Product Description

The Emerson 12P3903X012 is a high-performance DeltaV™ Analog Output (AO) Module, specifically designed for Emerson’s DeltaV distributed control system (DCS). It provides 8 channels of isolated analog outputs, ideal for driving control valves, actuators, and other analog-controlled field devices.

Each channel converts digital control signals from the DeltaV controller into precise 4–20 mA analog outputs. Moreover, galvanic isolation between channels ensures reliable signal transmission and prevents interference, even in complex industrial environments.

In addition, the module is certified for hazardous area compliance (Zone 2 / Class I Div. 2) and engineered for continuous operation in demanding industries such as oil & gas, chemical plants, power generation, and steel manufacturing. Its compact design simplifies integration into DeltaV racks or cabinets while maintaining high reliability.

Technical Specifications

Model: 12P3903X012
Type: Analog Output Module
System Compatibility: Emerson DeltaV DCS
Number of Channels: 8 isolated analog outputs
Signal Range: 4–20 mA current output
Resolution: 16-bit digital-to-analog conversion
Load Resistance: 0–750 Ω per channel
Accuracy: ±0.1% of span
Isolation: Channel-to-channel and channel-to-ground
LocalBus Power Rating: 12 VDC at 150 mA
Bussed Field Power Rating: 12 VDC at 300 mA
Field Circuit Rating: 24 VDC at 32 mA
Dimensions (H × W × D): 51 × 102 × 102 mm
Weight: 0.18 kg
Operating Temperature: –40 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Humidity Range: 5% – 95% non-condensing
Shock Resistance: 10 g half-sine wave for 11 ms
Vibration Resistance: 1 mm peak-to-peak (2–13.2 Hz), 0.7 g (13.2–150 Hz)
Airborne Contaminants: ISA‑S71.04 Class G3
Protection Class: IP20
Certifications: CE, UL, ATEX, IECEx (Zone 2 / Class I Div. 2)
Country of Origin: USA

FAQ

Q1: How many output channels does the 12P3903X012 support?
It provides 8 isolated analog output channels for precise control.

Q2: What signal range does the module output?
The module outputs 4–20 mA current signals.

Q3: Is the module suitable for hazardous areas?
Yes, it meets Zone 2 / Class I Div. 2 certifications including ATEX and IECEx.

Q4: What is the accuracy of the analog outputs?
The module achieves ±0.1% of span with 16-bit digital-to-analog conversion.

Q5: Which industries commonly use this module?
Oil & gas, chemical, power generation, steel manufacturing, and process automation.