SEBAKMT UK - Suppliers of Location, Survey and Fault Finding Equipment

Telecom

Sunday, February 11, 2007

Telecom Systems

TDR and Tone Generator for Cable Fault Locating

The TDR Microflex is a professional Time Domain Reflectometer and Audio Frequency Generator designed to detect and locate faults on power cables and copper communication cables up to a distance of 3500m (11,500ft). Advanced signal processing techniques enable the TDR Microflex to find opens, short circuits, splices, taps, water ingress and other more elusive impedance mismatches. A built-in oscillator also provides an audio frequency tone for pair tracing and identification. Selectable cable impedance matching, along with variable velocity factor, enable the TDR Microflex to be used to test power and communication cables, including twisted pair and coaxial, with graphical results and fault distances displayed on a backlit 64 x 128 pixel LCD.

The TDR/Tone-Generator is housed in a tough, rugged ABS plastic moulding, water and dust proof and supplied complete with test leads and a protective tool-belt holster. The TDR Microflex is designed and manufactured to international standards for quality, safety and reliability.

Performance Characteristics:

Low Cost Full Specification Professional Graphical TDR
Rugged Palm-Top design weighs less than 350g (12oz)
Measurement Ranges up to 3500m (11,500ft)
50, 75 & 100 Ohm Selectable Cable Impedance
Built in Audio Frequency Generator for pair tracing and identification
Suitable for testing power and communication cables
Water and dust proof to IP54
Complete with tool-belt holster and test leads

Technical Data

Range:	220, 440, 870, 1750 & 3500m 720, 1440, 2850, 5740 & 11500ft
Range Selection:	Automatic range control
Resolution:	Approximately 1% of range
Accuracy:	1% of measurement range *
Velocity Factor:	Adjustable from 1% to 99% Adjustable from 2,5 to 148,5 m/µs
Output Pulse:	5v p-p into open circuit
Output Impedance:	Selectable 50, 75 & 100 ohms
Output Pulse Width:	25ns min. 1.6us max.
Scan Rate:	6.7 scans per second
Tone Generator:	Oscillating 810 - 1110Hz
Auto Power Down:	3 minutes
Power Supply:	4 x AA cells
Backlit Display:	64 x 128 pixel
Voltage Withstand Protection:	250VAC
Sensitivity:	min. 3 pixel return at 2km (6 kft)
Operating Temperature:	0° C … +40° C
Storage Temperature:	-20° C … +70° C
Safety:	EC61010-1; EN 60950
EMC:	BS/EN 61326-1
Water / Dust Proof:	IP54
Dimensions:	165 x 90 x 37mm
Weight:	350 g (12 oz)