Model ULSS/ULSM/ULSL Ultrasonic Level Sensor
Brand: Dwyer Instruments, LLCThe Series ULSS Ultrasonic Level Sensors provides non-contact, continuous ultrasonic level measurement of fluids for short range applications.
It has a 4.1' (1.2 m) measuring range with a 0.125" (3 mm) accuracy. 
The Series ULSM Ultrasonic Level Sensors provides non-contact, continuous ultrasonic level measurement of fluids for medium range applications.
It has a 9.8' (3 m) measuring range with a ±0.2% of range accuracy. 
The Series ULSL Ultrasonic Level Sensors provides non-contact, continuous ultrasonic level measurement of fluids for tall range applications.
It has a 18' (5.5 m) measuring range with a ±0.2% of range accuracy.
Features- Via free software, units can be programmed to transmit an output signal and operate four relays for control applications
 - Provides reliable, accurate, and non-contact level measurement of compatible liquids
 - Non-contact technology offers no moving parts to wear, jam, corrode, or get coated like contact technologies
 - Mapping software makes effective measuring surface only a 3" (76.2 mm) diameter column with no concerns of ladders, pipes, or other tank intrusions in the remaining sound cone
 - Ultrasonic technology paired with automatic temperature compensation provides accurate and reliable measurements in almost all conditions
 - Fail-safe logic is easily configured to custom applications via free software removing the need for target calibration
 - Full NEMA 6P submersible enclosure rating to ensure excellent product durability
 
Specifications
Accuracy
- ± 0.2 % of Range - ULSM & ULSL
 - 0.125" (3 mm) - ULSS
 
Ambient Temperature Range
- -35° to 60° C (-31° to 140° F)
 
Approvals & Certifications
- CE
 - RoHS
 
BSP Connection
- 1" BSPP Male
 
Connection Material
- Polypropylene
 - PVC
 
Deadband
- Selectable (No Hysteresis, 1/4", 1/2", 1", 1/2 cm, 1 cm, 2 cm, 5 cm or Not Available)
 
Electrical Connectors
- 4' (1.2 m) 9-Conductor Shielded Cable
 
Electrical Rating
- 1 A at 28 Vdc
 
Enclosure, Body Material
- Polycarbonate
 - Thermoplastic Elastomers (TPE)
 
Environmental Protection
- IP68
 - NEMA 6P
 
Loop Resistance
- 400 ohms
 
Media
- Compatible Fluids
 
Mounting
- Bracket
 
NPT Connection
- 1" NPT Male
 
O-Ring Material
- FKM
 
Output
- 4-20 mA, 2-Wire, Invert: 4-20 mA or 20 to 4 mA
 
Power Requirement
- 12-28 Vdc
 
Process Temperature
- -7° to 60° C (20° to 140° F)
 
Programming
- Free PC Software Download (USB Adapter Required)
 
Resolution
- 0.019" (0.5 mm) - ULSS
 - 0.04" (1 mm) - ULSM
 - 0.079" (2 mm) - ULSL
 
Sensor / Probe Material
- PVDF
 
Sensor / Probe Style
- Ultrasonic
 
Sensor Orientation
- Vertical
 
Supply Pressure
- psi: 30 (kPa: 206, bar: 2)
 
Switch Type
- 4 SPST Relays
 
Welded Connection
- 2" Socket Weld End
 - 3" Socket Weld End
 - 4" Socket Weld End
 
- Water and wastewater
 - Pulp and paper processing
 - Sump and process tanks
 - Chemical processing
 - Food and beverage