Design-configured controller DON-Turbo

Discrete input extension module

The module is used for galvanically isolated intrinsically safe connection of devices and sensors with a discrete output of the “dry contact” type, as well as data reception from instruments with a pulse (frequency) output.

Purpose:

The module is used for galvanically isolated intrinsically safe connection of devices and sensors with a discrete output of the “dry contact” type, as well as data reception from instruments with a pulse (frequency) output.

The input’s operation mode is configured as needed. Two modes are provided:

  • Level (for connection of “dry contact” sensors);
  • Counting (for receiving pulse\frequency signals).

Configurations:

Module configuration Number of inputs Galvanic isolation of inputs
MRD-4 4 no
MRD-8 8 no
MRD-4 with galvanic isolation 4 yes
MRD-8 with galvanic isolation 8 yes

Analogue input extension module

Purpose:

The module is used for a galvanically isolated spark-proof connection of devices and sensors with analogue outputs of the following types:

  • Current loop;
  • Potential output;
  • Resistive output.

The analogue-to-digital converter provides measurement of input quantities with the standard accuracy of ± 1%, or with increased accuracy of ±0.2%.

Configurations:

Module configuration Accuracy Number of inputs Galvanic isolation of inputs
MRA-2 ±1% 2 no
MRA-4 ±1% 4 no
MRA-2 with galvanic isolation ±1% 2 yes
MRA-4 with galvanic isolation ±1% 4 yes
MRA-2 increased acc. ±0.2% 2 no
MRA-4 increased acc. ±0.2% 4 no
MRA-2 increased acc., with galv. isolation ±0.2% 2 yes
MRA-4 increased acc., with galv. isolation ±0.2% 4 yes

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