Опис
The devices are designed to measure the strength of direct current in electric circuits.
Shields of the magnetoelectric system with an arrow pointer with the mounting of the moving part on the cores.
Measuring range from 500 µA to 10 A, 75 mV.Accuracy class – 1.5; 2.5; 4.
Overall dimensions, no more than 80 mm x 80 mm x 70 mm.
The working position is vertical, horizontal (depending on the order).
Name, type, measurement range, accuracy class are listed below:
| Name | Accuracy class | Measuring range |
| Microammeter | 1,5; 2,5; 4 | from 500 µA (250–0–250) µA
up to 800 µA (400–0–400) µA |
| Milliammeter | 2,5; 4 | from 1 mA (500–0–500) µA
up to 800 mA (400–0–400) mA |
| Ammeter | 2,5; 4 | from 1 (0.5–0–0.5) A
up to 10 A (5–0–5) A and 75 (75–0–75) mV for use with external shunt |
* Final intermediate values of measurement ranges according to DSTU EN 60051.
** The accuracy class of devices with a measurement range of 0-75 (75-0-75) mV does not take into account the accuracy class of the used measuring shunt.
The shunt must be connected to the device using calibrated conductors with a total resistance of 0.035 Ω±10%.
The overall dimensions, length of the scale and weight of the devices are given below:
| Overall dimensions, mm | The length of the scale, not less, mm | Mass, no more, kg |
| 80 х 80 х 70 | 55 | 0,2 |
The time to set up impressions is 4 seconds.
Operating conditions of the device:
– ambient air temperature from minus 50 ºС to plus 60 ºС;
– relative air humidity up to 98% at a temperature of 35 ºС.
The devices are installed in the shield, the marking of the shield (front view) is shown in the figure.
