Menu Functions - Benning CM 12 Bedienungsanleitung

SENSE function.
5.3.4 The HOLD/ZERO key 9 has two functions:
HOLD key functions:
Press the HOLD/ZERO key 9 to store the measuring result. The
„HOLD" symbol simultaneously appears on the display J . If the mea-
sured value exceeds the stored value, the change of the measured value
is indicated by the display flashing and an acoustic signal. (functions
,
to measuring mode.
ZERO key functions:
For null balance in case of current measurements (function
AUTO SENSE, DC and AC+DC). For this, remove the BENNING CM 12
from all live conductors and press the HOLD/ZERO key 9 for 2 seconds
until the "ZERO" symbol is displayed briefly.
5.3.5 Press the Cursor keys M (up/ down/
menu function on the LC display J .
5.3.6 Press the OK/ENTER key N to confirm the selected function.

5.4 Menu functions

Press the Cursor keys M to select the functions shown on the LC display J . The
selected function is indicated by a flashing symbol. To start a function, press the
OK/ENTER key N and the symbol will be shown with an underscore. To exit a
function, press the OK/ENTER key N for approx.. 2 seconds.
MMA function ("MAX", "MIN" and "AVG" (average) value storage)
5.4.1
Use the Cursor keys M to select the "MMA" function and start the
measurement by pressing the OK/ENTER key N . The function MMA
automatically records and stores the highest measured value (MAX), the
lowest measured value (MIN) and the average value (AVG) of a series of
measurements. Press the OK/ENTER key N to display the correspond-
ing value on the LC display J . Pressing the OK/ENTER key N for ap-
prox. 2 seconds switches the instrument back to normal operating mode.
Hz function (frequency measurements)
5.4.2
Use the rotary switch 5 and the MODE key 8 to select the measu-
ring function V AC or A AC. Use the Cursor keys M to select the "Hz"
function and start the measurement by pressing the OK/ENTER key N .
Pressing the OK/ENTER key N switches the instrument back to normal
operating mode.
HFR function (high-frequency suppression)
5.4.3
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 "HFR" func-
tion and start the measurement by pressing the OK/ENTER key N .
The function HFR is intended for connecting a low-pass filter (high-
frequency suppression) in the V AC and A AC functions in order to filter
out high-frequency pulses e. g. at pulsed motor drives. "HFR" symbol
on the LC display J . The limiting frequency (- 3 dB) of the filter is fg =
1000 Hz. When reaching the limiting frequency fg, the displayed value
is lower by a factor of 0.707 than the actual value without filter. Pressing
the OK/ENTER key N switches the instrument back to normal operating
mode.
without HFR (without low-pass filter) with HFR (with low-pass filter)
In order to prevent any danger, always measure a present vol-

tage first without low-pass filter (high-frequency suppression)
to detect a dangerous voltage.
08/ 2018
, and ). Press the key again to switch the device back
BENNING CM 12
, right/►, left/◄) to select the

with
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