Honeywell 30756150-001 Chart Hub Assembly

The Honeywell 30756150-001 Chart Hub Assembly is a critical component for maintaining the mechanical integrity of circular chart recorders. Engineered for precise chart rotation and alignment, this chart hub kit is essential for field technicians servicing Honeywell DR4500 Classic, DR4300, and DR4200 Truline series recorders. For standard applications, the assembly allows for a simple press-fit installation directly onto the motor shaft, securing preprinted charts with standard center holes for reliable data logging.

In high-stakes industrial environments where regulatory compliance is mandatory, this assembly provides a tamper-proof recording configuration. By sliding the hub to the base of the motor shaft and engaging the integrated set screw, contractors can meet the rigorous security requirements of process inspectors and laboratory approval bodies. This dual-function design ensures that chart recorder accessories remain versatile enough for both routine monitoring and secure forensic data retention across HVACR and process control systems.

Technical Benefits:

• Universal Truline Compatibility: Seamlessly integrates with DR4200, DR4300, and DR4500 circular chart recorder models.
• Tamper-Resistant Security: Locking set screw mechanism prevents unauthorized chart removal or timing adjustments in validated processes.
• Precision Alignment: Engineered for small-diameter hub requirements to ensure ink pens maintain consistent contact with the chart paper surface.
• Industrial Durability: Rugged construction designed to withstand the vibration and continuous operation cycles common in mechanical rooms and manufacturing floors.

Common Questions:

Is the Honeywell 30756150-001 compatible with all Honeywell recorders?
This hub assembly is specifically designed for circular recorders including the DR4200, DR4300, and DR4500 series. Always verify the motor shaft diameter before installation on non-Truline legacy models.

How do I install this assembly for tamper-proof operation?
Unlike the standard push-on method, the tamper-proof setup requires sliding the hub to the bottom of the motor shaft and tightening the set screw to lock the assembly in place, preventing manual bypassed rotation.

What type of charts and pens should be used with this hub?
It is designed for use with preprinted circular charts and standard ink pen configurations. For high-accuracy reporting, ensure the chart center hole matches the hub diameter to prevent eccentric rotation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.