Intrinsically Safe Ultrasonic Level Transmitter with 4-20 mA Output
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.
Description
Intelligent and highly configurable. The LPU-2428 can calculate distance, level, flow, and volume in linear and non-linear tanks.
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.
Maintenance-Free
With a tough, IP65-rated housing, its hazardous rating, and non-contact measurement, the LPU-2428 takes care of itself.
Common Model Configurations
All common model configurations can be purchased online, click the model number link below. Refer to Model Number Configurator on the datasheet for a full list of configuration options.
| Model Number | Model Description |
| LPU-2428-C6 | 6 ft. cable |
Additional model configurations available on our online store.
Datasheets & Downloads
Specifications
Performance
Operating Range
1 to 25 ft. for liquids
1 to 10 ft. for solids
Accuracy
±0.25% of detected range
Resolution
0.1 in.
Response Time
From 0.6 to 3 sec. (programmable)
Electrical
Supply Voltage
12-28 VDC
(loop current 4-20mA)
Approvals
Certifications
CSA 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
T6
Connectivity
Output
4-20mA
Cable
2-conductor shielded
Internet Connectivity
with RST-5003
Programming
Method
RST-4101 Programming Module
Calculations
Distance, Level, Volume, Flow
Tank/Channel Adjustments
32-point linearization table
Physical
Housing
PVDF transducer housing & threads
PET upper housing
Mounting
2 in. NPT
Environmental
Operating Temperature
-40 to 140° F
Temperature Compensation
Internal
Protection Rating
IP65
How to Program an LPU-2428 Ultrasonic Sensor for Open Channel Flow
How-to Replace a Submersible Transducer with the LPU-2428
How to Program the LPU-2428 Ultrasonic Sensor to Measure Volume
How to Program the LPU-2428 Ultrasonic Sensor to Measure Distance
How to Program the LPU-2428 Ultrasonic Sensor to Measure Level
How to Wire APG's LPU-2428 Ultrasonic Sensor to the RST-4001 Programming Module