Sonictrac® Measuring Unit (distance measurement tool)
Model SMU100-XXX

A.C. INPUT

• 115 VAC, 50/60 Hz,1 phase fused at .3 amperes
  

SIGNAL INPUTS

• +10 VDC maximum with 10K ohms input impedance
  
• External CTL-CLK input, 7 Hz, 50% duty at 5 volts peak maximum for simultaneous “slave” operation as second Sonictrac® Measuring Unit without interference or cross-talk
  

SIGNAL OUTPUTS

• Positive and negative 10 VDC supplies at 2 mA maximum each (5K to 1 OK ohm load impedance)
  
• Inverted CTL-CLK output – 7 Hz, 50% duty at 1 mA maximum – for “slave” operation of a second Sonictrac®
  
• D.C. Voltage output, variable based on distance, +10 volts maximum at 10 mA maximum. Resolution to 1/4096 of full scale output possible

RELAY OUTPUT

• Fault relay – form “C” contact output, 120 VAC at .2 amps inductive or .5 amps resistive load DISPLAY
  
• 3 digit LED display of distance with .1 foot resolution

RANGE

• The LED display will constantly indicate measured distances up to 35 feet regardless of selected range.
  
• Digital-to-Analog conversion occurs within a distance from 1/2 to 30 feet. This distance is divided into the following four ranges: 1/2 to 5 feet, 1/2 to 10 feet, 1/2 to 20 feet, 1/2 to 30 feet

SCAN RATE

• Cycles occur at 7 Hz or once every 143 millisec.