Ultrasonic Sensor
Loop Powered Ultrasonic Sensor - Image 2
Loop Powered Ultrasonic Sensor - Image 3
Loop Powered Ultrasonic Sensor - Image 4
Loop Powered Ultrasonic Sensor - Image 5
Loop Powered Ultrasonic Sensor - Image 6
Loop Powered Ultrasonic Sensor - Image 7
Loop Powered Ultrasonic Sensor - Image 8
Ultrasonic Sensor

Loop Powered Ultrasonic Sensor

LPU-2127

Hazardous Area Certified with Integrated Keypad

The LPU-2127 Loop-Powered Ultrasonic Sensor is a hazardous area-certified device with an integrated keypad and LCD display, allowing for easy programming without a computer. Designed for fast wiring and simple setup, this CSA-certified ultrasonic level sensor operates reliably in harsh environments with its chemical-resistant PVDF housing.

The LPU-2127 is ideal for liquid and solid level measurement, offering an operating range of up to 25 feet for liquids and 10 feet for solids with ±0.25% accuracy. It features loop-powered 4-20mA output, temperature compensation, and IP65-rated protection.

  • Loop-powered: for simplified wiring
  • Integrated keypad and LCD display: for easy setup
  • Hazardous area certified: (CSA Class 1, Div. 2, Groups C & D)
  • Durable PVDF housing: for chemical resistance in harsh environments
  • Measurement range: 1-25 ft (liquids), 1-10 ft (solids)
  • Accuracy: ±0.25% of detected range
  • 4-20mA output: with 12-28VDC supply voltage
  • IP65 protection rating: for rugged environments

ⓘ

LPU-2127 Datasheet

LPU-2127 User Manual

LPU-2127 Install Guide
  • Operating Range: 1 – 25 ft. (0.3 – 7.6 m) on liquids 1 – 10 ft. (0.3 – 3 m) on solids
  • Beam Pattern: 9º off axis
  • Internal Temperature Compensation: Yes
  • Frequency: 69 kHz
  • Accuracy: ±0.25% of detected range
  • Resolution: 0.1 in. (2.5 mm)
  • Response Time: Dependent on output ranges from 0.6 – 3 seconds
  • Sample Rate: 3 seconds at 4mA – 0.6 seconds at 20mA
  •  Ratings: IP65
  • Operating Temp: -40º – 140ºF (-40º – 60ºC)
  • Cable Connection: 2-terminal connector
  • Total Current Draw: 4-20 mA
  • Supply Voltage: 12-28 VDC
  • Integrated keypad and LCD display
  • Output:
    • 4-20 mA (loop-powered)
    • 600 ohms @ 24 VDC
    • 150 ohms @ 12 VDC
  • PVDF (Kynar®) transducer housing
  • PET upper housing
  • Transducer Type: Ceramic, PVDF face
  • Class 1, Div. 2, Groups C & D
  • Class 1, Zone 2, AEx nA IIB T6
What is the LPU-2127 Loop-Powered Ultrasonic Sensor used for?

The LPU-2127 is designed for accurate liquid and solid level measurement in industrial applications. It operates in harsh environments with its chemical-resistant PVDF housing and is CSA-certified for hazardous areas.

This sensor is loop-powered, meaning it operates on a 4-20mA current loop with a 12-28VDC supply voltage, simplifying wiring and installation.

The sensor provides ±0.25% accuracy of the detected range, ensuring reliable level measurements.

Yes, it is CSA-certified for hazardous locations, rated Class 1, Div. 2, Groups C & D, and Class 1, Zone 2 Certified.

Yes, the sensor housing is made of durable PVDF, which offers high chemical resistance for use in challenging environments.

Yes, it is compatible with the RST-5003 remote display, allowing for remote monitoring and configuration.

Yes, the sensor includes temperature compensation to ensure accurate readings in varying environmental conditions.

MOUNT

2"
RANGE

1' – 15', 1' – 25'
OUTPUT

4-20 mA
CERTIFICATION

CSA – General
INDUSTRY

Chemical, Food & Beverage, Industrial Automation, Marine, Oil & Gas, Water & Wastewater
ENCLOSURE PROTECTION

IP65

WARRANTY

APG warrants its products to be free from defects in material and workmanship under normal use and service of the product for 24 months from the date of shipment from APG, unless otherwise specified by APG in writing. Read our full warranty policy HERE.

RETURNS

Returns and allowances must be authorized by APG in advance, which authorization may be granted or withheld by APG in APG’s sole and absolute discretion. Read our full return policy HERE.

Suggested Products

Intrinsically Safe Ultrasonic Level Sensor

LPU-2428

Intrinsically Safe Ultrasonic Level Sensor
$0.00
Intrinsically Safe Modbus Ultrasonic Level Sensor - MNU ISIntrinsically Safe Modbus Ultrasonic Level Sensor - MNU IS

MNU-IS

Intrinsically Safe Modbus Ultrasonic Level Sensor
$0.00
Mid Range Pump Control Ultrasonic Level Sensor

DST

Mid Range Pump Control Ultrasonic Level Sensor
$0.00
Ultrasonic Level Sensor

MNU

Modbus Ultrasonic Level Sensor
$0.00