General view

E0401

IEMI · 1973–1977

Year
1973–1977
Decade
1970s
Category
Test & Measurement
Type
Voltmeters
Documentation score
2/5
Last edited
03 OCT 2026

Specifications

Function
DC and AC voltage, resistance
Measuring ranges
DC 1–1000 V full scale (7 ranges); AC 1–300 V (6 ranges); 2 Ω – 1000 MΩ
Frequency range
20 Hz – 200 MHz
Accuracy
voltage ±2.5% of full scale; resistance ±7% of reading
Input impedance
DC 100 MΩ; AC 1.5 MΩ ∥ 1.5 pF
Display
analogue meter
Power supply
220 V ±10%
Power consumption
16 VA
Dimensions
14 × 22 × 25 cm (H × W × D)
Weight
4 kg

Sources: [2][3]

Description

The E0401 is an electronic voltmeter, 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 in the 20 Hz – 200 MHz band [2]. IEMI’s production table lists 505 units made in 1973–1977 [2].

Annex III.2.8 gives DC voltage from 100 mV to 1000 V, AC voltage from 100 mV to 300 V and resistance from 2 Ω to 1000 MΩ, read on a pointer instrument [3].

Schematics

No schematics available yet.

Documents

No documents available yet.

References

  1. [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. [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. [3]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