16
7.7 Capacity ranges
Conditions: Discharge capacitors and apply according to the specified polar-
ity.
Overload protection for capacity measurements: 600 V
eff
Measuring range Resolution Meas. precision
6 nF 1 pF ± (1.9 % of the measured value + 8 digits)
60 nF 10 pF ± (1.9 % of the measured value + 8 digits)
600 nF 100 pF ± (1.9 % of the measured value + 8 digits)
6 µF 1 nF ± (1.9 % of the measured value + 8 digits)
60 µF 10 nF ± (1.9 % of the measured value + 8 digits)
600 µF 100 nF ± (1.9 % of the measured value + 8 digits)
6 mF 1 µF ± (1.9 % of the measured value + 8 digits)
7.8 Frequency ranges
Overload protection in the case of frequency measurements: 600 V
eff
Meas.
range
resolution Meas. precision for 5 V
eff
max.
Min.
sensitivity
6 kHz 1 Hz ± (0.01 % of the measuring value + 1 digit) 100 mV
eff
60 kHz 10 Hz ± (0.01 % of the measuring value + 1 digit) 100 mV
eff
600 kHz 100 Hz ± (0.01 % of the measuring value + 1 digit) 100 mV
eff
6 MHz 1 kHz ± (0.01 % of the measuring value + 1 digit) 250 mV
eff
60 MHz 10 kHz ± (0.01 % of the measuring value + 1 digit) 1 V
eff
The minimum sensitivity for frequencies below 20 Hz is 1.5 V
eff
.
8. Making measurements with the BENNING MM 8/ 9/ 10
8.1 Preparations for making measurements
Operate and store the BENNING MM 8/ 9/ 10 only at the specified storage and
operating temperatures conditions. Avoid continuous insulation.
- Check rated voltage and rated current details specified on the safety meas-
uring lines. The nominal voltage and current ratings of the safety measuring
cables included in the scope of delivery correspond to the ratings of the
BENNING MM 8/ 9/ 10.
- Check the insulation of the safety measuring cables. Discard the safety
measuring cables immediately if the insulation is damaged.
- Check safety measuring lines for continuity. If the conductor in the safety
measuring line is interrupted, the safety measuring line must be quaran-
tined immediately.
Before - at the rotary switch - a different function is selected, the safety
measuring lines must be disconnected from the measuring point.
- Strong sources of interference in the vicinity of the BENNING MM 8/ 9/ 10
can lead to unstable readings and measuring errors.
8.2 Voltage and current measurement
Do not exceed the maximum permitted voltage with respect to
earth potential! Electrical danger!
The highest voltage which may be applied to the jacks,
- COM jack
- jack for V, Ω, µA, , Hz
- jack for 10 A range (BENNING MM 9/ 10)
of the BENNING MM 8/ 9/ 10 against ground, amounts to 1000 V.
Electrical danger!
Maximum circuit voltage for a measured current of 500 V! In
the case of a safety triggering in excess of 500 V, damage to the
appliance may be caused. A damaged appliance may represent
an electrical hazard!
11/ 2006
BENNING MM 8/ 9/ 10
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