APG LPU-2127, Руководство пользователя

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• Utility Modes
MODE DESCRIPTION PARAMETERS
11 Temperature Range = 0 - 2
Compensation Default = 1
0 = OFF
1 = ON
2 = View Temperature (degrees C)/ON
Mode 11 activates or deactivates the internal temperature compensation circuit. The speed of sound
changes with changes in temperature, therefore changes in temperature can affect distance measurements.
These affects can be minimized by activating temperature compensation. If the mode is exited while
viewing temperature, temperature compensation is turned ON.
MODE DESCRIPTION PARAMETERS
12 AutoSense Range = 0 - 1
Default = 1
0 = Manual (user controls Sensitivity and Pulses)
1 = AutoSense (sensor controls Sensitivity and Pulses)
Mode 12 activates or deactivates AutoSense. When operating with this mode active, the LPU-2127 will
automatically change the sensitivity and pulses to match the application. Modes 13 and 15 limit the
maximum level that sensitivity and pulses can be manipulated when operating in AutoSense. Modes 13 and
15 set the sensitivity and pulses when operating in manual mode.
MODE DESCRIPTION PARAMETERS
13 Sensitivity Range = 0 - 100%
Default = 100%
Mode 13 sets the level of gain that is applied to the echo. When operating in AutoSense, this parameter
limits the gain that can be applied to the echo. If operating in manual, this parameter sets the receive gain.
When in manual mode, set the sensitivity to the minimum value that will allow the target to be reliably
tracked through the full range of expected environmental conditions.
MODE DESCRIPTION PARAMETERS
10 Distance Offset Units = Mode 1
Range = -3.00 to 3.00
Default = 0
Mode 10 is used to change the Zero Point of the sensor. This not the zero output (4 mA) point of the sensor.
The Zero Point of the sensor is the point from which the calculated distance is measured. See Figures 3.3
and 3.4 on page 6.