Specifications

16. Using Peripherals with the USN52 L
Page 120 USN52 L Operating Manual
Amplitude output is scaled so that 2.5 volts corresponds to a
signal of 128% of screen height and 0 volts corresponds to no
signal in the gate. In RF display mode, 1.25 volts corresponds to a
signal of either +64% or -64% of screen height.
Distance output depends on the selected measurement mode,
the width of gate a and where the signal occurs in the gate.
In 0 to 1st mode, voltage out is based on the ratio of distance in
the gate to the width of the gate. No signal in the gate produces
2.5 volts (maximum) output. A signal occurring at half the width of
the gate causes 1.25 volt output, and so on.
In MULTECHO mode, voltage out is the ratio of measured thick-
ness to the width of the gate a. No signal in gate b produces 2.5
volts (maximum) output. A distance equal to half the width of gate
a causes 1.25 volt output, and so on.
A 4 foot long cable is supplied with the USN52 L for use with the
analog output port. Pin connections and wire colors are shown in
the following diagram.
16.9 Analog Output
Amplitude and time of flight (distance) analog outputs are provided
via the 7-pin AUX port shown below.
Rear Panel of the USN52 L
Outputs are 0-2.5 volts DC (1.25 volts in RF display mode) that
measure the following:
• Amplitude of the highest signal in the gate
• Time of flight (distance) to the first signal in the gate