________________________________________________________________________________
VAISALA ________________________________________________________________________ 7
CHAPTER 6
CALIBRATION AND ADJUSTMENT.........................................................137
Opening and Closing the Adjustment Mode .....................137
Relative Humidity Adjustment ............................................139
Using Push-Buttons ..........................................................139
Using Display/Keypad.......................................................140
Using Serial Line...............................................................141
CRH .............................................................................141
Relative Humidity Adjustment after Sensor Change........ 142
Using Display/Keypad.......................................................142
Using Serial Line...............................................................142
FCRH ...........................................................................142
Temperature Adjustment.....................................................143
Using Display/Keypad.......................................................143
Using Serial Line...............................................................143
Analog Output Adjustment..................................................145
Using Display/Keypad.......................................................145
Using Serial Line...............................................................145
ACAL............................................................................145
Feeding Adjustment Information........................................146
Using Display/Keypad.......................................................146
Using Serial Line...............................................................146
CTEXT .........................................................................146
CDATE.........................................................................146
CHAPTER 7
TECHNICAL DATA .................................................................................... 147
Specifications.......................................................................147
Performance...................................................................... 147
Relative Humidity ......................................................... 147
Temperature (+ Operating Pressure Ranges) .............148
Optional Temperature Probe .......................................148
Calculated Variables ....................................................149
Accuracies of Calculated Variables ..................................149
Accuracy of Dewpoint Temperature °C .......................149
Accuracy of Mixing Ratio g/kg (Ambient Pressure
1013 mbar)...................................................................149
Accuracy of Wet Bulb Temperature °C........................ 150
Accuracy of Absolute Humidity g/m³............................150
Dewpoint Temperature (HMT337 Warmed Probe Option)151
Operating Environment ..................................................... 151
Inputs and Outputs............................................................152
Mechanics ......................................................................... 152
Transmitter Weight.......................................................153
Technical Specifications of Optional Modules .................. 153
Power Supply Module.................................................. 153
Analog Output Module ................................................. 153
Relay Module ............................................................... 154
RS-485 Module ............................................................ 154
LAN Interface Module .................................................. 154
WLAN Interface Module...............................................154
Data Logger Module ....................................................155
Options and Accessories.................................................... 155
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