AGP Intrinsically Safe Ultrasonic Level Transmitter LPU-2428

AGP Intrinsically Safe Ultrasonic Level Transmitter LPU-2428

Hazardous Locations Meet High Programmability. Made for highly configurable measurement in linear and non-linear tanks and channels, the LPU-2428 can internally calculate distance, level, flow, and volume. Intelligent and highly configurable. The LPU-2428 can calculate distance, level, flow, and volume in linear and non-linear tanks. With Class 1 Division 1 ratings, the loop powered LPU-2428 is built to handle the most hazardous locations. Add the ability to internally calculate volume or open channel flow data, and you have a unique and powerful ultrasonic sensor.

Programmable Intelligence

The LPU-2428 was made with intelligent software for highly configurable measurement. The sensor can calculate distance, level, flow, and volume. In addition, the sensor features a 32-point linearization table for non-linear tanks and channels.

Class 1, Div. 1

This loop powered sensor is suitable for use in hazardous areas rated CSA Class 1, Div. 1.


With a tough, IP65-rated housing, its hazardous rating, and non-contact measurement, the LPU-2428 takes care of itself.


  • Loop powered 4-20 mA output
  • Class 1 Division 1, Intrinsically Safe rating
  • Built-in calculations of current volume, flow, and flow totals


  • CI, D 1 Hazardous Locations
  • Open-channel Flow
  • Non-linear Tanks
  • Dam Tail-water Levels
  • Irrigation Channel Level or Flow

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Operating Range1 to 25 ft. for liquids
 1 to 10 ft. for solids
Accuracy±0.25% of detected range
Resolution0.1 in.
Response TimeFrom 0.6 to 3 sec. (programmable)


Supply Voltage12-28 VDC
 (loop current 4-20mA)


CertificationsCSA C/US
 Class 1, Div. 1, Groups C & D
 Class 1, Zone 0, AEx ia IIB T3
 Class 1, Div. 2, Groups C & D
 Class 1, Zone 2, AEx nA IIB


Cable2-conductor shielded
Internet Connectivitywith RST-5003


MethodRST-4101 Programming Module
CalculationsDistance, Level, Volume, Flow
Tank/Channel Adjustments32-point linearization table


HousingPVDF transducer housing & threads
 PET upper housing
Mounting2 in. NPT


Operating Temperature-40 to 140° F
Temperature CompensationInternal
Protection RatingIP65

Download Data Sheet: Intrinsically Safe Ultrasonic Level Transmitter LPU-2428