User Manual
CHAPTER 2. MENU 12
State The state of the average function, On or O.
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.
2.2.1.1 EXP - Index averaging
D
n
= D
n−1
+
M
n
− D
n−1
k
(2.1)
Dn The value displayed after the nth index averaging (D1, the value displayed after the rst averaging, is equal
to M1)
Dn-1 the value displayed after the (n-1)th index averaging
Mn the nth measured data.
K attenuation constant (1-64)
2.2.1.2 LINE - Linear averaging
D
n
=
M
n−(M−1)
+ . . . + M
n−2
+ M
n−1
+ M
n
m
(2.2)
Dn The value displayed after linear averaging of m values from the n − (m − 1)
th
to n
th
value
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.
2.2.2 External Sensor Setup
Figure 2.12 accesses via Menu>Setup>Ext Sen Set contains settings used with external sensors. The state
(on/o) and gain (V/A (mA)) are set here.
2.2.3 Other settings: Filter and Crest Factor
Congure the measurement lter, 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 2.13.