Anemometers

C5C Series Compact Anemometers

The C5C Series cup anemometer is specifically designed for high wind speed applications and industrial use for wind monitoring and alarm systems. The C5C anemometer is machined from all corrosion resistant 316 stainless steel and light weight titanium bar stock, creating a lighter more compact profile. The C5C series anemometer has two ceramic shaft bearings which provide low friction and rolling resistance to give the anemometer a low wind starting threshold. Ceramic bearings also will not rust or lock up in harsh marine or coastal environments.

Two Styles of Rotors

The anemometer rotor assembly consists of the center hub, the three radial arms, and wind cups. The C5C series anemometer rotor is available in two model configurations. The model 63 has heavy duty deep drawn and micro-welded 316 stainless steel wind cups. The model 65 rotor has virtually indestructible one piece 316 stainless steel cast cups and gusseted rotor arms.

One Anemometer Two Outputs

Have one Arklay Richards C5C series anemometer but you need to connect the output signal cable to a PLC and also a wind alarm in another location. Its now possible. The C5CD-1263-2-SP anemometer has two separate signal cables which can now provide wind data to two wind displays or data recording instruments.

Richards C5CD-1263-2-SP dual output industrial anemometer.

C5C Series Anemometer Models

C5C-1263-2-SP – Single Output

Model 63 responsive industrial anemometer with heavy duty deep drawn stainless-steel wind cups with micro welded rotor arms.

Standard Features

  • Deep drawn and micro welded rotor arm and wind cups
  • Sensor mounts on .5″ O.D. standard tubing
  • Comes with integral 10 foot sensor cable
  • M8 circular connector instrument connection
  • Field removable reed switch (SP models)
  • Replaceable shielded ceramic bearings
  • Internal surge protection (SP models)

Output Signal Options (SP or AC)

  • Single reed switch pulse output specify part number C5C-1263-2-SP
  • Low level AC frequency output for low power wind monitoring applications specify part number C5C-1263-2-AC

C5CD-1263-2-SP – Double Output

Model 63 responsive industrial anemometer with heavy duty deep drawn stainless-steel wind cups with micro welded rotor arms.

Standard Features

  • Deep drawn and micro welded rotor arm and wind cups
  • Sensor mounts on .5″ O.D. standard tubing
  • Comes with integral 10 foot sensor cable
  • M8 circular connector instrument connection
  • Field removable reed switch (SP models)
  • Replaceable shielded ceramic bearings
  • Internal surge protection (SP models)

Output Signal Options (SP or AC)

  • Dual reed switch pulse outputs specify part number C5CD-1263-2-SP
  • Low level AC frequency output for low power wind monitoring applications specify part number C5C-1263-2-AC
Arklay S Richards C5C-1265-2-SP anemometer with rugged cast wind cups, ceramic bearings and single output shielded signal cable.

C5C-1265-2-SP

Model 65 industrial anemometer with one piece, virtually unbreakable cast stainless-steel wind cup and rotor arms.

Standard Features

  • Cast one piece rotor arm and wind cups
  • Sensor mounts on .5″ O.D. standard tubing
  • Comes with integral 10 foot sensor cable
  • M8 circular connector instrument connection
  • Field replaceable reed switch (SP models)
  • Replaceable shielded ceramic bearings
  • Internal surge protection (SP models)

Output Signal Options (SP or AC)

  • Single reed switch pulse output specify part number C5C-1265-2-SP
  • Dual reed switch pulse outputs specify part number C5CD-1265-2-SP
  • Low level AC frequency output for low power wind monitoring applications specify part number C5C-1265-2-AC
Richards C5C-7365-2-SP anemometer with Cerakote-coated cast stainless steel rotor and single pulse output.

C5C-7365-2-SP

Model 65 military grade anemometer with virtually unbreakable one piece cast stainless-steel cup and rotor arms in coyote tan Cerakote.

Standard Features

  • Cast on piece rotor arm and wind cups
  • Sensor mounts on .5″ O.D. standard tubing
  • Comes with integral 10 foot sensor cable
  • M8 circular connector instrument connection
  • Field replaceable reed switch (SP models)
  • Replaceable shielded ceramic bearings
  • internal surge protection (SP models)
  • Cerakote protected exterior

Output Signal Options (SP or AC)

  • Single reed switch pulse output specify part number C5C-7365-2-SP
  • Dual reed switch pulse outputs specify part number C5CD-7365-2-SP
  • Low level AC frequency output for low power wind monitoring applications specify part number C5C-7365-2-AC

Our Products Are Built to Last.

Arklay S. Richards is serious about our customer support and high quality delivery. When something goes wrong, we will replace your product no matter what – with the exception of bearings, which can be serviced and re-calibrated in our own wind tunnel. We place the highest priority on having a complete understanding of the particular wind application, site conditions, and our customer’s individual requirements.

Optional Feature Shown:

C-MMA-16-06 Compact Wind Sensor Mounting Adapter

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FAQs

Answer

Yes. The reed switch cartridge assembly can be unscrewed from the anemometer housing and replaced in the field with a new one. This modular design allows for quick field service without replacing the entire anemometer.

Answer

The difference lies in the wind cup rotor construction:

  • The C5C63 uses incredibly strong deep drawn and welded stainless steel cups, creating a strong, lightweight, highly responsive rotor.
  • The C5C65 uses a heavier one piece cast stainless steel cup and arm assembly, offering even greater durability and mass for harsh or high wind speed environments with the potential for impacts.

Answer

Both designs deliver accurate wind speed measurement in challenging environments, but each offers unique benefits:

C5C63 anemometer — Deep Drawn and Welded Stainless Steel Cups

  • Lightweight and fast responding.
  • Low inertia for quick reaction to changing wind conditions and wind spikes.
  • Ideal for applications requiring sensitivity to low wind speeds and gusts.

C5C65 anemometer — One Piece Cast Stainless Steel Rotor

  • Extremely rugged and impact resistant.
  • Designed for long term durability in harsh or turbulent environments.
  • The added mass provides natural damping of short gust spikes, reducing nuisance wind alarm triggers and improving stability in systems with shutdown relays.

Answer

The C5C Series anemometer provides industrial grade wind speed measurement for cranes, mills, marine systems, and other wind alarm and shutdown system applications. Its rugged stainless steel and titanium construction with reliable switch pulse output make it ideal for environments where accurate, realtime wind data is essential in industrial and high wind speed applications.

Answer

The C5C industrial anemometer uses a precision stainless steel and Titanium three cup rotor mounted on low friction bearings to convert wind motion into rotation. Inside the anemometer, a small permanent magnet passes a reed switch sensing element four times per revolution. Depending on the anemometer model, this produces one of two types of output signal:

  • SwitchPulse (Reed Switch) Output Signal
    As the shaft magnet inside the anemometer housing rotates past the reed switch, the magnetic field causes the switch contacts to momentarily close, generating a clean electrical pulse. The pulse frequency increases with wind speed, providing a simple, reliable signal for wind monitors and alarms such as the 490A wind alarm.
  • LowLevel AC Frequency Output Signal
    In coil pickup versions, the rotating shaft magnet induces a tiny alternating voltage in the coil mounted inside the anemometer housing. The voltage amplitude is small, but the frequency is directly proportional to rotor speed, allowing controllers to measure wind speed by counting AC cycles.

Both output types convert the anemometer’s wind cup rotor speed into an electrical frequency that represents true wind speed, making the C5C anemometer compatible with a wide range of industrial wind monitors, displays and control systems.

Answer

C5C series anemometers are precision CNC machined from stainless steel and titanium, providing exceptional durability in harsh weather and high wind environments. The design is engineered to withstand extreme wind conditions up to 230 MPH, making it suitable for exposed industrial and marine installations.

Answer

The C5CD anemometer includes dual independent switch pulse outputs, allowing two separate systems to receive wind speed data simultaneously. This is ideal for redundant safety systems in container cranes and radial stackers, where one channel may feed an operator wind speed display and the second feeds a shutdown controller or wind alarm module.

Additionally, the C5CD anemometer features two separate signal cables, each terminated with its own M8 connector, providing fully isolated routing for dual channel installations and simplifying integration into high wind speed safety critical control systems.

Superior Design, Superior Performance

From the peak of Mount Everest to 300 feet below the ground, our industrial anemometers and wind direction vanes are built for resiliency, precision, and durability.

Technical Specifications

Anemometer Part Numbers

  • C5C 1263-2-AC – AC Frequency Signal Output
  • C5C-1263-2-SP – Single Switch Pulse Signal Output
  • C5CD-1263-2-SP Dual Switch Pulse Signal Outputs

Component Materials of Construction

  • Shaft Tower, Housing, Arms & Cups (316 stainless steel)
  • Shaft (Hardened 316 stainless steel)
  • Rotor Hub (Titanium)
  • Bearings (Ceramic)

Anemometer Calibration Test Standards

  • ASTM D 5096-02 – Standard test method for determining the performance of a cup or propeller anemometer
  • ISO 17713-1 – Meteorology Wind Measurements Part 1: Wind tunnel test methods for rotation of anemometer performance

C5C-1263-2-AC Anemometer Performance

  • Maximum speed – 230+ mph or 102.82+ m/s
  • Distance constant @ 63% recovery – 35.30 ft or 10.76 m
  • Characteristic transfer function –  V [m/s] = .638 x f [Hz] + .725
  • Characteristic transfer function –  V [mph] = 1.4272 x f [Hz] + 1.62
  • Measuring range – 0 mph to 240 mph or 0 m/s to 102.82 m/s
  • Starting threshold all positions averaged – 2.70 mph or 1.21 m/s
  • Starting threshold @ optimum flow position – 1.54 mph or 0.69 m/s
  • Accuracy test range – 8.97 mph to 100.60 mph or 4.01 ms to 44.97 m/s
  • Accuracy within range with characteristic transfer function – 0.2 mph or 0.1 m/s

C5C-1263-2-SP Anemometer Performance

  • Maximum speed – 230+ mph or 102.82+ m/s
  • Reed switch pulse / sec output signal range – 0 to 322
  • Measuring range – 0 mph to 230 mph or 0 m/s to 102.82 m/s
  • Characteristic transfer function –  V [m/s] = .319 x f [Hz] + .725
  • Characteristic transfer function –  V [mph] = .7136 x f [Hz] + 1.62
  • Starting threshold all positions averaged – 2.70 mph or 1.21 m/s
  • Starting threshold @ optimum flow position – 1.54 mph or 0.69 m/s
  • Accuracy test range – 8.97 mph to 100.60 mph or 4.01 ms to 44.97 m/s
  • Accuracy within range with characteristic transfer function – 0.2 mph or 0.1 m/s

If you are looking for the finest industrial high speed wind sensors made, look no further.

With stainless steel and titanium construction, our anemometers outperform all others on the market. Current applications of our products include military and defense, asset protection, mining, oil rigs, meteorology, and much more.

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