Testboy 20 PLUS - Operation

Operation
26 Testboy
®
20 Plus
Operation
Thank you for choosing the Testboy
®
20 Plus. The Testboy
®
20 Plus represents the latest advancement in the popular
Testboy
®
2 series. It features six professional functions for
working with electrical cables and wires:
| Low-ohm, optical continuity testing
| High-ohm, acoustic continuity testing
| High-power LED flashlight
| Cable break detection
| Single-pole phase searching
| Protection from external voltages of up to 300 V
Optical continuity testing
Insert the test leads (as shown
in Figure 1a).
The large LED display will illu-
minate between 0 to 20 . The
intensity of the light decreases
proportionally after 10 .
If an unexpected voltage is ap-
plied to the object being meas-
ured, the
light will illuminate.
If a phase is active on one of
the wires being tested, the red
V~ LED will illuminate!
Figure 1a