Loop Powered Ultrasonic Sensor

LPU-2127

DESCRIPTION
Features

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

Description
Additional information

LPU-2127 Datasheet

LPU-2127 User Manual

LPU-2127 Install Guide

LPU CSA Certificate

Performance

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

Environmental

Ratings: IP65
Operating Temp: -40º – 140ºF (-40º – 60ºC)

Electrical

Cable Connection: 2-terminal connector
Total Current Draw: 4-20 mA
Supply Voltage: 12-28 VDC

Programming

Integrated keypad and LCD display

Connectivity

Output:
- 4-20 mA (loop-powered)
- 600 ohms @ 24 VDC
- 150 ohms @ 12 VDC

Physical

PVDF (Kynar®) transducer housing
PET upper housing
Transducer Type: Ceramic, PVDF face

Certifications

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.

How is the LPU-2127 powered?

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

How accurate is the LPU-2127?

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

Is the LPU-2127 suitable for hazardous environments?

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

Is the sensor resistant to harsh chemicals?

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

Does the LPU-2127 support remote connectivity?

Yes, it is compatible with Settler and Explorer, allowing for remote monitoring and configuration.

Does the LPU-2127 compensate for temperature changes?

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
MATERIAL	PC/PET

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.