Electronic Technologies ES3050, User Manual

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after power on, and automatically turned off after 15 minutes when not in operation.
2
．
Battery Voltage Check
After the power is turned on, if the LCD displays the battery voltage low symbol
“ ”
,
it indicates that the battery is low, please charge it in time. The battery power is sufficient to
ensure the accuracy of the measurement. When the battery power is reduced, the battery
indicator is reduced.
3
．
Precision Measurement of Equipotential Resistance
In the test, first remove the insulating layer and oxide layer on the
surface of the object to be tested.
Cannot be tested when measuring equipotential resistance or DC low
resistance if electriferous
The connection between the test line and the detector and the measured
object should be reliable.
Cause the component test line is heated, it will cause errors. It is
recommended that the test result be more accurate every 30 seconds.
During the test, the detector displays the OL symbol, indicating that the
equipotential value between the two points measured exceeds the range,
check the test line contact, may be tested open between two points.
After booting up, press the
“ Ω ”
button (the
“
R
”
symbol on the screen) to switch to the
equipotential resistance test state, connect the test line to the measured object, as shown in the
figure, press the
“
TEST
”
button to start the test,the measured resistance value is displayed
after the countdown is completed.
The figure below shows the equipotential resistance between the meter box and the
ground and the lower line.
。