Description
The Ultra SlimPak G408-0001 is a high-density, DIN-rail mounted DC signal conditioner designed for industrial process control. It provides galvanic isolation and signal conversion between various DC voltage and current inputs and outputs, effectively eliminating ground loops and reducing noise in sensitive measurement circuits.
Product Parameters (Datasheet)
- Model Number: G408-0001
- Series: Ultra SlimPak
- Input Ranges: * Voltage: 0 to 10 mV up to 0 to 100 V (User-configurable)
- Current: 0 to 1 mA up to 0 to 100 mA (User-configurable)
- Output Ranges: * Voltage: 0 to 5 V, 0 to 10 V
- Current: 0 to 20 mA, 4 to 20 mA
- Isolation: 1800 V DC between input, output, and power
- Accuracy: < ±0.1% of span
- Response Time: < 100 ms (Typical)
- Power Supply: 9 to 30 V DC
- Form Factor: 12.5mm (0.5 inch) slim housing
Country of Origin
This precision analog module is engineered and manufactured by Action Instruments (a brand of Eurotherm / Schneider Electric) in the USA.
Application Fields
The G408-0001 is used across diverse industries to ensure signal integrity:
- Water & Wastewater: Converting pump speed signals for SCADA monitoring.
- Chemical Processing: Isolating 4-20 mA loops from field transmitters to prevent ground loop interference.
- Factory Automation: Scaling high-voltage DC signals from large motors down to PLC-compatible 0-10 V levels.
- Renewable Energy: Monitoring battery bank voltages in solar or wind power storage systems.
- HVAC Systems: Scaling temperature or pressure sensor data for building management controllers.
Product Usage Instructions
- DIP Switch Configuration: Before installation, use the side-mounted DIP switches to select the desired input and output ranges. Refer to the configuration table printed on the side of the module.
- Mounting: Snap the unit onto a standard 35mm DIN rail. Its slim 12.5mm profile allows for high-density installation in crowded control cabinets.
- Wiring: Connect the field input signal to terminals 1 and 2, and the output signal to terminals 3 and 4. Power (9-30 V DC) is applied to terminals 5 and 6.
- Calibration: The G408 features “TouchCAL” technology. Use the front-panel push buttons to perform precise zero and span adjustments without the need for a potentiometer.
- Grounding: Ensure the DIN rail is properly grounded to maximize the effectiveness of the 1800 V isolation.
Product Technical Description
The G408-0001 utilizes a 3-way isolation architecture, meaning the input, output, and power circuits are all galvanically separated from one another. This is critical in industrial environments where large motors or heavy machinery can cause significant “common-mode” voltage differences between different parts of the plant. Technically, the module converts the incoming DC signal into a high-frequency pulse-width modulated (PWM) signal, which is passed across an optical or transformer barrier before being converted back into a stabilized DC output. The “Ultra SlimPak” design significantly reduces cabinet space requirements, while the wide-ranging DC power input makes it compatible with most standard industrial power buses.
Q&A (Common Questions)
- Q: Do I need a specific tool to calibrate this module?
- A: No. The G408 uses the “TouchCAL” system, which allows you to calibrate the unit using only the integrated push buttons on the front face.
- Q: Can this unit handle AC voltage inputs?
- A: No, the G408-0001 is strictly for DC signals. For AC voltage or current, look for the G448 or G418 series.
- Q: What happens if the input signal exceeds the selected range?
- A: The module includes over-range protection; however, the output will typically saturate at its maximum value (e.g., 22 mA or 11 V) and the status LED may indicate an error.
- Q: Is it possible to use this with 110 V AC power?
- A: No. This model is DC-powered (9-30 V). You would need a separate DC power supply or an AC-powered version of the SlimPak if one is available for your specific application.
Similar Model Recommendations
- Action Instruments G448-0001: Programmable RTD/Thermocouple input signal conditioner.
- Action Instruments G408-1001: Variant with different factory default settings or approvals.
- Eurotherm 3216: Advanced PID controller if control logic is needed in addition to conditioning.
- Schneider Electric RM35JA: Current monitoring relay for basic over/undercurrent protection.
- Action Instruments WV408: Wide-ranging DC input isolator with AC power options.
For technical support or a quotation on the Ultra SlimPak G408-0001, please contact our signal conditioning specialists.



