HD2114P/HD2134P
- 10 -
V2.3
°C/°F - ESC key
The measured temperature value is used to compensate the wind speed measurement. When the
temperature probe is connected, the key changes the unit of measurement from degrees Celsius to
Fahrenheit.
If the probe is not present, the compensation temperature must be entered manually: to manually
change the value shown in the display lower line, press °C/°F once. The temperature indicated starts
blinking. While the display is blinking, it is possible to change the compensation temperature in the
-200…+600°C range using the arrows (
and
). Confirm using ENTER. The display stops
blinking, and that temperature is used for compensation.
If the temperature probe is not present, to change the unit of measurement between °C and °F, it is
necessary to press
twice
the °C/°F key.
REL/
key
In measurement mode, it displays the difference between the current value and that measured on
pressing the key for both measurements - main and secondary. The
REL
message appears on the
display; press the key again to return to the current measurement. The REL function is not applied
to manual temperature: if the thermocouple probe is not present, on pressing REL the error
indication ERR appears.
When used in the menu, it decreases the current variable value.
MENU Key
The first menu item is accessed by initially pressing on the MENU key; press ENTER to go to the
following items. To modify the item displayed, use the arrow keys (
and
). The current value is
confirmed by pressing the ENTER key and the display moves on to the next parameter. If pressing
ESC the setting is cancelled.
To exit the menu, press the MENU key at any time.
The menu items are listed in this order:
1)
Differential pressure resetting
: the most sensitive pressure sensors are affected by an error
linked to their position. By rotating the instrument from the horizontal to the vertical
position there is a variation in the measurement of a few Pascals. This is the reason the reset
command was designed for the differential value: leave the inputs of each probe open so that
they detect the same pressure and place the instrument in the position that will be used to
perform the measurement. When entering the menu, the "PRES_REL_TO_ZERO
ENTR_TO_MENU" message appears: press REL to reset the difference or press ENTER to
access other menu items. To guarantee the accuracy of maximum results, do not modify the
instrument's position compared to that used during the resetting.
2)
Pressure probe bottom scale:
the pressure sensor bottom scale is presented.
3)
SECT m
2
- SECT inch
2
: this parameter defines a duct's
section area
for flow rate
calculation. It is expressed in m
2
or inch
2
. To change the unit of measurement, press UNIT.
