Operation
Diode test
With the selector switch set to "
'COM' socket and the red test lead into the V/Ω/TEMP/CAP socket. Using
the test probes, touch the test points of the test object. Red test lead = an-
ode, black test lead = cathode. The forward voltage drop is displayed.
Measurement range
-Forward current: approx. 25 µA, reverse voltage: approx. 2.8 V.
Continuity testing
With the selector switch set to "
'COM' socket and the red test lead into the V/Ω/TEMP/CAP socket. Using
the test probes, touch the test points of the test circuit. An acoustic signal is
emitted if a resistance under 70 Ω is measured.
Important: Isolate from the power supply and discharge capacitors
in the circuit to be measured.
Measurement range
◦))
-Measuring voltage: approx. 2.8 V.
38
/ ◦))". Insert the black test lead into the
Resolution
Display
1 mV
Forward voltage
/ ◦))". Insert the black test lead into the
Function
The integrated buzzer signals up to a resistan-
ce of 70 Ω
®
Testboy
TB-313