APG DCR-1006A user manual - Manual (Page 6)

DCR-1006A Ultrasonic Controller Rev. A1, 2/14
6
Automation Products Group, Inc.
APG...Providing tailored solutions for measurement applications
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
NOTE: Stilling pipes are an excellent solution for liquid level
applications where an unobstructed path to the target is not feasible
(see stilling pipe mounting on page 9 for details).
• When mounting outdoors, it’s best to shade the sensor from direct
sunlight. Direct sunlight can warm the sensor housing above the ambient
temperature causing false temperature readings and overcompensation by
the sensor.
• Installation
Proper sensor mounting is critical for successful operation of an ultrasonic
sensor. Using the following guidelines can help ensure trouble free installation
and operation:
• Ensure that the sensor face is perpendicular to the target surface. If the
target is more than a few degrees off perpendicular, it may not be
detected. Targets at greater distances will require more precise sensor
alignment.
• Mount the sensor in a location that provides an unobstructed column
of air from the sensor to the target. The required width of the air
column depends on several factors, including the angle and reflective
characteristics of any potential targets on the edge of the column, the
sensitivity setting of the sensor, the maximum distance to the target, and
the reflective characteristics of the target itself. Generally speaking a 3 to 4
foot diameter unobstructed column is sufficient even at longer ranges.
11.4 in. 19 in. 22.8 in. 26.6 in. 30.4 in. 34.2 in. 38 in. 3.8 in. 7.6 in.
9°
15.2 in.
2 ft.
4 ft.
3 ft.
5 ft.
6 ft.
7 ft.
8 ft.
9 ft.
10 ft.
1 ft.
Typical beam spread of a sensor operating at maximum sensitivity