User’s Guide ______________________________________________________________________
46 ___________________________________________________________________ M010056EN-I
With the three DIP switches on the right, you can select the output
quantities according to the table printed on the right side of the protective
cover. Note that only the ordered quantities can be selected. The special
option gives you the choice of setting any ordered quantity to each channel.
Display/Keypad Commands
Setting the Pressure for Calculations
In humidity transmitters, ambient pressure is used for the mixing ratio and
wet bulb calculations.
To modify the pressure settings, turn the internal Calibration Enabled/
Disabled DIP switch of the transmitter to position Enabled (up). Press
button C on the display cover: text "SCAL" appears on the display. Then
press button E until the following display appears (the numeric value is
always the existing setting, in this example 1.0):
0505-087
Adjust the pressure reading with buttons Up and Dn. Acknowledge the
value with button E. To complete the pressure setting, turn the dip switch
back to position disabled (down).
See the pressure conversion table on page Table 6 on page 55.
Selecting Output Quantities
Upper Half of Display
To modify the displayed quantity, turn the Calibration Enabled/Disabled
DIP switch of the transmitter to position Enabled (up). Select the required
NOTE
Always restore the DIP switch settings after having tested the analog
outputs or performing the calibration.
NOTE
Chapter 6, Calibration and Adjustment, on page 59 describes separately
display/keypad commands for calibration and adjustment.
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