The Honeywell 05704-A-0145 is a four-channel control card designed for industrial automation and monitoring applications. It processes 4-20mA input signals from sensors, providing real-time monitoring, control, and alarm functionalities. As part of the Zellweger System 57, this module is widely used in industrial process control, fire and gas detection, building automation, and ship automation. Its LCD display, LED indicators, and remote control capabilities enhance operational efficiency and safety.

General Information

• Model Number: 05704-A-0145
• Manufacturer: Honeywell
• Type: Four Channel Control Card
• Input Signal: 4-20mA (linear)

Power and Protection

• Supply Voltage: 18V to 32V DC
• Power Consumption: 7.5W (typical), 8.3W (maximum)
• Loop Powered Output Voltage: 24V ± 5% isolated, 25mA max
• Loop Protection: Short circuit protection, open circuit voltage ±50V

Signal and Measurement

• Measurement Signal Range: 0 to 25mA (linear)
• Maximum Line Resistance: 500 ohms (including sensor)
• Isolation Breakdown Voltage: More than ±50V DC to system 0V

Display and Controls

• Display: Backlit LCD with bar graph, peak reading, digital, and alphanumeric indicators
• Front Panel Indicators:
  • CH1-4 LEDs: A1, A2, A3, fault, inhibit (per channel)
  • Attention LED: Card fault, update alarm, alarm test
  • Power LED: Green (indicates power status)
• Push Button: Alarm reset / card selection
• Remote Functions: Inhibit and remote alarm reset

Environmental Conditions

• Operating Temperature: 0°C to 70°C
• Storage Temperature: -40°C to 85°C
• Humidity: 20% to 90% RH (non-condensing)

Physical Dimensions

• Height: 132 mm
• Width: 25 mm
• Depth: 172 mm
• Weight: 170 g