03/ 2011
BENNING MM 11
22
5.3.3
DATA-LOG-OUT
(retrieve data)
If the BENNING MM 11 is in the
DATA-LOG
mode, operate the button
(DATA LOG)
to retrieve the memory. The measured value
most recently read in appears on the digital display unit
, stating
the memory location no. in the subdisplay
. The memory locations
1 - 40000 are selected by means of the button (yellow)
▲ and the button
▼ with an extended operation (2 seconds) of the button causing a
fast run-through of the memory locations (10 memory locations/ sec.).
- The maximum and minimum values of the measuring series are
retrieved by pressing the button
. An extended operation
(2 seconds) of the button
exits this mode.
- The extreme values (MAX/ MIN) of the measuring series are
retrieved by pressing the button
and subsequently oper-
ating the button (yellow)
▲ or the button
▼
. Another
press of the button
exits this mode.
A press of the button
(DATA LOG)
exists the DATA-LOG-
OUT mode.
Alternatively, the measured value store can be read out also via the
supplied BENNING PC- Win MM 11 software.
A renewed automatic save of a measuring series deletes the existing data.
6. Ambient conditions
- The BENNING MM 11 is intended for making measurements in dry environ-
ment.
- Maximum barometric elevation for making measurements: 2222 m,
- Overvoltage category/ Siting category:
IEC 60664-1/ IEC 61010-1 → 600 V
category III; 1000 V category II,
- Contamination class: 2,
- Protection Class: IP 30 (DIN VDE 0470-1 IEC/ EN 60529)
IP 30 means: Protection against access to dangerous parts and protection
against solid impurities of a diameter > 2.5 mm, (3 - first index). No protec-
tion against water, (0 - second index).
- Operating temperature and relative humidity:
For operating temperature from 0 °C to 30 °C: relative humidity less than 80 %
For operating temperature from 31 °C to 40 °C: relative humidity less than 75 %
For operating temperature from 41 °C to 50 °C: relative humidity less than 45 %
- Storage temperature: The BENNING MM 11 can be stored at any tempera-
ture in the range from - 20 °C to + 60 °C (relative humidity from 0 to 80 %).
The battery should be taken out of the instrument for storage.
7. Electrical specifications
Note: The measuring precision is specified as the sum of
- a relative fraction of the measured value and
- a number of digits (counting steps of the least significant digit).
This specified measuring precision is valid for temperatures in the range from
18 °C to 28 °C and relative humidity less than 80 %.
For the 4,000 digit counter mode, the figures with the lowest value have to be
divided by 10!
7.1 Direct voltage ranges
(Switch setting: V DC, mV DC)
The input resistance amounts to 10 M
Ω
(within the 400 mV range 1 G
Ω
).
Measuring range Resolution
Meas. precision
Overload protection
20 mV
1 µV
± (
0.06 % of the measured value + 60 Digit
)
1000 V
DC
200 mV
10 µV
± (
0.06 % of the measured value +
20 Digit)
1000 V
DC
2 V
100 µV
± (
0.06 % of the measured value +
10 Digit)
1000 V
DC
20 V
1 mV
± (
0.06 % of the measured value +
10 Digit)
1000 V
DC
200 V
10 mV
± (
0.06 % of the measured value +
10 Digit)
1000 V
DC
1000 V
100 mV
± (
0.06 % of the measured value +
10 Digit)
1000 V
DC
7.2 Alternating voltage ranges
(Switch setting: V AC, mV AC)
The input resistance amounts to 10 M
in parallel 100 pF. The measured value
is obtained and displayed as a real effective value (TRUE RMS).
Selectable coupling type: AC or AC+DC. For the coupling AC+DC an additional
error of 1 % + 80 Digit must be taken into account. In the case of non-sinus-
shaped curves the display value becomes less precise. Thus an additional error
results for the following crest factors:
Crest factor from 1.4 to 3.0 additional 1.5 %
Crest factor from 3.0 to 4.0 additional 3.0 %
