AEA Technology, Inc. E20/20 Quick Start Manual

Testing Made Simple!
AEA Technology, Inc.
E20/20 Step TDR & Avionics TDR
Versions 2.1
Quick Start Guide
This is a generalized Quick Start Guide and is applicable to all
versions of the E20/20 TDRs and Avionics TDR.
The E20/20 and Avionics TDRs are both "Step" Time Domain
Reflectometers. "Pulse" type TDRs send out single pulses on
the cable and listen for reflections from each pulse. A step
TDR sends a continuous wave in sweeps. The advantages
are no "dead zone" on any range, impedance data, faults in
actual Ohms, loop resistance, and an overall clearer trace of
faults and the cable's electrical end.
Before Starting
1. Charge the TDR using the AC wall adapter provided. If
not charged, the TDR can operate from the AC wall
adapter, DC Vehicle adapter, or using AA alkaline cells.
2. Check the cable's specifications for Impedance and
Velocity Factor (VF) (aka: VP, VoP, or NVP).
3. Select the cable type from the "PICK/EDIT LIST" under
the Cables Key or edit a cable type (Bcksp) close to
cable type to be tested and add the new cable to
the "PICK/EDIT LIST."
4. If you need help setting up the TDR for testing press the
at "Setup Wizard" and follow
Help key, then
the instructions.
Menu Navigation Guide
- Menu Cursor moves vertically with keys
- Enters/activates menu items marked by
Move through horizontal menu selections
0 – 9 – Used for alpha-numeric entries when required
ENTER – Use to accept a name or numeric entry
Bcksp – Use to delete a character or enter cable edit
ESC – Saves selections and exits to Measurement Screen or
exits back one menu level
AEA Technology, Inc.
5933 Sea Lion Pl, Ste 112
Carlsbad, CA 92010
1-800-258-7805 or +1-760-931-8979
www.aeatechnology.com
6021-3010 May 2016
Function Keys
Function keys activate when pressed, have a green LED lit
when active, and de-activate when pressed again. Some keys
automatically de-activate others to make the &
keys exclusive for their actions.
Range - Controls display range in set increments
10ft (2m) minimum to 20Kft (5Km) maximum.
Zoom - Controls zoom in/out range on the active
cursor. Each press doubles the zoom on the
cursor position until minimum range is reached.
Each press restores the range one level until
the original range setting is reached.
Z Scale - Controls the impedance scale in set
values. Minimum is +10 Ohms on Z ,
0
maximum is 1KOhms. At lower values the
Z setting will be kept vertically centered in display.
0
Crsr 1 & Crsr 2 - Control each cursor's position in the
display. Either cursor or both cursors can be used
at the same time. The last cursor key pressed
is the active cursor. The active cursor has its
data and the differential data for the other cursor
position displayed.
Tone – Activates a menu screen to select the desired tone
frequency (warble, steady, or pulsed). Use standard
inductive amplifiers (probes) to detect tones. For
"Pocket Toners" using DC volts to activate the toner
at the far end, the TDR will place 10VDC on the coax output.
Control & Alpha-Numeric Keys
ENTER – Saves and exits after name, number, or user
action entries.
ESC – Saves menu changes and exits to the
Measurement Screen or up one menu level.
Alpha-Numeric Keys – First press enters the number,
Repeated presses cycles through the
characters shown above the number. The
"0" key cycles to more characters than are
shown.
Bcksp – Erases the character to the left of the
character cursor position. When viewing a
table of items (Cables, Tones, etc) The
Bcksp key initiates the editor.