Benning CM 12 Bedienungsanleitung Seite 30

5.4.4 Function
Use the rotary switch 5 and the MODE key 8 to select the measuring
function V AC or A AC. Use the Cursor keys M to select the "
tion.
Measurement function V AC:
Start the measurement by pressing the OK/ENTER key N .
Measurement function A AC:
Start the measurement by pressing the OK/ENTER key N for approx. 2
seconds.
The PEAK HOLD function (peak value storage) detects and stores the
"PEAK MAX"/"PEAK MIN" value on the display J . The "Peak MAX" /
"Peak MIN" value is called via the OK/ENTER key N . Pressing the OK/
ENTER key N for approx. 2 seconds switches the instrument back to
normal operating mode.
5.4.5 Function
Use the rotary switch 5 and the MODE key 8 to select the measuring
function A AC. Use the Cursor keys M to select the "
the measurement by pressing the OK/ENTER key N .
With the INRUSH function (inrush current measurement), the measur-
ing process is initiated for 100 milliseconds after a trigger current has
occurred. The determined r.m.s. value of this time period is displayed.
Pressing the OK/ENTER key N for approx. 2 seconds switches the in-
strument back to normal operating mode.
Trigger current: (> 1 A in the 100 A measuring range, > 10 A in the 600 A
measuring range)
Function
5.4.6
Use the rotary switch 5 and the MODE key 8 to select the measuring
function V AC or A AC. Use the Cursor keys M to select the "
tion. Start the measurement by pressing the OK/ENTER key N (display
„THD" and „rdy").
In order to assess the mains quality, it is possible to determine the total
harmonic distortion (THD value in %) and the distortion of an individual
harmonic h01 to h25 (%):
THD =
Hn =
* up to the 25th harmonic
08/ 2018
-PEAK-HOLD (peak value storage)
INRUSH (inrush current measurement)
Motor Trigger
Off Point
THD (total harmonic distortion)
r.m.s. value (RMS) of all harmonics*
r.m.s. value (RMS) of the fundamental frequency
r.m.s. value (RMS) of the individual harmonics
r.m.s. value (RMS) of the fundamental frequency
BENNING CM 12
Motor
On

" func-
" function. Start
Time
" func-
x 100 %
x 100 %
func-
30