FIELD: computer technology. SUBSTANCE: device has random number detector, decoding unit, AND gate, stable frequency pulse generator, tuneable frequency divider, the first and the second reversible counters, the first and the second decoders, unit of commutators, the first and the second random voltage generators, the first and the second switch members, the first and the second groups of threshold members, the first, the second and the third OR gates, pulse former, NOT gate, flip-flop, indication unit, Process of recovery is modelled accounting for consumed time and probability of searching of trouble as well as accounting for reaction of test object to amount and intensity of work done. EFFECT: widened functional capabilities. 3 dwg
