Time Domain Reflectometers

TDR (time-domain reflectometer) cable fault locators are electronic instruments that locate faults in metallic cables (such as a twisted wire). They use time-domain reflectometry (reflection of sound waves) to detect issues in cables. TDR cable fault locators are commonly used to locate issues in a connector, printed circuit board, or other electrical paths.

How do TDR cable fault locators work?

TDR cable fault locators work by measuring the reflection of waves along a conductor. In order to measure the reflections, the TDR will transmit a signal to the conductor and listen for any reflected sound waves as they return. If the conductor is operating correctly there will be no reflection displayed on the screen of the cable fault locator and the incident signal of the cable will be discharged. If there are reflections present, then the signal will be reflected back to the TDR fault locator and diagnosed for errors that will be displayed on the screen.

When are TDR cable fault locators used?

TDR cable fault locators are commonly used for in-place testing of very long cable, where the length of cable to be tested makes them impractical to remove.


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Description Price Best Accuracy Maximum Range Minimum Pulse Width Pulse Amplitude Output Impedance Velocity Factor/Propagation Velocity Interface Type Battery Life Battery Type Height Length Minimum Operating Temperature Model Number p Weight
RS庫存編號 764-2825
製造零件編號1001-788
BrandMegger
HK$17,881.61
單位
- 5000m 4000ns 5V Pk-Pk 25 Ω, 50 Ω, 75 Ω, 100Ω 0.99 - 14 h AA 230mm 115mm -15°C TDR1000/3 600g
RS庫存編號 891-9769
製造零件編號1005-021
BrandMegger
HK$42,662.28
單位
±1 % 20000m - - 25 Ω, 50 Ω, 75 Ω, 100 Ω, 125 Ω, 140Ω 0.2 → 0.99 - 12 h Li-Ion 55mm 290mm -15°C TDR2050 1.7kg
RS庫存編號 891-9772
製造零件編號1007-077
BrandMegger
HK$32,542.91
單位
±1 % 20000m - - 25 Ω, 50 Ω, 75 Ω, 100 Ω, 125Ω 0.2 → 0.99 - 12 h Li-Ion 55mm 290mm -15°C TDR2010 1.7kg
RS庫存編號 764-2828
製造零件編號1001-789
BrandMegger
HK$12,602.21
單位
- 5000m 4000ns 5V Pk-Pk 25 Ω, 50 Ω, 75 Ω, 100Ω 0.99 - 14 h AA 230mm 115mm -15°C TDR1000/3P 600g
RS庫存編號 764-2834
製造零件編號1002-227
BrandMegger
HK$10,018.38
單位
±1 % 5000m 4000ns 5V Pk-Pk 25 Ω, 50 Ω, 75 Ω, 100Ω 0.99 - 14 h AA 230mm 115mm 15°C TDR500/3 600g
RS庫存編號 812-8929
製造零件編號1007-063
BrandMegger
HK$28,175.15
單位
±1 % 20000m - - 25 Ω, 50 Ω, 75 Ω, 100 Ω, 125Ω 0.99 USB 12 h Li-Ion 190mm 290mm -15°C TDR2000/3 EU 1.7kg
RS庫存編號 181-5019
製造零件編號1007-068
BrandMegger
HK$29,897.64
單位
±1 % 20000m - - 125Ω 0.2 → 0.99 USB 12 h Li-Ion 55mm 290mm -15°C TDR2000/3P 1.7kg
RS庫存編號 181-5018
製造零件編號1007-064
BrandMegger
HK$29,036.39
單位
±1 % 20000m - - 125Ω 0.2 → 0.99 USB 12 h Li-Ion 55mm 290mm -15°C TDR2000/3 1.7kg