Siemens - PolyGard®-2 Sensorboard Siemens - PolyGard®-2 Sensorboard
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The Siemens PolyGard®-2 Sensorboard is a powerful warning and sensor board designed for precise gas detection and monitoring. With features like RS-485 interface, 4–20 mA output, alarm relay, and the ability to integrate sensor series SC2, MC2, or SSAX1-1, this versatile board is perfect for use with the DGC-06 system or in standalone operation.

Key Features:

  • Digital Precision: The Sensorboard excels in digital measurement value processing, complete with temperature compensation for accurate readings.

  • Internal Control: With an integrated Hardware Watchdog, the Sensorboard ensures robust functionality and reliability.

  • Modular Flexibility: Connect up to three different sensors of the SC2 series using the local bus. You can also opt for one analog sensor of the MC2 series instead of one SC2. Alternatively, integrate 2x SC2 of the same gas type or connect one ATEX-compliant SSAX1-1 (zone 1) sensor, offering adaptability to your specific needs.

  • Safety Compliant: Both the hardware and software adhere to SIL compliant development processes, meeting high safety standards.

  • User-Friendly: Maintenance and calibration are hassle-free, whether you choose to exchange the sensor or perform on-site calibration.

  • Durable Design: The Sensorboard features an IP65 version, providing excellent protection in various environments.

  • Communication Options: The Sensorboard offers a Serial RS-485 interface with DGC-06 protocol, making it ideal for communication with the DGC-06 controller or Modbus.

  • Reliable Outputs: The Sensorboard is equipped with an analog output signal and alarm relays for added convenience and functionality.

Specifications:

  • Power Supply: 24 V DC (reverse polarity protected) or 24 V AC (with variations)
  • Power Consumption: Max. 250 mA (24 V DC)
  • Alarm/Fault Relays: 30 V AC/DC, 0.5 A, potential-free change-over contact (SPDT)
  • Analog Input: 4–20 mA, overload and short-circuit proof, input resistance 130 Ω
  • Power Supply for MC2 Analog Sensor: 24 V DC, max. 100 mA
  • Digital Input: Potential-free contact for acknowledgment function
  • Serial Interface: RS-485, Modbus Protocol RTU RS-485
  • Ambient Conditions: Operating temperature from -30°C to +60°C, humidity range of 15–90% RH (not condensing)

Physical Specifications:

  • Housing Types: A, C, E (Polycarbonate)
  • Housing Color: RAL 7032 (light grey)
  • Dimensions: Vary by housing type
  • Weight: Approximately 0.3 kg (0.7 lb)
  • Protection Class: NEMA 4X (IP65)

Installation: Wall mounting with suitable cable entry options

Part Number:
SB2-A-20020000 PolyGard®-2 Sensorboard 24VDC IP65
SC2-E1110-C PolyGard®-2 CO Electrochemical Sensor Cartridge 0-150 ppm
SC2-E1130-B PolyGard®-2 NO2 Electrochemical Sensor Cartridge 0-20 ppm

Frequently Bought Together

Total price $937.00