Description
EMERSON
MODEL: 3051/3001
ELECTRONICS HART
STD. ALARM / SATURATION LEVELS BOARD
P/N: 03031-0001-0002
OUTPUT: 4-20 MA
LOW ALARM: I<≼3.75 MA
LOW SATURATION: I = 3.9 MA
HIGH SATURATION: I = 20.8 MA
HIGH ALARM: I≽21.75 MA
LABEL 3031-620-1/AB
03031-0584-1101 ATAK
The Emerson 3051/3001 Electronics HART Standard Alarm & Saturation Board (P/N 03031-0001-0002) is a precision signal-conditioning PCB designed for use within Emerson Rosemount 3051 and 3001 series pressure transmitters. Operating on a 4–20 mA HART output loop, this board governs alarm threshold and saturation level behaviour, providing defined low alarm, low saturation, high saturation, and high alarm current outputs as per the original product specification. It is a critical component within PLC & HMI instrumentation systems onboard, ensuring reliable process variable transmission and loop integrity across automation and control networks.
Key Features
✓ HART-protocol electronics board engineered for Emerson Rosemount 3051 and 3001 series pressure transmitters, maintaining defined 4–20 mA loop output with precise alarm and saturation current thresholds as specified.
✓ Defined output levels include low alarm at <≼3.75 mA, low saturation at 3.9 mA, high saturation at 20.8 mA, and high alarm at ≽21.75 mA — providing clear loop-fault and out-of-range signal indication to connected PLC or DCS systems.
✓ Compatible with Emerson Rosemount 3051 and 3001 series transmitter housings; broader system compatibility with other Emerson platforms is subject to confirmation based on transmitter model, firmware version, and configuration.
✓ Intended for installation within the transmitter electronics housing; mounting location, environmental rating, and enclosure protection class depend on the specific transmitter assembly and vessel installation context.
✓ Serves as a direct replacement PCB during scheduled maintenance or fault diagnosis, restoring correct alarm and saturation signalling without requiring full transmitter replacement — supporting minimal downtime during service intervals.
Marine Applications
✓ Pressure transmitter maintenance and repair aboard vessels where Emerson Rosemount 3051/3001 series instruments are installed as part of process measurement and control systems.
✓ Engine room automation systems monitoring fuel, lube oil, cooling water, or ballast pressures where loop-integrity alarm signalling is essential for safe plant operation.
✓ Cargo and ballast control systems on tankers and bulk carriers requiring reliable 4–20 mA transmitter outputs integrated with onboard PLC or SCADA platforms.
✓ Offshore platforms and FPSOs utilising Emerson Rosemount instrumentation within process control and safety instrumented systems (SIS) where alarm saturation board integrity is operationally critical.
✓ Retrofit and upgrade scenarios where an aging or faulty electronics board within an existing Rosemount transmitter needs replacement to restore full HART communication and alarm functionality.
Why Marine Engineers Choose
Marine engineers and automation technicians select this board as a targeted, cost-effective component-level repair solution for Emerson Rosemount 3051/3001 transmitters, avoiding full instrument replacement and preserving existing loop wiring, calibration infrastructure, and control system integration — subject to confirmation of compatibility with the specific transmitter variant and system configuration.
Ideal For
Merchant vessels, tankers, bulk carriers, offshore supply vessels, FPSOs, drilling rigs, and offshore platforms operating Emerson Rosemount 3051 or 3001 series pressure transmitters within engine room automation, cargo handling, ballast, or process control instrumentation systems.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard fault diagnosis, transmitter testing and commissioning, component-level repair, and retrofit or upgrade integration. Compatibility with a specific transmitter assembly, firmware revision, or control system is subject to confirmation. To verify suitability, buyers should provide transmitter nameplate photographs, the full part number and label details, any applicable system drawings or loop diagrams, transmitter model and firmware version where known, and vessel name or IMO number if relevant to the scope of supply.
