Flocorp LTRP Ranger Plus Ultrasonic Level Transmitter

Flocorp LTRP Ranger Plus Ultrasonic Level Transmitter provides accurate non-contacting level measurement up to 35 feet and features (3) Analog Outputs and (2) Switches. The analog output modes are 0-10 VDC, 4-20mA Sinking, and 4-20mA Sourcing.

The switches are configurable as either “PNP” or “NPN” type (sourcing or sinking). Each has an adjustable set point, hysteresis, window, initial conditions, ON delay, OFF delay, and loss of target response to easily create controls and alarms. The sensor is housed in a chemically inert PVDF sealed housing for durability and long life. The sensor is well suited for a wide range of corrosive, sticky, or dirty type media.

The Ranger Plus™ applications include pump control, bulk inventory, batch processing, water management, high/low-level alarms, and much more. To configure, monitor and data log your application, download the freelancer Plus™ software and purchase one RS-485 communication tool.

Flocorp LTRP Ranger Plus Features and Benefits

  • Unaffected by optical factors like color and transparency
  • Computer (PC) software allows remote adjustment
  • Standard RS-485 Serial Interface
  • Durable housing for long life
  • Threaded at both ends
  • Optional Threaded Jam Nut in applications where no threaded fitting is available
  • Short & Overload protected I/O
  • Adjustable filters compensate for tank mixers or turbulence
  • Temperature compensation for improved accuracy
  • Adjustable sensitivity
  • 4.0” to 12.0” headband


Active Measuring Range LTRP-10: 4” – 120”
LTRP-35: 12” – 420”
Case Material PVDF
Temperature -40 to 158 F (-40 – 70 C)
Humidity 0 to 100% operating
Temperature Compensated
Digital: 0.0034” (0.086mm); Analog: 4099 steps (over full 0-10 VDC or 0-20 mA)
Greater of 0.03” (0.76mm) or 0.1% of target distance in stable environment
50 ms, software adjustable; affected by software filter selections
Update Rate
10-30 VDC, 50 mA
Input Power maximum (not including output currents)
0-10, 0-5 VDC or PC
Voltage Output customized; 10mA max. (*)
Current sourcing 4-20mA or PC
customized, max. loop 500W (*)
Current Loop #1
Current sinking 4-20mA or PC customized, max. loop 500W (*)
Current Loop #2
150 mA max. @ 40 VDC max., teachable set point & polarity, fault indication
Sinking Switch
150 mA max. @ input voltage, teachable set point & polarity, fault indication
Sourcing Switch
LTRP-10: 10 feet
Max. Range LTRP-35: 35 feet
LTRP-10: 1.5 inches
Process Mount LTRP-35: 2 inches
Adjustment Ranger Plus™ Software
Stored in non-volatile memory
Transducer Rugged piezoelectric
Protection NEMA 4X, NEMA 6P, IP68

Ref: Flo-corp.comDownload Datasheet: Flocorp Ranger Plus LTRP Ultrasonic Level Transmitter

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