Fisher I2P‑100 I‑P Current‑to‑Pneumatic Transducer 4‑20mA to Pneumatic Signal Converter Spare Parts In Stock

　　I. Product Specifications

Product Model: I2P‑100 I‑P

Product Brand: Fisher

Product Type: ESM-20 Engine Safety Protection Control Module

Power Supply: 24VDC

Input Channels: Multiple analog and digital signal acquisition channels

Communication Interface: RS485, supports Modbus protocol

Installation Method: Wall-mounted installation in control cabinet

Operating Temperature: -20℃~+70℃

Ambient Humidity: 5%~95%, non-condensing

Protection Rating: IP20, for use in engine room control cabinets

Compatible System: Wärtsilä ESM-20 Marine Diesel Engine Monitoring and Protection System

　　II. Product Overview

The I2P‑100 I‑P is the main engine protection module of the Wärtsilä ESM-20 system, used for the operation monitoring and safety protection of marine main and auxiliary diesel engines. It collects key parameters such as engine speed, oil temperature, oil pressure, exhaust temperature, and vibration, executes over-limit alarm, deceleration, and emergency shutdown protection logic, and uploads the unit’s operating data to the engine room monitoring system via bus. Widely used in Wärtsilä diesel generator sets on cargo ships, oil tankers, and offshore platforms, these are core automated spare parts for ship dry-docking, overhauls, and fault replacement.

　　III. Functional Features

Centrally collects signals from various analog and digital sensors of the diesel engine, monitoring engine operating conditions in real time. Built-in complete protection logic enables alarms, speed reduction, and emergency shutdown protection for faults such as over-temperature, under-pressure, and over-speed. Supports RS485 Modbus communication, uploading operating parameters and fault codes to the engine room monitoring system. Features hardware self-diagnostic capabilities, identifying faults in the module itself and sensor circuits, and outputting corresponding alarm information. Local terminals support external alarm indicator lights for intuitive on-site monitoring of fault status. Fault event storage records, saving alarm and protection action history for easy fault tracing and troubleshooting.

　　IV. Functional Features

Marine-grade hardware design, vibration and shock resistant, suitable for the high temperature and humidity fluctuations in ship engine rooms. Protection logic is embedded in the hardware module, requiring no complex programming; simple parameter configuration after replacement allows for immediate operation. Multiple fault isolation mechanisms ensure that sensor circuit faults do not cause overall module failure. The module panel status indicator lights provide a clear view of the power, communication, and protection operation status. The standardized wall-mounted housing allows for in-situ replacement of old modules without requiring modifications to the cabinet openings. It supports long-term uninterrupted operation, meeting the 24-hour continuous monitoring requirements of marine diesel engines.

　　V. Application and Operation

Primarily used in various ocean-going vessels and offshore platforms using Wärtsilä diesel engines, it is compatible with the ESM-20 monitoring and protection system. It collects signals such as oil pressure, water temperature, exhaust temperature, and engine speed to complete engine safety interlock protection. The module connects to a 24VDC power supply and is connected to field sensor signals and the communication bus. Upon power-up, it automatically collects unit data; exceeding parameter limits automatically triggers alarms, speed reduction, or shutdown protection. The upper-level monitoring system reads operating data and fault codes; the panel indicator lights synchronously display the operating status. After spare parts replacement, parameter configuration is completed, and analog signals are used to verify the alarm and shutdown protection logic.

　　VI. Design and Structure

The metal-reinforced housing resists engine room vibration and impact, improving the mechanical reliability of the equipment. Terminals are arranged in distinct zones, clearly separating sensor inputs, power, and communication terminals to reduce wiring errors. The board integrates complete protection circuitry, ensuring fast hardware response and timely protection actions. Wall-mounted installation structure facilitates easy disassembly and maintenance. The dustproof and moisture-proof casing is suitable for oil mist and humid environments in electrical control rooms. Modular overall structure allows for direct replacement of entire units, reducing on-site maintenance workload.

　　VII. System Features

Natively compatible with the Wärtsilä ESM-20 engine monitoring and protection system, ensuring stable and reliable data exchange. Independently executes engine protection logic; failures in the upper-level monitoring system do not affect the machine’s safety protection actions. Event logs are timestamped, meeting the requirements for ship equipment fault analysis and special inspections. 24VDC marine standard power supply, resistant to DC power fluctuations on ships. Modbus standard protocol facilitates integration with third-party engine room monitoring systems. Features communication fault detection; local module protection functions remain effective even in the event of bus anomalies.

　　VIII. Warranty Information

The I2P‑100 I‑P sold in this store comes with a 12-month warranty. The warranty covers only manufacturing defects and hardware malfunctions under normal operating conditions, for which repair or replacement services are available. Damage caused by human disassembly, unauthorized modification, incorrect wiring, overpressure, water ingress, external force damage, oil mist corrosion, surge impact, or other abnormal damage is not covered by the warranty. Natural aging and wear of components are also not covered.

　　IX. After-Sales

Service All products undergo visual inspection and power-on testing before shipment to ensure proper functioning. For any transportation damage or visual defects occurring within 48 hours of receipt, after-sales service can be expedited with photographic evidence. Technical support is provided, assisting with installation verification, parameter configuration, communication debugging, and protection circuit calibration. We offer a long-term supply of various automation spare parts for Wärtsilä marine engines and provide ongoing technical consultation. We support rapid delivery of in-stock items to meet urgent supply needs for ship dock repairs and emergency repairs.