Getting Started
DC Measurements
To measure DC current,
fi
rst degauss the probe:
1.
Verify that the ampli
fi
er and the oscilloscope input coupling are set to DC,
and the input impedance is set to 50
Ω
.
2.
Lock the probe closed without a conductor passing through it.
3.
Adjust the ground reference of the oscilloscope to move the trace to the
desired graticule line.
4.
Press the ampli
fi
er PROBE DEGAUSS AUTOBALANCE button.
The NOT TERMINATED INTO 50
Ω
LED is lighted if impedance is not
50
Ω
. If this is the case, make necessary changes. (For example, use a 50
Ω
termination.)
5.
After the degauss/autobalance routine completes, adjust the ground reference
(if necessary) using the ampli
fi
er
MANUAL BALANCE
controls.
WARNING.
The current probes can be used to measure current on uninsulated
wires. However, the circuit must be de-energized when connecting or removing
the current probe.
TCPA300/400 Ampli
fi
ers and TCP300A/400 Series Current Probes User Manual
13
Summary of Contents for TCP300A
Page 2: ......
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Page 18: ...Preface xii TCPA300 400 Amplifiers and TCP300A 400 Series Current Probes User Manual...
Page 34: ...Getting Started 16 TCPA300 400 Amplifiers and TCP300A 400 Series Current Probes User Manual...
Page 78: ...Specifications 60 TCPA300 400 Amplifiers and TCP300A 400 Series Current Probes User Manual...