39B554 Variable Space In-Circuit Probe
Adjustable In-Circuit Test Probe (39B554) - Exclusive in-circuit probe with width adjustment wheel and test activation switch. Connect to TEST LEAD jack.
The In-Circuit Test Probe was designed to test as many components in-circuit as possible. The spacing width is adjusted using the knurled wheel. A test activation switch is molded into the probe to make in-circuit testing easier. When a COMPONENT TYPE is selected, pressing the activation switch activates the In-Circuit Capacitor or Inductor test depending on COMPONENT TYPE selection. If no COMPONENT TYPE is selected the LC103 will display an error message stating that you need to enter the type of component under test.
WARNING: Always remove AC power from the circuit when performing any of the LC103s In-Circuit test functions. Failure to do so may result in a shock hazard and damage to the test instrument.
The test activation button only activates the in-circuit tests, it will not activate any of the out-of-circuit test functions. When an in-circuit test is activated by the test activation button on the probe, the LC103 will display the results for 3 seconds after the button is released. This allows for component testing without having to look away from the circuit. In addition, a short beep will be heard once the LC103 has finished the first complete measurement.
Test lead is made from special low capacity coaxial cable