EDAN F300 Fetal Patient Monitor Motor Gear Assembly PM42A-096-XHF0 TC6120

EDAN F300 Fetal Patient Monitor Motor Gear Assembly PM42A-096-XHF0 TC6120

Introduction

This product is a motor gear assembly (PN: PM42A-096-XHF0 / TC6120) specifically designed for the Edan F300 fetal monitor. The assembly consists of a precision DC motor and a multi-stage planetary gearbox, all encased in a compact cylindrical metal housing for durability and efficient heat dissipation. The motor utilizes high-quality copper coils and precision bearings for smooth and reliable operation; the gearbox employs hardened steel gears for precise deceleration and torque multiplication. This motor gear assembly is the core drive mechanism of the fetal monitor's thermal array recorder, converting electrical signals into precise mechanical motion to deliver thermal paper at a controllable speed. The precision gear transmission ensures accurate paper delivery when recording critical information such as fetal heart rate patterns and uterine contraction waveforms, maintaining a stable speed regardless of paper roll diameter or recording duration. Feedback information is provided to the monitor's control system to ensure precise synchronization between recorded data and paper movement. This assembly is crucial for generating clear, appropriately scaled tracings.

Main Functions

1. Printing Power Output: A DC motor drives a precision gear set, providing stable and controllable power for paper feeding. This ensures the paper passes through the print head at a uniform speed, resulting in clear printing of monitoring data such as fetal heart rate and uterine contractions.

2. Precise Paper Feed Control: The precision transmission design of the gear set ensures accurate paper feed step distance, avoiding problems such as paper jams, paper feed deviation, or overlapping text, thus improving print quality and continuity.

3. Sensitive Start/Stop Response: The motor can be quickly started and stopped according to printing commands. Combined with the device's printing logic, it enables on-demand printing, pausing, and paper ejection operations, meeting the flexible needs of clinical use.

4. Fault Feedback Protection: When paper jams or excessive resistance occur, the motor can report the abnormality through current changes, triggering the device's protection mechanism to prevent motor burnout or gear damage.

Replacing the Gear Assembly

To remove the gear assembly,

1) Separate the upper assembly and lower assembly.
2) Disconnect the wire connector from the print control board.
3) Remove the three screws securing the gear assembly.

To replace the gear assembly,

Replace the gear assembly in reverse order. Make sure the wire connector is properly connected
to the print control board.

Operation Note:

1. Avoid interference: after installation, check whether there is paper scrap or foreign material in the passageway, ensure that the gear rotates freely, and avoid carding.

2. Specification of paper run debugging: After replacement, test the printing function, confirm the paper run smoothly, the character is clear, if there is a card paper offset, and the gap between the paper installation and the gear set can be adjusted in time.

3. Regular cleaning and maintenance: Every 3-6 months, clean the gear set and the waste paper of the printing paper channel together with the dust, to avoid the accumulation of dust causing the transmission efficiency to decrease or the noise to increase.