Audiomatica Qcbox 5, Руководство пользователя

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9 - CALIBRATING SOFTWARE
It is possible to calibrate the CLIO 10 software to obtain maximum precision when
executing current sensing measurement. The calibration relies on the input of the
correct sensing resistor value (
I Sense R ) in the External Hardware panel.
Inside the unit there is a sensing resistor of nominal value of 0.1 Ohm; as it is rather
difficult to maintain such a low value under strict production control the software
allows for the input of its value. The calibration relies on an impedance measurement
of a precision resistor of known value.
Please enter the value of 0.1 Ohm; this will give you reasonable precision
during measurements even in absence of the calibration described hereafter.
If you want to proceed with the calibration:
1) Take a resistor of known value (in the range 10 to 22 Ohm); assume, for example,
a known resistor of 10 Ohm
2) Connect the resisitor directly to the output (D.U.T.) socket of the QCBox (don't use
connecting cables)
3) Simply perform an impedance measurement (refer to chapter 13 of CLIOwin User's
Manual)
4) Read the value of its modulus at 1kHz; assume you read 9.5 Ohm
5) Multiply 0.1 by 1.05 (10/9.5) to obtain 0.105
6) Input this new value
7) Verify calibration with a new impedance measurement
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