Precision Level & Flow Controls
80-GHz Radar, Ultrasonic & Pump Protection
Radar, ultrasonic, pressure, guided-wave, flow meters, switches, and multi-parameter controllers — engineered, specced, and supplied by Liberty to eliminate overflows, protect pumps, automate chemical feed, and give you real-time SCADA visibility.
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Doing It Yourself vs. Specifying With James Riggins
| Factor | Doing It Yourself | With James Riggins |
|---|---|---|
| Tech Selection | 8–16 hrs research | 2–4 hrs matched to media/geometry (60–80% saved) |
| Mounting & Echo Handling | Trial-and-error | Verified nozzle length, dead-band, false-echo map |
| Pump Interlocks & Dry-Run | Reactive trips | Proactive thermal switch + trip logic |
| SCADA Scaling & Comms | Rework & rescaling | First-pass 4–20 mA / HART / Modbus mapping |
Level & Flow Control Lineup
80-GHz Radar — Flowline EchoBeam LR80/81/83/85
Range: 10–120 m · Outputs: 4-20 mA / HART / Modbus · Materials: PVDF / PFA antenna · Setup: LevelTap™ App
Reflective Ultrasonic — EchoPod UG / EchoTouch US
Range: 3–12 m · Outputs: 4-20 mA + relays · Resists condensation · Mount: 2" NPT
Pressure Level — Flowline LD Series
Enclosures: NEMA 6P / 4X · Range: to 10.6 m · Materials: 316SS / PTFE / FEP · Use: lift stations & corrosives
Guided-Wave Radar — LG10 / ICON GWR
Range: to 3 m (rod/coax) · Materials: 316L / FEP · Foam, vapor, turbulence tolerant
Thermal Low-Flow Switch — FT10
Trip: 0.04–3 fps (adjustable) · Wetted: PP / PVDF · Enclosure: NEMA 4X · Role: pump dry-run protection
Flow — Insertion Mag (Hayward HEX800)
1"–12", 0.28–20 fps · 4-20 mA + display · PVC, Hastelloy C · Built-in rate/total; 24 VDC
Flow — Paddlewheel (Blue-White F-1000/F-2000)
3/8"–12", up to 8000 GPM · Battery / 4-20 mA / alarms · NEMA 4X; batching options
Multi-Param Controller — Hayward HMC200/HMC300
1–8 channels · Analog + relay outputs · Panel/rail; display + alarms
Frequently Asked Questions
Why does level sensor selection matter for chemical tanks?
The wrong technology causes false echoes, dry-run events, and overflow incidents — 80-GHz radar, ultrasonic, pressure, and guided-wave radar each suit different media, geometry, and vapor/foam conditions.
What does a thermal low-flow switch do?
It provides pump dry-run protection by tripping at a low flow threshold (typically 0.04–3 fps, adjustable), shutting down or alarming before a pump runs dry and damages itself.
What output protocols do these level and flow instruments support?
Most instruments in this lineup support 4–20 mA analog output plus HART or Modbus digital protocols for direct SCADA integration.
Get this spec'd right the first time
Send LibertyCES your process conditions — James matches technology, materials, and controls to your exact application.
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].