East Tester ET3501, Operating Instructions Manual

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ET35 Series Digital Bridges（LCR）Operating Instructions
Hangzhou Zhongchuang Electron Co., Ltd. 95
Resistance measuring accuracy
Capacitance measuring accuracy
Inductance measurement accuracy
6.4.4 Steps of measurement
Frequency accuracy
Test point: 10Hz, 100Hz, 1kHz, 10kHz, 50kHz
1. Mount the test fixture on the output port of ET35, clamp the two probes of the
multimeter with its two clips;
2. The six and a half digits are set to FRENQ mode;
3. Operating ET35: the output voltage is 1V, internal bias, the bias voltage is 0V, internal
trigger, and slow speed;
4. According to the requirements for test point, set the
frequency
options, observe the six
and a half digit measurement results, and record them in the column of measurement
results ;
5. Repeat step 4 until the test on all points is completed;
6. Compare to see if the actual accuracy meets the requirement.
Level output, measurement accuracy
Test point: 10mV, 50mV, 100mV, 500mV, 1V
1. Mount the test fixture on the output port of ET35, clamp the two probes of the
multimeter with its two clips;
2. The six and a half digits are set to ACV mode;
3. Operating ET35: the frequency is 1kHz, internal bias, the bias voltage is 0V, internal
trigger, and slow speed;
4. According to the requirements for test point, set the
level options, observe the display
of the multimeter and the VAC at the lower part of the screen of ET35 and record then in
measurement results and display results ;
Repeat step 4 until the test on all points is completed;
5. Compare to see if the actual accuracy meets the requirement.
Internal bias voltage accuracy
Test point: 0V, 0.5V, -0.5V, 2V, -2V
1. Mount the test fixture on the output port of ET35, clamp the two probes of the
multimeter with its two clips;
2. The six and a half digits are set to DCV mode;
3. Operating ET35: the frequency is 100Hz, the level 10mV, the range 30Ω, internal bias,
internal trigger, and slow speed;
4. According to the requirements for test point, set the
bias voltage options, observe the
the display of the multimeter, and record them in the column of measurement results ;