• Full autoranging for measuring the length of power, telephony, CATV and LAN cables, provides distance to an open or short.
• Extra large, high resolution backlit LCD.
• Automatic output impedance control of 25, 50, 75, 100, 125 or 150 ohms.
• User-friendly menu on screen operation.
• Cable length calibration function.
• Internal library of 39 standard cable types.

The Megger TDR900 is an advanced instrument capable of measuring cable lengths and finding distance to an open or a short using Time Domain Reflectometry. It offers exceptional features and a range capability normally associated with far more expensive instruments. The measurement range spans from 15 feet (5 m) to 10,000 feet (3 km) with a minimum resolution of 20 inches (50 cm).

The TDR900 can be used for any cable consisting of at least two insulated metallic elements, one of which may be the sheath or shield of the cable. The Meter has automatic internal matching networks to allow testing of 25O, 50O, 75O, 100O, 125O, or 150O cables. (These correspond to power, telephony, CATV, and LAN cables.)

The Meter can be closely matched to the cable under test using the menu selection keys. The propagation velocity value can be similarly adjusted to match the cable under test; thus ensuring an accurate distance measurement.

The other user adjustable setting is changing the distance measurement units (feet or meters).
The Meter is housed in a rugged ABS enclosure which is dust and weatherproof to IP 42. The unit also comes with a soft carrying case and an alligator clip adapter. It is powered by 4 AA (NEDA 15A or NR 6) batteries, which are stored in a compartment on the back of the Meter. The batteries are held in a carrier for quick and easy replacement.

Standard accessories

Hand-held Time Domain Reflectometer/ Cable Length Meter TDR900

Included accessories

Alligator clip adapter

User manual

Soft carrying case

More products MEGGER

MEGGER DELTA4110 INSULATION POWER & DISSIPATION FACTOR TEST SET DELTA4000

• fully automatic 12 kV insulation power factor / dissipation factor (tan delta) test set
• Voltage: 25 V to 12 kV, 1 V resolution
• Current : 0 to 5 Amps, 0.1 µA maximum resolution
• Capacitance: 0 to 100 µF, 0.01 pF maximum resolution
• Inductance: 6 H to 10 MH, 0.1 mH maximum resolution
• Power factor PF : 0-100% (0-1), 0.001% maximum resolution
• Dissipation factor DF : 0-100 (0-10,000%), 0.001% maximum resolution
• Watt Loss: 0 to 2 kW
• Automatic and manual operation
• Accurate and repeatable measurement results with high noise suppression
• Lightweight, rugged two-piece design

MEGGER RCDT300 RCDT310 RCDT320 RCDT330 RCD TESTER FOR RESIDUAL CURRENTS

• Tests standard, DC, selective and programmable RCDs
• Ramp testing (RCDT320/330)
• Auto (Remote) testing (RCDT320/330)
• Three-phase safe

MEGGER MPRT2145 SINGLE PHASE RELAY TESTER

• Open communication architecture for third party software application
• Small, rugged, lightweight and powerful
• Operate with or without a computer
• Intuitive manual operation with Smart Touch View Interface
• High current, high power (60 amps/400 VA rms)
• Network interface provides IEC 61850 test capabilities
• Fully automated testing using AVTS software

MEGGER TDR2000/2 TDR CABLE REFLECTOMETER FAULT LOCATOR TDR2000/2RM TDR2000/2R

• 20 km range at VF = 0.90
• Monochrome or colour options
• Primary cell or rechargeable options
• Large back lit LCD Display
• Dual cursor measurement
• Intermittent fault location
• Output pulse amplitude and width control
• Trace Master PC software included
• IP54 Rating
• 2 year Warranty

SMART PRIMARY INJECTION TEST SYSTEM MEGGER SPI225

• Up to 2000A output
• Smallest primary injection test system in its class
• First unit on the market to eliminate variac control
• Output current regulation
• Designed for switchgear commissioning, circuit breaker, CT commissioning, ground grid and relay testing
• Software includes thousands of circuit breaker TCC curves

MEGGER GOOSER IEC 61850 RELAY TESTER

• Reliable testing of IEC61850 relays using a conventional relay test set
• Separate Ethernet ports for the substation LAN and the controlling PC forming a Safe Substation Bus Access Point
• Seamless interaction between SCL GOOSE and GOOSE "sniffing"
• GOOSE merge - SCL GOOSE vs captured GOOSE for network troubleshooting and SCD file validation at FAT
• Stand alone functionality - Download a configuration and run

MEGGER TTRU1 TRANSFORMER TURN RATIO TESTER

• Battery operated with USB-C rechargeablenAA NiMH batteries included
• Pass/Fail ratio evaluation
• Automatic results storage
• USB drive save and export
• Full colour Hi-bright LCD screen
• Additive / Subtractive polarity detection
• Excitation current

INSTRUMENT TEST BOX MEGGER - MTB7671/2

• The only one that fully tests your instruments to the regs.
• Tests the full range of your tester½s capability not just what½s easy
• Won½t trip RCD protected circuits
• Checks insulation, continuity, loop and RCD functions of testers
• Works with all testers for Part P Certification

MULTIFUNCTION INSTALLATION TESTERS MEGGER - MFT1735

• Two and three wire non-trip loop testing for RCD protected circuits
• Type-B RCD and 3-phase RCD testing for industrial applications with no Earth
• 3-terminal earth test and stakeless testing for earth electrode resistance measurement **
• Internal memory and Bluetooth® communications

MEGGER DET2/3 HIGH RESOLUTION ACCURACY EARTH TEST SET

• High resolution of 1 mΩ, ideal for large earth systems
• Versatile tests modes
• High accuracy for earth/ground electrode grid and soil resistivity tests
• Rechargeable battery power that can last all day with a fast re-charge (up to 10 hours)
• Robust instrument with IP65 protection
• Automatic test frequency selection, with filters and high current features
• Diagnostic trace display
• Data storage
• Large colour display that shows numeric and graphical results