Vaisala HUMICAP HMT330 SERIES Uživatelská příručka Strana 96

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User's Guide ______________________________________________________________________
96 __________________________________________________________________ M210566EN-H
1. Press any of the arrow buttons to open the MAIN MENU.
2. Select Measuring and press the arrow button to confirm your
selection.
3. Select Pressure compensation and press the arrow button to
confirm you selection.
4. Press SET and enter the pressure value in the chosen unit by using
the arrow buttons.
5. Press OK and EXIT to return to the basic display.
Using Serial Line
PRES and XPRES
Command XPRES should be used if the value is changed frequently. Its
value is not retained at reset, and when set to 0; last value set with PRES
is used instead. Use the serial line and do the following:
PRES [aaaa.a]
XPRES [aaaa.a]
where
aaaa.a = Absolute process pressure (hPa)
Example:
>pres
Pressure : 1013.00 hPa ?
>pres 2000
Pressure : 2000.00 hPa
>
Table 26 Multiplication Factors
From To: hPa
mbar 1
Pa N/m2 0.01
mmHg torr 1.333224
inHg 33.86388
mmH
2
O 0.09806650
inH
2
O 2.490889
atm 1013.25
at 980.665
bar 1000
psia
1)
68.94757
1) psia = psi absolute.
Example:
29.9213 inHg = 29.9213 × 33.86388 = 1013.25 hPa
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