Sunray SRF618B Fetal Monitor Transformer 220V 18V R-30 Power Supply Component

Sunray SRF618B Fetal Monitor Transformer 220V 18V R-30 Power Supply Component

• Product Description

This is a specialized power transformer designed specifically for the Sunray SRF618B Fetal Monitor. As a critical component in medical power supply systems, this unit converts standard 220V AC mains electricity into a stable 18V AC output required by the device's internal circuitry. The transformer features a robust EI-type silicon steel core structure, ensuring high magnetic efficiency and minimal energy loss. It is equipped with color-coded wiring: Red wires for the 220V input and Blue wires for the 18V output, along with a Yellow/Green ground wire for electromagnetic shielding and safety. This replacement part is essential for repairing power failures, fixing voltage instability issues, or replacing damaged units in clinical environments. It guarantees reliable performance for continuous patient monitoring.

• Product Specifications

• The function of the product

The primary function of this transformer is Voltage Transformation and Isolation. It steps down the dangerous high-voltage mains electricity (220V) to a safer, usable low voltage (18V) for the monitor's motherboard, display, and thermal printer. Additionally, it provides galvanic isolation, protecting the patient and the operator from hazards.

Use tips

1. Safety First: Ensure the fetal monitor is unplugged from the mains power before starting.

2. Access: Open the device casing to locate the original transformer (usually near the power entry point).

3. Disconnect: Carefully unplug the white connectors and desolder or disconnect the ground wire. Note the wire positions.

4. Replace: Install the new R-30 transformer. Connect the Red wires to the 220V input side and Blue wires to the rectifier board/output side. Secure the Yellow/Green ground wire to the chassis.

5. Test: Before closing the case, plug in the device and use a multimeter to verify the output is approximately 18V AC.