Environment Conditions; Electrical Specifications - Benning MM 11 Instrucciones De Servicio

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
(2 seconds) of the button
- The extreme values (MAX/ MIN) of the measuring series are
retrieved by pressing the button
ating the button (yellow)  ▲ or th­e button
press of the button
A press of the button
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.

Environment 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. Direct voltage ranges (Switch setting: V DC, mV DC)
The input resistance amounts to 10 MΩ (within the 400 mV range 1 GΩ).
Measuring range Resolution
20 mV
200 mV
2V
20 V
200 V
1000 V
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 errors + 1.5 %
Crest factor from 3.0 to 4.0 additional errors + 3.0 %
Measuring range Frequency range
20 mV, 200 mV
2 V, 20 V
09/ 2007
1 µV ± (0.06 % of the measured value + 60 Digit)
10 µV ± (0.06 % of the measured value + 20 Digit)
100 µV ± (0.06 % of the measured value + 10 Digit)
1 mV ± (0.06 % of the measured value + 10 Digit)
10 mV ± (0.06 % of the measured value + 10 Digit)
100 mV ± (0.06 % of the measured value + 10 Digit)
40 Hz ~ 100 Hz ± (0.7 % of the measured value + 80 Digit)
100 Hz ~ 1 kHz ± (1.0 % of the measured value + 80 Digit)
40 Hz ~ 100 Hz ± (0.7 % of the measured value + 50 Digit)
­ B ENNING­MM­11­
. An extended operation
 exits this mode.
 and subsequently oper-
 exits this mode.
 (DATA LOG) exists the DATA-LOG-
Meas. precision
Meas. precision
 ▼. Another
Overload protection
1000 V
1000 V
1000 V
1000 V
1000 V
1000 V
Overload protection
*
1
750 V
750 V
750 V

DC
DC
DC
DC
DC
DC
eff
eff
eff
22