Basler Electric 8650C80G01 Isolation Transducer PCB Board

The Basler Electric 8650C80G01 is a printed circuit board assembly that functions as an isolation transducer for analog signals in power system control and protection equipment. It provides galvanic isolation between input and output circuits, eliminating ground loops and protecting sensitive electronics from voltage spikes. The board is used in Basler Electric relay and regulator systems to condition signals from current transformers, voltage transformers, and temperature sensors.

Functional Description

The board accepts a low‑level analog input (e.g., 0‑10 V or 4‑20 mA) and converts it to an isolated output signal proportional to the input. It employs a precision operational amplifier, an optocoupler or transformer‑based isolation barrier, and a output driver. The transducer offers high linearity, low offset drift, and wide bandwidth suitable for both DC and AC measurements. An onboard trim potentiometer allows fine calibration of the output gain and offset.

Design and Construction

The PCB is fabricated from FR‑4 material with gold‑plated edge connectors for reliable plug‑in connection. Components are surface‑mount or through‑hole, selected for industrial temperature range. The board is coated with a conformal layer to protect against moisture, dust, and chemical contaminants. It is designed to fit specific Basler relay chassis, with the same form factor and pin assignments as the original.

Technical Specifications

Input range: 0‑10 VDC or 4‑20 mA (selectable by jumper). Output range: 0‑10 VDC or 4‑20 mA. Isolation voltage: 2500 V RMS. Accuracy: ±0.2% of full scale. Temperature drift:<50 ppm/°C. Power supply: ±15 VDC or 24 VDC (depending on system). Operating temperature: –25°C to +65°C. Mounting: plug‑in module.

Applications

This transducer board is used in Basler Electric voltage regulators, synchronizing relays, and protection relays to interface external analog signals. It is commonly employed for sensing DC bus voltage, battery voltage, temperature, or pressure. It can also be used in custom control panels where signal isolation is required.

Installation and Replacement

Installation involves powering down the equipment, removing the old board, and inserting the new one into the designated slot, ensuring correct orientation. Secure with retaining screws. After replacement, calibrate the output using the onboard trim pot and a precision meter. Verify isolation by applying a high‑voltage test between input and output.

Reliability and Quality

Basler Electric manufactures this board with high‑quality components and rigorous testing, including thermal cycling, vibration, and electrical performance checks. The board is backed by Basler’s quality assurance and technical support.

Conclusion

The Basler Electric 8650C80G01 isolation transducer board is a reliable, accurate, and durable component for signal isolation and conditioning in critical control systems. Its robust design and precise performance ensure dependable operation over many years.