CBLé System Guidebook 23
Multimeter Mode (Continued)
Note: The CBL can be used in
Multimeter
mode as a stand-alone device
(without a calculator connected) to measure voltage, resistance, current,
period, frequency, meters, and feet without setup commands from the
calculator.
For example, pressing M O
O O O O prepares
the CBL to measure frequency as a stand-
alone device. This is shown in the display
example to the right.
MULTIMETER
kHz
CH1
Hz
If the CBL is connected to a calculator, commands in Multimeter Mode
Setup (
CMD6
, page 52) also select multimeter operations.
When the CBL is in
Multimeter
mode, M returns the CBL to the
Communications mode.
Note: The CBL does not automatically power down while it is in
Multimeter
mode.
Internal Mode
This mode lets you measure the internal system voltage of the CBL.
When the CBL is in Communications mode, L
[
INTERNAL
]
puts the
CBL into
Internal
mode.
For example, pressing L
[
INTERNAL
]
sets up the CBL to measure the
internal system voltage provided by four AA batteries inside the unit.
In the display example to the right, these
batteries indicate a combined voltage level
of 4.50 Volts.
Note: This is the point at which a low-battery condition is sensed. In this
case, the batteries are low, and the low-battery indicator is on. The
optimum level is about 5.0 Volts with new batteries.
M or L
[
INTERNAL
]
when the CBL is in
Internal
mode returns the
CBL to Communications mode.
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