®
U-GAGE Q45U Long-Range Ultrasonic Sensors
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The green LED is on when power is applied to the sensor and flashes to indicate an overloaded output.
The red LED flashes when an echo is received; the flash rate is proportional to echo strength.
The amber LED is on when the outputs are conducting.
1. Button for programming the sensing window limits
2. 5-Segment target position indicator (N = Near)
3
3. Green power indicator
4. Red signal indicator
5. Amber output indicator
6. Slots for removing the inner cover
4
1
2
5
The 5-segment moving dot LED indicator displays the relative position of
Limits
the target within the programmed sensing window. The #1 LED flashes
N
when the target is closer than the near limit. The #5 LED flashes when the
target is beyond the far limit.
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2 3 4 5
6
Figure 1. Q45U Long-Range Features
Setting the DIP Switches
Output Response Settings.
Important: Disconnect the power before making any
internal adjustments.
1
ON
2
3
4
1. Insert a small flat-blade screwdriver into the slots.
2. Lift up and remove the black inner cover to expose the 4-position
DIP switch.
3. Use the DIP switches to program the following functions:
Figure 2. Q45U Programming Switches
DIP Switches
1
Function
ON/OFF Mode
Output:
HIGH/LOW Mode
On = Pump Out
On = normally closed (output energizes when target is absent)
Off * = normally open (output energizes when target sensed)
Off = Pump In
Mode:
On = HIGH/LOW (fill level control)
Off * = ON/OFF (output follows sensing action)
2
Response (40 ms/cycle)
1 cycle
Switch 3
Switch 4
OFF
ON
OFF
OFF
ON *
ON
3 and 4
2 cycles
8 cycles *
OFF *
ON
32 cycles
* Factory default setting.
Important: A response setting of 2 cycles, or higher, is recommended for optimum sonic and electrical noise
immunity. Always use the slowest acceptable response speed for your application. Single cycle update is only
recommended for short range (>1.0 m) applications looking for a stationary background target.
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