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.
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