user manual Owner's manual

DCU-1104 and DCU-1108 Rev. A2, 11/06
12
Automation Products Group, Inc.
APG...Providing tailored solutions for measurement applications
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Operation
MODE DESCRIPTION PARAMETERS
1 Units Range = 1-3
1- inches
2- feet
3- meters
The first thing to set up on the DCU-11 is the Units to be Displayed. The
Units Mode is used to select the type of measurement and setup units in which
you will operate. The units will also determine the resolution of the display and
the outputs. The resolution is: inches .1, feet .01, and meters .01.
NOTE: All modes must be set using the units in Mode 1.
MODE DESCRIPTION PARAMETERS
2 *Sensitivity Units = %
Range = 0000 - 9999
The sensitivity setting adjusts the level of gain/amplification (as a percentage
of maximum) that is applied to the return signal. To avoid amplifying unwanted
noise, set the sensitivity to the minimum value that will allow the target to be
reliably tracked through the full range of environmental conditions. It is often
wise to add another 10% as a buffer.
*NOTE: FOR VIEWING ONLY IN AUTOSENSE MODE (mode- 27). The
first two digits on the display will read the highest sensitivity the sensor can
operate at effectively. The last two digits display the currently operating
sensitivity level of the sensor. The numbers displayed are used to help with
installation.
MODE DESCRIPTION PARAMETERS
3 Blanking Units = Mode 1
Range = 2-50 ft.
Default = 2.00
The blanking distance is the zone from the sensor to a point where the first
echo will be accepted. Because of the physical properties of an ultrasonic
sensor, objects cannot be detected closer than 2 ft. from the end of the
transducer. This distance varies according to how much energy is being
transmitted (Mode 4) and the installation. Ensure this parameter is entered after