
Q45U Ultrasonic Sensors with Analog Outputs (Long Range)
Piezoelectric proximity mode sensors with push-button programming of sensing window limits
• Ultrasonic proximity detection from 0.25 to 3.0 m (9.8 to 118 inches)
• Push-button TEACH-mode programming of sensing window limits
• Digital filtering for exceptional immunity to electrical and acoustic “noise”
• Selectable 0 to 10V dc voltage sourcing or 4 to 20 mA current sourcing analog outputs
• Selectable output slope: positive or negative with increasing target distance
• Wide operating temperature range of –25 to +70 °C; all models include temperature compensation
• Rugged design for use in demanding sensing environments; rated IEC IP67,
NEMA 6P
• Choose models with integral 2 m (6.5 ft) or 9 m (30 ft) cable, or with Mini-style or
Euro-style quick-disconnect fitting
• Input for remote TEACH-mode programming of window limits
Models
Q45ULIU64BCR
Q45ULIU64BCRQ 5-Pin Mini-style QD
Q45ULIU64BCRQ6 5-Pin Euro-style QD
Standard 2 m (6.5 ft) cable models are listed. To order the 9 m (30 ft) cable model, add suffix "W/30" to the cabled model number. For
example, Q45ULIU64BCR W/30. Models with a QD connector require a mating cable.
Temperature
Compensation
Yes
WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious
injury or death. This device does not include the self-checking redundant circuitry necessary to allow its
use in personnel safety applications. A sensor failure or malfunction can cause either an energized or deenergized sensor output condition.
Cable Supply Voltage Output Type Response Time
2 m (6.5 ft)
15–24V dc
Selectable 0–10V dc or 4–
20 mA sourcing
Adjustable from 80
milliseconds to 2.56
seconds
Temperature Compensation
All models listed above feature temperature compensation. An increase in air temperature shifts both sensing window limits closer to the
sensor. Conversely, a decrease in air temperature shifts both limits further away from the sensor. The shift is approximately 3.5% of the
limit distance for a 20 °C change in temperature.
Temperature compensated models maintain the position of both sensing window limits to within 1% of each limit distance over the 0 to
+50 °C range, and to within 2.5% over the full operating range of from –25 to +70 °C.
Setting the Near and Far Sensing Limits
The Q45U features a single push button for programming of sensing window near and far limits. For more information, refer to Program-
ming the Window Limits on page 4.
Status Indicators
Status indicator LEDs are visible through the transparent, o-ring sealed acrylic top cover. Indicator function in the Run mode is, as follows:
P/N 48456 Rev. E 8/21/2013

Limits
N
1 2 3 4 5
3
4
5
1
2
7
Resp.
Speed
+
–
6
Q45U Ultrasonic Sensors with Analog Outputs (Long Range)
• The green LED is solid when power is applied to the sensor and flashes to indicate a current output fault.
• The red LED is solid when an echo is received and flashes at a rate proportional to echo strength.
• The amber LED is solid when the target is within the operating window limits.
The 5-segment moving dot LED indicator displays the relative position of the target within the programmed sensing window. LED #1
flashes when the target is closer than the near limit. LED #5 flashes when the target is beyond the far limit.
1 - Push button for programming sensing window limits
2 - 5-segment target position indicator (N = near)
3 - Green POWER indicator LED
4 - Red SIGNAL indicator LED
5 - Amber OUTPUT indicator LED
6 - Response adjustment
7 - Slots for removing inner cover
Figure 1. Analog Q45U Features
Output Response Settings
Important: Remove power before making any internal adjustments.
Using the two slots shown in Figure 1. Analog Q45U Features on page 2, a small flat-blade screwdriver may be used to lift up and
remove the black inner cover to expose the 4-position DIP switch. Use these DIP switches to program the output slope, output mode,
loss of echo, and min./max. output value default.
DIP Switch Function Settings
1 Output slope On = Output value increases with distance
Off* = Output value decreases with distance
2 Output mode On = Current output enabled
Off* = Voltage output enabled
3 Loss of echo On = Min - Max Mode
4 Min-Max On* = Default to maximum output value
Off* = Hold Mode
Off = Default to minimum output value
* Factory default setting.
2 www.bannerengineering.com - tel: 763-544-3164 P/N 48456 Rev. E
Figure 2. DIP Switches for Q45U Sensors

0
Near
Window
Far
Window
10
Target Position
Analog Output (V dc)
Positive
Slope
Voltage/Current-Sourcing Models
4
20
Analog Output (mA)
Q45U Ultrasonic Sensors with Analog Outputs (Long Range)
DIP Switch 1: Output Slope Select
Figure 3. Output as a function of target position
On = Direct = Output value (voltage or current) increases with increasing distance of the target from the sensor
Off* = Inverse = Output value decreases with increasing distance
of the target from the sensor
DIP Switch 2: Output Mode Select
On = The 4 to 20 mA current output (white wire) is enabled
Off* = The 0 to 10V dc voltage output (black wire) is enabled
This switch configures the D/A driver to use either the current output or the voltage output driver. This output function can only be set with
the power to the sensor turned off.
DIP Switch 3: Loss of Echo Mode Select
On = Min - Max Mode
Off* = Hold Mode
This switch determines the output response to the loss of echo. The “Hold Mode” (Switch 3 Off*) maintains the output at the value
present at the time of echo loss. The “Min - Max Mode” (Switch 3 On) drives the output to either the minimum value (0V or 4 mA or the
maximum value (10V or 20 mA) when the echo is lost. Minimum or maximum value is selected by DIP switch 4.
DIP Switch 4: Min-Max Default
On* = Default to maximum output value at loss of echo
Off = Default to minimum output value at loss of echo
Switch 4 selects the output response to loss of echo when “Min - Max Mode” is selected by DIP switch 3.
Response Speed Adjustments
The speed of the output response is set using the single-turn potentiometer. There are six values for response speed, which relate directly to the number of sensing cycles over which the output value is averaged. The response value is set by aligning the slot of the potentiometer with one of the marked positions.
P/N 48456 Rev. E www.bannerengineering.com - tel: 763-544-3164 3