The Psychro-Dyne is a completely portable instrument which indicates wet and dry bulb temperatures for relative humidity and dew point measurements.
(Note: MERCURY Is NO longer available! This Item has been replaced with the p/n 22014)
Greater than 1% accuracy for RH determination
Greater than 1/4% accuracy on thermometers
1000 readings on 3 «D» cells
Variable intensity, built-in illumination
Requires no whirling or special technique
Steady aspiration allows readings in 1-1/2 to 2 min.
Customized, high-density polyethylene carrying case, spare wick and lamp included
Meets federal spec. GG-P-725B, Type III, Style B, NIST Certification available
The Psychro-Dyne requires no whirling or special techniques and may operate in confined areas. The operator is only required to wet the wick on the wet bulb, turn the instrument on, and allow the constant aspiration rate to cause the depression in wet bulb temperature.
Directions for use: Turn on the fan and let it run for 1 1/2 to 2 minutes. Subtract wet bulb reading from dry bulb reading. Use the included slide rule and tables to calculate the RH. Fan is powered by three size D batteries (order separately).
This operation, when compared to the conventional sling psychrometers, affords a safer, convenient, and more accurate method of RH determination. Night-time and dark space readings are provided by increasing the intensity of the illuminating thermometer scale. The high thermometers' breakage rate of the sling psychrometers is also eliminated in the Psychro-Dyne since the thermometers are shock mounted.
Black custom molded carrying case
Instruction manual (contains part lists, humidity and dewpoint tables)
One 2 oz. plastic water bottle
Psychrometric slide rule
Spare parts kit: extra wicking material and an additional lamp
0 to 140°F for relative humidity and dewpoint determination
1-1/2 to 2 minutes
°F range: 0 to 120°F (matched within 1/2°) °C range: -15 to 45°C