Hioki BT4560 - Improving Measurement Accuracy

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Maintaining Voltage Measurement Accuracy (Self-Calibration Function)
4.3 Maintaining Voltage Measurement Accuracy
(Self-Calibration Function)
This function compensates the offset voltage and the gain drift in the internal part of the circuit, to
improve the voltage measurement accuracy.
To satisfy the instrument’s measurement accuracy, the self-calibration is required. Be sure to
perform it. Be sure to perform the self-calibration especially after warming-up or when the ambient
temperature has changed more than 2°C.
The methods for conguring self-calibration to run are as follows:
AUTO
Self calibration of 0.2 s is automatically executed before measuring the voltage.
In the functions (R, X, T) and (Z,
θ
, T) where the voltage measurement is not
performed, the self-calibration is not performed.
MANUAL
The self-calibration is performed from the input signal CAL of the EXT.I/O, or from
the command.
(Perform it under the TRIG waiting condition. When the signal is input, perform it
after the measurement.)
1
Press (MENU). (The setting screen appears.)
2
Select [MEAS] tab.
Selection
3
Select [AUTO] or [MANUAL].
Selection
Conrm
(or)
Cancel
Move to the next digit
(left or right)
Changing the numerical
value (up and down)
4
Customization of Measurement Conditions