产品介绍：testo 521-1/2压力仪，适用于测量差压，如过滤器内压力下降、检测风扇或抽力设备。通过内置压力传感器，用皮托管测量5～100 m/s 风速。外接100 Pa探头可测量1～12 m/s风速量程。并直接计算风量及多点/计时均值计算。testo521-1压力仪探头类型 ( 测量值 )量程 压敏电阻传感器 ( 压力 )0.0 ... 100.0 hPa精度+/-0.2% of f.v. (0.0 ... 100.0 hPa)过载+/-300.0 hPa (0.0 ... 100.0 hPa)分辨率+/-0.0010 hPa (0.0 ... 100.0 hPa)压敏电阻传感器 ( 压力 )0.0 ... 2000.0 hPa精度+/-0.1% 测量值 (0.0 ... 2000.0 hPa)K 型 (NiCr-Ni) ( 温度 )-200.0 ... 1370.0 °C精度+/-1.0 °C (-200.0 ... -100.0 °C) +/-0.4 °C (-100.0 ... 200.0 °C) +/-1.0 °C (200.0 ... 1370.0 °C)分辨率+/-0.1 °C (-200.0 ... 1370.0 °C)电压测量 ( 电压 1)0.0 ... 10.0 V精度+/-0.1% of f.v. (0.0 ... 10.0 V)分辨率+/-0.01 V (0.0 ... 10.0 V)电流 / 电压测量 ( 电流 1)0.0 ... 20.0 mA精度+/-0.04 mA (0.0 ... 20.0 mA)分辨率+/-0.01 mA (0.0 ... 20.0 mA)testo521-2压力仪探头类型 ( 测量值 )量程 压敏电阻传感器 ( 压力 )0.0 ... 100.0 hPa精度+/-0.1% of f.v. (0.0 ... 100.0 hPa)过载+/-300.0 hPa (0.0 ... 100.0 hPa)分辨率+/-0.0010 hPa (0.0 ... 100.0 hPa)压敏电阻传感器 ( 压力 )0.0 ... 2000.0 hPa精度+/-0.1% 测量值 (0.0 ... 2000.0 hPa)K 型 (NiCr-Ni) ( 温度 )-200.0 ... 1370.0 °C精度+/-1.0 °C (-200.0 ... -100.0 °C) +/-0.4 °C (-100.0 ... 200.0 °C) +/-1.0 °C (200.0 ... 1370.0 °C)分辨率+/-0.1 °C (-200.0 ... 1370.0 °C)电压测量 ( 电压 1)0.0 ... 10.0 V精度+/-0.1% of f.v. (0.0 ... 10.0 V)分辨率+/-0.01 V (0.0 ... 10.0 V)电流 / 电压测量 ( 电流 1)0.0 ... 20.0 mA精度+/-0.04 mA (0.0 ... 20.0 mA)分辨率+/-0.01 mA (0.0 ... 20.0 mA)