Honeywell 30754919-501 Mother Board PCB Assembly for DR4500 Chart Recorder

The Honeywell 30754919-501 is a replacement mother board PCB assembly designed specifically for the DR4500 series circular chart recorders. This critical electronic component serves as the main control board for the microprocessor-based recording system, managing all data processing, input signal conditioning, and output control functions.

Key Features:

• OEM replacement motherboard assembly for DR4500 Truline and Classic series chart recorders
• Manages up to four input channels from thermocouples, RTDs, voltage, mV, and mA sensors
• Controls RS-485 Modbus communications interface
• Processes PID controller operations for process control applications
• Handles digital display functions and operator keypad interface
• Coordinates chart printing functions including trace generation and alphanumeric data
• PCB assembly kit includes necessary mounting hardware

This mother board assembly is essential for maintaining the operation of DR4500 circular chart recorders used in food processing, pharmaceutical manufacturing, heat treatment, environmental testing, wastewater treatment, and dairy pasteurization applications. The board enables the recorder's ability to accept multiple input types, process data with high accuracy, and communicate with external systems while maintaining critical process documentation requirements.