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Acusensor 3
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2) Sensitivity setting
Three sensitivities are available. High is the most sensitive setting. Low is
the least sensitive setting. Under normal circumstances the medium setting
should be used. When adequate detection cannot be achieved, use a higher
sensitivity. If the Acusensor 3 activates unnecessarily, use the lower sensi-
tivity. When low sensitivity is used, care must be taken to assure that ade-
quate sensing is maintained.
Normally set to “M”
There are also four levels of snow immunity that can be set using dip
switches 5 and 6. Level 3 has the highest immunity (this may reduce
sensitivity a small amount).
Note: Snow mode is only active when the temperature is at, or below 41°F (5°C)
If the sensor is installed during a warmer time of year, a second visit, when colder, may be
necessary to check the detection pattern with snow mode activated.
3) Presence detection time
The Acusensor 3 computer will establish a base memory pattern of the total
detection area when power is applied. Changes within the memorized detection
area, whether on the floor or above the floor, will generate a signal to open the
door. The base memory pattern will change automatically after the selected
memory time set lapses if there is no movement within the detection area. The
time interval at which these memory pattern changes will occur, can be
adjusted using the dip switches 1 and 2.
Figure 12
Figure 13
Figure 14
DN0359
DN0359
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