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contact>>date：2017-08-15 09:24
5 speed settings;
Memory function. The motor always stars at last speed;
Minimum speed setting. The minimum speed can be fine-tuned by the user to suit for all kind of motors;
LED lights showing fan speed;
ABS-V0 flame resistance material; and
Classical 86 series design and high quality build.
Fig. 1 and Fig. 2 show the front view and the back view of BRT-705 speed control switch respectively.
As shown in Fig. 1 and Fig. 2 BRT-705 speed control switch has one keypad and 5 LED ndicators on the front and wiring terminal blocks on the back. Each LED indicates the current fan speed respectively.
BRT-705 speed control switch requires both hot wire and neutral wire for installation:
Hot wire (ACL): Coming from the power line with 220V;
Neutral wire (ACN): Usually coming with the hot wire; and
Load wire: Going to the load.
Warning: Please make sure power is turned off before starting installation!
Fig. 3 shows the wiring diagram and Fig. 4 shows the step-by-step installation instructions. There are three easy steps:
Step one: Use a screwdriver to pry off the front plate in position A;
Step two: Wiring according to the diagram and the labelled ports of the switch; and
Step three: Install screws and front plate.
BRT-705 speed control switch has 5 different speed settings and the speed is adjusted by pressing the keypad on the front.
Turn on or turn off: Pressing the keypad will turn on the motor at its last speed (the first time turn-on will be at the highest speed) and pressing again will turn off the motor.
Adjust the speed: Pressing and holding down the keypad will cycle the motor speed in 5 different settings from the highest to the lowest then back to the highest. Once the desired speed is reached release the keypad.
Adjust the minimum speed: Remove the front plate to have access to a potentiometer as shown in Fig. 5. Use a screw driver to adjust this potentiometer to yield different minimum speed.
Rotating the potentiometer clockwise will reduce motor speed and rotating the potentiometer counter-clockwise will increase motor speed.
Note: Adjusting the minimum speed is necessary for some motors or the motor may not move due to too low a driving voltage.
BRT-705 speed control switch is ideal for regulating all kinds of motors. It has wide applications at various locations such as homes schools laboratories hospitals bar restaurant etc to control the speed of ventilation fans pumps or blowers.