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GE IS220PHRAH1A HART Enabled Analog I/O Module
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- Part Number: IS220PHRAH1A
- Brand: General Electric
- Type: Enabled Analog I/O Module
- Dimensions: 4x18.5x12.7cm
- Country of Origin: USA
- Barcode: 8537101190
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Additional Specifications
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Product Description
GE IS220PHRAH1A HART Enabled Analog I/O Module
Configured for mixed analog signal acquisition and HART communication within Mark VIe Speedtronic networks, the GE IS220PHRAH1A (IS220PHRAH1A analog I/O pack) provides direct electrical execution of 10 analog inputs and 2 analog outputs through a DC‑62 terminal‑board interface.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS220PHRAH1A |
| Brand | GE |
| Origin | USA |
| Weight | Not specified |
| Dimensions | 8.26 cm high x 4.19 cm |
| Operating Temp | -30 to 65 deg C |
| Power Consumption | Not specified |
| Channels | 12 total (10 AI, 2 AO) |
| Input Span | 4–20 mA, ±5 V (Ch 1–8), ±1 mA or 4–20 mA (Ch 9–10) |
| ADC Resolution | 16‑bit |
| DAC Resolution | 14‑bit |
| Scan Time | 5 ms (200 Hz) |
| Accuracy | Better than 0.1 percent |
| Noise Suppression | 3 Hz, 6 Hz, 12 Hz |
| CMRR | 60 dB at 60 Hz |
| Output Load | 800 ohm (4–20 mA) |
| Technology | Surface‑mount |
| Ethernet | Dual RJ‑45 ports |
| Connector | DC‑62 pin terminal‑board interface |
| HART Channels | 12 (10 AI, 2 AO) |
4–20 mA HART Loop Protocol Behavior
As a GE Mark VIe analog pack, the PHRA implements bidirectional HART communication superimposed on standard 4–20 mA loops. Each modem handles six channels, and update latency scales with channel utilization. The pack maintains channel‑to‑channel isolation through burden‑resistor sensing and low‑pass filtering, ensuring stable analog measurement while preserving HART frequency components. The design prevents cross‑talk between adjacent loops and maintains deterministic timing for AMS data retrieval.
Frequently Asked Questions
Q: Can the PHRA pack be hot‑plugged? A: Yes. The pack includes soft‑start circuitry that limits inrush current, allowing power to be applied without disconnecting the cable.
Q: Does the PHRA impose significant load on the terminal board? A: The pack senses voltage across burden resistors but does not materially increase terminal‑board loading beyond standard loop excitation.
Q: How does the pack maintain output accuracy? A: The current regulator loop tracks DAC command voltage, internal sourced current, and total loop current at the terminal board to detect deviations.
Field Installation Guidelines
- Secure the terminal board before attaching the PHRA pack to avoid connector strain.
- Adjust the mounting bracket so the DC‑62 connector experiences no lateral force.
- Maintain shield continuity for all analog wiring to reduce low‑frequency noise.
- Route analog loops separately from high‑energy conductors.
- Verify correct Ethernet port assignment when dual networks are used (ENET1 typically routed to the R controller).
- Confirm burden‑resistor configuration on the terminal board before enabling current‑loop inputs.
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