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Diffraction Limited (Maxim DL) Boltwood Cloud Sensor II - Fixed Observatory 150' |
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Diffraction Limited (Maxim DL) Boltwood Cloud Sensor II - Fixed Observatory 150'
The Boltwood Cloud Sensor II will trigger an electrical contact closure when heavy clouds, high winds, or precipitation is detected - even if the computer is not operating.
Item# DCLDSNSR150
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Diffraction Limited (Maxim DL) Boltwood Cloud Sensor II - Fixed Observatory 150'
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Monitor your fixed observatory like a pro with the Boltwood Cloud Sensor II!
- Moisture
detector detects rain or snow and even knows when it's daylight and can
be set to automatically close the roof to prevent any possibility of
sunlight entering the telescope.
- The Boltwood Cloud Sensor II
also measures wind speed, using a specially-designed anemometer, and
will warn you when winds speeds are too high for safe operation of the
observatory.
- The sensor continuously monitors the clarity of the skies and triggers appropriate alerts on your computer.
- The Boltwood Cloud Sensor II
will trigger an electrical contact closure when heavy clouds, high
winds, or precipitation is detected - even if the computer is not
operating.
- It's the ultimate "watch dog" for your precious equipment!
- This unit includes a 150 foot cable.
Boltwood Cloud Sensor II for Fixed Observatories
The Boltwood Cloud Sensor II measures the amount of cloud cover by
comparing the temperature of the sky to the ambient ground level
temperature. The sky temperature is determined by measuring the amount
of radiation in the 8 to 14 micron infrared band. A large difference
indicates clear skies, whereas a small difference indicates dense,
low-level clouds. This allows the sensor to continuously monitor the
clarity of the skies, and to trigger appropriate alerts on your
computer.
The Boltwood Cloud Sensor II also includes a moisture sensor which
detects rain and snow. To prevent false alarms due to frost or dew, a
heater keeps the sensor slightly above ambient temperature. When rain or
snow falls, the sensor is automatically heated to 70 degrees Celsius.
This clears the sensor quickly when the precipitation ends, and ensures
that the sky-measuring thermopile has a clear view.
The Boltwood Cloud Sensor II now measures wind speed, using a
specially-designed anemometer with no moving parts. The sensor will now
warn you when winds speeds are too high for safe operation of the
observatory. Plus the sensor now detects daylight and can be set to
automatically close the roof to prevent any possibility of sunlight
entering the telescope. The Boltwood Cloud Sensor II now also measures
humidity, and provides a continuous readout of temperature, humidity,
and dew point.
The included Clarity II Windows software monitors the sensor via a USB
interface. It displays and logs all sensor information. Alerts can
appear visually, or with sounds from either the PC speaker or sound
card. The user can choose to be alerted for clouds, wind, and/or
wetness; all with adjustable thresholds. The computer display can be set
for a mini status window or a full information display.
The sensor unit itself will trigger an electrical contact closure when
heavy clouds, high winds, or precipitation is detected. When connected
to a dome or roof controller, this contact can be used to trigger
closure even if the computer is not operating. This provides a 'last
line of defence' against damage to your observatory equipment. The
thresholds for roof closure are set through the Clarity software.
Boltwood Cloud Sensor II for Fixed Observatories Features...
- Cloud Sensor Graph II software is now included. This provides a
continuous graphical plot of the sky conditions, temperature, wind,
humidity, etc.
- ActiveX and file interfaces are provided for integrating the Clarity II software into your observatory control system.
- The complete package includes sensor with mounting bracket
(shown attached to a pole), cable, adapter box, universal AC power
supply with international plugs, USB cable, protective cover, and PC
software.
Words on the Boltwood Cloud Sensor II...
"I just wanted to let you guys know the Boltwood sensor is by far the
coolest and most practical astronomy accessory I have purchased to
date. I am very impressed with its accuracy. The down side is since I
got it, I am now looking for cloudy skies and rain just so I can see it
work its magic! It caught me off guard when it displayed a "Snow"
message. I peeked outside and sure enough, it really was snowing! How
cool is that?!!! Now I no longer have to worry about falling asleep and
leaving the dome open! This device is an absolute must have for any
computerized observatory!" -- Marcus Thompson
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