Product Details
The Foxboro P0972QR, also cataloged as the P0972QR Termination Assembly Module, operates as a dedicated hardware component for mixed analog and digital signal routing within Foxboro I/A Series system enclosures. The module conditions 32 channels across voltage ranges of -40 VDC to +80 VDC and current ranges of -20 mA to +20 mA, interfacing field sensors, thermocouples, and RTDs directly to processing backplanes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | P0972QR |
| Brand | Foxboro |
| Origin | USA |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Passive termination assembly (0 W) |
| Channel Count | 32 channels |
| Signal Types | Analog and digital I/O |
| Current Range | -20 mA to +20 mA |
| Voltage Range | -40 VDC to +80 VDC |
| Measurement Accuracy | +-0.1% |
| Isolation Voltage | 2,000 V RMS |
| Operating Humidity | 0% to 95% RH (non-condensing) |
Cold Junction Compensation and DCS Signal Conditioning
The Foxboro P0972QR maintains signal integrity across its 32 field channels through integrated 2,000 V RMS isolation barriers. Internal terminal compensation networks support direct connection of thermocouples and RTDs, providing uniform thermal referencing required for cold junction compensation (CJC) circuits while suppressing common-mode noise on connected 4-20 mA HART loop protocol lines.
Frequently Asked Questions
Q: What isolation voltage is maintained between field wiring and system logic on the P0972QR?
A: The module provides 2,000 V RMS isolation between the field terminals and system processing electronics.
Q: What signal input ranges are supported by the P0972QR termination channels?
A: The 32 channels support voltage signals from -40 VDC to +80 VDC and current signals from -20 mA to +20 mA.
Field Installation Guidelines
Mount the P0972QR module vertically onto the system DIN rail or mounting rack, verifying that side retention clips engage securely with the chassis frame. De-energize all field circuits and power sources before connecting or disconnecting terminal connections.
Strip field conductor ends to recommended lengths and clamp securely into the screw compression terminals. Separate low-voltage analog wiring from high-voltage AC cables in cabinet wire ducts. Route signal cable drain shields to the main cabinet single-point ground bar. Where field cables enter through threaded conduit, ensure NPT fittings achieve a minimum of 5 full threads of engagement to maintain physical strain relief and shield integrity.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Master Acceptance Testing: Understanding FAT and SAT in Industrial Control Systems
Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) serve as critical quality assurance gateways in complex industrial control systems. Both procedures verify that programmable logic controllers (PLCs), distributed control systems (DCS), and associated field devices meet strict functional specifications. However, executing these tests effectively requires clear delineation between off-site staging and final field commissioning.
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.
Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
Safety relays form the bedrock of functional safety in modern factory automation, preventing catastrophic equipment failure and protecting plant personnel. While standard electromechanical relays handle basic load switching, they lack the redundant diagnostics required for high-risk industrial environments. Modern industrial automation platforms—including programmable logic controllers (PLCs) and distributed control systems (DCS)—rely on specialized safety relays to monitor field devices and isolate hazards instantly.