Teledyne T3DMM6-5, Руководство пользователя

Страница: 90 / 121

89
Math Function
The Multimeter provides five math functions: Statistics, Limits, dBm, dB and
Relative. Choose different math functions to meet different measurement
needs. 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.
Explanation:
•
Math functions are only applicable to the main display.
•
If a measurement function is changed, all math functions will be
stopped except Statistics.