Benning it100 Bedienungsanleitung Seite 19
Vorschau ausblenden
Andere Handbücher für it100:
- Bedienungsanleitung (73 Seiten) ,
- Bedienungsanleitung (42 Seiten)
Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
- T o start the low voltage measurement, press the
pressed.
- T he
button can be released when an acoustic signal sounds to
indicate that the measured value is stable. The main display indicates the
resistance value of the low resistance measurement. The symbol "> 20 "
appears in the display if the measured value is greater than 20 .
- A fter completing the measurement, reverse the polarity of the test current
by swapping the red and black measuring cables at the measuring point.
- R epeat the measurement. The measurement result should be the same as
for the first measurement.
- T he purpose of the polarity reversal is to detect corroded contacts which
can cause different measurement results in the two measurements.
See Fig. 4:
Attention: The measurement result can be falsified by the
parallel connected impedance of additional working circuits
andbycirculatingcurrents!
8.4 Resistancemeasurementandcontinuitytesting
-
Make the circuit or test object voltage free.
- Select the desired function " " with the rotary switch .
- C onnect the black safety measuring cable to the negative socket (-) of the
B ENNING IT 100.
- C onnect the red safety measuring cable to the positive socket (+) of the
B ENNING IT 100.
- C onnect the safety measuring cables to the measuring point and take the
measurement reading in the display .
- I f an external voltage is present at the test prods, its magnitude is shown in
the display . If the magnitude of the external voltage is 30 V AC/ DC or
greater, a flashing warning symbol " " in the display and an acoustic signal
give additional warning that a dangerous external voltage is present. Make
the circuit voltage free and then repeat the measurement.
- The measured resistance value is shown in the display .
- T he internal buzzer of the BENNING IT 100 sounds if the resistance
value is less than 30 . The buzzer can be switched on and off with the
button .
- R esistance values greater than 2000 are indicated in the display as
"> 2000 ".
See Fig. 5:
Attention: The measurement result can be falsified by the
parallel connected impedance of additional working circuits
andbycirculatingcurrents!
8.5 V oltagemeasurements
-
Select the desired function "V
- C onnect the black safety measuring cable to the negative socket (-) of the
B ENNING IT 100.
- C onnect the red safety measuring cable to the positive socket (+) of the
B ENNING IT 100.
- C onnect the safety measuring cables to the measuring point and take the
measurement reading on the display .
Voltages greater than 1000 V are shown on the display as > 1000 V.
A flashing warning symbol " " appears in the display if the voltage read-
ing is 30 V AC/ DC or greater.
The BENNINGIT100 indicates either a DC (direct) voltage or
anAC (alternating) voltage. If the measured voltage has a DC
componentandanACcomponent,onlythecomponentwhich
hasthegreatermagnitudeisindicated.Themeasuredvaluefor
AC(alternating)voltagesisderivedbymeanvaluerectification
anddisplayedasr.m.s.value.
See Figs. 6a/ 6b:
8.6 C heckingthebatterycapacity
- Disconnect the safety measuring cables from the BENNING IT 100.
11/ 2006
Low voltage resistance measurement
Resistance measurement and continuity testing
Direct and alternating voltage measurements
BENNING IT 100
" with the rotary switch .
button and hold it
Werbung
Inhaltsverzeichnis
