1205 CXA TDR
1205 CXA TDR
Time Domain Reflectometry (TDR)
TDR (time domain reflectometers) are often compared and referred to as “radar” devices for cables as they generate pulses and then measure the reflections that may follow. In the case of cables, these reflections come from impedance changes along the length of the cable. The impedance changes can be caused by the normal parts of a cable such as open ends, taps, joints/splices etc. but TDRs are also able to locate cable faults, such as open or shorts. In addition, less subtle, but equally as important abnormalities in the cable system, such as concentric neutral corrosion or degradation, moisture ingress etc. can be detected. Concentric neutral corrosion is a major problem particularly on unjacketed cables or when the neutrals of the cable are exposed to excessive moisture over time. The corrosion can lead to premature cable failures and / or cause touch potential risks. The TDR we offer have been customized to effectively focus on these more subtle abnormalities where most conventional TDR that are available, simply do not work or are not very effective.
We believe in providing a complete solution to our clients and the TDR compliments the other MV cable diagnostic tools, such as Tan Delta and Partial Discharge. We recommend that whenever possible and applicable, all cables should be TDR’d before performing a cable diagnostic or withstand test.
HV Diagnostics 1205 CXA Time Domain Reflectometry
The 1205 provides a rugged portable solution to locate cable abnormalities such as neutral corrosion, bad splices, shorts or open in the cable. With an easy to use menu driven display the TDR can be connected to a std. PC to download the stored TDR traces. Its advanced features provide a unique solution to detection both gross and subtle issues in a cable system.
Features:
- Adjustable Sub-ns pulse output.
- Rugged, water proof case
- Ease of use.
- PC connectivity
- Auto / Manual Range adjustment
- TDR trace storage
- Dual Independent Cursors
- Auto fault find
- Adjustable VOP in %, ft/uS or m/uS.
- Supplied PC based Software to download and analyze TDR traces
Specs:
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Physical Dimensions: Width: Height: Depth: Weight: |
10.5 inches / 267 mm 9.75 inches / 247.6 mm 5 inches / 127 mm 6 lbs / 2.7 kg |
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Power: Battery: Charging Source: Operating Time: |
Internal, rechargeable, 7.2V Nickel metal hydride External 12 VAC transformer, 1.3A Greater than 6 hours, continuous without backlight |
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Environment: Operating Temperature: Typical Temperature: Storage Temperature: Humidity: |
0°C to 50° C / 32°F to 122°F -15° C to +60° C / 5° F to +140° F -20°C to +60°C / -4° F to +140° F 95% maximum relative humidity, non-condensing |
| Display: | 320 x 240 dot-matrix, liquid crystal display (LCD) with cathode fluorescent (CFL) backlighting |
| Maximum Range: | 63,700 feet (19,400 meters) at .990 VOP 51,500 feet (15,500 meters) at .800 VOP Range varies with VOP. Maximum testable cable length varies with pulse width and cable type. |
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Horizontal Resolution: Up to 2,000 ft (610 m): |
Over 2,000 ft (610 m):< .05 ft (.03 m) at .990 VOP
< .02 ft (.01 m) at .300 VOP
1 ft. (.1 m) at any VOP Vertical Resolution:14 bits with 170 dots displayed Vertical Sensitivity: Greater than 65 dB Output Connector: Front panel Female BNC Input Protection:400 volts (AC + DC) from DC to 400 Hz and decreases to 10 volts at 1 MHz Distance Accuracy: Accuracy will vary with cable VOP and cable type. +/- .1 ft (.03 m) plus +/- .01% of reading Serial I/O Port:RS-232Output Pulses: Selectable output pulse widths Auto dBRL:2 digit auto return calculation at cursor setting Waveform Storage:
Standard
Optional Each with full vertical resolution
8 waveforms
32 waveforms
Note: Due to continuous development, the information may change without notice.
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