Arc Chaser: Short/Fault Locator Kit (SSTDR) – HJA-510-AC

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SKU: HJA-510-AC Categories: ,

Finds faults in conduit! Gives distance, use with a cable locator. 

• Works on both energized & de-energized cables.

• Quick, simple setup to identify & locate taps, shorts, & faults.

• Several modes for locating taps & faults.

• Save readings & transfer to PC for storage & printing.

• Customize cable settings & setup to meet your territory’s conditions.

Click here to see: Arc Chaser Tap Detector Brochure 



  • Arc Chaser main unit
  • T3 Leader Cable 5ft 600V CAT III
  • Flanged crocodile clips: red and black 600V CAT III UL/CSA
  • Dual banana to BNC female
  • Adapter:  BNC male to F female
  • Power Supply
  • SD Card
  • Micro USB Cable
  • Carabiner Strap
  • Protective Arc Chaser Case


Physical Features:

  • Color Touch Screen Display
    Easy to navigate in all lighting environments
  • Compact Form Factor
    Usable in tight space environments
  • 3rd Generation Rechargeable Lithium Ion Batteries
    8-10 hours of continuous use.
  • Benchtop, Handheld, or Hung Up
    Easy to use for field flight line and production work
  • Uses Modular Cable Interfaces
    Can connect to many different types of systems
  • Waterproof/Shock Resistant Transport Case
    Protects equipment in harsh conditions
  • SD Card for Data File Transfer of Cable Tests
    Easy to maintain report files and save for later viewing
  • Upgradeable Firmware
    Stay up to date with cable settings, features and enhanced software upgrades.


Measurement Technology Spread Spectrum Time Domain Reflectometry
U.S. Patents and Patents Pending
Power Wall power voltage input Range: 10→28V, 20W
Arc Chaser will run with wall power down to 4V, however batteries will not charge unless input voltage is greater than 10V.
Totex battery pack, with four LIO Rechargeable Cells.
Full screen brightness, dynamic test, 7.8V battery: 335mA.
0→100% brightness, @7.8V: 90mA
Typical battery current: 185mA
Low power mode (or timed out): 70mA;
Off mode: 420 μA board (+500uA battery pack circuitry.)
Maximum Range 12,000 ft (3,657m) at .999 VOP
Maximum testable cable length varies with VOP and cable type.
VOP (%) with 3 digit precision ranging from 20.0% to 99.9%
Output Connector Banana Jacks 600V CAT II
Leader Cable Cable Assembly, 5 ft. (1.5m) 600 Volt CAT III, 95 Ohm
Battery Life Battery Pack, initial 5200 mA-hr (typical):
Operating at static screen, or occasional static test: 185mA (assuming 65% LCD brightness)
Dynamic Operation : 280mA (assuming 65% LCD brightness)
Low power – 70mA, assuming full charge of 5000mAH, 71 hours.
Off – 420 μA board (+500uA battery pack circuitry.)
Altitude 6,500 ft (2,000 m)
Temperature Operating: (-10 if standard crystal) -20 to 70°C);
Storage:  (-30 to 80°C)
Humidity 10 to 90% non-condensing
Enclosure High-strength PC/ABS plastic with V0 rating with boot
Size 2.41”H x 4.18”W x 9.03”L (6.12 x 10.61 x 22.94 cm)
Weight With batteries: 1 lb 9 oz (862 g)
Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 No 61010-1-04, UL 6101B (2003) and IEC/EN 61010-1 2nd Edition for measurement Category III, 600 V, EMC EN61326-1
Warranty 1 Year



Q. What is the difference between SSTDR and TDR?
A. Please see the SSTDR vs. TDR difference here:
Q. What is the difference between the red and black banana jacks? 
A. The red banana jack is the SSTDR output. The black banana jack is the SSTDR return path. If testing a single wire but using a chassis or conduit as a return path, connect the red lead to the wire then the black lead to the chassis/conduit.
Q. What is VOP? 
A. VOP (Velocity of Propagation) is a measurement of how fast a signal travels over time.
Q. How do I determine a cable’s VOP?
A. You can discover the VOP of a cable by taking a known length of cable and select “Discover VOP” in the Fault Location Test Setup screen (see pg. 17 & 18 of the instruction manual for details).
Q. Why/When should I use the leader cable?
A. The leader cable should be used when not testing coaxial cables. The leader cable improves accuracy by continuing the Arc Chasers internal impedance while distancing the launch pulse from the connection to the cable under test. The Arc Chaser will calibrate the length of the leader when “Leader” is selected in Test Setup.
Q. Why do I get a 0ft reading or Error when I connect to a cable?
A. The test lead crocodile clips are separated too much, causing an impedance mismatch.
A. The Crocodile clips are not making connection with the leader cable. Make sure the leader cable is inserted into the crocodile clips all of the way.
A. The cable is connected to a terminated device on the other end that is absorbing the SSTDR reflection (like a 75Ohm terminator or resistor).
Q. What’s the difference between Fault Location and Live IFD?
A. The Fault Location (FL) test performs a single measurement to determine the distance to a fault. This test is also useful in determining the cable frequency and discovering VOP (see pgs. 16-19 of the instruction manual for details)
A. The Live IFD mode monitors the cable under test for intermittent faults. The Live IFD test will provide a distance to two fault locations at a time, fault type, and the fault count.  (see pgs. 21-23 of the instruction manual for details)
Q. What do the different frequencies do? How do I pick the right frequency?
A. The frequencies determine the length of cable to be tested. The Fault Location test will automatically discover and display the cable test frequency to be used for Live IFD testing.
Q. Why does the Arc Chaser use Frequency vs. Pulse Width?
A. Selecting a specific frequency limits the amount of power on the line for a given range.  This allows our TDR system to perform in noisy environments, so the cable can be monitored while power is on the cable.
Q. When connecting to an airframe or vehicle chassis, how do I determine my VOP?
A. This will vary depending on the type of wire being tested and the size of the airframe or vehicle. You can measure between connection points (like an outlet/break out box) to a console), connect the Arc Chaser to one end of the wire and the chassis, select Fault Location, Discover VOP, then enter the measured length. You can save this VOP for future use. Typically, an airframe and aircraft cable will have a VOP of +/- 58.
Q. What is the maximum voltage the Arc Chaser can connect to? 
A. The Arc Chaser is CATII rated and has internal protection up to 600V AC and DC. To avoid personal injury, do not exceed CATII voltages. (See instruction manual for specifications and warnings).
Q. If I connect to a cable with voltage, what range of Hz will the Arc Chaser work with? 
A. The Arc Chaser will work on voltage frequencies from 5Hz to 1000Hz.
Q. What are the Arc Chaser reporting formats?
A. The Arc Chaser can save test results as a PDF in Fault Location mode and also in Live IFD as PDF or CSV (excel).

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