Flocorp LTRP-1 Ranger One Ultrasonic Level Transmitter

Flocorp LTRP-1 Ranger One Ultrasonic Level Transmitter

Flocorp LTRP-1 Ranger One Ultrasonic Level Transmitter has a maximum range of 14 feet (4.3 meters). Like all Ranger sensors, it’s built for durability and ease of use in tough industrial environments. The Ranger One™ is unique in the Ranger family of products because it can be applied to any liquid tank level application and much more.

The Ranger One™ is an ideal solution for position or distance measurement in factory automation like web control or heavy equipment monitoring, as well as solids, level remote monitoring on anything from corn flakes to sawdust. It’s fully submersible, corrosion-resistant, shock resistant ultrasonic sensors are housed in 316 stainless steel and all-around tough.

The Ranger One™ sensors contain a rugged transducer potted in stainless steel housing for long life. Outputs respond to measured distance and non-contact technology means nothing touches your materials. It’s also fully configurable with our software.

Ranger One includes our famous “Teach” feature for push-button configuration. You can quickly adjust, optimize, save, and clone your applications without calibration. The Ranger One™ has Multi-Sensor network capabilities using Smart Communications via Modbus protocol, RS-485. The Ranger One™ would typically replace conventional ultrasonic level sensors PLUS proximity sensors and proximity switches.

Flocorp LTRP-1 Ranger One Features and Benefits

  • Long-range, short dead band
  • Unaffected by optical factors like color and transparency
  • PC or button “teachable” setup
  • Narrow beam adjustments to optimize performance
  • Temperature-compensated
  • Quick mounting
  • 1.18 inch (30 millimeters) type 316 stainless steel housing
  • Sealed epoxy potting for wet and dirty applications
  • A ruggedized piezoelectric ultrasonic transducer, potted in place

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Flocorp LTRP-1 Ranger One Specifications

Maximum Range 14 feet (4.3 meters) Update Rate 20 Hz (50 ms), Software adjustable; also affected by Software filter selections

Optimum Range

4 inches – 10 feet (102 millimeters – 3



Output Selection

Voltage Voltage & 4-20 mA current loop

(defaults), switches, or a combination

Process Connection 30 x 1.5mm Thread

Voltage Output

0-10, 0-5 VDC or PC customized, 10 mA max; also push-button teachable endpoints



Better than 0.5% of target distance in stable, homogeneous air environment; affected by temperature gradients, target echo strength, speed of sound in vapors.

Current Loop

4-20 mA or PC customized, current sourcing, max. loop 450!, teachable endpoints

Power Input

10 – 30 VDC @ 60 mA maximum; typical

45 mA @ 24 VDC

Sinking Switch 150 mA max. @ 40 VDC max., teachable set point & polarity, fault indication
Temperature -40° to 158° F (-40° to 70° C)
Sourcing Switch 150 mA max. @ input voltage, teachable set point & polarity, fault indication
Humidity 0 to 100% operating
RS-232, RS-485 Modbus protocol, 9600 to 115200 baud,

8 data bits, 1 stop, no parity

Compensation Temperature Compensation
Adjustment Button “teach” or software
SYNC Feature Permits up to 32 sensors to operate in

close proximity without interaction

Configuration Stored in non-volatile memory
Outputs Two selectable, plus serial data Target Requirements



Current / Volt Output or Switched Outputs

Out puts on the black and white wires are software selected. The black wire options are 4-20mA current loop or switch. White wire options are 0-10 VDC or switch. Switches can be sourcing or sinking. Max current loop resistance is derated below 15 VDC input voltage.
Objects Detects flat or curved objects. Surface must reflect ultrasound to sensor


Max. Distance

Affected by size, shape, orientation of target (sound level reflected back to sensor), environment. Restrict use to Optimum Range when using over a wide range of environmental conditions
Protection NEMA-4X, NEMA-6P, IP68
Orientation Flat surfaces should be oriented

perpendicular to sensor output beam

Transducer Ruggedized piezoelectric


Unaffected by target color, light, transparency or other optical characteristics


Digital: 0.0034 inches (0.086 millimeters); Analog:4099 steps (0-10 VDC), 3279 steps (4-20 mA)
Specifications are subject to change without notice.



Greater of +/-0.03 in. (0.76 mm) or Nominal 0.2% of range @ constant temp. Affected by target, distance, environment

Download Datasheet: Ranger One™ LTRP-1 Ultrasonic Level Transmitter (up to 14ft), FLocorp-Level Transmitter

Ref: Flo-corp.com