6.1 Preface
6-2 ZM2376
6.1 Preface
The following maintenance is essential for using the device under the best condition.
•Operation Inspection: Check if the device operates properly.
•Performance Testing: Check if the device respects the rated values.
•Adjustment, calibration: If the rated values are not satisfying, NF Corporation will make the
necessary adjustment or calibration to restore performance.
•Damage repairs: When performance cannot be restored by the adjustment or calibration, NF
Corporation will identify the cause and location of the damage and will
execute repairs.
This instruction manual describes how to easily proceed with a performance testing.
For more accurate inspections, adjustments, calibration or repairs, contact NF Corporation or one of
our representatives.
The following measurement instrument and standard are needed for the performance test.
•Frequency counter: Accuracy: within ± 10 × 10
-6
Reciprocal type, with noise rejection filter
•AC voltmeter: RMS value display
Accuracy: ± 0.5% (1kHz)
Input resistor: approx. 1M or more
•DC voltmeter: Accuracy: ± (0.5% + 0.3mV) (10V range)
Input resistance: approx. 10M or more
•Multimeter: Should be able to make a diode test for measuring the voltage at
approximately 1mA in test current
•Standard capacitor: 1pF, 10pF, 100pF, 1nF, 10nF, 100nF, 1µF
•Standard resistor: 10m, 100m, 1, 10, 100, 1k, 10k, 100k, 1M, 10M
The standard capacitor and the standard resistor should be calibrated under
the actual test conditions.
•Others: OPEN standard, SHORT standard
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