Vaisala DRYCAP DMT345 Podręcznik Użytkownika Strona 133

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Chapter 6 ___________________________________________________Calibration and Adjustment
VAISALA ______________________________________________________________________ 133
Example:
>ctext
Adjust. info : (not set) ? -60ºC
>
Use the command CDATE to input date to the adjustment information
field. Set the adjustment date in format YYYY-MM-DD.
Example:
>cdate
Adjust. date : (not set) ? 2004-05-21
>
Press the adjustment button on the motherboard inside the transmitter to
disable the adjustment function.
Two-Point Relative Humidity Adjustment
Using Display/Keypad
NOTE
Reference humidities must be ~0 %RH and 30 ... 75 %RH. A suitable
product for the two point RH calibration is for example the Vaisala
Humidity Calibrator HMK15.
1. Press the ADJ button (see Figure 2 on page 23) to open the
ADJUSTMENT MENU:
2. Select Adjust T
d
measurement, press button.
3. Select 2-point RH adjustment, press START. At this point, the
device carries out the chemical purge.
4. Remove the filter from the probe and insert the probe in the dry end
reference condition (~0 %RH). Press OK.
0706-018A
Figure 67 Inserting the Sensor in Reference Humidity 1
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