Maintenance & Calibration
91
Required Equipment
Vitrek
recommends the use of a Fluke 5700A+5725A with wide band option as the
calibration standard for external calibration of the 6000 instrument. This equipment
should have its wideband output (50
Ω
) previously calibrated at the desired frequency
and output levels into a known 50
Ω
load, if its stated accuracy is insufficient.
Other equipment may be used with the following output levels required at the desired
frequency of calibration. For the required accuracy at each level, see the
specifications section of this manual.
700V, 200V, 65V, 20V, 6V, 2.5V, 750mV, 200mV, 70mV, 20mV and 6mV
2.5V, 750mV, 200mV, 70mV, 20mV and 6mV at 50
Ω
750mA, 250mA, 75mA, 25mA, 7.5mA, 2mA and 600
µ
A
Calibration Procedure
The instrument prompts the steps to this external calibration procedure. Before
initiating an external calibration procedure, decide upon a prefer calibration
frequency for the instrument. Choose the frequency most commonly used in the
range 10Hz to 1kHz. Frequencies up to 10kHz may be used with some resultant
degradation in the low frequency performance of the instrument. Note that
Vitrek
calibrates the 6000 family of instruments at a frequency of 400Hz, unless
otherwise instructed.
Warning:
HIGH VOLTAGES MAY BE PRESENT.
When moving the input
connection to a different input connector, ensure that the output voltage has been
fully removed before touching the outer shell of the BNC connector.
Ø
To perform an external calibration:
1. Press the
CAL
key.
2. Press the
DISPLAY SELECT 4
key (next to the display line showing
External
Calibration
).
3. Repeat steps 4 through 9 for each input level prompted in the uppermost display
line. Take careful note of the following points:
•
Most output levels are repeated for different groups of inputs (inputs B and
Sync).
•
You may need to reset the calibration source’s output frequency to maintain
the desired frequency in each step.
Summary of Contents for Xitron 6000-2
Page 1: ...USER S GUIDE 6000 2 6000 3 Phase Angle Voltmeters...
Page 2: ......
Page 36: ...36 6000 2 3 User Guide Rev E...
Page 86: ...86 6000 2 3 User Guide Rev E...
Page 94: ...94 6000 2 3 User Guide Rev E...
Page 101: ...Appendix B 101...
