Thank you for your reply.You mean the medTester 5000C, is it a safety analyzer?
Or the DNI Nevada 5000B (see page 3-30 of the manual).
The medTester 5000 is (or at least,
was) a very handy piece of test equipment. At its core it permitted measurement of currents and resistances as they related to electrical safety. It allowed repetitive tasks to be automated using "autosequences" which could be customised. It could act as a portable data acquisition unit controlled by computer. With the right accessories (and a bit of imagination), it could almost "do everything" when it came to testing electromedical equipment - especially if you also had our old friend the Timeter RT-200.
In short, I would recommend that you add a medTester to your collection of antique biomed test equipment!