DC12V PWM Fan Speed Controller with Temperature Display for 2-3 Wire PC Fans/Alarms

Precise Details

Features:

• 1. Crafted from high-quality materials ensuring reliability.
• 2. Compact size with an appealing aesthetic.
• 3. Temperature control speed controller for 2-3 wire fans.
• 4. Supports fan current range from 0.2-2A.
• 5. Suitable for a wide range of applications.

Parameter:

• Design Power Supply Voltage: DC12V
• Voltage Range: DC9.5-14.5V (ensure compliance with fan voltage range)
• Circuit Self Consumption: Less than 70mA (tested at 12V)
• Fan Current: 0.2-2A (performance declines below 0.2A)
• Temperature Measurement Range: -9.9-99.9°C
• Temperature Measurement Error: Within 0-50°C, error < 1.2°C, otherwise error < 2°C
• Circuit Board Size: 70 x 19 x 11 mm (excluding protruding interfaces)
• Default Factory Settings: Acceleration temperature 30°C, full speed temperature 35°C, shutdown temperature 28°C, basic output 20

Key Description:

Buttons "+" and "-": Switch display in operation and adjust values during parameter setting (long press for continuous adjustment).

"OK" Button Functions:

• Short press in working mode to enter manual speed regulation setting, range 1-100. Short press again to save and exit.
• Long press in working mode to enter temperature parameter setting. Use "+" and "-" to modify parameters and "OK" to switch settings. Adjust settings for acceleration temperature "L**", full speed temperature "H**", and shutdown temperature "C**". Short press "OK" to save and exit without long pause.

Temperature Parameter Details:

• "L_**": Acceleration temperature, range 5-94°C. Fan voltage increases as temperature exceeds this.
• "H**": Full speed temperature, range L**+5-99°C. Achieving or surpassing this results in full fan speed.
• "C**": Shutdown temperature, range 0-L**-2°C. If >0, low-temp shutdown is active; otherwise, the fan runs constantly at low temperatures.

Note: The difference between "H**" and "L**" must be ≥5, and "C**" must be at least 2 below "L**". The system auto-adjusts to maintain these differences.

Display Description:

• Three-digit Nixie Tube: Shows specific parameters and values.
• LED "x10 RPM": Displays speed; Nixie tube value multiplied by 10 is actual RPM.
• LED "°C": Displays temperature measured.
• LED "RUN": Indicates fan is running or off.

Package Includes:

• 1x Module
• 1x Sensing Line (Blackhead/Ring Optional)