Instructions for using the sling psychrometer AOS 330 Prof. Petty Sling psychrometers are the standard for accurately measuring ambient temperature and humidity. Every meteorologist should know how to use one correctly. 1. Inspect the cotton wick on the sling psychrometer and make sure that it is in good condition and rmly in contact with the ...
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Sling Psychrometer for determining atmospheric humidity. Range 20°F to 120°F. 9" tubes. Folding swivel handle. Special molded case. Permacolor™ filled. Model 97S411J: 12 replacement wicks for model 1328PJ.
By plotting dew point and temperature as a function of time you can often predict when fog will form. Accurate sling psychrometers like these can also be used to calibrate hygrometers that read the relative humidity directly on a dial. Here is a quick test of 4 units showing the dependability of the thermometers.
Note: State regulations regarding mercury prohibit Lesman from shipping these products to the following states: Maine, Vermont, Rhode Island, Connecticut, New Hampshire, and Washington. Key Specifications. Mercury Fill; Folding Swivel Handle and Self-Contained Sling Pocket Case; Built-In Slide Rule, White Markings on High-Impact Black Plastic Case
The Sling Psychrometer is an easy and affordable way to measure relative humidity levels quickly and accurately. It is ideal for many applications, including the measurement of conditions within indoor environments, storage areas, laboratories and more.
A Description and photo of my Taylor pocket sling psychrometer. This Taylor 1323 sling psychrometer was listed in the 1919 Tycos industrial instrument catalog (with the Tycos logo, of course) and continued to be sold in the 1961 Taylor catalog, both of which are available on this website.
A quick in office demonstration on how to use a sling psychrometer to measure relative humidity. I teach the use of a sling psychrometer in my greenhouse management class and how relative humidity ...
5230/5231 Assmann Psychrometer User's Manual Page 3 To compute relative humidity, align the wet bulb temperature and the dry bulb temperature on a psychrometric slide rule and read the humidity directly. The psychrometric tables are also used for determining humidity when wet and dry bulb temperatures are known.