厂家***现货通风干湿表 数字式温湿度计 湿度计

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HM-3A通风干湿表、电动通风干湿表简介，通风干湿表，HM-3A型电动通风干湿表，电动通风干湿表生产厂家，电动通风干湿表价格
通风干湿表、电动通风干湿表由两只相同的***温度表和一个通风器组成，结构简单，工艺性强。、，它主要适用于气象台站、工矿企业、实验室及研究单位等测量空气温度及相对湿度之用，是测量温度和湿度的二等测量标准。通风干湿表、电动通风干湿表.

一、电动通风干湿表参数：
1、名称：通风干湿表、电动通风干湿表
2、型号：HM-3A
3、温度测量范围：-25℃～+50℃ 或 -35℃～+45℃
4、小分度：0.2℃
5、湿度测量范围：10%RH～100%RH

6、通风速度：电动通风3m/s以上
7、工作电压： AC：220V/50或者DC：9V/1A直流电源
8、尺寸：φ90mm～418mm
9、重量：1.1kg
10、电动通风干湿表用途：电动通风干湿表用于气象台站、工矿企业、实验室及研究单位等测量空气温度及相对湿度之用，其他测量时作标准仪器。隆拓牌电动通风干湿表特点就是通风速度稳定，测定误差小，使用方便。
二、电动通风干湿表原理：
电动通风干湿表工作原理就是电机带动风扇转动后给予***速度的空气流，流经两支并排的温度表，其中一支的***球部缠以浸湿的脱脂纱布。由于纱布上水分的蒸发而使该温度表的温度下降，对比两支温度表（浸湿与未浸湿）的温度差，经查表换算可求出空气的相对湿度、湿度等。通风干湿表、电动通风干湿表

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