Make the most of clear skies.
The newly-designed Boltwood Cloud Sensor III is the must-have weather monitoring device for astronomical observatories. Designed to protect your most valuable equipment from weather damage, the Boltwood Cloud Sensor III can sense wind, rain, and more while enabling automatic observation scheduling through your favourite observatory control applications.
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.
Boltwood Cloud Sensor III communicates via a WiFi connection. It can operate as a WiFi hotspot or connect directly to your wireless network. It provides browser-based status and configuration screens. It also provides ASCOM Alpaca ObservingConditions and SafetyMonitor interfaces, enabling direct access to sensor readings by ASCOM-compatible astronomical software packages.
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:
- Rain Drops
- Wet snow
- Wind Speed
- Dew Point
- Barometric Pressure
- Input Voltage
Specifications: Boltwood Cloud Sensor III
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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