Description
Product Overview
The GE 8104-AO-IP (originally GE Intelligent Platforms / MTL Instruments, later acquired by Emerson) is an 8-channel single-ended analog output module for the PAC8000 remote I/O system. It outputs precise 4–20mA control signals to field control devices including I/P transducers, control valve positioners and modulating actuators. The module supports HART pass-through communication, enabling remote instrument diagnostics and configuration via asset management software. It features built-in open-circuit and short-circuit channel diagnostics. This module plugs into PAC8000 railbus carrier assemblies and is widely stocked as replacement spare in oil & gas, refinery, chemical and power plant DCS racks.
Technical Specifications
| Parameter | Details |
|---|---|
| Part Number | 8104-AO-IP |
| Original Manufacturer | GE Intelligent Platforms / MTL Instruments (now Emerson) |
| Product Category | Analog Output Module |
| Platform | PAC8000 Remote I/O System |
| Channel Count | 8 single-ended analog output channels |
| Output Signal | 4–20mA nominal; full range 1–23mA |
| Resolution | 12-bit D/A converter |
| Accuracy | ±0.25% of span |
| Response Time | ≤25ms; HART cycle time 0.75s |
| Load Capacity | 20mA at 21.6VDC into 700Ω maximum load |
| Diagnostics | Open circuit detection, short circuit detection per channel |
| Isolation | Railbus to field circuit 100VAC isolation; no channel-to-channel isolation |
| Railbus Power | 12VDC; max 150mA system power consumption |
| Field Power | Max 300mA total field power draw |
| Environmental Rating | ISA G3 corrosive environment rated, conformal coated PCB |
| Operating Temperature | -40°C ~ +70°C |
| Storage Temperature | -40°C ~ +85°C |
| Relative Humidity | 5% ~ 95%, non-condensing |
| Field Terminal | 8617-FT-NI |
| Approximate Weight | 0.22 kg |
Compliance & Certifications
- ATEX / IECEx certification for Zone 2 hazardous area installation
- FM non-incendive approval for Class I Div 2 locations
- CE mark for EMC and Low Voltage Directive
- RoHS compliant
- Full factory functional testing and calibration before shipment
Storage & Installation Guidelines
Storage Requirements
- Store in dry, temperature-controlled warehouse; recommended ambient 10°C ~30°C, RH <70% non-condensing
- Keep sealed inside original anti-static packaging before installation
- Protect against heavy mechanical shock, continuous vibration, dust and corrosive vapors
- ESD wristband required for unpacking and PCB handling
Installation Instructions
- Remove power to PAC8000 railbus carrier before module replacement
- Wear ESD protective gear to prevent electrostatic damage to circuit components
- Insert module into designated carrier slot, mechanical keying prevents mismatched module installation
- Wire 4–20mA field instrument loops to 8617-FT-NI removable terminal block following GE PAC8000 wiring schematics
- Verify loop resistance and wiring continuity for each analog channel
- Restore railbus power, download I/O configuration and run full channel diagnostic test
- Complete loop calibration and HART communication verification
- Hazardous area installation and commissioning must be completed by certified automation technicians
FAQ
Q: Why is 8104-AO-IP referenced as both GE and Emerson? A: PAC8000 remote I/O platform was originally developed by GE Intelligent Platforms with MTL. After MTL acquisition by Emerson, hardware remains identical, and plant spare lists retain GE naming convention.
Q: Does this module support HART communication? A: Yes, it supports HART pass-through for HART-capable field instruments, allowing AMS asset management for remote diagnostics.
Q: Are the analog output channels isolated from each other? A: No channel-to-channel isolation. There is 100VAC isolation between railbus backplane and field side circuits.
Q: What hazardous locations can this module be deployed in? A: Approved for ATEX Zone 2 and FM Class I Division 2 non-incendive applications.
Q: What warranty is available? A: Standard 12-month warranty applies for fully tested modules under rated normal operating service conditions.
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