FUNC/ENTER key
During normal measurement this enables the display and logging of the maximum (MAX),
minimum (MIN) and average (AVG) value of the measurements captured by the probe connected to
the instrument, updating them with the acquisition of new samples. The acquisition frequency is
once a second.
The MAX, MIN and AVG measurements remain in the memory until the instrument is on, even
after exiting the calculation function. To reset the previous values and restart with a new
measurement session, press FUNC until the message “FUNC CLR” appears, then use the arrows to
select YES and confirm using ENTER.
In the menu, the ENTER key confirms the current parameter and then goes to the next one.
Pressed together with the UNIT-Q/T key, enables the integral Q(t) calculation function.
Pressed together with the MENU-Clear Q/T, resets the previous integral Q(t) calculation (please see
the description of the UNIT key).
Attention: the data captured using the Record function cannot be transferred to the PC
.
HOLD key/
It increases the current parameter when used in the menu; when used in measurement mode, it
freezes the measurement in progress, and upon application of pressure on the key, the message
HOLD
appears in the upper side of the display. To return to the current measurement, press the
key again.
Upon turning on the instrument, the
AutoPowerOff
function can be disabled by holding the HOLD
key down (please see the ON-OFF key description).
During calculation of the integral Q(t), by pressing the key the displayed value is frozen
without
suspending the calculation in progress
.
UNIT/Q(t) key
During measurement and integral Q(t) calculation, allows selection of the unit of measurement.
Repeatedly pressing this key displays the available units of measurement according to the type of
connected probe, as reported in the following table.
Type of measurement
Unit of
Measurement
Integral Q Unit
of Measurement
Illuminance (Phot)
lux - fcd
lux
⋅
s - fcd
⋅
s
Irradiance (RAD - UVA - UVB - UVC)
W/m
2
-
μ
W/cm
2
J/m
2
-
μ
J/cm
2
PAR
μ
mol/(m
2
⋅
s)
μ
mol/m
2
Luminance (LUM 2)
cd/m
2
----
Note:
for the LP471 LUM 2 luminance probe, the integral calculation is not provided
.
- -
8
Содержание HD2102.1
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