LVSW-701 316 SS Single Point Ultrasonic Liquid Level Switch
ULTRASONIC SOLID STATE LIQUID LEVEL SWITCH
Supported Applications
The Omega LVSW-701 is a solid-state ultrasonic point level switch designed for top and side mounting applications to detect liquid levels. It serves as a direct replacement for mechanical float-type devices, utilizing proven ultrasonic technology with integral electronics. The series supports operation in virtually any liquid regardless of viscosity.
Operating Conditions & Performance
The LVSW-701 operates within a process temperature range of -29 to 71°C (-20 to 160°F) and handles pressures up to 1000 psig (6895 kPa). The device features fully epoxy-sealed electronics, eliminating issues associated with stickiness or finite mechanical life. Performance specifications include a repeatability of 2 mm (0.08") or better and a response delay of 0.5 sec.
Key Specifications
• Power Supply: 6 to 24 Vdc
• Output Signal: 1 A SPDT relay
• Leakage Current: Less than 50 uA
• Sensor Material: 316 LSS (Stainless Steel)
• Protection Features: Transient and reverse polarity protection
Configuration Options
The series is configured with a standard ¾" NPT process connection. The sensor construction utilizes 316 LSS wetted materials suitable for the specified pressure ratings.
Dimensions and Physical Configuration
• Overall Length: 4½" (114.3 mm)
• Sensor Width: 0.885" (22.5 mm)
• Sensor Length: 0.82" (20.8 mm)
• Gap Dimension: 0.312" (7.9 mm)
Electrical Connection Details
The unit includes a wiring configuration with specific color coding for function identification:
• V+ Input: Red wire (6 to 24 Vdc range per data sheet)
• V- Ground: Black wire
• N.C. Output: Brown wire
• C Common: White wire
• N.O. Output: Blue wire
• Chassis GND: Green wire
• Shield: Shielded cable
Key Product Differences
The LVSW-701 model is defined by its 316 LSS sensor material and 1 A SPDT relay output. The ordering structure allows for specification of the sensor material, relay type, and mounting configuration (e.g., ¾ NPT). This solid-state design distinguishes it from mechanical float switches by removing moving parts that are subject to wear or sticking in viscous media.
| Accuracy | ± 0.04 inH2O |
| Leakage Current | < 50 µA |
| Operating Pressure, Max | 1000 psi |
| Operating Temperature, Min | -29 °C |
| Process Connection Size | 3/4 in |
| Process Connection Type | NPT Male |
| Protection | Transient, reverse polarity |
| Repeatability | ± 0.02 inH2O |
| Series ID | LVSW-701-Switch |
| Supply Power Type | DC |
| Supply Voltage | 6 to 24 Vdc |
| Switch Rating | 1 A @ 60 or 120 Vac/Vdc |
| Switch Type | SPDT NO/NC, Selectable |
| Time Delay | 0.5 sec |