SIGLENT SDM3065X, Руководство пользователя

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SIG L ENT
SDM3055 Digital Multimeter 73
Math Function
The Multimeter provides five math functions: Statistics, Limits, dBm, dB and
Relative. Choose different math functions to meet different measurement
demands. Math functions can only be used in DC Voltage, AC Voltage, DC
Current, AC Current, Resistance, Frequency, Period and Temperature
measurement. Among these functions, dBm and dB are only used in DC
Voltage and AC Voltage measurement.
Press to show the operating menu of math functions on the screen, as
shown in the following diagram.
Diagram 2- 42 Math Function Menu
Table 2- 9 Math Function Menu Description
Function
Menu Settings Description
Statistics
Reading statistic functions, including: max, min,
average, span, std dev and samples.
Limits
The Limits function performs Pass/Fail testing
according to the specified upper and lower limits.
dBm
The dBm is based on a calculation of power delivered
to a reference resistance, 0dBm = 1mW.
dB
The dB measurement is the difference between the
input signal and a stored relative value.
Rel Value Value/Off
Turn on the relative value function and set up the
value. Or turn off the function.