Current intensity indicator DMA-1

Reference: DMA-1, EAN13: 5908312592006

Product description

Digital. One phase indicator.
Current intensity indicator DMA-1 is used to continuous measurement the value of the current in a circuits of single-phase.

Functioning
* Measuring the effective value of current in electrical circuit.
* Measuring the circumference of the circuit is separated from the power indicator.
* Index marked TrueRMS fitted with a transducer gives the correct value of the effective value of current intensity at deformed runs.

Implementation
DMA indicators are intended for current transformers with a rated secondary current of 5A. The current range for these transformers is from 25 to 1000/5 A. The primary value of the transformer's current specifies the maximum measured current and the actual current value displayed by the indicator.
The DMA-20A and DMA-3 20A are intended for direct measurements (without transformers applied) within the range of 0÷20 A.

Order labeling method:

INDIRECT MEASUREMENT (with transformers applied)

DMA- X Y /5A Z

X
One phase: 1

Y
Primary value of the transformer's current :

25, 30, 40, 50, 70, 75, 80, 100, 120,
125, 150, 160, 200, 250, 300, 400,
500, 600, 700, 750, 800, 900, 1000.

Z
True RMS

Example:
* DMA-150/5A a one-phase device for 50/5A transformer, measurement range at 0÷50A, no TrueRMS;

DIRECT MEASUREMENT (without transformers)

X
One phase: 1

Z
True RMS

Example
* DMA-1 20A - one-phase device for 20A, measurement range 0÷20A, without TrueRMS
* DMA-1 20A TrueRMS - one-phase device for 20A, measurement range 3×0÷20A, with TrueRMS

Type	single-phase ammeter
Power supply voltage	100÷265 V AC
Display	3-digit LED (height digits 10 mm)
Power frequency	45÷55 Hz
Display range - direct measurement version	0 ÷ 20 A
Range of indications - intermediate measurement version	0 ÷primary current of the transformer
Accuracy of indications	1%
Maximum instantaneous overload	40 A (maximum to 1s)
Maximum current - direct measurement version	20 A
Maximum current - intermediate measurement version	5:00 AM
Terminal	pluggable terminal blocks 4,0 mm²
Tightening torque	0,5 Nm
Power consumption	4 W
Working temperature	-25 ÷ 50 °C
Dimensions	3 modules (52,5 mm)
Assembly	on rail 35 mm
Ingress Protection Marking	IP20