UNI DM-1170A, Operation Manual

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5. OPERATION INSTRUCTIONS
5.1 AC/DC Voltage Measurement
5.1.1 DC Voltage Measurement (DCV)
WARNING: The measurement DC voltage must not exceed DC1000V!
The measurement of DC voltage has three modes: DCV, (AC+DC)V+Hz and dBm+Hz.
1) Press function key
V .
2) Press SELECT key to select measurement mode.
3) According to practical demands, press REL , MAX/MI N and 2nd VIEW keys to have relative measuring or
record.
4) Connect the black test lead to “ COM ” terminal and the red test lead to “ V Ω Hz ” terminal.
5) The meter is default in auto range mode and will automatically select a most suitable range. To select a
range manually for DCV measurement, press RANGE key to select a proper range. There are four
ranges to choose from: 8.0000V/80.000V/800.00V/1000.0V
6) Touch the test leads to the test points and read the display on both the primary and secondary display.
Press SELECT Primary display
Secondary display
(Press
2nd VIEW)
Analog bar, MAX/MIN/AVG,
REL, HOLD functions
DCV DCV Available
(AC+DC)V+Hz (AC+DC)V Hz/ACV Disable
dBm+Hz dBm Hz/ACV/DCV/(AC+DC)V Disable
5.1.2 AC Voltage Measurement (ACV)
WARNING: The measurement AC voltage must not exceed AC750V!
The measurement of AC voltage has three modes: ACV, ACV+Hz and dBm+Hz.
1) Press function key
V .
2) Press SELECT key to select measurement mode.
3) According to practical demands, press REL , MAX/MIN and 2nd VIEW keys to have relative measuring or
record.
4) The meter is default in auto range mode and will automatically select a most suitable range. To select a
range manually for ACV measurement, press RANGE key to select a proper range. There are three
ranges to choose from: 8.0000V/80.000V/750.00V
5) Connect the black test lead to “ COM ” terminal and the red test lead to “ V Ω Hz ” terminal.
6) Touch the test leads to the test points and read the display on both the primary and secondary display.
Press SELECT Primary display
Secondary display
(Press
2nd VIEW)
Analog bar, MAX/MIN/AVG,
REL, HOLD functions
ACV ACV Available
ACV+Hz ACV Hz/ %/ %/ ms/ %ms Disable
dBm+Hz dBm Hz/ACV Disable
5.1.3 AC/DC Milli Voltage Measurement (ACmV, DCmV)
WARNING: The measurement voltage must not exceed DC250V or AC peak voltage 250V!
The measurement of AC/DC milli voltage has three modes: DCmV, ACmV+Hz and dBm+Hz.
1) Press function key
mV .
2) Press SELECT key to select measurement mode.
3) According to poetical demands, press REL , MAX/MIN and 2nd VIEW keys to have relative measuring or
record.