Dual Range Tester – R18
The tracER - A dual range tester for
semiconductors and other components.
Introduction
The Electro resales tracER is a modern implementation of a testing device developed originally to assist
service professionals who had access to an oscilloscope with identification of component types and
possible non-working conditions of these same components. The circuit origin is thought to have been
from the US Military, but this is not certain. Original implementations involved cross connecting the
scope inputs to a low voltage AC source, via current limit resistors, this led to its name as ‘The Octopus’
tester, due to the tangle of wires this created.
This implementation tidies all these wires into a PC layout and minimizes the clutter. Two levels of
current limit are available via an on board switch the use of which is described herein.
Packing List (DRT + Cables & Power Pack Set)
Your purchase should include the following items:
1.
The Dual Range tester box (Known in this guide as the ‘DRT’)
2.
One set of red/black test leads – Banana to clips
3.
A pair of BNC – BNC cables
4.
110 V AC : 12 Volt AC Power Pack
5.
Link to these instructions
If the basic unit has been purchased only the Dual range tester box is included, no cables/Power Pack
Check the contents after opening the package and report any missing items or other issues immediately.
A note about Oscilloscopes
1.
The DRT is best used
with an analog scope (one with a CRT), it will also work with a digital
scope, the DRT has not been tested with any of the USB ‘scopes or other ‘scope types
such as those based on Arduino/PIC technology or those that require a computer to
function.
2.
The oscilloscope to be used in conjunction with the tester needs to be a 2 channel unit
with settings that allow it to be configured to work in XY mode.
3.
Most 2 channel scopes can be used, the higher the frequency response of the ‘scope,
the more versatile the testing, but a 5MHz unit is as good as a 100MHz unit.
Содержание tracER-A
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