Making measurements
Making measurements
1
Attach the desired sensor.
2
Power on the meter.
Press and hold the
ON
key for 2 seconds, and then
release. You will be in measurement mode.
3
Press
CAL
to enter configuration mode.
4
Press
UNITS
until the label on the display matches
the sensor type.
l
For
Quantum Sensors
, select
µmol
(actual units are
µmol s
-1
m
-2
)
l
For a
Pyranometer
, select
W m
-2
(actual units are
Watts m
-2
)
l
For a
Photometric Sensor
, select
Lux or Klux
(actual
units are Lux or Kilolux)
Readings will be incorrect if the selected units do not
match the sensor that is connected to the meter.
5
Press the up or down (
▲
,
▼
) key to change the
displayed multiplier until it matches the multiplier
for your sensor.
Press and hold the arrow key to scroll rapidly. The mul-
tiplier is on the calibration sheet under
For use with
LI-COR handheld meters and loggers
.
6
Press
CAL
again to store the displayed multiplier.
The LI-250A is ready for measurements.
2
