Aspiration psychrometer MV-4-M - MARKOUT
Markdown: Aspiration psychrometer MV-4M Designed to determine relative humidity and air temperature in ground conditions indoors and outdoors. Certificate No. 15439. State register No. 10069-01. The operation of a psychrometer is based on the dependence of the temperature differences between a dry and a “wet” thermometer for the purpose of subsequent calculation of air humidity parameters using special psychrometric tables or graphs, and the air temperature - according to the readings of a dry thermometer. Technical characteristics: * Air temperature measurement range from -25 to +50 oC. * Wet bulb thermometer measurement range from -10 to +50 oC. * Measuring range of relative air humidity at temperatures from +5 to +40 degrees from 10 to 100%. * Accuracy depending on temperature from ±2 to +6%. * The spring unwinding time is at least 8 minutes. The air flow speed (aspiration) during fan operation must be at least 2.0 m/sec at the 4th minute. Overall dimensions Ø105 x 420 mm. * Weight no more than 1.2 kg. * The spring of the MV-4-2M winding mechanism is wound up with a special key. Manba: https://www.nv-lab.ru/catalog_info.php?ID=2952