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Isolation amplifier
Isolation amplifiers, also known as signal isolators or galvanic isolators, are critical components in industrial automation and process control systems. These devices provide electrical isolation between input and output circuits, breaking ground loops and protecting sensitive control equipment from voltage transients, surges, and noise. Isolat...
Isolation amplifiers, also known as signal isolators or galvanic isolators, are critical components in industrial automation and process control systems. These devices provide electrical isolation between input and output circuits, breaking ground loops and protecting sensitive control equipment from voltage transients, surges, and noise. Isolation amplifiers typically feature high common-mode rejection ratios (CMRR), wide bandwidths, and support for standard analog signals such as 4-20 mA, 0-10 V, or thermocouple inputs. They are available in various configurations, including single-channel, multi-channel, and loop-powered models, with isolation voltages ranging from 1 kV to 4 kV or more. Key technical parameters include accuracy (often ±0.1% or better), response time, and operating temperature range (-20°C to +70°C typical). These devices are essential for signal conditioning in harsh industrial environments.
Isolation amplifiers are deployed across a wide range of sectors, including oil and gas, chemical processing, power generation, water treatment, and manufacturing automation. They are commonly installed in control panels, distributed control systems (DCS), programmable logic controllers (PLC) racks, and remote terminal units (RTU). Typical applications include isolating sensor signals from motors, variable frequency drives (VFDs), and other high-noise equipment; protecting analog inputs in SCADA systems; and ensuring safe signal transmission in hazardous areas (e.g., ATEX or IECEx zones). They are also used in medical equipment, test and measurement setups, and renewable energy systems like solar inverters and wind turbines.
Within our catalog, the isolation amplifier category includes subcategories such as loop-powered isolators, DIN-rail mount signal conditioners, and programmable universal isolators. Key article codes often follow a pattern like "ISO-xxxx" or "MCR-xxxx", where the suffix indicates input type (e.g., "TC" for thermocouple, "RTD" for resistance temperature detectors, "V" for voltage). Specific examples include the ISO-4-20MA series for standard current loops and the MCR-TC-UNI for universal thermocouple inputs. These devices are typically ordered with options for input range, output signal, and power supply (24 VDC or 230 VAC). Accessories like mounting brackets and configuration software are also available.
Partnering with Electric Automation Network ensures you receive genuine isolation amplifiers with full technical documentation, including datasheets and wiring diagrams. Our engineers provide personalized support for selecting the right model based on your isolation voltage, signal type, and environmental requirements. We offer real-time pricing and express worldwide shipping, with stock available for popular models like the ISO-4-20MA and MCR-TC-UNI. Benefit from our expertise in industrial signal conditioning to optimize your system reliability and reduce downtime.
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