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SR715 and SR720 LCR Meters

Simple to Operate nested) bins have one nominal value and are sorted into progressively larger bins (e.g., ±1 %, ±2 %, ±3 %). Sequential bins can have different nominal values, each separated by a percentage or a nominal value and asymmetrical limits. Binning parameters are also easily stored in non-volatile RAM for quick setup in production environments. The power and flexibility of the SR715/720 does not come atthe expense of ease-of-use. Aconvenient AUTO measurement mode automates the selection of setup parameters and quicklydetermines the appropriate device model for whatevercomponent is being measured. Up to nine instrument setups can be stored in non-volatile memory for quick recall at a later time. Test Fixtures The SR715 and SR720 have a kelvin fixture which uses twowires to carry the test current and two independent wires to sense the voltage across the device under test. This prevents the voltage drop in the current carrying wires from affecting the voltage measurement. Radial components are simply inserted into the test fixture, one lead in each side. Axialdevices require the use of the axial fixture adapters (provided).Surface-mount devices, or components with large or unusually shaped leads, can be measured with optional SMD Tweezers (SR727) or Kelvin Clips (SR726). The tweezers and clips attach directly to the LCR meter’s front-panel test fixture. An optional BNC Fixture Adapter (SR728) allows you to connect a remote fixture or other equipment through one meter of coaxial cable. Rear Panel Two rear-panel input connections are provided for an externalbias voltage. Voltages as high as 40 VDC can be used. An optional handler interface provides control lines to a component handler for sorting. Astandard RS-232 interface allows complete control of all instrument functions by a remote computer. AGPIB interface is included with the handler option. Convenient Calibration The SR715 and SR720 make it simple to compensate for leadimpedance and stray fixture and cable capacitance. The null calibration procedure automatically corrects both open and short circuit parameters at all frequencies and all ranges. Binning SR728 BNC Adapter The SR715 and SR720 have built-in features to aid incomponent sorting. This is especially useful for production testing, incoming inspection, device matching, or when you need to test multiple devices of similar value. The meters allow you to sort components into as many as ten different bins. The SR715 and SR720 support three types of binningschemes: pass/fail, overlapping and sequential. Pass/fail hasonly two bins: good parts and everything else. Overlapping (or SR727 Surface Mount Tweezers SR726 Kelvin Clips SR715/SR720 rear panel (with opt. 01)

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