Product Details
The Honeywell 8U-PAIHA1, also cataloged as the 8U-PAIHA1 High-Level Analog Input Module, operates as a dedicated hardware component for high-level signal conversion within Honeywell Series 8 I/O Terminal Assembly (IOTA) platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8U-PAIHA1 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.5 kg |
| Dimensions | 100 mm x 68 mm x 50 mm |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | 24 VDC nominal |
| Product Type | High-Level Analog Input Module |
| Input Signal Types | Differential and Single-ended |
| Input Range | 0-10 V, 4-20 mA |
| Analog Resolution | 16 bits |
| Measurement Accuracy | +/-0.1% of full scale |
| Electrical Isolation | Channel-to-system electrical isolation |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The 8U-PAIHA1 incorporates multi-channel analog signal acquisition hardware supporting 4-20 mA HART loop protocol configurations and standard 0-10 V voltage range inputs. Integrated channel-to-channel isolation circuits suppress noise propagation and shield internal processing nodes from ground potential differences across field wiring points. Onboard cold junction compensation (CJC) algorithms maintain high-accuracy 16-bit signal conversion within +/-0.1% of full scale across wide ambient temperature variations.
Frequently Asked Questions
Q: Can the 8U-PAIHA1 accept both differential and single-ended input wiring?
A: Yes, the module supports software and termination configuration for both differential and single-ended field signal connections.
Q: What operating voltage is required to power the internal circuitry of the 8U-PAIHA1?
A: The module operates from a nominal 24 VDC system power supply bus delivered through the IOTA carrier board.
Q: What mechanisms protect the 8U-PAIHA1 module from field-side ground loops and voltage transients?
A: Internal electrical isolation stages decouple field input terminal connections from backplane logic, preventing transient surge propagation and ground potential loops.
Field Installation Guidelines
- Verify that the IOTA baseplate grounding lug is securely bonded to cabinet Earth ground using a dedicated copper wire (minimum 4 mm2 / 10 AWG).
- Isolate all 24 VDC power feeds before inserting the 8U-PAIHA1 module into its assigned IOTA mounting socket.
- Cable analog input runs using shielded twisted-pair wire, maintaining a 300 mm minimum clearance from high-voltage AC cables and switching equipment.
- Terminate overall signal shields at the single designated enclosure grounding rail to eliminate circulating ground loop currents.
- Press the module firmly onto the IOTA socket until the side retention clips lock completely to maintain gas-tight terminal contact.
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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