Mr RobotTM
Robots & Microcontrollers for the Future
PO Box 974, Midlothian, VA 23113 USA

Ultrasonic Sonar Transducer
Digital or Analog Output versions

1 inch to 12 inches adjustable
6 inches to 20 feet adjustable
12 inches to 40 feet adjustable
(+0.1% accuracy over entire range at stable temperatures;
Switch point and analog outputs are temperature compensated)

15 degree nominal; Single beam, cone-shaped pattern diverges approximately 2.6' at maximum range (10').

10 Hz astable; May be externally triggered up to a 50 Hz rate.

0-5 VDC analog output is filtered to the approximate formula: Vout = 0.9(Vnew value) + 0. I (Vpast avg. value).

Custom response filters available for extra charge.

One (1) 0-5 VDC or 0-10 VDC 10-bit analog output with fully independent zero and span adjustments over entire operating range.

Operating -40 to 85°C (-40 to 185°F).

Indoor or protected outdoor environments; Highly insensitive to temperature, humidity and pressure changes; Withstands high audio and EMI/RFI levels; Requires protection from excessive moisture in outdoor applications.


1.700" overall diameter; 0.950" depth; 1.525" transducer face diameter. (Use RTV silicone or edge clips to secure in place.)


0.6 ounces. (17 grams) +/-

5VDC or 8-16 VDC; 30 ma maximum current.


Mount in 1.575" diameter hole; use RTV silicone or edge clips to secure in place.

50 KHz Electrostatic transducer with integrated SMT eletronic circuitry.

Comes standard in flat black cold roll steel housing or optional metal finish stainless steel housing. Polymer coating available for extra durability.

System Wiring:
Pin# Description:
1 Power Supply; 8v-16v versions require 8-16 VDC regulated with 30 mA current capacity. 5v versions require 5 VDC.
2 Common; Return for DC power supply, TTL outputs & clock signals.
3 External trigger; Accepts TTL compatible logic level clock signals (0-5 VDC).
4 Trigger enable; Allows sensor to accept external trigger signals. Enable by connecting pin 4 to common.
5 Clock out; Delivers a TTL compatible clock signal (0-5 VDC)
6 Analog output; 0-5 VDC or 0-10 VDC measurement output, proportional to distance of target
7 Not used (This pin has been cut off for identification).

General Install Info:
1 Always mount the sensor in an indoor, dry location. An outdoor version is available for extra cost.
2. Mount as far from the ground as possible.
3. Adjust gain to minimum setting required to insure reliable target detection. (Excessive gain may result in false detection.
4. Mount the unit in a location where environmental interference is at a minimal.

Sensor Calibration Procedures:
1. Apply appropriate DC power to the unit. (pin 1)
2. Allow several minutes warm-up time before calibration.
3. Connect a DC voltmeter's + lead to the Analog Output (pin6) & the DC voltmeter's - lead to Common (pin 2).
4. Cover the sensor face tightly with a piece of flat paper. Adjust the "SCALE Adjust" potentiometer until a +5.0 VDC reading is obtained.
5. Place the target at the desired distance for the full scale voltage output. This can be either the minimum range or the maximum range between the sensor and the target. Push and hold "MAX VOLT RANGE SET" button on sensor and wait for the LED indicator to stop flashing and the transducer generates a "chirp" sound. Release.
6. Like in step 5, place target at the minimum desired measurement distance. Push "MIN VOLT RANGE SET" in the same manner.
7. Gain Control: The sensor has been pre-set at the factor for optimum performance. To re-calibrate the "GAIN Set" potentiometer, place the target at the maximum distance. Rotate the GAIN pot. fully counter clockwise. Slowly rotate the GAIN control clockwise until detection occurs. Rotate the Gain control clockwise an additional 1/16 turn.

For Pricing, click here.

Specifications, features and options subject to change without notice.

PO Box 974, Midlothian, VA 23113. 804-426-3394
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