When desired Trigger Temperature is reached, hold button down until LEDs stops blinking, to save setting. Now each short button press will cycle you through the different temperature settings in oC as indicated by the LED pattern (see chart, With LED #2 ON (not flashing), hold button down until LEDs start to flash slowly, then release the button. (The temperature that the PWM fan starts to speed up over base speed) When the desired speed is reached, HOLDING DOWN the button until LED #2 is stops flashing, saves that setting. When LEDs #2 and #3 light up together, the maximum Base Fan Speed has been reached.Īfter every action, LED #2 will flash rapidly, indicating a new setting is ready to be entered. When LEDs #1 and #2 light up together, the minimum Base Fan Speed has been reached. Single (short) button press increases Base Fan Speed by 5% - LED #3 lights up momentarily.ĭouble (short) button press decreases Base Fan Speed by 5% - LED #1 lights up momentarily. (The speed the PWM fan will run when the power comes on, and unit is cool)Ĭonnect 12V to Power On controller - LED #2 lights up = General operation (Settings NOT saved within 20 seconds will be lost!) Rapid flash - (Ready to save) - Followed by long button push, saves setting. Long button push- (medium flash) Temperature range (temperature spread from trigger point to 100% fan speed) Long button push- (slow flash) Trigger temperature (temperature that fan begins to speed up) (Plug Thermocouple in after programming to enter normal operation)įirst button short push - Base fan speed (fan speed when cool - power on) Plug PWM Fan in, Connect 12V Power, Red to +, Black to -, if fan spins. Unit has been tested to work for up to 2A worth of devices. 4.25" stripped input lead cables connect into this PCB with included 3.5" thermostat-please note that this does not work with our other thermocouple cables. This is perfect for an audio visual, home entertainment, or other enclosure where keeping noise to an absolute minimum is vital. Easily program a PWM fan with just a standard 12v power source with this very small module (1.6" x 0.75")! This will allow you to pinpoint the speed of your fan from it's minimum to maximum setting and have it ramp up as your enclosure becomes hotter.
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March 2023
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