2700 Single Point Ultrasonic Level Switch
SOR's newest ultrasonic level switch (2025): no moving parts and no calibration, with failsafe, time delay and self-test as standard, FM explosion-proof, up to 135 bar and -40 to 121 °C.
Built to order to your specification and supplied by Ronsor Engineering, the sole distributor of SOR in Singapore · +65 6779 2818 · Not sure it's the right one? Try the Product Finder
The 2700 Series is SOR's newest ultrasonic level switch, launched in 2025. It brings together features that were spread across SOR's earlier models, the 701, 711 and 721 and the 712 and 722, and makes them standard in one platform. The dual point version adds a second set point.
A pair of crystals faces each other across the sensor gap: one sends an ultrasonic signal and the other receives it. When liquid fills the gap the signal gets through much more strongly, and the relay changes state. With no moving parts there is nothing to stick or wear, no calibration is needed, and maintenance is an annual visual inspection.
Standard on every unit
- Field-selectable failsafe
- Adjustable time delay of up to 30 seconds, to ignore splashing and surges
- Self-test that checks the connection to the control system
- LEDs that show the configuration and relay status, visible through an optional glass window without opening the cover in a hazardous area
- FM explosion-proof approval
Typical uses
- Barrier fluid level in mechanical seal pots
- Feedwater heater level
- High and low level alarms on chemical and process tanks
- Oil and gas, water treatment and chemical processing
Key specifications
- Pressure 0 to 2000 psi (0 to 135 bar); temperature -40 to 121 °C (-40 to 250 °F)
- Sensors: "U" vertical gap or "N" horizontal notch; 316 stainless steel standard, exotic materials available
- Approvals: FM, CRN
- Supplied as electronics, head and sensing probe: connect the cable, wire the terminals and power it up
- 3-year warranty
Built to order. Tell us the liquid, the pressure and temperature, the connection and the area classification, and we'll configure it with SOR.
