CHAPTER 6______________________________________________ CALIBRATION AND ADJUSTMENT
VAISALA _________________________________________________________________________ 57
RH : 11.5 Ref1 ? 11.3 <cr>
Press any key when ready...
• Place the sensor head in the calibration hole of the NaCl bottle
(wet end reference) in the humidity calibrator.
• Wait for 30 minutes.
• Press any key and enter the second point value and press <cr>.
RH : xx.x Ref2 ? yy.y <cr>
• The stabilization of the sensor can be monitored here as well by
entering c <cr> instead of the reference value.
Using display/keypad commands
• Leave the calibrator and the transmitter for at least 4 hours in the
same space so that their temperatures have time to equalize.
Remove the filter cap on the transmitter.
Disconnect the security lock jumper
before turning the transmitter on!
• Place the sensor head in the calibration hole of the LiCl bottle (dry
end reference) in the humidity calibrator.
• Select Cali in the main menu and then RH; select Not changed
and then two-point calibration RH 2 point cal. Change the first
point reading with the arrow keys to correspond the reference
humidity and press ENT; pressing an arrow once changes the
reading by 0.05 %RH.
• Place the sensor head in the calibration hole of the NaCl bottle
(wet end reference) in the humidity calibrator.
• Wait for 30 minutes.
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