Product Details:

The Emerson 1C31150G03 is a rack-mounted external power pulse accumulator module built for Emerson Ovation distributed control systems, widely deployed in thermal power plants and heavy industrial process automation. This pulse counter module accepts pulse and frequency signals powered by external field instruments, differing from the internal excitation versions of 1C31150G01 and 1C31150G02. It does not supply excitation voltage to field sensors, so it works with pulse transmitters equipped with independent external power sources. It performs local high-speed pulse counting and frequency capture on module hardware, preventing pulse loss during rapid signal bursts, and transmits accumulated total values and real-time frequency readings to the Ovation controller. The measured data supports boiler fuel totalization, turbine shaft speed monitoring and production batch calculation for process control logic. Each channel supports configurable pulse scaling, allowing engineers to set conversion factors to match different flow meters and speed sensors. It continuously monitors channel working status, detecting signal loss, open-circuit, short-circuit and external power supply abnormality faults, and sends diagnostic alerts to the Ovation operator workstation for maintenance scheduling. Built-in opto-coupler galvanic isolation and noise suppression circuits filter electromagnetic interference and transient voltage spikes from long field cables, protecting internal counting circuits from damage in electrically noisy power plant environments. Industrial-grade high-speed counting chips and rugged reinforced PCB layout are adopted, featuring strong anti-vibration performance and stable long-term operation under environments with dust, humidity and temperature fluctuation. It uses standard rack slot plug-in structure for simple installation and fast replacement during on-site maintenance, effectively cutting down equipment maintenance downtime. The Emerson 1C31150G03 cooperates with Ovation termination bases, CPU modules and rack power supplies to build complete Ovation DCS process control solutions. It is widely used in turbine shaft speed monitoring, boiler fuel flow totalization, chemical plant pulse flow measurement and oil & gas pipeline automation, delivering dependable external power pulse accumulation and minimizing unexpected downtime of process production equipment.

Specifications

Brand: Emerson (Ovation)

Model: 1C31150G03

Product Type: External Power Pulse Accumulator Module

Function: Pulse counting, frequency measurement, accumulated total capture, channel fault self-diagnosis

Application: Ovation distributed control rack system, power station, chemical plant, oil & gas pipeline automation

Feature: External powered input, opto-isolated input, configurable pulse scaling, rack slot mounting