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ET35 Series Digital Bridges(LCR)Operating Instructions
Hangzhou Zhongchuang Electron Co., Ltd.
23
Set the bias voltage
The steps of setting the external DC bias:
1. Connect the DC power to the input terminal of the external bias.
2. Press the [Meas Setup] key.
3. Use the arrow key to select the "offset", and press the [Enter] key.
4. Use the function key to set “external”.
5. Press the [BIAS] key.
6. When the setup of the internal bias is successful, nothing is shown after the "bias".
“DCBIAS” is displayed in the status display area.
Note: you must use the numeric key and unit function keys to switch the bias leval
between current and voltage. When measuring an object, reading the value after the
status of the object is stable one second after the actual bias applied is preferable. Usually
bias is used for capacitor. If the bias voltage is used for low impedance devices, the
measurements will be inaccurate.
3.1.8 Automatic level control function
The automatic level control function can adjust the actual level (voltage between the
two terminals of the DUT or current flowing through the DUT) to the measurement level
value you set. The function is used to ensure that the measured voltage or current across
the DUT is kept constant. When using the automatic level control function, the level
measurement range can be limited by the following:
Setting range of the constant voltage: 10mV ~ 1V
Note: When the constant level function is active, if the set value of the level is beyond
the above mentioned range, the constant level function will automatically be set to OFF.
The current value of the set level is the general non-constant level values.
The steps of setting the automatic level control function:
Содержание ET3501
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