Seller: Testwall Ltd
Location: Ireland
Seller: Test Equipment Connection Corp.
Location: USA
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Seller: Alltest
Seller: Valuetronics International Inc
Seller: Liberty Test Equipment, Inc.
Seller: AccuSource Electronics
The rugged 1502B and 1503B cable testers are portable maintenance tools that are simple to operate and can test most dual conductor metallic cable under virtually any condition. The 1500B Series uses TDR to identify and locate cable faults. When the tester is connected to the line to be tested, it sends out electrical pulses that are reflected back to the tester by impedance changes in the cable. The 1500B Series TDRs display impedance changes in the cable as a function of distance. Moving the cursor to the displayed fault produces an on-screen readout of distance to the fault. The 1502B and 1503B support a variety of parameters and other information that can be accessed using menus.
The 1502B transmits 200 ps rise time step pulses down the cable under test. The reflected energy is displayed on the LCD and the type of fault can then be determined by the user. When testing 50 ohm cable with a velocity of propagation equal to 0.66, the 1502B Metallic TDR allows the determination of 0.5 ohm cable faults. Multiple faults as close together as 0.8 of an inch can be resolved.
The 1502B has a menu selectable ohms-at-cursor function that allows direct readout of impedances. The 1502B is matched to 50 ohm cables, but may be used on others by adjusting the front panel vertical scale control or using optional impedance adapters.
The 1502B has a range of 2000 feet and is the best MTDR for high resolution fault location on short lengths of cable.