Wind Alarms

Comptus Wind Alarms are recognized across many industries for their durability, accuracy, repeatability and are manufactured under ISO 9001:2008 compliant systems and procedures.

The Comptus C44 is a user configurable two set point wind speed alarm. The C47 wind alarm is a user-­configurable, 4 set point alarm with analog outputs.  The C-47 can be configured for both wind speed and wind direction signal inputs.

Each Comptus Wind alarm system includes a detailed instruction manual. Comptus Wind Alarms are manufactured in the USA.

C47 Wind Alarm Monitor in NEMA Enclosure

C47 Wind Alarm Monitor

Accuracy: Speed +/- 1 Unit, Direction +/- 4 degrees
Alarms:    4
Use: High Wind Warning, Membrane Roof, Building Pressure, Odor, Fountain Control

WIND ALARM FEATURES: 

  • Four Alarms
  • Adjustable averaging time
  • Two Wind Speed Inputs
  • One Wind Direction Input
  • Sensor Fault Detection
  • Analog Speed & Azimuth Outputs
  • Retains Configuration without electrical power
  • Back Lighted LCD Display
  • Instant, Average & Peak Speed
  • Display MPH, M/S or KPH Units of Speed
  • AC or DC Operating Power
  • Security Code
  • Protected with Metal Oxide Varistors

Alarms have an adjustable filter with time constant of 1-600 seconds to prevent nuisance tripping from wind speed gusts. Current, peak and average wind speed is displayed with user selectable units of miles per hour (MPH), meters per seconds (M/S) or kilometers per hour (KPH). Wind speed measurement timing is crystal controlled for high accuracy. 

Four alarms with single pole double throw (SPDT) relays are provided. Each relay is configurable for hysteresis or latch mode operation. The alarms can be individually disabled. In hysteresis mode the alarm is activated when the average wind speed exceeds the closure set point. The alarm remains activated until the average wind speed drops below the opening set point. In latch mode the alarm remains activated until the average wind speed exceeds the closure set point. The alarm remains activated until manually reset. 

One or two wind speed circuits are optionally available to provide redundancy in critical applications. Continuity of the anemometer circuit is tested every 10 seconds when the wind is calm. If the circuit fails open or is short circuited, a message is flashed on the display. 

Two analog output signals proportional to wind speed are optionally available. The analog output may be ordered with 4-20 mA, 0-1 mA or 0-1 VDC outputs. A screen is provided to simulate wind speed, which allows for system testing and calibration of the optional analog output signals. 

All set points and configuration selections are retained in EEPROM memory even when operating power is removed. A back lighted liquid crystal display (LCD) provides excellent readability in bright or low light conditions. 

A security code feature resists tampering with set points or control configuration by unauthorized personnel. The control can be ordered for operation from 120 VA., 230 VAC or 12 VDC electrical power. All inputs and analog outputs are protected from damage by high voltage transients with metal oxide varistors. The C47 can be provided to operate with anemometers producing an AC output signal whose frequency is proportional to wind speed. The C47 can also be provided to operate with anemometers whose DC output signal is proportional to wind speed. 

One wind direction input is optionally available with one analog output signal proportional to wind direction. The wind vane circuit is continuously monitored for continuity. If an open or short circuit is detected a message is flashed on the LCD screen.

 

TECHNICAL SPECIFICATION:

Operating Power: 

105 to 127 VAC, 50/60 Hz 
207 to 253 VAC, 50/60 Hz 
11 - 15 VDC

80 - 250 VDC

(specify at time of order)

Input Device: A75-104 Three Cup Anemometer 
Display: Liquid Crystal Display 16 characters X 2 Lines. LED Alarm Status Indicators on front panel 
Controls: Four button keyboard with tactile and visual feed back 
Outputs: Four SPDT Relays, 8 Amps resistive @ 120 VAC 
Two Analog Wind Speed Outputs 
One Analog Wind Direction (Azimuth) Output
Analog Output Format:   
4-20 ma, 0-1 ma or 0-1V (specify at time of order)
Control Accuracy: Wind Speed +/- 1 Unit
Wind Direction +/- 4 degrees
Analog Output: +/-1% of full scale
Sensor Accuracy: See sensor specifications
Resolution: Wind Speed- User selectable 1 MPH, 1 M/S or 1 KPH 
 Azimuth - 2°
Connectors: Barrier strip to accept AWG#12 to AWG#20 copper wire
Temperature: Electronics -20 to +60° C.
Sensors: -55 to +60° C (A75-104 & A75-302)
Maintenance: 

Check sensor calibration yearly

Dimensions:   
DIN Package: 1/4 DIN cutout x 5.75" deep 
NEMA 12 Package: 12"H x 10"W x 6"D 
NEMA 4X SS Package: 12"H x 10"W x 6"D 
NEMA 4X FG Package: 12"H x 10"W x 6"D
Weight:   
DIN Package: 2 pounds 
NEMA 12 Package: 16 pounds 
NEMA 4X SS Package: 16 pounds 
NEMA 4X FG Package: 8 pounds
Accessories:   
A96 Surge Protectors 
A70-LPDD Remote Display 
A76-T10 Tripod Tower 

C44 Wind Alarm Monitor in PC Enclosure

C44 Wind Alarm Monitor

Accuracy: 0.01% Accuracy (Electronics)
Alarms:     2
Use: High Wind Warning, Fountain Control

FEATURES: 

  • Adjustable time delays
  • Two Alarms
  • Anemometer Fault Detection
  • Current Wind Speed
  • Display MPH, M/S or KPH Units of Speed
  • AC or DC Operating Power
  • Security Code
  • Protected with Metal Oxide Varistors
  • Retains Configuration without electrical
    power

Alarms have an adjustable time delay from one second to two hours preventing nuisance tripping from wind speed gusts. Four user selectable time delay modes are provided: Delay On, Delay Off, Both and One Shot. In One Shot time delay mode the relay closes for the selected time period when the alarm condition occurs and opens at the end of the time delay period. The time delay period for each alarm is independently adjustable.

Current wind speed is displayed with user selectable units of miles per hour (MPH), meters per second (M/S) or kilometers per hour (KPH). Wind speed measurement timing is crystal controlled for high accuracy.

Two alarms with single pole double throw (SPDT) relays are provided. The alarm is activated when the wind speed exceeds the closure set point. The relay closes when the time delay is satisfied.

The alarm remains activated until the wind speed drops below the opening set point. The relay opens when the time delay is satisfied. All set points and configuration selections are retained in FLASH memory even when operating power is removed. 

A security code feature resists tampering with set points or control configuration by unauthorized personnel.

The control can be ordered for operation from 120 VAC, 230 VAC, 12 VDC or 24 VDC electrical power. All inputs are protected from damage by high voltage transients with metal oxide varistors. The C44 can be provided to operate with anemometers producing an AC output signal whose frequency is proportional to wind speed.

If an open or short circuit is detected in the anemometer circuit a message is flashed on the LCD screen.

The C44 uses a microcontroller to measure the frequency of the anemometer signal which is scaled to the units of wind speed selected by the user. At power up and during periods of no wind the control checks the anemometer circuit for continuity by measuring the circuit resistance.

The terminal block on the C44 can be unplugged to facilitate wiring.

The factory can provide custom control features to adapt the Notus to your system needs. Contact the factory with your requirements for assistance and costing.

TECHNICAL SPECIFICATION:

Operating Power: 

105 to 127 VAC,  50/60 Hz, 4VA 
207 to 253 VAC,  50/60 Hz, 4VA 
10.5 to 15 VDC, 3 W 
21 to 29 VDC, 3 W

80 to 250 VDC, 5W

(specify at time of order)

Input Device: A75-104 Anemometer. 
Higher performance sensors available
Displays: Liquid Crystal Display, 16 Characters
Controls:  Rotary Encoder, LCD Contrast
Output: Two SPDT Relays, 8 Amps resistive @ 120 VAC
Control Accuracy: Wind Speed + 1 Unit
Sensor Accuracy: See sensor specifications 
Resolution: Wind Speed - User selectable 1 MPH, 1 M/S or 1 KPH Azimuth – 2 degrees
Connectors: Barrier strip to accept AWG #12 to AWG # 20 copper wire
Temperature:  

Electronics -20 to +60 oC
Sensors -40 to +60 oC 
(A75-104)

Maintenance: Check sensor calibration yearly 
Dimensions: 1/8 DIN Package: 1/8 DIN
Cutout X 5.75” deep 
NEMA 12 Package: 8” H X 6” W X 3.5” D 
NEMA 4X SS Package: 8” H X 6” W X 34” D 
NEMA 4X FG Package: 8” H X 6” W X 4” D 
NEMA 4X PC Package: 7” H X 5” W X 3” D
Weight: DIN Package: 2 pounds 
NEMA 12 Package: 8 pounds 
NEMA 4X SS Package: 8 pounds 
NEMA 4X FG Package: 4 pounds 
NEMA 4X PC Package: 2 pounds 
Accessories A96 Surge Protectors
A76-T10 Tripod Tower
Heated Anemometer
Higher Performance Sensors

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