M42100 ammeter, voltmeter M42100 (M 42300, M-42300; m 42100; m 42300; m-42300)
M42100 ammeter, voltmeter M42100 - appliances designed to measure current and voltage in electrical circuits alternating current.
Accuracy class - 1.5.
Overall dimensions - 80×80×50 mm.
Vibration, impact resistant, splash-proof.
Structural features M42100
Ammeters M42100 and voltmeters M42100 devices are available as an electromagnetic system.
Ammeters M42100 and voltmeters M42100 electromagnetic systems measure AC current and voltage directly to the electrical circuits. Apparatus M42100 electromagnetic system based on the interaction of the magnetic field of the measured current (current flowing through the coil), with one or more cores made of magnetic material.
On a design ammeter M42100 and voltmeter M42100 electromagnetic systems have two types of measurement mechanisms:
- A flat coil and a movable core of magnetic material is drawn into the gap of the planar coil when current is passed;
- A circular coil with two cores inside coil fixed and movable (one or two) that, when the measured current passing through the coil of like magnetized and repel each other, thereby the arrow, which is mounted on a moveable axis deviates.
Drawing instruments M42100 served in Figure 1., And overall dimensions - in Table 1.
Figure 1. Drawing devices such as M42100.
The connections and the scale value for the type of instruments M42100 served in Table 2.
M42100 devices are designed to work in both vertical and horizontal positions. Settling time the moving part is not more than 3 seconds.
Ammeters M42100 and voltmeters M42100 are designed for use in the following conditions:
- The ambient air temperature - from -50 ° C to +60 ° C%;
- Relative humidity 95% at +35 ° C.
Ammeter M42100 and voltmeter M42100 stand:
- Vibration acceleration of 5 m / s 2 - 30 m / s 2, the frequency of 10Hz - 70Hz;
- Hitting an acceleration of 70m / s 2, the frequency of attacks 10ud/min - 50ud/min.
Ammeter and voltmeter M42100 M42100 under the influence of an external magnetic field of 400 A / m allow the change of the readings - ± 1%.
Life more than 67500 hours. Ammeters M42100 and voltmeters M42100 are designed for trouble-free operation for 6 years.