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CT25K Ceilometer

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The CT25K's unique single-lens design ensures excellent performance at low altitudes, which really counts for aviation safety. Starting at a height of virtually 0, the Vaisala CT25K Laser Ceilometer measures cloud height-or vertical visibility if the cloud base is obscured. The single-lens design also ensures reliable measurements in fog, rain, snow and haze. No field adjustments needed.

The CT25K can be tilted on its base allowing the beam to be directed manually in any direction between -15 to+90°. The systems is fully automatic, transmitting messages of cloud height and instrument status to the controller. Its software includes an extensive set of self-diagnostic routines to ensure reliable operation. The CT25K can be used stand-alone or as an integrated sensor in a weather observation system.

* Unique single-lens optical design
* Measurement range up to 7.5 km (25,000 feet)
* Reports up to three cloud layers simultaneously
* Operates reliably in all weather
* Requires very little maintenance
* Approved by the FAA

Please call or email us for an updated quote on this item. This product is no longer in production and Vaisala now suggest use of the CL-31. However, we can support this equipment and supply any spare parts as necessary.

Technical Details:

Performance:
>Measurement range: 0 to 25000 ft (acquisition time 15s)
>Resolution: 50ft
>Range gates: pulsed diode, InGaAs MOCVD
>Wavelength 905nm
>Eye Saftey: Class WM EN60825, Class 1 12CRF1040
>Meaurement cycle: programmable 15 to 120 seconds

Electrical:
>Power: 100/115/230 VAC, max. 400W inc. heating, +- 10%, 45 to 60 Hz
>Interfaces: Two serial lines, RS-232 RS-485, RS-422, Modem Bell/ITU-T 300 to 9,600Bd, Modem Bell, Bell 212A, ITU-T.21, V.22, V22bis

Data Messages:
>cloud hits and status only
>cloud hits, status, internal monitoring data and full backscatter profile
>sky condition

Output Options:
>DD50 digital display
>Graphic PC display software CT-VIEW
>DR23 chart recoder

Mechanical:
>Dimensions: total - 1335 H x 447 W x 378 D mm, unit - 672 H x 308 W x 244 D mm
>Weight: total - 35 kg, measurement unit - 16 kg
>Installation to the single-leg pedestal as standard, allowing tilting between -15 +90°
>Automatic window heater and protection shield

Environmental:
>Temperature range: -50 to +60°C
>Humidity: 0 to 100%
>Protection class: IP65
>Vibration during operation: 0.5 G, 10 to 500 Hz (IEC68-2-6 FC)
>EMC/EMI: CISP 22B/FCC 15 Part J or IEC 801-4 level 3
>Static: 8KV (IEC801-2 level 4)
>Wind: Gusting up to 60m/s
>Electrical saftey: EN60950

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