The Pulse ZT
Test Set is a self contained mains operated portable instrument intended primarily for measuring the screening effectiveness of coaxial connectors and cables. It can also be used for measuring the transfer characteristics components with losses up to 150dB. It operates in the time domain generating it's own disturbing pulse with a maximum amplitude of only 100mA, so reducing the risk of damaging the device on test. Read-out is by internal 8 x 10cm screen CRT with electronic graticule and on screen display of control settings to facilitate photographic recording of results. Digital storage eliminates flicker and provides before and after comparison of results. Vertical calibration is directly in Transfer Impedance (ZT
) adjustable by a 16 position switch from 200m Ohmn to 2µ Ohmn per division. Horizontal calibration is directly in time with a 4 position switch to enable selection of 10µS to 10nS per division. Any one of six internally stored limits can be displayed to facilitate go/ no go testing. A TDR facility enables validation of the device on test and provides a check of system vertical calibration.