Environmental Conditions; Electrical Specifications - Benning IT 100 Bedienungsanleitung

if only one segment or none is displayed. The battery symbol appears
during operation and in the case of further falling voltage only when the
switch is actuated (see also Section 7.5 and Section 8.6).
Replace the batteries immediately with fresh ones when all

segments of the battery symbol are extinguished, to avoid
endangering persons by false measurements.
5.1.16 With fresh batteries the BENNING IT 100 can make about:
- 6000 insulation resistance measurements (250 V) or
- 5000 insulation resistance measurements (500 V) or
- 3500 insulation resistance measurements (1000 V)
(according to EN 61557-2), or
- 4000 low resistance measurements (according to EN 61557-4).
5.1.17 Dimensions of the instrument (L x W x H) = 235 x 100 x 55 mm
6.

Environmental conditions

- The BENNING IT 100 is intended for making measurements in dry environ-
ments.
- Maximum barometric elevation for making measurements: 2000 m.
- Overvoltage category IEC 60664/ IEC 61010, 600 V category III, 1000 V
category II
- Contamination degree 2 according to EN 61010-1
- Protective system IP 40 (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).
- Electromagnetic compatibility (EMC): Interference immunity and emitted
interference conforming to EN 61326-1
- Operating temperature and relative humidity:
For operating temperature from 0 °C to 31 °C: relative humidity less than 95 %
For operating temperature from 31 °C to 40 °C: relative humidity less than 75 %
For operating temperature from 40 °C to 50 °C: relative humidity less than 45 %
- Storage temperature: The BENNING IT 100 can be stored at any tempera-
ture in the range from - 25 °C to + 65 °C (relative humidity up to 90 %). The
batteries should be taken out of 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 in the range from 10
°C to 30 °C and relative humidity less than 90 %.
7.1 Insulation resistance measuring ranges
(switch setting MΩ, 250 V/ 500 V/ 1000 V)
Measuring range
2 MΩ
20 MΩ
200 MΩ
2000 MΩ
The indicated measuring accuracy is specified for the following insulation resis-
tance values and depends on the test voltage:
Test voltage
Analog bargraph display: 0 to 1 G and infinity
Accuracy:
Test voltages:
Accuracy:
Test current:
11/ 2004
Resolution
0,01 MΩ
0,1 MΩ
1 MΩ
10 MΩ
250 V
500 V
1000 V
10 %
250 V, 500 V, 1000 V
+ 20 %, - 0 %
1 mA
BENNING IT 100
Accuracy
2 % ± 2 digits
2 % ± 2 digits
2 % ± 2 digits
6 % ± 2 digits
range
0,25 MΩ - 1000 MΩ
0,5 MΩ - 2000 MΩ
1 MΩ - 2000 MΩ

Overload protection
1000 V AC/ DC
1000 V AC/ DC
1000 V AC/ DC
1000 V AC/ DC
13