The GE DS2020FEXAG4 is a high-performance analog input expansion module designed for GE’s Mark VIe gas turbine control system.Here are the details:
Product Features
High-precision measurement:Supports thermocouple(TC)and resistance temperature detector(RTD)inputs to ensure reliable temperature monitoring in extreme industrial environments.
High channel density:Provides 16 isolated channels,which is higher than the 8-12 channels of competing products.
Wide temperature range:Operating temperature range is-40°C to 70°C,and storage temperature range is-55°C to 85°C.
Reinforced isolation:The isolation voltage between channels and chassis is 2.5 kV RMS,which is higher than the 1-2 kV of entry-level products.
Rugged design:Standard conformal coating and sealed connectors,with protection rating of IP54,can resist dust,moisture and chemicals.
Strong anti-interference ability:90 dB common-mode noise rejection at 60/50 Hz,60 dB normal-mode noise rejection.
Easy integration:Plug-and-play with GE Mark VIe systems,compatible with Proficy Machine Edition software.
Technical specifications
Input type:Thermocouple(J,K,T,E,R,S,B,N)and RTD(2/3/4 wire).
Number of channels:16 isolated channels.
Voltage range:Thermocouple±30 mV;RTD 0–300Ω(3-wire,1 kΩexcitation).
Accuracy:Thermocouple±0.1%of reading;RTD±0.2%.
Communication interface:Connects to Mark VIe controller via RS-485 serial communication.
Mounting:Rack mount(3U size,160 mm depth).
Weight:0.9 kg(2 lbs).
Applications
Power industry:synchronous generator excitation system in power plants.
Petrochemical:process control in the oil and gas industry.
Manufacturing:realize automation control.
Aerospace:used in test benches and other scenarios.
Other industrial fields:such as food and beverage manufacturing,transportation,etc.
Advantages
High accuracy:24-bit ADC ensures±0.1%accuracy for thermocouples and±0.2%accuracy for RTDs.
Self-calibration function:automatic zeroing and self-calibration functions reduce drift over time.
Safety and compliance:meets IEC 61000-4-2(ESD),IEC 61000-4-4(surge)and UL 508 standards.
Immunity:The isolation voltage between channels and chassis is 2.5 kV RMS,which prevents ground loops and voltage spikes.
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