Normal Reading Mode - Spectrum Technologies Field Scout CM1000 Operation Manual

Normal Reading Mode

Taking Readings
When the meter is on, pressing the trigger on the front of
the handle will activate the targeting lasers and will cause
the measuring and calculating mechanism to become
"Live". That is, while pulling the trigger, the user can see
the INDEX (see below) being constantly updated as the
targeting lasers are moved around the leaf surface.
Releasing the trigger locks in the INDEX reading and
incorporates that reading into the running average and the
logger's memory.
NOTE: Readings should be taken only on individual
leaves. Canopy-level measurements are encouraged by
Spectrum Technologies only for fine-textured turf grass.
(See Light Management, p. 18)
When in normal reading mode, the LCD of the CM1000
will display the chlorophyll index value, the brightness
reading from the ambient light sensor, a running average
and indicate whether the data logger is functioning. The
contents of the LCD are explained below.
INDEX
The CM 1000 chlorophyll index reading is reported on a
scale of 0 to 999. The INDEX value is a measure of the
relative greenness of the leaf. This value remains in the
meter's short-term memory until it is deleted or the meter
is shut off (see Keypad Operation, p. 8). If the data logger
is enabled the INDEX value is also recorded in the
logger's memory.
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