Texas Instruments CBL Manual Book page 61

About the Voltage Probe
The TI voltage probe is a generic probe that you can use to read any
voltage between ±10 Volts. The
probe causes the CBL software to automatically measure voltage. No
conversion equation is loaded. The black hook should be connected to
ground and the red hook to the signal voltage.
Channels
Voltage range
Chemical tolerance
Pins used
Note: It is very important that the ground connections of the analog
inputs are never connected to different potentials. These ground
connections are all in common. Connecting the grounds to different
potentials may damage the CBL.
AutoIDENT Probes
The CBL contains provisions for the
listed below. A Conversion Equation is loaded automatically for some of
the AutoIDENT
IDENT
Value1 Probe Type
33K TI Voltage probe
6.8K Current probe
3.3K Resistance probe
10K TI Temperature probe
15K Temperature probe for °F
4.7K TI Light probe
47K Voltage probe
1
IDENT values are resistance values in ohms (tolerance ±5%).
2
Operation 3 is a mathematical conversion of voltage to a current reading (1V=1A).
There is no circuitry inside the CBL to convert current to voltage; this must be done
in the external probe.
3
Default value for the TI Temperature probe is °C.
AutoIDENT
Connects to
±10 Volts
None (air only)
1
2
4
values.
CH1, CH2, and CH3
2
3
for °C
resistor contained in the
CH1 , CH2
Signal
Ground
AutoIDENT resistor
probe resistor values
AutoIDENT
Operation Default
„10 Volts (
2
„10 Amps (
3
4 1K to 100KJ
L20°C to 125°C
10
L4°F to 230°F
11
12 10µW/cm
14 0 to 5 Volts
CBLé System Guidebook
(analog channels)
CH1 or CH2 )
or )
CH1 CH2
2 2
to 1mW/cm
61