1. The product has reliable performance, and the outer shell is made of aluminum alloy, with an overall size of 310X220X170mm.

2. The product has reliable performance, with a 4.3 inch color touch screen and a resolution of 800X480. Except for the voltage value that needs to be set by pressing the button, all other parameters are set on the touch screen.

3. Built in 200W 0-400V isolated power supply, which can easily set any voltage value. When the load changes, this power supply will automatically adjust the voltage to maintain the same as the set voltage. The power mentioned above refers to the maximum power of 200W when the current is 500mA at 400V. When the voltage is only 220V and the current is limited to 600mA, the maximum power output at this time is 132W

4. Easy to use, simply connect the fan to the AC wiring port and align the infrared sensor with the fan blades to accurately test the fan speed. (It is necessary to set the corresponding number of blades on the machine to be the same based on the number of fan blades).

5. Speed, current, voltage, power display, apparent power, and power factor (efficiency) can be used as AC power sources separately. It has the function of automatic power outage after testing.

If the AC fan or EC fan is equipped with FG, RD, and PWM functions, FG, RD, and PWM can be directly connected to the PWM and FG terminals on the instrument for testing.

7. PWM output, divided into automatic/manual control, manual 0-100% adjustable duty cycle, automatically divided into four sections, each section

The duty cycle is adjustable and each segment of the speed is displayed separately. Sections 2, 3, and 4 can be individually set to open and close

The interval time of the segment can be arbitrarily set from 1 to 99 seconds. The PWM output voltage can be selected as 5V or 3.3V

Output frequency 25KHz

8. The maximum and minimum speed limits can be set, the horn will alarm if the limit is exceeded, and PASS will be displayed if it is qualified. The speed and current will be automatically determined. You can choose to turn the PASS icon display on or off in the "System Settings" section.

9. Automatically save all set parameters when power off or off. The next startup will call up the last set parameters.