User guide

7
KEYPAD
N
O
P
Q
R
S
M
M
Up/Down
•
In Calibration Mode: the buttons are used to adjust the
measured cable length to match the known cable length
within the range of 25ft to 1000ft (10m to 300m).
•
In Tone Mode: the buttons select a cadence (HI, LO, HL1,
HL2).
N
Memory
The Memory button is used to store up to two NVP values
for testing purposes.
•
Short presses of the Memory button toggles between the
two memory storage locations: M1 and M2.
•
A long press (two seconds) of the button stores an NVP
value in the selected storage location.
O
+
A long press (two seconds) of the Memory and Calibration
buttons simultaneously toggles between units of
measurement (feet and meters).
P
Calibration
The Calibration button allows you to discover the NVP
value based on an inputted cable length.
•
Short presses of the Calibration button adjust cable
length in increments of 50ft or 20m within the range of
50ft to 1,000ft or 20m to 300m.
•
A long press (two seconds) of the Calibration button
aborts Calibration mode and enters Test Mode.
Q
Test
The Test button initiates length testing on the connected cable.
•
A short press runs a single test on demand.
•
A long press (two seconds) of the button starts loop
testing. Pressing any button (except Power) stops loop
testing (or the unit turns off after 3 minutes).
R
Tone
The Tone button allows you to trace cables by sound.
•
A short press of the button transmits an audio tone from
the unit through the connected cable.
•
Subsequent presses of the Tone button toggle between
Test and Tone modes.
•
An analog tone probe (not included) must be used in
order to hear the tone.
S
Power
•
A long press (two seconds) of the Power button powers
on the
Ranger™ TDR.
•
Subsequent presses of the button toggle the backlight on and off.
•
A long press (two seconds) of the button powers off the
Ranger™ TDR.