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5 Verification and Calibration
Verification Procedure
Introduction
Verification is recommended to verify that the instrument is working properly during incoming
inspection - as an acceptance test. Verification is also recommended if you notice suspicious
instrument behavior or if there is a question about the performance of the instrument. Verification
procedures can be time consuming as they verify the operation of a single channel at a time.
Performing a reference calibration and a channel calibration provides the same high
level of confidence as the manual channel-by-channel verification process.
Verification is not necessary as part of a standard maintenance cycle. It is also not necessary after
performing any of the calibration procedures, as the calibration processes verify that the reference
and channels are functioning within specification.
Verification commands set each channel to a specific output level, which can then be used to verify the
specified accuracy of the channel at that operating point. If the instrument fails any of the verification
tests, try performing the Reference and Channel calibrations again. If verification is still unsuccessful,
return the unit to a Keysight Technologies Service Center.
Verification Equipment and Considerations
A 7½-digit DMM, Keysight 34470A (Run auto-calibration on the DMM prior to starting)
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A 442-ohm ¼ watt through-hole resistor, Keysight P/N 0698-4591 or equivalent
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The ambient temperature is stable and between 23 °C ±2 °C. Relative humidity is <80%
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The BT2152A must be warmed up for at least 1 hour prior to verification tests
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External DMM Connections and Setup
The verification setup shown for channel 1 on a single RJ45 connector. Channels are verified one at a
time. Channels are in groups of four, each group connected to one RJ45 connector.
Zero-current verification
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Full-scale current verification
Keysight BT2152A Operating and Service Guide
Voltage verification
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