Specifications
- Outputs / interface
- parallel BCD, latched; start, read and data-valid lines for a microprocessor bus
Sources: [4]
Description
The E0308 is a digital panel voltmeter, made by IEMI in Bucharest and designed at the ICE research institute [1]. The minutes of its prototype approval, under contract 760/1983, give November 1984 as the deadline [2].
ICE’s laboratory for electronic instruments for measuring electrical quantities designed all the institute’s generations of oscilloscopes, voltmeters, multimeters, signal generators, frequency meters, logic analysers, RLC bridges and stabilised AC power supplies; they went into production at IEMI or in ICE’s own microproduction workshop, and equipped industrial laboratories and production lines as well as teaching and research laboratories [1]. In the 1970s and 1980s about half of the components of measuring instruments were imported; after 1980 about three quarters were Romanian [1].
It was meant for building into installations or systems, to measure any physical quantity first converted into a DC voltage [3]. IEMI’s production table lists 5 units made in 1985 [3].
Annex III.2.8 adds that its parallel BCD outputs, latched and separate, and its start, read and data-valid control lines let it be connected directly to a microprocessor system bus [4].
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Schematics
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References
- [1]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section II.4.1 „Laborator aparate electronice pentru măsurarea mărimilor electrice”, pp. 109–115
- [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex II.4.1 „Proces-verbal omologare prototip”, pp. 246–247
- [3]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, sections III.2 „Producția IEMI” and III.3 „Comentarii tehnico-economice”, pp. 302–317, and annex III.2.3 „Producția IEMI – aparate electronice de măsură și industriale”, pp. 383–386
- [4]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex III.2.8 „Voltmetre – multimetre – wattmetre”, pp. 618–627
