAGNOSTICS ........................................................................................................................................... 67
T
EMPERATURE CHANNEL ADJUSTMENT WITH PT 100 SIMULATORS .................................................................. 68
Adjustment using serial commands............................................................................................................. 69
Adjustment using display commands .......................................................................................................... 69
Adjustment using LED commands.............................................................................................................. 69
M
EASUREMENT OF OUTPUT CURRENTS USING TEST POINTS............................................................................... 70
A
DJUSTING THE CONTRAST OF THE DISPLAY ..................................................................................................... 71
CHAPTER 8 TECHNICAL DATA .................................................................................................................. 73
M
EASURED VARIABLES..................................................................................................................................... 73
Dewpoint temperature ................................................................................................................................. 73
Temperature................................................................................................................................................. 74
Relative humidity ........................................................................................................................................ 74
Ppm volume concentration (dry) ................................................................................................................. 74
O
UTPUTS........................................................................................................................................................... 74
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