CALIBRATION
CALIBRATION PROCEDURES
This instrument has been fully calibrated at the factory in accordance to our published
specifications. It has been calibrated with standards traceable to NIST. You will find in
this manual a copy of the "Certificate of Calibration". It is recommended that you have
this instrument recalibrated and a safety check done at least once per year. Slaughter
recommends you use "Calibration Standards" that are NIST traceable, or traceable to
agencies recognized by NIST to keep this instrument within published specifications.
End user metrology standards or practices may vary. These metrology standards
determine the measurement uncertainty ratio of the calibration standards being used.
Calibration adjustments can only be made in the Calibration mode and calibration checks
or verification can only be made while operation in Test mode.
Calibration Equipment Required:
The following standard equipment will be needed to properly calibrate your instrument.
A Standard AC Voltmeter with 4,000 Volts range
A Standard AC Voltmeter with 6 Volts range
A Standard DC Voltmeter with 4,000 Volts range
A Standard DC Voltmeter with 1,000 Volts range
A Standard AC Ammeter with 30 A range
A Standard AC Milliammeter with 30 mA range
A Standard DC Milliammeter with 5 mA range
A Standard Resistor 100 k/20Watt/1500VAC
A Standard Resistor 1 M/0.25Watt/300VDC
A Standard Resistor 50 M/0.25Watt/1000VDC
Adjustable AC power supply 0-277VAC, 8.4kVA
Low impedance adjustable load 7Ω – 30Ω , 8400 W
Adjustable DC power supply 0-8VDC
Calibration Initialization
To enter the calibration mode the instrument must be in the OFF position. Using a pen or
small screwdriver, press and hold the recessed calibration key on the rear panel, then turn
on the input POWER switch. The display will show:
To calibrate AC voltage please follow procedure on next paragraph, to calibrate other
parameters use Up () or Down () arrow keys to scroll to the desired calibration point,
then follow procedure on relative paragraph below.
When the calibration process is completed successfully and the instrument accepts the
entered calibration data it will output one short “beep” and advance to the next calibration
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