doble F6000 - Appendix F: Field Calibration Verification; Testing Specifications and Equipment

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Appendix F. Field Calibration Verification
This appendix defines testing specifications and procedures for
performing Amplitude and Distortion tests, and Phase Shift tests on
configured current and voltage sources.
Testing Specifications
Ambient Accuracy
F6000 Test Instruments are normally used in areas where the temperature
is between 68 and 86
°
F (20-30
°
C) and the AC power is within ±10% of
115 (or 230) V. Under these conditions, and when connected to a load
that does not exceed the source’s range limits, F6000 AC test signals are
warranted to meet the following accuracy specifications:
Amplitude ±0.03% of range from 0 to 10% of range, and
within ±0.3% of setting from 10 to 100% of range
for High Current and Convertible Voltage Sources.
Amplitude ±0.06% of range from 0 to 10% of range, and
within ±0.6% of setting from 10 to 100% of range
for Convertible Current Sources.
Phase Angle ±0.25
°
at 50 or 60 Hz.
Distortion 2% maximum at 50 or 60 Hz., 0.1% typical
Test Setup
All ambient accuracy tests are measured with open circuit Voltage
Sources. All Current Sources are measured with either a shunt or
ammeter connected across the output.
Test Equipment
All test equipment must be more accurate than the signal being
measured, and have a valid calibration sticker tracing the calibration to
the Nation Bureau of Standard references. As a reference, the instruments
used by Doble Engineering for factory calibration of the F6000 are listed
in Table F.1 on page F-2.