Fluke Networks TS90 Cable Fault Finder

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Fluke Networks TS90 Cable Fault Finder

The Fluke Networks TS90 Cable Fault Finder is a diagnostic tool designed for quickly locating faults and breaks in metallic cables and wires. It’s highly useful for technicians working in telecommunications, network installations, and other fields requiring cable management and maintenance.

This user-friendly and affordably priced tester serves as three tools in one: a fault locator, a cable and wire manager, and a tone generator equipped with SmartTone technology. You can measure distances up to 2,500 feet (762 meters) from just ONE END of any cable with two or more conductors. Quickly and effortlessly determine the distance to opens or shorts in electrical wires, telephone wires, security wires, and coaxial cables.

Fluke Networks TS90 Key Features

  • Works on any two or more conductor cable up to 2,500 feet (762 meters)
  • Instantly measures distance to open or any fault from one end of any cable pair
  • Patented SmartTone® tone generator positively identifies pair
  • Measures cable distance on spool
  • Measures constantly while ‘on’
  • Displays distance reading rather than waveform
  • Large LED screen
  • High voltage detection
  • Moisture proof
  • One-button operation
  • Additional line cord options available for coaxial cable (F-connectors) and other applications

Fluke Networks TS90 Specifications

Specification CategorySpecification Details
Power of Operation4 AA alkaline batteries, providing 50 hours of use
Reverse Battery ProtectionNo damage occurs if batteries are installed backwards
Input ProtectionUp to 250 V rms ac, continuous or intermittent
Moisture ResistanceTester is water-resistant and suffers no damage from exposure
Impedance Range35 Ω to 330 Ω with auto-compensation; not accurate outside this range
Maximum Cable Length2500 feet on most cables; 500 feet on very lossy cables
Representative Maximum Cable Lengths2500 feet: CAT-5 Twisted Pair, 2000 feet: 12/2 ac Wire, 1000 feet: RG-6/U TV Coax, 500 feet: RG-174/U Coax
Minimum Cable LengthNo minimum, minimum non-zero reading is 2 feet
Length Accuracy±2 feet for <10 feet, ±5 feet for 10-200 feet, ±3% + 5 feet for >200 feet
High Voltage DetectionTriggers warning at >5 V rms
Measurement RateUp to 4 measurements per second, varies with cable type and length
VOP (Velocity of Propagation)Adjustable from -20 to -99, retained during power off, default -66 when batteries changed
Measurement TechnologyTime Domain Reflectometry (TDR) with 50 Ω drive impedance
Low Battery IndicatorFlashes when voltage falls below 4.1 V
Tone InjectionApprox. 1 kHz at 80% of battery voltage, variable frequency and cadence
Cable Type CompatibilitySuitable for almost all two or more conductor cables
Temperature RangeOperating: 32°F to 131°F (0°C to 55°C), Storage: -40°F to 158°F (-40°C to 70°C)
HumidityOperating: 0% to 80%, Storage: 0% to 100%
Weight1 lb (including batteries and clip leads)
Operating AltitudeMaximum 10,000 feet
Certifications and ComplianceConforms to EU directives, CAN/CSA-C22.2 No. 60950-1-03, CAN/CSA-C22.2 No. 1010.1-92, CSA-C22.2 No. 1010.1B-97, UL/ANSI 3111-1


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Fluke Networks

Fluke Networks

Fluke Networks is the worldwide leader in certification, troubleshooting, and installation tools for professionals who install and maintain critical network cabling infrastructure. From installing the most advanced data centers to restoring telephone service after a disaster, our combination of legendary reliability and unmatched performance ensure jobs are done efficiently. Fluke is a multi-national corporation headquartered in Everett, Washington, USA. Manufacturing centers are located in the USA, the UK, Asia, and The Netherlands.