SIGLENT TECHNOLOGIES SDM3055 Series User Manual

SDM3055 Series Digital Multimeter User Manual
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dB
Each dB measurement is different between the input signal and a stored relative value, with both
values converted to dBm. The dB function applies to AC voltage and DC voltage measurements only.
Press → [dB/dBm On] and select [shown in the following diagram. Function dB] to enter the
interface
Diagram 2-61 dB Function Interface
Table 2-25 dB Measurement Function Menu Function Description
Function Menu
Settings
Description
dB/dBm
On/Off
Turn on or turn off dB or dBm function.
Function dB
Open dB function and the lower right corner of the main display
show “dB”.
Ref R
Set the parameter via direction keys: 50Ω ~ 8000Ω.
dB Ref / Value
Set the referred value of dB.
Measure /
Ref Value
Set the referred value of measurement.
Done
Save all changes and return to the higher-level menu.
The computation method of the dB:
dB = 10 x Log10 [(Reading2/ R
REF
) / 0.001W] – (dB setting value)
R
REF
expressed measuring the resistance value in the actual electric circuit. Range of the dB setting
value: -120 dBm ~ +120 dBm. The default is 0 dBm.
dB value:
⚫ Input a value in dB setting interface by direction button, and then store it as dB setting value.
⚫ Settings of dB value are stored in volatile memory.

SIGLENT TECHNOLOGIES SDM3055 Series Specifications

General

Brand	SIGLENT TECHNOLOGIES
Model	SDM3055 Series
Category	Multimeter
Language	English