Page 106 of 110 150821/A4 Service & Calibration
4.3.1 1730T Verification Procedure
This section outlines the relevant information to verify performance of the 1730T LCR Meter. It
is recommended that performance be performed at least once a year using this outline procedure.
Instrument should be warmed up for a minimum of 15 minutes prior to verification. Verification
should be performed under the following conditions: Temperature equal to 23°C ± 1.2°C and
Relative Humidity (RH) between 35% and 55%.
Recommended standards are listed below. All standards should be traceable to a National
Laboratory such as N.I.S.T. with calibrated values for primary and secondary parameters at the
required test frequencies. QuadTech’s verification conforms to ANSI Z540 and QuadTech
recommends that the calibrated values for the primary and secondary standards have an
uncertainty 4 times better than the primary and secondary accuracy specified in the Verification
Data Sheet. If the calibrated values for the standards used do not have an uncertainty of 4 times
better than the specified accuracy of the 1730T the uncertainty of the standard should be added to
the specified accuracy of the 1730T. For example: if the calibrated value of the 500mΩ standard
is 495.0mΩ ±1% at 100Hz, the expected reading on the 1730T would be 495.0 mΩ ±1.7% (1%
for the standard accuracy plus 0.7% for the 1730T accuracy). This also applies for secondary
parameters as well.
Primary and secondary accuracy specifications given in the Verification Data Sheet are based
upon the accuracy formulas in section 2.4.5 of this manual.
Measurement Standards
Inductance Standards 4 Terminal
Inductor 10 μH (nominal value)
Inductor 100 μH (nominal value)
Inductor 1000 μH (nominal value)
Standard Open and Short
Resistance Standards 4 Terminal
Resistor 95K ohm (nominal value)
Resistor 6K ohm (nominal value)
Resistor 374 ohm (nominal value)
Resistor 25 ohm (nominal value)
Resistor 5 ohm (nominal value)
Resistor 500m ohm (nominal value)
Capacitance Standards 2 or 4 Terminal
Capacitor 50pF (nominal value)
Capacitor 100pF (nominal value)
Capacitor 200pF (nominal value)
Capacitor 500pF (nominal value)
Capacitor 1000pF (nominal value)
Capacitor 0.1μF (nominal value)
Capacitor 0.05μF (nominal value)
Capacitor 0.02μF (nominal value)
Capacitor 0.01μF (nominal value)
Capacitor 0.002μF (nominal value)
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