Irradian Limited
L203 Photometer
10
(continued):
MIN & MAX LEVELS
During an average measurement sequence the maximum and minimum
values attained in the period are recorded. Press
HOLD
to halt the
averaging sequence. Press the MODE button to select between
Average,
Min
and
Max
. Note the Integrate display may overload and show - 0 L -.
It is also possible to view a
MIN
or MAX recording sequence by selecting
MIN or MAX
prior to selecting
RUN
.
Press
FUNCTION RESET
to set the maximum and average values to
zero and the minimum to - 0 L -. Note the
FUNCTION RESET
will
operate during a measurement sequence or in the
HOLD
mode.
INTEGRATE
For measurements of the integrated dosage or exposure press the
MODE switch to select
Integrate
. Press the RUN switch to start the
measurement. The display will now autorange as the dosage increases.
Note the detector amplifier will not autorange and as with Average
measurements if the amplifier overloads the display will show - 0 L - and
the measurement will halt.
Units for integrated measurements are lux seconds (lux.s) footcandle
seconds (fc.s), cd.m
-2
.s and footLambert seconds (fL.s).
At the end of the integration period
HOLD
the display. Use the
MODE
switch to also display the
Min
,
Max
and
Average
values.
Press
FUNCTION RESET
to set the integrate, maximum and average
values to zero and the minimum to - 0 L -. Note the
FUNCTION RESET
will operate during a measurement sequence or in the
HOLD
mode.