GE IS215WEMAH1A is a key component in the Mark VI series gas turbine control system produced by GE Fanuc, a subsidiary of General Electric (GE). Specifically defined as a Water/Exhaust Monitor Analog I/O Module, it is a dedicated analog processing module for the GE Mark VI platform. Its primary function is to accurately collect and process critical sensor signals related to water circulation systems and exhaust gas emission monitoring (such as pH value, conductivity, turbidity, oxygen content, and NOₓ concentration). After processing, the data is transmitted to the system controller via the backplane bus. GE IS215WEMAH1A plays a vital role in ensuring environmental compliance and equipment protection within the system, guaranteeing that the gas turbine’s auxiliary systems operate within parameters that are both safe and environmentally friendly.

• Product Model: IS215WEMAH1A
• Manufacturer: General Electric (GE)
• Product Type: Dedicated Analog Input/Output Module (Water/Exhaust Monitoring)
• Affiliated System: Mark VI Control System
• Backplane Communication: VME (VersaModule Eurocard)
• Input Signal Type: 4-20mA, 0-10V DC, Thermocouple, RTD (depending on configuration and terminal board)
• Output Signal Type: 4-20mA (for control or alarm)
• Number of Channels: Typically 8 analog inputs and 2 analog outputs (specific to configuration)
• Accuracy: ±0.1% F.S. (Full Scale) or higher
• Operating Power Supply: +5V DC (provided by the rack power module via the backplane)
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Installation Method: Vertically installed in a Mark VI dedicated VME rack

• Monitoring the pH value and conductivity of boiler feedwater and condensed water;
• Processing analyzer signals in Continuous Emission Monitoring Systems (CEMS) for measuring flue gas oxygen content, nitrogen oxide (NOₓ), and sulfur dioxide (SO₂) concentrations;
• Controlling related chemical dosing pumps.