Message Code - GW Instek LCR-800 Series User Manual

LCR-800 Series User Manual

6. MESSAGE CODE

This section describes the message code for the LCR Meters.
OVER-01
Cause:
1. If the impedance of "Device-under-test" is small than the existing
measurement range of the LCR Meters, the "OVER-01" message will be
displayed on the LCD monitor.
Calculation formula:
Capacitance: XC=1/2πfC
Inductance: XL=2πfL
where f=test frequency in Hz
2. If the inductor of "Device-under-test" is very large at a very high "test
frequency", the "Resonance effect" will occur and the impedance will
decrease. Hence, the measured value is useless. Meanwhile, an "OVER-01"
message will be displayed on the LCD monitor.
Solution:
1. Turn on the "Constant Voltage" mode (please refer to 4-5-5. Constant
Voltage Source, page 22, for details).
2. Select the less measurement range. Please refer to table B-1: Range Hold,
page 42, in order to reach the exact measurement range. Turn on the "Range
Hold" mode after the measurement range fixed.
Note: Both two solutions will reduce the accuracy of the LCR Meters.
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