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Windspeed Ltd (Vector Instruments), 113 Marsh Road, RHYL, N. Wales, LL18 2AB, United Kingdom.
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 Friday, March 14 2025  Home [arrow]  Products [arrow]  Relative Humidity [arrow]  H301
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Latest Weather...
(Rhyl, N.Wales, UK)
Wind Speed:  3.5 mph
Wind Direction:  186 °
Air Temp.:  1.0 °C
Rel. Humidity:  96.2 %
Rain (last Hr):  0.0 mm
(updated at: 03:26 UTC)

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Celebrating more than 50 years manufacturing & servicing High Quality Vector Instruments Anemometers and Windvanes at Windspeed Ltd
H301 Aspirated Psychrometer
 
Datasheet: login to download NOTE: THIS PRODUCT IS NO LONGER AVAILABLE (MAY 2010).

This page remains here "for reference only".

We will, however, endeavour to maintain the availability of spares/consumables for existing users of this product where possible.

Our H301 Aspirated Psychrometer is an aspirated humidity sensor using the "Wet and Dry Bulb" method for reliable determination of air temperature and relative humidity. A pair of 100 Ohm 4-terminal platinum resistance elements (RTD/PRT) are used as the sensing elements.

A double-walled element enclosure minimizes errors due to thermal radiation and an optional radiation shield (/RS) is available to reduce errors due to sunlight.

A long-life motor/fan ensures a high air flow past the sensing elements for an accurate wet-bulb depression.

The instrument construction is weather resistant while retaining easy access to the sensing elements for calibration, cleaning and wick replacement. A 500ml water reservoir provides for over 7 days continuous operation.

Note: This sensor does not contain any signal conditioning or amplifiers to process the sensing element signals. Most data loggers can be configured to measure PRT/RTD sensors in a 3 or 4-wire bridge circuit, and can often also be set to control the fan/motor too.



 
Windspeed Limited (trading as Vector Instruments),
113 Marsh Road, RHYL, North Wales, LL18 2AB, United Kingdom
Tel: +44 (0) 1745 350700
Email: sales@windspeed.co.uk
 
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