APPLICATION NOTE
Armada Technologies LLC
3596 76
th
St. SE Caledonia, MI 49316 USA
616-803-1080
January 2017
QUICK START GUIDE FOR THE Pro400 TDR
Turn the unit on by pressing the Power button.
Select the List Menu by pressing Range and Scan together.
In the list use the down arrow
▼key to move down the menu and ◄ and ► keys to select from the
choices.
Select TDR (rather than tone trace)
Select %Vc (Vp as a percent of light speed)
Pick a likely Vp from the chart (e.g., 67)
Select
Main 25Ω (solid power wire) or T/P 100Ω
Select Feet (rather than meters)
Choose a battery-saver shutdown time.
Exit the Menu by hitting the Range button.
Connect the TDR to a test cable at least 6 feet long, open at one end.
Launch a TDR pulse scan by pressing the Scan/Lock key.
To cause continuous scanning briefly press and hold the Scan ke
y.
Adjust the range scale to something close to the cable
length. This shows a 75-foot cable and a 180-foot range.
When testing to determine the Vp it is best to use at least
250 feet of cable for accuracy.
Observe the upward blip of an open circuit representing the
end of the cable.
MENU
POWER
Getting to the Menu list.
FIRE
POWER
Launching a scan.
