Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 12MX04F-V0002 |
| ABB Order Number | 3EGM030900R0002 |
| Manufacturer | ABB (Sweden) |
| Product Type | Analog Input Module (AI), 4-Channel |
| Supported Signals | 4–20 mA / 1–5 V / 0–10 V |
| Input Impedance | ≥100 MΩ (current) / ≥10 MΩ (voltage) |
| Resolution | 16 bit |
| Accuracy | ±0.1 % FS |
| Sampling Rate | 10 samples/sec per channel |
| Common-Mode Rejection | ≥100 dB @ 50/60 Hz |
| Channel Isolation | Channel-to-channel & channel-to-ground, 500 V AC |
| Supply Voltage | 24 V DC (19.2–28.8 V via backplane) |
| Typical Power Consumption | ≤3 W (≤125 mA @ 24 V DC) |
| Operating Temperature | –25 °C to +55 °C |
| Diagnostics | Wire-break, over-range, power-fail, comm-fail, LED status |
Main Features and Advantages
High-accuracy process acquisition. The ABB 12MX04F-V0002 (3EGM030900R0002) employs a 16-bit sigma-delta A/D pipeline that maintains ±0.1 % full-scale accuracy across the entire 4–20 mA and 0–10 V span. For plants running tight SPC limits on flow, pressure, or reactor temperature, this level of fidelity means fewer false deviations and less manual re-calibration downtime.Full galvanic isolation. Each of the four channels on the ABB 3EGM030900R0002 is isolated from the others and from system ground at 500 V AC. In refineries, power plants, and metallurgical lines where large VFDs, arc furnaces, and switched DC loads share the same cable trays, galvanic isolation is what keeps measurement drift—and module mortality—under control.Dual-signal flexibility. Rather than locking the user into a single instrument type, the ABB 12MX04F-V0002 accepts both current-loop and voltage-mode transmitters on a per-channel basis (configured via engineering tool). One rack can therefore mix 4–20 mA pressure transmitters, 0–10 V position feedback pots, and 1–5 V turbine flow pickups without extra signal-conditioning hardware.Built-in diagnostics and maintainability. The 3EGM030900R0002 continuously monitors each loop for wire break (a classic pain point on 4–20 mA live-zero signals), over-range, and backplane communication health. Faults are flagged through front-panel LEDs and also reported digitally to the control processor for alarm escalation. In a redundant I/O rack, the module is hot-swappable—technicians can replace a suspect card without powering down the process.Ecosystem compatibility. Because the ABB 12MX04F-V0002 speaks the native Symphony/INFI 90 process-bus protocol and is recognized by 800xA Engineering Workplace, it drops into existing projects with zero firmware translation. DCS architects re-using legacy INFI 90 code bases can slot the module straight into an existing control strategy without re-mapping tags.
Application Field
The ABB 12MX04F-V0002 (3EGM030900R0002) is designed for continuous-process and utility environments where analog-signal density is high and measurement integrity is non-negotiable. In thermal power plants, the module acquires boiler drum pressure, feedwater flow, primary-air differential, and turbine lube-oil temperature—four critical loops that directly influence combustion optimization and trip logic. In oil & gas midstream, it reads custody-transfer flow meters, separator pressure transmitters, and tank farm level gauges where ±0.1 % FS accuracy protects both process stability and fiscal accounting.Water/wastewater treatment plants deploy the ABB 3EGM030900R0002 on clarification-stage pH probes, dissolved-oxygen analyzers, and chemical dosing pump stroke-position feedback. The 500 V channel isolation is especially valuable here, where variable-frequency drives on large blowers and pumps routinely inject switching noise onto shared grounds. In metals and mining, the module handles rolling-mill hydraulic pressure, furnace cooling-water flow, and bag-house differential-pressure transmitters—applications that punish lesser A/D front-ends with vibration, heat, and EMI.Retrofit scenarios are another strong fit. Many INFI 90 installations dating back to the 1990s still run critical assets; the ABB 12MX04F-V0002 is mechanically and electrically backward-compatible with those racks while delivering modern 16-bit resolution that older 12-bit cards cannot match. For EPCs building new Symphony Plus skids, the module offers a proven, stocked spare with global logistics support—important when project schedules leave no room for custom I/O lead times. Across all these contexts, what the 3EGM030900R0002 delivers is predictable, auditable analog data that the control layer can trust.
Related Products
- 12MX04G-V0002 (3EGM030900R0002 family variant) – 4-channel relay output expansion for AC500 / adjacent low-power logic drive, often paired with the AI module in mixed I/O racks.
- 13MX08F-Vxxxx – 8-channel analog input sibling in the same mechanical format, used when channel density per rack needs to double.
- 12MX02H-V0001 – 2-channel high-speed AI variant with faster sampling, suited for turbine vibration or dynamic pressure capture.
- 13MO04F-V0002 – 4-channel analog output module (AO) from the same Symphony I/O tier; typically installed adjacent to 12MX04F-V0002 in loop-control cabinets.
- S800L AI801 – S800 remote-I/O analog input module, alternative path when moving from central INFI 90 rack to distributed S800 nodes under 800xA.
- IMSET01 – INFI 90 termination unit / baseplate that hosts the ABB 12MX04F-V0002 and provides field wiring interface.
- HIEE300900R0001 – ABB power supply module for the same rack ecosystem, ensuring 24 V DC backplane stability.
- IMFCS01 – INFI 90 function-control processor that reads data from the 3EGM030900R0002 over the process bus.
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