Pres setting ambient pressure for calculations, Table 7, Pressure conversion chart – Vaisala HMT360N User Manual

Page 60

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User's Guide ______________________________________________________________________

58 __________________________________________________________________ M210744EN-C

PRES Setting Ambient Pressure for Calculations

Syntax: PRES aaaa.a<cr>

Turn the internal DIP switch Calibration Enabled/Disabled to
position ON before setting the pressure and return it to position OFF
after making the setting.

Example:

>pres 12<cr>

Pressure : 12.0 bara

>

Example:

29.9213 inHg = 29.9213 × 33.86388 = 1013.25 hPa / mbar

where

aaaa.a =

Pressure (bar

a

)

Table 7

Pressure Conversion Chart

FROM

hPa/mbar

mmHg/Torr

inHg

atm

bar

psi

hPa/
mbar

1

1.333224

33.86388

1013.25

1000

68.94757

TO mmHg/

Torr

0.7500617

1

25.40000

760

750.0617

51.71493

inHg

0.02952999

0.03937008

1

29.921

29.52999

2.036021

atm

0.00098692

0.00131597

0.033422

1

0.98692

0.068046

bar

0.001

0.001333224 0.03386388

1.01325

1

0.06894757

psi

0.01450377

0.01933678

0.4911541

14.6962

14.50377

1

NOTE

Conversions from mmHg and inHg are defined at 0 °C.

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