HD31
- 10 -
V1.6
7.
REC
(record): calculation of minimum, average and maximum values. The following sub-
functions appear:
AUTO
: starts the automatic update, once per second, of the minimum, average and
maximum values.
MANL
(manual): updates the minimum, average and maximum values taking into ac-
count the measurement at the time when the command is selected.
SEL
(select): selects the measurement line indicated by the cursor on the display for the
REC function. If the measurement line is already selected, the selection is cancelled.
If an integral measurement is selected, (with illuminance or irradiance measurements),
REC function is replaced by ITG function.
ITG
(integral): calculation of the integral. The following sub-functions appear:
RUN
: starts the calculation of the integral.
SEL
(select): selects the measurement line indicated by the cursor on the display for the
ITG function. If the measurement line is already selected, the selection is cancelled.
8.
VIEW
: views the minimum, average and maximum values (calculated with the REC func-
tion) of the selected quantity. The following sub-functions appear:
MIN
: displays the quantity minimum value in the display line indicated by the cursor.
Press the function key again to return to the current measurement value.
AVRG
(average): displays the quantity average value in the display line indicated by
the cursor. Press the function key again to return to the current measurement value.
MAX
: displays the quantity maximum value in the display line indicated by the cursor.
Press the function key again to return to the current measurement value.
If an integral measurement is selected (with illuminance or irradiance measurements), the
VIEW function is replaced by the V/T function.
V/T
(Value/Time): setting integration limits. The following sub-functions appear:
VAL
(value): sets the threshold for the stoping of the integral calculation.
TIME
: sets the integration time limit.
CLR
(clear): sets to zero the integration time and threshold limit.
9.
DEL
: deletes minimum, average and maximum values (or the integral calculation, with ITG
function). The following sub-functions appear:
CANC
(cancel): disables the REC function (or ITG) and deletes the minimum, average
and maximum values (or the integral calculation, in the case of ITG function).
CLR
(clear): resets the minimum, average and maximum value calculation (or the in-
tegral calculation, in the case of ITG function).
10.
: sends the three measurements displayed when the key is pressed to the printer
connected with the RS232C output. Also the information about the connected probes (type
of probe, serial number, type of calibration used) are printed.
11.
PLOT
: displays the real-time graphics of the measurement indicated by the cursor on the
display. The following sub-functions appear:
X
: displays the vertical cursors.
Δ
X
: sets the scale of abscissae.
Y
: displays the horizontal cursors and the zoom functions of the axis of ordinates.
12.
HOTW
(hot-wire): supplies or removes power to the hot-wire air speed probe.
13.
ZERO
: corrects the offset of the probes provided with this function.
14.
PEAK
: resets the peak value of the pressure probes.
Note
: some functions may appear disabled (grayed out) according to the selected quantity and
the instrument state.
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