Wireless Anti-Two-Block System

Scale and Control Inc. offers the wireless Rayco-Wylie R147 Wireless A2B System, which includes the R147 Anti-Two-Block Display and Switch. Effective and easy to install, this system triggers an audio-visual alarm in the event of the crane's hook block coming close to the boom tip, helping prevent damage to the crane and its load.

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RAYCO-WYLIE R147 ANTI-TWO-BLOCK SYSTEM

Features and benefits:
  • Direct Sequence Spread Spectrum transmission technology for an enhanced range of operation and better RFI resistance (2.4 GHz Transceivers)
  • Internal antenna on both the display and sensor for low susceptibility to damage and less downtime
  • Display and switch pre-calibrated by the manufacturer
  • Display can monitor up to two switches
  • Easy installation and sensor replacement
  • Uses standard AA lithium batteries
  • Up to 1 year battery life (low battery warning)
  • User-friendly display
  • Audible and visual warning in case of two-block
  • Operating range: - Outdoor / line of sight 1 mile - Indoor / Urban 400 feet
  • CE, OSHA and FCC Compliant
  • Stainless steel model option available

Technical Data:
  • Display Size: 4.69" x 3.13" x 2.13"
  • Display & Sensor Sealing: IP67 rating for display and sensor
  • Supply Voltage: 12 to 24 VDC (Max: 10.2 to 30 VDC)
  • Operating Temperature: -4°F to 158°F (-20°C to 70°C)
  • Digital Output: External motion cut relay or alarm (max 500mA)
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