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Bacharach Sling Psychrometer New In Box Sling Psychrometer Relative Humidity Indicator Accurately indicates percent relative humidity without charts or formulas. The compact Bacharach Sling Psychrometer uses the accurate wet bulb-dry bulb thermometer principle to provide a simple, rapid measurement of relative humidity without tables, charts, or formulas. Portable and non-electronic, the sling psychrometer consists of two thin bulb thermometers and a refillable water reservoir in a high-strength plastic case. There is no need to wet the wick each time a reading is made. The case is simply whirled freely in the hand; wet and dry bulb temperature readings are taken; and percent relative humidity is determined from the built-in slide rule on the handle. When not in use, the thermometer case telescopes into the handle for protection. Thermometers in sling psychrometers are filled with non-toxic red spirit (alcohol) and are calibrated in °F. * Easy to use and designed for portability. * Slide rule construction quickly converts temperature to relative humidity. * Built-in reservoir holds sufficient water for several hours of testing. * Thin thermometer bulb gives fast thermal response. * Thermometers constructed of shock-resistant glass. * Stems have deep-etched numerals and 1° scale divisions for easy reading. * Inexpensive, reliable and accurate. The Sling Psychrometer can be easily operated by following these steps: * Be sure the wick on the wet bulb is clean and saturated with water while the bulb on the other thermometer is dry. * Whirl the Psychrometer body at a rate of two or three revolutions per second (120 to 180 RPM) for a minimum of 1½ minutes to allow the thermometer indications to stabilize. * Immediately read the wet bulb temperature first and then the dry bulb temperature. * For dry bulb temperatures above 70°F (21°C), use the high range scale on the sleeve-handle. If the dry bulb temperature is below 70° (+21°C), use the low range scale. * Set the wet and dry bulb temperatures opposite each other on slide rule and read %RH on the lower scale. Sling Psychrometers have many applications in commercial and industrial applications. Some of these are: * Air conditioned environments Pick up is available for all of our items – Please contact us for more information. (this posting is the responsibility of the poster) |
C.fuentes@dfwind.com (Cecil Fuentes) for more information. All emails will be forwarded to the poster's actual email address.
