Boltwood Cloud Sensor III

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Product Overview

Powerful Sensor Technology
The primary sensors used for determining safe/unsafe observing conditions are cloud detection, rain detection, wind speed limits, and daylight. The user can also set limits on other parameters, including humidity, temperature, etc.

The Boltwood Cloud Sensor III will trigger a contact closure (relay) output when it detects adverse conditions. When connected to an observatory roof controller such as the MaxDome II system, this will cause the observatory to close. Note that this will not park your telescope or other equipment.

The Perfect Software
Many users use software to operate the observatory in response to the weather conditions. Diffraction Limited makes Cyanogen Imaging® MaxIm DLTM software, that includes a flexible observatory shutdown capability.

Connect Anywhere

The Boltwood III can operate as a WiFi hotspot or connect directly to your wireless network. There are three different connectivity options available:

  • The Boltwood III connects via standard WiFi connectivity for multiple clients.
  • The Boltwood III-S includes WiFi connectivity and RS-232 serial ports, providing a dedicated hard-wired connection.
  • The Boltwood III-SO connects only the RS-232 serial port, which is more appropriate for more secure environments or where 2.4GHz WiFi radio signals are not desirable. All RS-232 Serial versions include a 50-foot (~15m) serial cable.

Powered. Always.
The sensor operates from a 10.5V to 24V DC power source, making it compatible with 12V solar-charged battery systems. A universal AC adapter and extension cable comes standard to connect with available central power locations.

The sensor detects:

  • Clouds
  • Rain Drops
  • Wet snow
  • Wind Speed
  • Temperature
  • Humidity
  • Dew Point
  • Barometric Pressure
  • Daylight
  • Input Voltage

Approximate Dimensions:
Body 7.5” tall x 4” diameter (190 mm x 100 mm)
Optional Anti-Bird Wires add 1” (25 mm) Mounting Bracket 2.5” from center axis (65 mm)
DC Input Power: 10.5VDC to 24VDC, 1A Maximum
AC Adapter: 100VAC to 250VAC, 50/60 Hz
Power Connector: Barrel style, 2.5 mm ID, 5.5 mm OD, unpolarized Example: DigiKey CP3-1001-ND
Roof Close Connector: Barrel style, 1.3 mm ID, 3.5 mm OD, unpolarized Example: DigiKey EP505B-ND
Roof Close Circuit Rating: 12V, 1A
WiFi Communications: IEEE802.11b/g/n
Center Frequency Range: 2412 ~ 2484 MHz
Country Policy: Automatic configuration based on network station


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