200-WS-21-A Dual Set Point Wind Alarm 
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| 200-WS-21-A Dual Set Point Wind Alarm | Wind Alarm Display |
The 200-WS-21-A Dual Set Point Wind Alarm is a microprocessor-based wind alarm system. It sounds an alarm and controls the operation of two electrical relays whenever wind speed reaches either of two independently user selected limits. It has 0 to 100 mph wind speed measurement and alarm range. A liquid crystal display provides a readout of the measured wind speed, maximum wind speed, and it is also used to display the menus for the user to select the alarm parameters.
Each of the two set point alarms control a self-contained Form "C" electrical relay. These relays may be used to control small electrical devices or to control external power relays for high current or inductive loads. An audible alarm, which may be user silenced, is also included within the WS-21-A. To eliminate erratic or premature operation of controlled devices, the WS-21-A includes provision for setting a delay or confirmation interval prior to initiation of an alarm and also a delay time prior to negating an alarm.
All set points and the maximum wind speed value are stored in non-volatile memory so that these values are not lost if there is a power failure. The circuits are designed to have high electrical noise immunity to transient spikes generated by loads being switched with the alarm relays. The unit restarts in the running mode after a power failure.
The 200-WS-01B Anemometer is a compact three-cup unit which conveniently mounts on a 1.062" o.d. pipe (3/4" I.P.S. pipe). The contactor-type speed transducer permits use of an interconnecting cable of almost unlimited length.
Specifications
Wind speed transducer: Sealed magnetic switch
Measurement range: 0-100 mph
Survivability range: 125 mph
Average speed resolution: 0.1 mph
Starting threshold speed: 1 mph
Integration interval: 2 seconds
Measurement accuracy: 1 mph or ± 3% which ever is larger
Alarm ON and/or OFF delay: 0-99 seconds
Timing accuracy: ± 2%
Controls:
Protected push buttons that select:
Run or set values
Select menu items
Increment/decrement alarm settings
Reset stored maximum speed value
Rocker switches that select:
English or Metric units
Audio alarm on or off
Wind or Temperature mode
Indicators:
LEDs for alarm point 1 & 2
2 line x 16 character LCD
Display character size: 3 x 8 mm
Operating temperature: Control module only -20° to +50°C
Input power: 12V ac or dc
Current: 50 mA maximum
Alarm: Contacts rated 3A @ 24 Vdc / 115Vac
Form "C" (SPDT) configuration
Anemometer cable length: 40' standard, 2-conductor 24 AWG
Weight/shipping 1lb/2lbs
Manuals
200-WS-21-A Dual Set Point Wind Alarm
200-WS-01B Anemometer
Ordering Information
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Weather Stations
Wind Speed & Direction Sensors
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