مقياس الجهد الكهربائي من Kromschroeder 74921144 الخاص بـ IC20 1000 أوم /B

Feedback potentiometer (rheostat) Kromschroder 74921144 for IC 20 actuator is an original wire-wound potentiometer designed for optional installation on IC 20 actuators to monitor their current position. With this component, you can track the rotation angle of the actuator shaft (from 0 to 90 degrees) and remotely control the position of the burner regulating damper (e.g., air or gas), which is critical for systems with analog control. Technical specifications: Parameter Value; Order numbers 74921144, 624.592.002; Manufacturer Kromschroder / Honeywell (Germany); Device type Feedback potentiometer; Resistance 1000 Ohm (1 kOhm); Max. power 0.5 W; Accuracy ±5%; Compatibility IC 20, IC 20..T (Kromschroder actuator); Measurement range 0° to 90° (mechanical limit); Operating temperature -40°C to +85°C; Weight 0.032–0.04 kg. Operating principle and application: The 74921144 potentiometer is mounted directly on the IC 20 actuator shaft inside its housing (mounting kit included). It works as a voltage divider: when the actuator rotates, the potentiometer wiper moves along the resistive track, changing the output voltage. This voltage is taken from the contacts (usually U and I) and is proportional to the rotation angle, transmitted to the controller (e.g., LMV5...) for precise damper positioning. Important connection and operation features: Angle limitation: To prevent damage to the potentiometer, the S3 and S4 cams on the actuator must be set within the range of 0° to 90°. Exceeding these limits (less than 0° or more than 90°) will destroy the part. Connection: The wiring must be implemented as a voltage divider, not as a pe