压力仪Testo 521压力仪Testo 521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。2个额外探头插孔，用于连接压力、温度或电压/电流探头以0.04秒为测量周期测量动态压力通过皮托管计算风量2个精度等级:满量程的0.2 %和0.1 %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)