Analog Panel Mili Amper Meter 0-1 mA made in USSR M2001/1 M1 Ammeter Vintage. Working, Tested in box.
M2001 / 1-M1
Ammeters and voltmeters М2001 / 1-М1 are designed to measure current in DC electrical circuits.
Switchboard devices М2001 / 1-М1 allow to measure currents within 0-1 mA with direct switching on.
For measurements of currents and voltages exceeding the specified limits, external shunts and additional resistances are used.
With an external 75 mV shunt and calibrated wires KP1-4 / 5, the current measurement range can be expanded to 7.5 kA.
With an external additional resistor with a rated current of 5 mA, the voltage measurement range can be extended to 3 kV.
DC devices can be manufactured with a zero mark at the beginning or in the middle of the scale.
The normal position of the instruments is vertical or horizontal.
Terms of Use:
- ambient temperature -40 ... + 60 ° С;
- relative humidity 95% at 35 ° С.
Average operating time to failure of devices: 35,000 hours.
Average service life of devices: 10 years.
Front panel dimensions: 60x60 mm.
Scale length: not less than 48 mm.
Accuracy class: 2.5.
Weight: 0.2 kg.
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