QDF-3热球式电风速计，QDF-3指针热线式风速仪该系列产品为经济型，其价格低，适合少投资、不经常使用，但又必须装备的企事业单位。热球式电风速 计是以测量风速为基本功能的便携式低风速测量仪表，尤其适用测量微风，在测量管道风速及采暖、空调制冷、环境保护、节能监测、气象、农业、冷藏、干燥、卫 生防疫、疾病控制、劳动卫生调查、洁净车间、化纤纺织，各种风速实验等方面有广泛用途。QDF Series Hot-bulb Wind Velocity InstrumentIts main feature is low price especially for those enterprises who must equip such device but with less investment and no often use.It is a portable and intelligent instrument mainly for low wind velocity, combined with the function for the measurement of wind temperature and relative humidity. It is widely used in pipeline environment, heating, refrigeration, environment protection, energy monitor, weather, textile industry and kinds of wind velocity experiment, etc.

QDF-3指针热线式风速主要技术参数(Technical Parameter)风??? 速(wind velocity)：0.05-30 ms，误差(error)：≤5%U 附加误差(measure error)：当电源电压由额定值降到额定值的80%时，（QDF–3型为90%），其附加测量误差不大于±3%。测头方向偏差在±15℃时，其附加指示误差不大于±5%。响应时间(response time)：1-3s电源电压(supply voltage)：1#电池4节，6V。外型尺寸(dimension)：270×240×110mm重??? 量(weight)：2.5kg传感器长度(length of sensor)：引线3米，测杆0.62米，测杆直径φ11毫米。lead wire 3m, handle length 0.62m, handle diameter φ11mm.工作环境(operating environment)：温??? 度(temperature)：0-40oC相对湿度(relative humidity)：＜85%RH