48
Air density Standard air density in kg/m3. This value will be consid-
ered for all calculations, if no external temperature probe is
connected. When a temperature probe is connected, the air
density will be calculated automatically.
Pressure unit Select the pressure unit hPa, Pa, mm/H2O, PSI, inwc, bar or
mbar. The preselected unit is hPa.
Pressure measurement Select “fine pressure measurement” (1 reading per second,
the attenuation is adjustable) "normal pressure measurement"
(1 reading per second) and "fast pressure measurement" (4
readings per second).
When measuring the pressure and the flow the user can
select “fine”, so that the resolution will be 0,01 PA (range: ±
100 Pa).
Attenuation If the user increases the attenuation, the signal that repre-
sents the measured value will be more stable. At the same
time the readings display will become slower. The PC 410 will
only consider the attenuation, if “fine pressure measurement”
is selected in the setup-menu. (Setup>attenuation>fine pres-
sure measurement.
Temperature unit Select the temperature unit °C or °F.
Air flow unit Select between l/s, m3/h, m3/s and cfm. The air flow value
will be indicated in the center of the display in the unit that is
selected first (here: l/s) and below, smaller, in the unit that is
selected afterwards (here: m3/h).
Fig. 62: Selecting the airflow unit
K-value Depending on the manufacturer of the measurement equip-
ment, the user can choose between different formula for the
determination of the volume flow (see chapter 6.2.1).
K Value Input Select between "Digits" (the user selects the digits that he
wants to change) and "Fast" (the user changes the k-value by
selecting it and simply pressing the up or down keys)
Exponent Here the exponent of the formula of chapter 6.2 (Air flow (k
value)) is entered. Per default the exponent is 0.50. The expo-
nent can be risen from 0.50 to 1.00. It will only be necessary
to change the exponent, if another exponent is specified in
the data sheet of the air vent.
Brightness Adjust the brightness of the display from 20 % to 90 %.
Printer Here the user can select between printing with the thermal
fast printer TD 600 or another printer.
To Next Page
Loading...