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Benning IT 101 Manual

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02/ 2011
BENNING IT 101
16
30 V AC/ DC is connected to the input of the instrument.
5.1.18 Temperature coefficient of the measured value: 0.15 x (stated measur-
ing precision)/ °C < 18 °C or > 28 °C, related to the value for the refer-
ence temperature of 23° C.
5.1.19 The BENNING IT 101 is powered by four 1.5 V mignon batteries (IEC
LR6/ type AA).
As soon as the battery symbol
O is indicated, the batteries
must be replaced by new ones immediately in order to prevent
danger for persons due to incorrect measurements.
5.1.20 With new batteries the BENNING IT 101 can make approx.:
- 2600 low-resistance measurements (according to EN 61557-4)
[1 Ω, for a measuring duration of 5 sec.] or
-
1100 insulating resistance measurements (1000 V) (according to EN
61557-2) [1 MΩ, for 1000 V and a measuring duration of 5 sec.]
5.1.21 Appliance dimensions:
(L x B x H) = 200 x 85 x 40 mm without rubber protection frame
(L x B x H) = 207 x 95 x 52 mm with rubber protection frame
Appliance weight:
470 g without rubber protection frame
630 g with rubber protection frame
5.1.22 The safety measuring leads supplied are expressly suited for the rated
voltage and the rated current of the BENNING IT 101.
5.1.23 The BENNING IT 101 is protected by a rubber protection frame N
against mechanical damage. The rubber protection frame allows the
BENNING IT 101 to be set up or hung up during the measurements.
6. Ambient conditions
- The BENNING IT 101 is intended for making measurements in dry environ-
ment,
- Maximum barometric elevation for making measurements: 2000 m,
-
Overvoltage category/ setting category: IEC 61010-1 → 600 V category IV,
- Contamination class: 2,
- Protection class: IP 40 (DIN VDE 0470-1 IEC/ EN 60529)
IP 40 means: Protection against access to dangerous parts and protection
against solid impurities of a diameter > 1 mm, (4 - first index). No protection
against water, (0 - second index).
- EMC: EN 61326-1
- Operating temperature and relative humidity:
For operating temperatures from 0 °C to 30 °C: relative humidity less than 80 %
For operating temperatures from 31 °C to 40 °C: relative humidity less than 75 %
For operating temperatures from 41 °C to 50 °C: relative humidity less than 45 %
- Storage temperature: The BENNING IT 101 can be stored at any tempera-
ture within the range of - 20 °C to + 60 °C (relative humidity from 0 to 80 %).
The battery should be removed from the instrument for storage.
7. Electrical specifications
Note: The measuring accuracy 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).
The specified measuring accuracy is valid for temperatures within the range of
18 °C to 28 °C and for a relative humidity lower than 80 %.
7.1 Voltage measuring range (Switch setting V)
Measuring range Resolution Accuracy
600 V DC 0.1 V ± (1.0 % of the measured value + 5 digits)
600 V AC 0.1 V
± (1.5 % of the measured value + 5 digits)
in frequency range 50 Hz - 60 Hz
± (2.0 % of the measured value + 5 digits)
in frequency range 61 Hz - 500 Hz
600 V AC
with low-pass filter (LPF)
0.1 V
± (1.5 % of the measured value + 5 digits)
in frequency range 50 Hz - 60 Hz
± (5.0 % of the measured value + 5 digits)
in frequency range 61 Hz - 400 Hz
Optical warning in case of dangerous voltages of 30 V AC/ DC and more ()
Min. measuring voltage: 0.6 V (AC)
Overvoltage protection: 600 V RMS or DC
Limiting frequency of the low-pass filter (LPF): 1 kHz
Input impedance: 3 MΩ / less than 100 pF
… 22 …


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