Cable Fault Locator

Features :

• Direct Digital Distance Readout
• 4½ Digit LED Display
• Time Domain Reflectometry Technique
• Impulse Display on CRT
• ±1% Accurate
• 5 Km & Above Range
• Test any Type of Paired Conductor and
• Coaxial Cable
• Battery Powered, Light Weight
• Self Check Facility
• Low Batt Indication
• Built in Timer to Save Battery Energy
• Easy to Use
• High Voltage on Lead Indication
• Compares Good Pair & Faulty Pair

Description :

APLAB Model 3039-I cable fault locator is portable, rugged, simple to operate and which can taste, locate & display on the CRT the short & open type of faults in long run of coaxial and twisted pair in telephone and other communication application. It measures the distance to the faults, directly giving a digital readout. It also gives an insight into the joints, cable changes and faults aiding location of the fault.

Model 3039-I works on the principle of Time domain reflectometry (TDR) and locates cable faults upto an approximately distance of 5 Km & above with an accuracy of ±1%. The velocity of propagation (VOP) V/2 for each cable type is set on a three digit thumbwheel switch. It sends out an electrical narrow pulse of 35 to 1800ns width depending on distance to be coveredwith a fast rise time. The pulse is then reflected back to the unit from the cable impedence mismatch or the fault location. The distance of the fault is then computed automatically and indicated in meters or feets on a large LED display which will eliminate the manual calculations. Fault type is also identified by the graphic display of the shape of the reflected pulse. It is simpler to operate and less error prone than manual bridge technique.

It being light weight and portable can be carried on the field and can be operated for at least 8 hours on the internal rechargable batteries. Model 3039-I is provided with rechargeble batteries and an in built battery charger.

Features :

• Meets Current European PTT / TEC (India) Standards
• Time Domain Reflectometry Technique
• Direct Digital Readout in Meters
• 4½ Digit LCD Display
• Impulse Display on CRT
• Cursor Setting for Accurate Measurements
• ±1% Accurate
• Shortest Fault Location
• 10m - 10Km Ranges
• Built-in Battery Powered or Mains Operation
• Built-in Timer to Save Battery Energy
• Built-in Battery Charger
• Low-Batt Indication on LCD Display
• Tests any Type of Paired or Coaxial Telecom Cables
• Self Check Facility
• Test Modes Direct with Resistive Matching Pair Comparison L1/L2 Difference Coupling L1 - L2
• Easy to Use, Light Weight, Rugged,
• Portable with Carrying Case
• High Voltage on Lead Indication

Description :

The Cable Fault Locator Model 3049 is a portable field instrument working on the TDR principle and is designed to locate faults in unloaded telecommunication cables. It locates open and short circuits, series and shunt faults, split pairs and corrected splits, crosstalks and points of impedance change. The movement of the cursor to the fault position on the CRT display directly indicates the distance to the fault in meters on the LCD display.The instrument is designed to work on one line (L1), to compare L1 and L2 or to display the difference. Crosstalk points such as split pairs can be located by transmitting the pulse on L1 and receiving it on L2.

Item Code: CFL-01

Introduction :

METRAVI Brand Digital Cable Locator consists of aTtransmitter and a Receiver, which is a portable measurement instrument and can be used to detect or trace conductors and find Short faults in them.

The signal generated by the transmitter is made of a modulated current, generating an
electromagnetic field around a conductor. This electro-magnetic field induces a voltage within the receiving coil. The induced voltage is amplified, decoded, and converted to the original signal by the receiver and finally displayed on the screen. The connecting parameter for the transmitter during an application must be a closed current circuit.


Features :

• Finding conductors in walls, conductor interruptions, short circuit in conductors
• Conductor tracing in soil
• Detecting fuses assigning current circuits
• Tracing sockets and distribution sockets having accidently been covered by plastering
• Detecting interruptions and short circuits in floor heating
• Tracing metallic water and heating piping
• All application areas (both, voltage free and live) are performed without using any additional instrument
• Transmitter display indicates the transmission level, the transmission code, as well as the foreign voltage
• Receiver display indicates the reception level, the transmission code, as well as the mains voltage detection
• Automatic and manually adjustable sensitivity adjustment
• Acoustic reception signal may be switched off
• Auto Power Off
• Backlit display
• Additional lighting functions when working under bad lighting conditions
• Additional transmitters are available, as options, to extend or distinguish signals
• The built in fuses protect the instrument against overload or faulty manipulation