User manual

SIGLENT
18 SDM3055 Digital Multimeter
3. Choose a proper voltage range according to the measured circuit.
Table 2- 3 Measurement Characteristics of AC Voltage
Ranges*
200mV、2V、20V、200V、750V
Input Protection
750Vrms on all ranges（HI terminal）
Configurable
Range, Rel
NOTE*:
 All the ranges enable to obtain 20% value higher than original except
750V. Besides, both Manual and Auto are available for setting every
range.
 When inputting range is higher than 750V at 750V Level, “overload” will be
shown on the screen.
 750V input protection exists in every range.
4. Set relative value (Optional operation).
Press【Rel】to open or close Relative math function. When it is opened, the
reading displayed is a relative value which comes from the result of actual
measurement value subtracts the value that has been set. (Please refer to
“ Math Functions” in Chapter 2 to know about the details.)
5. Read measurement result.
Select required measurement rate (reading rate) by pressing 【Speed】and
read the measurement result. If you press and then press and
to get the frequency value measured from input AC signal.
Diagram 2- 10 Dual-display
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.