Dwyer Model ULSM Ultrasonic Level Sensor, 9.8' (3 m) Range, 1 in. NPT thread

The Model ULSM Ultrasonic Level Sensor provides non-contact, continuous ultrasonic level measurement of fluids for medium range applications. Ultrasonic technology paired with automatic temperature compensation provides accurate and reliable measurements in almost all conditions. The Model ULSM has failsafe logic that is easily configured to custom applications via free software removing the need for target calibration. Using the free software, the Model ULSM can be programmed to transmit an output signal as well as set the four relays for control applications. This rugged design comes with a NEMA 6P submersible enclosure rating to ensure a long lasting unit. Applications: Water & Wastewater, Pulp & Paper Processing, Chemical Processing, Food & Beverage, Sump & Process Tanks.
Note: You do however, need a Series ULS, USB Fob and FKM gasket to configure, install and operate Series ULS. USB adapter is necessary for calibration. One adapter can program multiple units.

Features

• Has a 9.8´ (3 m) measuring range with a ±0.2% of range accuracy
• 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

• Service: Compatible fluids.
• Wetted Materials: Sensor, PVDF
• O-ring: FKM.
• Ranges: 9.8' (3 m).
• Accuracy :±0.2% of range.
• Resolution: 0.039" (1 mm)
• .Blind Zone: 4" (10 cm).
• Beam Width: 2" (5 cm).
• Temperature Limits: Process: 20 to 140°F (-7 to 60°C)
• Ambient: -31 to 140°F (-35 to 60°C).
• Temperature Compensation: Automatic.
• Pressure Limits: 30 psi (2 bar).
• Power Requirement: 12 to 28 VDC.
• Output Signal: 4 to 20 mA, 2-wire
• Invert: 4 to 20 mA or 20 to 4 mA;
• Fail-safe: 4 mA, 20 mA, 21 mA, 22 mA, or hold last.
• Loop Resistance: 400 Ω max.
• Electrical Connections: 4' (1.2 m) 9 conductor shielded cable.
• Contact Type: 4 SPST relays.
• Contact Rating: 1 A max @ 28 VDC max.
• Deadband: Selectable (no hysteresis, 1/4", 1/2", 1", 1/2 cm, 1 cm, 2 cm, 5 cm or not available).
• Process Connection: 1" NPT
• Enclosure Rating 6P (IP68).
• Enclosure Material: Polycarbonate
• Gland: TPE.
• Mounting Orientation: Vertical.
• Memory: Non-volatile.
• Failsafe: Contact: Power loss: Hold last contact
• Power on: Open, close, or last contact.
• Programming: Free PC software download (USB adapter required).
• Weight:1.5 lb (0.68 kg).Agency Approvals, CE & RoHS.

Downloads

Product Manual (PDF Download)

Product Manual (PDF Download)