BK Precision 5335B, User Manual

Page: 19 / 52

Menu 19
Item Description
State The state of the average function, On or Off.
Type Exp or Line. Exp enables index averaging, and Line enables linear averaging.
Tcontrol Sets averaging to being either a rolling of repeating average.
Count EXP averaging attenuation constant, or LINE average count.
Figure 2.12
M Measured value
m The number of values in the average set (1-64)
When
𝑚
is divisible by
𝑛
, the calculated value is the moving average; otherwise calculated value is the repeated average.
NOTE: When index averaging is set, averaging is implemented under the harmonic measurement function. When
linear averaging is set, averaging can only be implemented in the conventional measurement function and this mode
is not applicable to the harmonic measurement function.
2.9 External Sensor Setup
Figure 2.13 is accessed via Menu>Setup>Ext Sen Set, and contains settings for external sensors. The state (on/off)
and gain (V/A (mA)) are set here.
2.10 Other settings: Filter and Crest Factor
Configure the measurement filter, synchronization signal source and crest factor from the “Other Set” menu. Access this
menu via Menu>SET UP>OTHER SET. The “Other Set” menu is shown in Figure 2.14 .
2.10.1 Filter
Frequency filter it is inserted in the frequency measurement circuit and may affect frequency measurement. It
can be used for filtering high-frequency components of interference to make the measured fre-
quency parameter more accurate. When the frequency filter is switched on, the voltage or cur-
rent of no more than 200Hz can be measured. The cutoff frequency is 500HZ.
Line filter it is inserted in the voltage and current measurement circuit and has direct influence on mea-
surement of the voltage, current and power. When the line filter is switched on, noise and high-
frequency components from the inverter or distortion waveform can be filtered. The cutoff fre-
quency is 500HZ.