Vaisala HMT360N - Manual (Page 51)

Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 49
See the pressure conversion table below:
Example:
200 psi = 200 × 68.95 = 13790 hPa (mbar)
Selecting Output Quantities
Two quantities are shown on the LCD. The upper half of the display
shows the moisture, whereas the lower half is reserved for the
temperature reading.
Upper Half of Display
To select between metric/non metric output quantities, use the output
quantities metric/nonmetric. DIP switch is in the metric (down)
position, the available quantities are dewpoint temperature (T
d
°C),
volume concentration (ppm), and water content in mg/m
3
(w).
When the DIP switch is in the non metric (up) position, the available
quantities are dew/frost point temperature (T
d
°F), volume
concentration (ppm
v
), and water content in lb/mmscf (w).
To modify the displayed quantity, turn the Calibration Enabled/
Disabled DIP switch of the transmitter to position Enabled (up). Select
the required quantity with button Up on the display cover, and
acknowledge the value with button E. To complete the selections, turn
the DIP switch back to position disabled (down).
Table 5 Pressure Conversion Chart
FROM hPa (mbar) psi bar MPa
hPa (mbar) 1 68.95 1000 10000
TO psi 0.0145 1 14.5 145
bar 0.001 0.06895 1 10
MPa 0.0001 0.006895 0.1 1
Character Quantity Abbreviation Metric Unit Nonmetric Unit
1 temperature T °C °F
2 dewpoint
temperature Td °C °F
6 volume
concentration ppmv ppm
v
ppm
v