PASCO CI-6740 High Current Sensor - Manual (Page 2)

CI-6740 012-08627A
2
Safety Precautions
SAFETY WARNING: When operating the High
Current Sensor, follow standard electrical safety
precautions in your classroom. To avoid the risk of
shock, do not use the High Current Sensor in or near
water, liquids, or chemicals. Also, keep water and
other liquids away from any devices connected to the
High Current Sensor, such as a power supply or other
electrical devices. When using a power supply,
connect the power supply and any other connected
equipment to a ground, such as a three-pronged wall
outlet.
Equipment Setup Options
CAUTION: To avoid magnetic interference,
which might reduce the accuracy of the sensor, keep the
High Current Sensor away from magnets. To avoid
overloading the circuit inside the sensor, do not exceed a
current of 10 amps.
a) Connecting the High Current Sensor to a PASCO
Coil
The High Current Sensor can be used with any of
the following PASCO coils (EM-6711, EM-6712,
EM-6713, and EM-6714). The High Current Sensor
must be connected in series with the circuit to be
measured.
1. Connect banana plugs to create a series circuit
between the power supply, Field Coil, and High
Current Sensor (Figure 1). A sample series circuit
connection is as follows: a) from the positive port on
the power supply to the negative port on the Field
Coil, and b) from the positive port on the Field Coil
to the negative port on the High Current Sensor, and
c) from the positive port on the High Current Sensor
to the negative port on the power supply.
2. Insert the DIN plug connector into an analog
channel on a ScienceWorkshop interface.
3. Turn on the power supply.
4. (Optional): For induction studies, use a PASCO
Detector Coil to monitor current from the Field Coil.
5. Follow the steps under “Software Setup and Data
Collection.”
b) Connecting the High Current Sensor to a PASCO
Hand-Crank Generator (EM-8090)
1. Using banana plug connectors or other leads, connect
the Hand-Crank Generator in series with a High
Current Sensor and a circuit board.
2. Insert the DIN plug connector into an analog
channel on a ScienceWorkshop interface.
3. Follow the steps under “Software Setup and Data
Collection.”
Figure 1: Series connection between a
power supply, Field Coil, and High Current
Sensor
Sensor
Power Supply
Coil