Benning CM 2-1, Operating Manual

Page: 32 / 44

5.6 Continuity testing
Operation
5191 / 07/2021 en BENNING CM 2-1 32
5.6 Continuity testing
Requirements
• Please observe the requirements for measuring [ } page 26].
• Approved safety measuring lines
• Continuity test [
}
page 24]
• Please observe the figure for continuity testing. [ } page 31]
Procedure
1. Set the rotary switch of the device to switch position “ ”.
2. Connect the safety measuring lines to the device [
}
page 27].
3. Press the “AC HFR / DCA ZERO” key to set the desired “Continuity test” function (“ ”
symbol).
4. Bring the safety measuring lines into contact with the measuring points.
When the buzzer sounds (acoustic signal), the line resistance between the COM jack and
the “+” jack falls below the value of 20 to 200 Ω.
5.7 Capacitance measurement
Requirements
• Please observe the requirements for measuring [
}
page 26].
• Approved safety measuring lines
• Capacitance ranges [
}
page 25]
NOTICE
Capacitors not discharged
Measuring the capacitance at capacitors that are not fully discharged can damage the device.
• Discharge the capacitors completely before measuring the capacitance.
• Do not apply any voltage to the jacks of the device (“COM” and “+”) during the capacitance
measurement.
• Please observe the figure for capacitance measurement [
}
page 31].
Procedure
1. Set the rotary switch of the device to switch position “ ”.
2. Connect the safety measuring lines to the device [ } page 27].
3. Press the “AC HFR / DCA ZERO” key to set the desired “Capacitance measurement”
function (“n” symbol).
4. Bring the safety measuring lines into contact with the discharged capacitor – observing
correct polarity – and read the measured value on the digital display.