Guided Wave Radar

Manufactured by BinMaster & Distributed by Wm. Neundorfer & Co.

Inventory level measurement for low-dielectric, dusty, and narrow vessels—bulk solids and liquids.

BinMaster’s authorized Rotary Point Level Indicator distributor for the Great Lakes region —
65 years specifying the right guided wave radar for your application.

WNC - Guided Wave Radar Level Transmitter

Get an application-specific recommendation

Tell us about your vessel. Wm. Neundorfer & Co. will spec the right guided wave radar—probe, mounting, and output—for your material, environment, and process.

or call (440) 350-7460

Trusted across the Great Lakes region since 1959

Local Inventory
stocked in Painesville, OH

65 Years of
Bulk Material Handling Expertise

Serving the Great Lakes Region
OH, PA, WV, NY

Key Specs

Technology

TDR

Time domain reflectometry

Measuring Range

Up to 100ft

Varies based on specific model

Accuracy

±0.08in (2mm)

Both GWR Models

Why guided wave radar is the right call when non-contact radar struggles

Reads low-dielectric materials other sensors miss

The guided signal travels along the cable or rod instead of through open space, so it measures reliably in materials with a dielectric constant as low as 1.3 — dry plastic powders, fine grains, and light bulk solids that weak-reflecting non-contact radar can lose.

The signal ignores dust, vapor, condensation, and noise

Because the pulse is guided down the probe, it shrugs off the conditions that fool open-air sensors — heavy dust during fill, steam and condensation, and the noise of material moving in and out of the vessel.

Fits narrow, chambered, and corrugated vessels

A rod or cable drops straight down where a radar beam would have nowhere clean to aim. That makes Guided Wave Radar a strong fit for narrow silos, bypass tubes and standpipes, and corrugated or chambered vessels.

One technology for solids, liquids, and liquid interfaces

The GWR-2000 handles powders and bulk solids; the GWR-3000 handles liquids and reports the oil/water interface in separators and tank farms. Both push data straight to a PLC, BinCloud, or Binventory.

Models

Two guided wave radar models, organized by application

Two BinMaster GWR models on the same TDR platform: the GWR-2000 for bulk solids and the GWR-3000 for liquids and interface measurement. Send us the application and we’ll spec it for you.

Model Highlight Best at
GWR-2000 Bulk-solids model.  Continuous TDR level measurement in vessels up to 100 feet tall with accuracy of ± 0.08 inches (2mm) Powders, granules, pellets, and other bulk solids in challenging conditions like high dust, air movement, or excessive noise
GWR-3000 Liquid level model. Measure levels at distances up to 75ft with an accuracy of ± 0.08 inches (2mm) Liquid storage tanks or standpipes often installed for tank metering at tank farms. It measures separation layers for interface measurement in tanks, bypass tubes, or standpipes.

Still narrowing it down?

Tell us about your vessel and material—we'll spec the right model for your application.

Configure your guided wave radar to your application

Every Guided Wave Radar is built to order. Probe style and length, mounting, and output are configured to your vessel, material, and control system. Not sure which configuration fits? Tell us about your application, and we'll spec the right mount for you.

Guided Wave Radar Level Sensor

The probe choice comes down to vessel height. A rigid rod suits shorter vessels; a flexible cable with a counterweight is suspended to the bottom of taller vessels. Each probe is cut to your vessel depth at the factory.

Probe Best at
Rigid Rod Shorter vessels and standpipes; the most rigid, lowest-maintenance option where height allows.
Flexible Cable Taller vessels up to the model’s full range; the counterweight stabilizes the cable in the vessel.

Guided wave radar mounts at the top of the vessel in an unobstructed area. Mounting connections and accessory plates cover flat and angled roofs and sanitary connections.

  • Process connections — ¾″, 1½″, or 2″ NPT; 2″, 3″, or 4″ ANSI flange (varies by model).
  • Angled roof plates — 1½″ NPT mounting plates in 0°, 5°, 10°, and 30° for flat or sloped silo tops.
  • Sanitary mounting — stainless-steel mounting plates for food, dairy, and pharmaceutical vessels.

Output/Platform Best at
4-20 mA/HART Direct to your PLC, HMI, or DCS — GWR data lives alongside flow, weight, and process variables in the existing control system.
Modbus TRU Digital communication into Modbus-capable controllers and BinMaster software, with multiple sensors on one network.
BinCloud Cloud-hosted inventory. View levels from any phone, tablet, or PC; multi-site rollups and automated text/email alerts.
Binventory 2.0 On-premise inventory on your local network — the right answer when IT policy keeps data off the cloud.

Not sure which mount fits your vessel?

Tell us about your vessel type, roof angle, and existing fitting size—we'll spec the hardware for your application.

Industries where the rotary is the point-level standard

Serving industrial facilities across Ohio, Pennsylvania, West Virginia, and Western New York since 1959. Find your application below — or tell us about your vessel and we'll spec the right model.

Grain and Feed

Corn, soybean meal, DDGs, and ground feed in elevators, feed mills, and ethanol plants. Guided wave radar holds accuracy on low-dielectric grain and in narrow silos where a radar beam has little to reflect off.

Common fit:
GWR-2000 + flexible cable for tall silos; 4–20 mA or Modbus RTU to the mill office

Plastics and Resins

Virgin and regrind resin pellets, masterbatch, and ground polymer in day tanks and rail-car silos. Dry, low-dielectric plastics are exactly where the guided signal pays off.

Common fit:
GWR-2000 + rod or cable; ResinView in BinCloud

Cement and Aggregate

Cement, fly ash, lime, and aggregate in batch plants and storage silos. The guided pulse cuts through heavy fill dust that challenges open-air sensors.

Common fit:
GWR-2000 + flexible cable; 4–20 mA to the batch system

Chemical Processing

Process and storage tanks, additive vessels, and reactors. Stainless wetted parts and FKM/FFKM/EPDM seals stand up to caustic and aggressive chemistry.

Common fit:
GWR-3000 + rod for short tanks; cable for tall; HART or Modbus RTU

Food & Beverage

Sugar, flour, starch, and milk powder on the solids side; sauces, oils, and ingredient liquids on the wet side. Sanitary mounting and stainless construction available.

Common fit:
GWR-2000 (powders) or GWR-3000 (liquids) + sanitary SS mount

Water and Wastewater

Treatment chemicals, lime slurry, and oil/water separators at municipal and industrial sites. The GWR-3000 reads the interface layer directly.

Common fit:
GWR-3000 + cable for interface and chemical tanks

Power Generation

Coal, fly ash, and limestone for FGD across regional generation facilities. The guided signal stays accurate through fill dust and condensation.

Common fit:
GWR-2000 + cable; 4–20 mA / Modbus RTU to the control room

Bioenergy and Wood

Wood pellets, sawdust, bark, and biomass at pellet plants and biomass-fueled facilities. Light, low-density material handled with a guided cable.

Common fit:
GWR-2000 + flexible cable for light bulk solids

Mining and Minerals

Lime, salt, fertilizer, frac sand, and pigment powders in storage silos and load-out bins. Low-dielectric pigments and minerals favor a guided signal.

Common fit:
GWR-2000 + rod or cable to suit vessel height

Don't see your exact industry?

Tell us about your vessel and material—we'll spec the hardware for your application.

FAQ

Choose guided wave radar when the vessel is small or narrow, when the material has a very low dielectric (down to 1.3) that weak-reflecting non-contact radar can lose, or when you need a liquid interface measurement — anywhere a contact rod or cable in the vessel is acceptable. Choose non-contact 80 GHz radar when the vessel is very tall or large, when material would build up on a rod or cable, when you want a non-intrusive sensor with no moving parts, or when maintenance access is limited. We sell both — send us the application and we’ll give you the honest answer, not the expensive one.

The GWR-2000 is built for bulk solids — powders, granules, and pellets in vessels up to 100 ft. The GWR-3000 is built for liquids and interface measurement in tanks, standpipes, and separators up to 75 ft, with stainless wetted parts and chemical-resistant seals. Both use the same TDR principle and the same 4–20 mA / HART / Modbus RTU outputs; tell us whether you’re measuring a solid or a liquid and we’ll spec the right one.

Yes — that’s a core reason to choose guided wave radar. Because the microwave pulse is guided along the probe rather than radiated through open space, the GWR-2000 measures solids with a dielectric constant as low as 1.3, including dry plastic powders and light grains that can be difficult for non-contact radar.

It comes down to vessel height. A rigid rod is used on shorter vessels and standpipes; a flexible stainless-steel cable with a counterweight is suspended to the bottom of taller vessels, up to the model’s full range. Each probe is made to your vessel depth at the factory. Tell us your vessel height and we’ll specify the probe.

Yes. BinMaster guided wave radars output a standard 4–20 mA analog signal and support HART for digital communication, plus Modbus RTU. These integrate with virtually all major PLC and DCS systems, including Allen-Bradley, Siemens, and Honeywell, and data can also feed BinCloud or Binventory. If you have a specific integration question, we can confirm compatibility before you order.

Yes. Both the GWR-2000 and GWR-3000 carry CSA / FM Class II, Div 2, Groups E, F, G approvals, and other approvals are available. Confirm your specific dust or area classification and we’ll help select the correct unit for your application.

Yes — the GWR-3000 reports the level of two separated liquids by detecting the difference in specific gravity between the layers, which makes it well suited to oil/water separators, bypass tubes, and standpipes at tank farms and petrochemical sites.

Yes. Wm. Neundorfer & Co. provides application visits across Ohio, Pennsylvania, West Virginia, and Western New York . We’ll look at the vessel geometry, the material, the mounting options, and the wiring path back to the control system, and you’ll have a written recommendation in your inbox within a few days.

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