Continuity Test; True Rms; Maintenance; Cleaning - TESTBOY TB-3000 Bedienungsanleitung

Continuity test

Set the selector switch to measurement range 'Ω'. Insert the black test lead
into the 'COM' socket and the red test lead into the right-hand socket. Using
the button 'M', set the device to '◦))'. Using the test probes, touch the test
points of the test circuit. An acoustic signal is emitted if resistance below
50 Ω is measured. Read measurement value on the display.
Isolate from the power supply and discharge capacitors in the circuit
to be measured.
Continutiy test
Range
◦))
Measuring-circuit voltage: approx. 0.5 V.
Over-range protection: 600 V AC / DC < 30s.

True RMS

If measuring non-sinus wave forms, low measurement errors can occur if
using the True RMS function, in comparison to using traditional
measurement procedures.
Sinus-form and non-sinus form signals can be accurately measured using
the True RMS function.

Maintenance

The instrument does not require special maintenance when used as specified in
this operation manual.

Cleaning

Use a damp cloth and mild household cleaning agent to clean the instrument
should it become soiled through daily use. Never use aggressive cleaning
agents or solvents to clean the instrument.

Changing the battery

Change the battery when the battery symbol is displayed. Remove the test
leads from the measuring instrument before changing the battery!
®
Testboy TB-3000
Resolution
The integrated buzzer signals continuity up to 50 Ω
Operation
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