7
5.3
Pressure Zero Calibration
If the current pressure measurement value is within the range of
(-10% ~ 10%), long press
“ESC”
to reset the measured value.
5.4
Switching pressure unit
Press
“ ↓ ”
to switch the pressure unit in the following order:
kPa
、
psi
、
inHg
、
inH2O
、
mmHg
、
mmH2O
、
MPa
、
bar
、
mbar
、
atm
、
kg/cm2
、
Pa. You can also long press "ENTER" to enter "menu \ routine
measurement \ pressure unit selection" and select the corresponding unit
directly. The pressure unit will be automatically saved when you turn off
the instrument, and the unit displayed next time will be the unit set in
the last shutdown.
Note: if the length of the full range of currently selected unit
exceeds the number of display bits on the screen, data such as 99999
may appear.
Conversion between units is shown in the following table:
1
kPa
1
7
MPa
0.001
2
psi
0.1450377
8
bar
0.01
3
inHg
0.2953
9
mbar
10
4
inH
2
O
4.01463
10
atm
0.0098692
5
mmHg
7.50061
11
kg/cm
2
0.010197
6
mmH
2
O
102.047
12
Pa
1000
Содержание ET-AY30
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