auma-Explosion-proof-versions-AC - elemec-ci

Explosion-proof versions AC

Explosion-proof devices must be used in plants where potentially explosive atmospheres are likely to occur. These devices are designed so that they will not act as ignition source. Their constructive measures prevent the occurrence of ignition sparks or hot surfaces.

 

Certification is performed in close collaboration with national and international certification bodies.

 

With the ACExC a control with integral local controls is available for the multi-turn actuators SAEx/SAREx 07.2 – 16.2 and the part-turn actuators SQEx/SQREx 05.2 – 14.2.

Category:

Description

Design features

  • Modular interface concept for remote control
  • Local controls with lockable selector switch, push-buttons and indication lights
  • LCD display for status indication and programming support
  • Non-intrusive actuator setting and control programming (in connection with magnetic limit and torque transmitter MWG)
  • Separate mounting on wall bracket possible
  • Motor control via reversing contactors or thyristors
  • Automatic phase correction
  • External 24 VDC supply (option)

Ambient conditions

  • High enclosure protection
  • High quality corrosion protection
  • Wide ambient temperature ranges

Interfaces and features

  • Control inputs with different voltages (DC/AC)
  • Potential-free signal relays for status indication
  • Analogue control (0/4-20 mA)
  • Programmable stepping mode (for running time extension)
  • Freely definable intermediate positions
  • Process controller (PID)
  • Fieldbus control (Profibus DP/DPV1, Profinet, Modbus RTU, Modbus TCP, HART, Foundation Fieldbus, Wireless HART)
  • Fieldbus interface also available as component redundancy
  • Behaviour in emergency situations and during loss of communication (programmable)
  • Limit and torque as analogue Signal (in connection with magnetic limit and torque transmitter MWG)
  • Bluetooth interface to notebook and Android tablet
  • Functional safety: In selected configurations, safe end position feedback up to SIL 2 is possible

Interfaces

  • Electrical connection via AUMA plug/socket connector (optionally terminals)
  • Cable entries in different versions
  • FO connection for fieldbus Interfaces

Approvals

  • ATEX (Europe) Ex de IIC/IIB T4 or T3 Ex d IIC/IIB T4 or T3
  • IEC (international level) Ex de IIC/IIB T4 or T3 Ex d IIC/IIB T4 or T3
  • FM (USA) FM CLASS I DIV 1 GROUPS (B), C, D T4 (T3C) FM CLASS II DIV 1 GROUPS E, F, G T4 (T3C) FM CLASS III DIV 1 T4 (T3)
  • Russia – ROSTECHNADSOR/EAC (TR-CU) 1ExdeIICT4/T3 1ExdIICT4/T3
 

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