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3.2 Toggle Switch Mode
Rotate the rotary switch to the scale 'D' to be in the hardware Toggle Switch Mode. In this mode,
sense the ACS-20B(W)-MRTU by hand once, the circular red LED is changed to blue (Relay: NO
& COM contact). Then, sense the ACS-20B(W)-MRTU by hand once again, the blue LED will be
changed back to red. (Relay: NC & COM contact)
Figure 3-2: Scale 0~C of rotary switch for relay hold time
3.3 Sensing Range
Sensing range (sensed by palm of the hand) of ACS-20B(M)-MRTU can be adjusted by the
rotary knob in figure 3-3. Rotate the knob clockwise to extend the sensing range (maximum 12
cm). Rotate the knob counterclockwise to reduce the sensing range (minimum 1 cm around).
The scale is not linear between minimum and maximum limit. The default scale is rotated
clockwise to the maximum limit.
Figure 3-3: Rotary knob for sensing range (sensed by palm)
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ACS-20B(W)-MRTU User Manual
Version 1.1
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