Description
Product Overview
The Eurotherm G408-0001 belongs to the Ultra Slimpak series, a compact, field-configurable signal isolator and conditioner built for process control systems. It provides galvanic isolation between field transmitters and control I/O cards, breaking ground loops and suppressing electrical noise in DCS, PLC and instrumentation circuits. Widely used in chemical, power, oil & gas and manufacturing plants for 4–20mA analog signal transmission.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | G408-0001 |
| Manufacturer | Eurotherm |
| Series | Ultra Slimpak |
| Product Type | Signal Isolator / Signal Conditioner |
| Mounting | DIN Rail |
| Input Signal | 4–20mA DC current / DC voltage |
| Output Signal | 4–20mA |
| Power Supply | 9–30 VDC |
| Channel | 1 input, 2 output |
| Accuracy | ±0.1% |
| Isolation | Galvanic isolation for ground loop elimination |
| Enclosure | Slim compact DIN rail housing |
| Operating Temp | -20°C ~ +60°C |
| Response | Fast signal transfer for analog process loops |
| Certifications | CE |
Key Features
- Field configurable without extra programming tools, supports 4–20mA analog loop signals.
- High isolation design eliminates ground loop interference between field sensors and control room hardware.
- Slim, high-density DIN rail form to save cabinet space.
- ASIC-based circuitry for stable long-term performance in harsh industrial environments.
- Dual output channels, allows splitting one field input signal to two separate control system inputs.
Installation Notes
- Install on standard DIN rail inside a sealed control cabinet, avoid direct exposure to moisture, dust and corrosive gas.
- Wire the 24VDC supply correctly; reverse polarity may damage the unit.
- Keep signal wiring separated from high-power AC cables to reduce electromagnetic interference.
- Verify input/output loop resistance before commissioning to ensure proper 4–20mA signal swing.
- Recommended to power off the whole rack before module replacement.
Testing Procedure
- Inspect physical condition: housing integrity, terminal blocks without corrosion or cracks.
- Apply rated 24VDC power supply to the module.
- Feed standard 4–20mA input signal from a signal calibrator.
- Measure output current on both output channels to check tracking accuracy within ±0.1%.
- Verify isolation performance and noise rejection.
- Record test readings and label for traceability.
FAQ
Q: What is the main purpose of G408-0001? A: It isolates and repeats 4–20mA analog signals to eliminate ground loops and protect DCS/PLC I/O modules from common-mode noise.
Q: Can it be used for both current and voltage signals? A: Yes, it supports field configuration for DC current and DC voltage inputs.
Q: Is G408-0001 hot swappable? A: It is not designed for hot swap. Power removal is recommended before installation or removal.
Q: What replacement part should I use if G408-0001 fails? A: Direct replacement is Eurotherm G408-0001 / G408-0001.V1 Ultra Slimpak isolator.
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