Specifications
- Display
- 3½ digits
- Basic DC accuracy
- DC voltage ±(0.2% of reading + 0.1% of full scale)
- Power supply
- 220 V ±10%
- Power consumption
- 20 VA
- Dimensions
- 9 × 22 × 35 cm (H × W × D)
- Weight
- 3.5 kg
- Ranges
- DC 100 µV – 1000 V; AC 100 µV – 350 V; DC 100 nA – 2 A; 100 mΩ – 20 MΩ
- Frequency
- 40 Hz – 20 kHz (AC voltage)
- Function
- DC and AC voltage, DC current, resistance (the chapter text also lists AC current)
Description
The E0304 is a digital multimeter, made by IEMI in Bucharest and designed at the ICE research institute [1].
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 measures DC and AC voltage and current, and resistance [2]. IEMI’s production table lists 745 units made in 1982–1985 [2].
Its list price, set in 1983, was 24,000 lei [3].
Annex III.2.8 gives DC voltage from 100 µV to 1000 V, AC voltage from 100 µV to 350 V (40 Hz – 20 kHz), DC current from 100 nA to 2 A and resistance from 100 mΩ to 20 MΩ, with automatic polarity indication; unlike the chapter text, it lists no AC current measurement [4].
Gallery
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Schematics
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Documents
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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, 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
- [3]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex III.2.5 „Lista cu prețurile produselor – IEMI”, pp. 393–396
- [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