廠家***現貨通風干濕表 數字式溫濕度計 濕度計

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HM-3A通風干濕表、電動通風干濕表簡介，通風干濕表，HM-3A型電動通風干濕表，電動通風干濕表生產廠家，電動通風干濕表價格
通風干濕表、電動通風干濕表由兩只相同的***溫度表和一個通風器組成，結構簡單，工藝性強。、，它主要適用于氣象臺站、工礦企業、實驗室及研究單位等測量空氣溫度及相對濕度之用，是測量溫度和濕度的二等測量標準。通風干濕表、電動通風干濕表.

一、電動通風干濕表參數：
1、名稱：通風干濕表、電動通風干濕表
2、型號：HM-3A
3、溫度測量范圍：-25℃～+50℃ 或 -35℃～+45℃
4、小分度：0.2℃
5、濕度測量范圍：10%RH～100%RH

6、通風速度：電動通風3m/s以上
7、工作電壓： AC：220V/50或者DC：9V/1A直流電源
8、尺寸：φ90mm～418mm
9、重量：1.1kg
10、電動通風干濕表用途：電動通風干濕表用于氣象臺站、工礦企業、實驗室及研究單位等測量空氣溫度及相對濕度之用，其他測量時作標準儀器。隆拓牌電動通風干濕表特點就是通風速度穩定，測定誤差小，使用方便。
二、電動通風干濕表原理：
電動通風干濕表工作原理就是電機帶動風扇轉動后給予***速度的空氣流，流經兩支并排的溫度表，其中一支的***球部纏以浸濕的脫脂紗布。由于紗布上水分的蒸發而使該溫度表的溫度下降，對比兩支溫度表（浸濕與未浸濕）的溫度差，經查表換算可求出空氣的相對濕度、濕度等。通風干濕表、電動通風干濕表

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