Eurotherm G408-0001 Signal Conditioner

Eurotherm G408-0001 Overview

The Eurotherm G408-0001 is an Ultra SlimPak series signal conditioner and isolator. It is a high-density, DIN rail mount module designed to provide a fully isolated DC output proportional to a DC input. It leverages Action Instruments' (now part of Eurotherm/Watlow) advanced ASIC-based design for field-configurable input and output flexibility.

Product Detailed Description

• Function:

• Signal Conditioning: Converts various DC voltage and current input signals into standardized DC output signals.

• Isolation: Provides 1800V DC isolation between the input, output, and power supply, which is crucial for eliminating ground loops and protecting sensitive equipment from electrical noise and surges.

• Signal Conversion: Can convert signal levels, e.g., a specific DC voltage range to a 4-20mA current output.

• Signal Drive: Provides sufficient drive capability for the output signal to drive loads in the control system.

• Features:

• Ultra Slim Housing: Designed for high-density installations on DIN rails, optimizing space in control cabinets.

• Field Configurable: Highly flexible with 18 switch-selectable input ranges (e.g., 10mV to 100V, 1mA to 100mA) and multiple output ranges (e.g., 0-5V, 0-10V, 0-1mA, 0-20mA, 4-20mA). Precision zero and span potentiometers allow for fine adjustment (50% adjustability).

• ASIC Technology: Utilizes Application-Specific Integrated Circuit (ASIC) design for maximum reliability and consistent performance.

• Flexible Power Supply: Accepts a wide range of DC power (9 to 30 VDC), making it adaptable to various industrial power systems.

• Dual Function LED: A green, front-mounted LED indicates both DC power status and input signal status (flashing rates for over-range or under-range conditions).

• RoHS Compliant: Manufactured in accordance with Restriction of Hazardous Substances directives.

• Screw Terminals: Provides secure wire connections for 12-22AWG wires.

Product Parameters

• Input Types: DC Voltage (10mV to 100V, 12 ranges), DC Current (1mA to 100mA, 6 ranges)

• Output Types (G408-0001): 0-5V DC, 0-10V DC, 0-1mA DC, 0-20mA DC, 4-20mA DC (linear to input)

• Supply Voltage: 9 to 30 VDC

• Isolation: 1800 VDC between input, output, and power

• Accuracy:

• <2mA / <20mV input: ±0.35% of Full Scale (typical), 0.5% (max)

• 2mA / >20mV input: ±0.1% of Full Scale (typical), 0.2% (max)

• Response Time (10-90%): 200 mSec (typical)

• Stability (Temperature): ±0.025% of full scale/°C (typical), ±0.05%/°C (max)

• Power Consumption: 1.5W typical, 2.5W max

• Common Mode Rejection: 100dB (DC to 60Hz)

• Operating Temperature: 0°C to 55°C (32°F to 131°F)

• Storage Temperature: -25°C to 70°C (-13°F to 158°F)

• Humidity (Non-Condensing): 15 to 95% @ 45°C (Operating), 90% for 24 hours @ 65°C (Soak)

• Mounting: High-density DIN rail

• Dimensions (approx.): 12.6 mm width (ultra-slim)

• Weight: Approx. 0.5 lbs

• Certifications: CE Mark, UL 508 (File E99775), CSA C22.2 No. 0-M91 & 142-M1987 (File LR42272), RoHS Compliant.

Product Advantages

• Eliminates Ground Loops: The 1800V DC isolation effectively breaks ground loops, preventing signal distortion and equipment damage.

• High Flexibility & Versatility: Field-configurable input and output ranges significantly reduce spare parts requirements and allow for adaptation to a wide variety of DC to DC applications.

• High Reliability: ASIC-based design and robust construction ensure maximum reliability and a long Mean Time Between Failures (MTBF) of 60,000 hours.

• Space-Saving Design: Its ultra-slim housing is ideal for high-density installations, allowing more modules to be fitted into a smaller cabinet space.

• Precision and Accuracy: Offers high accuracy for precise signal conversion.

• Easy Configuration & Diagnostics: Trim potentiometers for zero and span adjustment, along with the dual-function diagnostic LED, make setup and troubleshooting straightforward.

• Wide Power Supply Range: Flexible DC power input simplifies power sourcing.

Precautions

• Proper Installation: Ensure the module is correctly mounted on a DIN rail and wired according to the product's wiring diagrams. Improper wiring can lead to malfunction or damage.

• Power Supply: Verify that the supply voltage is within the specified 9-30 VDC range.

• Wire Size: Use appropriate wire sizes (12-22AWG) for the screw terminals to ensure secure connections.

• Shielding: For optimal performance and to minimize interference from electrical and magnetic fields, the use of shielded, twisted pair wires on the input and output is recommended.

• Environmental Conditions: Operate the module within the specified temperature and humidity ranges to ensure long-term reliability. Avoid excessive vibration, shock, and direct exposure to moisture or corrosive substances.

• Calibration/Configuration: Follow the detailed instructions in the manual for field configuration and calibration to achieve the desired accuracy and scaling.

• Safety: Disconnect power before installation, wiring, or maintenance to prevent electrical shock.

Product Applications

The Eurotherm G408-0001 is highly versatile and finds applications in various industrial sectors where precise signal conditioning and isolation of DC voltage and current signals are required:

• Process Control Systems: Converting sensor signals (e.g., from pressure transducers, flow meters) to standard control signals for PLCs, DCS, or other controllers.

• Industrial Automation: Level conversion between different equipment or control systems.

• Eliminating Ground Loops: Essential in systems where multiple devices share a common ground, to prevent measurement errors and noise.

• Signal Level Conversion: Adapting signals from one range to another (e.g., from a custom voltage range to 4-20mA).

• Providing Signal Drive: Boosting weak signals to drive distant loads or multiple instruments.

• Data Acquisition Systems: Ensuring clean and isolated analog inputs for data logging and monitoring.

• Test & Measurement: Used in test benches and calibration setups for reliable signal processing.

• HVAC, Refrigeration, and Heating Systems: For various monitoring and control loops involving DC signals.

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