N2801

The N2801 is an electronic profilometer for surface roughness, listed in the 1st edition of the Agenda radioelectronistului (1983) among the instruments of IEMI and ICSITE in Bucharest [1].

The 1st edition of the Agenda radioelectronistului (1983) lists the „N-2801” („Profilometru electronic”, electronic profilometer) among the electronic instruments for measuring non-electrical quantities of the N-21…N-29 groups, whose producers it gives as „I.E.M.I., I.C.S.I.T.E.” (Bucharest); it does not say which of the two made it; a note says that with a differential inductive transducer it measures the surface finish (the Ra value) [1]. Its table gives an Ra range of 0…10² µm, a 220 V (+10 %…−15 %) supply, at most 22 VA, an ambient temperature range of +5…+40 °C, 13.7 × 26.4 × 24.2 cm (height × width × depth) and at most 5 kg [1].