Telco FVD Test Plug (Telco)
Test Plug for use with FVD.
Using the 193A Test Plug
A. Press and hold the FVD power switch and touch the FVD probe tip to the contact point of the test plug that is plugged into an electrical wall outlet (120V).
B. The test plug should activate the audible alarm and cause 6 or 7 steps of the bar graph to illuminate.
C. If the alarm fails to activate when testing with the test plug, replace the FVD.