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8
9
6
7
10
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21
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31
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Pass resistance comparison testing
USB communication
Buzzer
Analog bar graph of insulation resistance testing
Data hold
Indication of dangerous operation
Monitoring display of voltage output
Polarization index testing mode
Dielectric constant testing mode
DC voltage testing mode
AC voltage testing mode
Dielectric absorption ratio testing mode
Inverted input of DC voltage testing
Over-range test result
Comparison resistance setting or timer setting
Display area of measured insulation resistance,
AC/DC voltage, capacitance, etc.
Timer
Stepping indication
Resistance comparison mode
Time1 of the timer
Time2 of the timer
Save data
Read data
Data storage capacity
Wi-Fi communication
Leakage current display
VIII. Button Operation
Power button
Long press this button for 2 seconds to turn on the tester (full symbols are displayed
on LCD for 1 second), long press again to turn it off. The tester is designed with
auto power off function.
IR
Insulation resistance testing button: The default mode is continuous insulation
resistance testing mode when powering on the tester. Short press this button to
switch to insulation resistance testing function.
● V (UT512E)
AC/DC voltage testing button: Without high voltage output, short press “V” button
to switch to AC/DC voltage testing mode. The tester can identify AC/DC voltage
automatically.
● DCV (UT512D)
DC voltage testing button: Without high voltage output, short press “DCV” button
to switch to DC voltage testing mode. DC voltage can be tested only.
● ACV (UT512D)
AC voltage testing button: Without high voltage output, short press “ACV” button
to switch to AC voltage testing mode. AC voltage can be tested only.
● /R (UT512E)
Capacitance/Resistance testing button: Without high voltage output, short press
“ /R” to switch to capacitance testing mode, short press again to switch to
resistance testing mode.
● ▲
A. Under insulation resistance measurement or capacitance measurement condition
and without testing voltage output, short press ▲ to select high-range voltage
output.
B. For data reading, press ▲ to select last group of data.
C. For time or resistance setting, press ▲ to increase time or resistance.
● ▼
A. Under insulation resistance measurement or capacitance measurement condition
and without testing voltage output, short press ▼ to select low-range voltage
output.
B. For data reading, press ▼ to select next group of data.
C. For time or resistance setting, press ▼ to decrease time or resistance.
UT512D/E User Manual
UT512D/E User Manual
