2
corrosive to measuring instrument, and direct sunlight shall be avoided.
(5) The instrument, especially the test leads connected to the DUT, shall be kept away from
the strong electromagnetic field to avoid interference to the measurement.
1.5 Test Fixture Used
Please use the test fixture or test cable provided by our company; the test fixture or test cable
made by the user or other companies may lead to incorrect measurement results. The test fixture or
test of the instrument cable shall be kept clean and the pins of the tested device shall be kept clean
to ensure that the device under test is in good contact with the fixture.
The test fixture or test cable shall be connected to such four test terminals as Hforce, Hsense,
Lsense and Lforce on the Front Panel of the instrument. For the device under test with a shielded
enclosure, the shielding layer can be connected to the ground line of the instrument.
NOTE: When there is no Installation of test fixture or test cable, the instrument will display
an unstable measurement result.
1.6
Warm-up and Continuous Working Hours
(1) In order to ensure accurate measurement of the instrument, the warm-up time shall be no less
than 30 minutes after the instrument is turned on; the continuous working hours shall be less than
16 hours.
(2) Please do not switch the instrument frequently, which, otherwise, will cause the confusion of
internal data.
1.7 Other Characteristics of the Instrument
(1) Power consumption: less than 20W.
(2) Dimensions: 265mm * 105mm * 305mm (W *H*L).
2 Description
ET44 series desktop bridge incorporates 3.5-inch TFT display, user-friendly interface, and a
variety of measurement parameters into one body. It is convenient for users to carry out remote
control with USB and RS232 and also perform the sorting of components using handle. In
function, it can not only adjust the output frequency and test level, but also record the value of
components in the process of measurement. In the performance parameters, its basic accuracy
reaches 0.2%. This manual will take ET4410 as an example.
● Measurement frequency up to 100kHz
● Test level 100 ~ 2000mV
●Support the measurement of DC
resistance and electrolytic capacitor
●Internal
bias
voltage
output
(1mV-1500mV)
●Automatic identification of component
measurement
●3.5-inch TFT display, 5 and a half bits
display
● Support SCPI communication protocol
● Provide system settings, which can configure
language, buzzer, screen brightness, etc
according to the needs of users.
● Basic accuracy 0.2%
● Manual and automatic range
● Be equipped with open circuit and short
circuit correction
● Comparator has sorting and alarm function
● Provide a variety of test ports
