Performance Verification Overview
Test Procedur
e Conditions
These procedures are valid only under the following conditions:
The system has been calibrated at an ambient temperature of 23 ° ±5 °C.
The system is operating in an environment whose limits are described in the
Specifications section.
The system, including probe, has had a warm-up period of at least 20 minutes.
The probe degauss/autobalance routine has been performed after the
20-minute warm-up period.
Equipment Preparation
Before performing the verification tests, turn all equipment on and allow the
entire system to warm up for a minimum of 20 minutes.
NOTE. Before performing any verification procedure, properly degauss the
probe. Remove the probe from any current-carrying conductor, lock the probe,
and pr
ess the amplifier PROBE DEGAUSS AUTOBALANCE button. The
degauss/autobalance routine is complete when the indicator light turns green.
The a
mplifier front panel will light the NOT TERMINATED INTO 50 Ω LED
during the degauss/ autobalance routine if the amplifier is not properly terminated
into 50 Ω. Verify that the oscilloscope input is 50 Ω and set to DC coupling. Use a
50 Ω feedthrough termination, attached at the oscilloscope input, if necessary.
2 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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