Explosion Proof Access Control and Management System

Description

Explosion-Proof Access Control and Management System

The explosion-proof access control and management system is designed for reading identifiers, performing identification, controlling an external actuator, and generating an electrical signal to a component of the automated process control system to provide subsequent notification to the control panel about authorized access to the controlled area.
The operating principle of the system is based on a contactless (radio-frequency) method of reading a code from an electronic identifier, followed by an automatic comparison of the read code with the set of authorized codes and issuing an electrical signal to the external device.
The system includes a power-saving mode with automatic transition. Exit from the power-saving mode occurs when the reader panel is touched with an identifier (card) or when a control signal is received from an external device.
The system can operate either in standalone mode or in networked mode.
Overall dimensions (excluding cable): 150 × 85 × 70 mm
Weight: 1 kg
Explosion protection marking: 1Ex ib [ia Ga] IIB T5 Gb X
Degree of dust and moisture protection: IP54
Operating temperature range: −40…+60 °C
Guaranteed identifier reading distance:
— at 128 kHz operating frequency: 2 cm
— at 13 MHz operating frequency: 2 cm
Number of internal memory cells for identifier list storage: 256
Number of internal memory cells (event log): 65,536
DC supply voltage range: 4.5…30 V
Average current consumption in power-saving mode: 15 µA
Average current consumption during data reading: 50 mA
Average electrical power consumption: 0.05 W
Open collector output parameters:
— maximum switching voltage: 30 V
— maximum switching current: 0.5 A
Maximum data exchange rate via RS-485 interface: 57,600 baud
Maximum communication line length for RS-485 (using STP/FTP twisted pair): 100 m
Type and number of input/output interfaces for external devices:
— Discrete “open collector” output for actuator control: 1
— Discrete “open collector” output for signaling: 1
— Discrete input for deactivation of power-saving mode: 1
— Wired communication interface RS-485: 1