Chapter 4 External Interfaces; Precautions For Use - East Tester ET51 Series User Manual

Dc low resistance tester
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(1) When the "U_H_Lim" is selected, the Buzzer will sound for 50ms if
the measured resistance value is greater than the configured upper
limit.
(2) When the "Pass" is selected, the Buzzer will sound for 50ms if the
measured resistance value is within the configured upper and lower
limits.
(3) When the "D_L_ Lim" is selected, the Buzzer will sound for 50ms if
the measured resistance value is less than the configured lower limit.
(4) When "Disable" is selected, the whole Beep function will be disabled.
Note: Please switch to the corresponding range for faster response
speed. Otherwise, switching speed will be slower in automatic range
mode. Users can switch to fast mode to further improve the Beep
response speed.

Chapter 4 External Interfaces

4.1 Precautions for Use

Do not plug or unplug communication cables while the instrument is
powered on. If needed, or when disconnecting, please first disconnect the
instrument's power to avoid instrument malfunction or other unforeseen
accidents.
Do not provide power beyond the specific power supply
19

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