The voltage drop in the milliammeter circuit is ≤600mV.

Settling time of the moving part of the voltmeter M4203 - ≤3s.

Working position - vertical or horizontal.

Change in instrument readings voltmeter M4203,  caused by ambient temperature deviation from 20ºС ±5°С (within operating temperatures), does not exceed  ±1.2% for accuracy class 2.5 for every 10 deg.

     The change in the readings of the device does not exceed ±0.5% with the most unfavorable direction of the magnetic field with a strength of 400 A / m and when the device is installed on a ferromagnetic shield, as well as under the influence of the same device placed close to it.