SCHMIDT® Flow Sensor SS 20.420 - Flow Sensors and Accessories
SCHMIDT® Flow Sensor SS 20.420 - Flow Sensors and Accessories. Measuring quantity Standard flow velocity wN, based on standard conditions 1), Measured medium Clean a
Product Overview
The SCHMIDT® Flow Sensor SS 20.420 is part of the SCHMIDT Flow Sensors and Accessories line. Thermal flow sensor for unidirectional or bidirectional measurement of flow velocity of air with simultaneous detection of flow direction. Thermopile head (very fast response time)Flow signalShort probe length of 60 mm and 110 mmMeasuring ranges 0 ... 1 m/s to 0 ... We supply genuine, brand-new SCHMIDT Technology products with selection support, technical documentation and stable supply.
Specifications
| 测量量 / Measuring quantity | Standard flow velocity wN, based on standard conditions 1)技术参数 |
|---|---|
| 被测介质 / Measured medium | Clean air or nitrogen技术参数 |
| 量程 / Measuring range wN | (±)0 ... 1 / 2.5 / 5 / 10 m/s技术参数 |
| 最低检出限 / Lower detection limit wN | (±)0.05 m/s技术参数 |
| 测量精度（标准） / Standard wN | ±(5 % of measured value + [1 % of fmr; min. 0.05 m/s]) 2)测量精度 |
| 测量精度（高精度可选） / High precision (optional) wN | ±(3 % of measured value + [1 % of fmr; min. 0.05 m/s]) 2)测量精度 |
| 响应时间 / Response time (t90) wN | 0.2 s测量精度 |
| Sensor | 0 ... +60 °C工作温度 |
| 存储温度 / Storage temperature | -20 ... +85 °C工作温度 |
| 湿度 / Humidity | Measuring mode: Non-condensing (< 95 % RH)通用参数 |
| 工作压力 / Operating pressure (max.) | Atmospheric (700 ... 1,300 hPa)通用参数 |
| 供电电压 / Supply voltage | 12 ... 26.4 V DC通用参数 |
| 电流消耗 / Current consumption | Typ. < 6 mA (max. 10 mA)通用参数 |
| Analog output | 0 ... 10 V (RL >= 10 kohm; CL <= 1 nF; short-circuit protected)通用参数 |
| 电气连接 / Electrical connection | Non-detachable cable, 3 wires, length 5 m, with ferrules通用参数 |
| 最大电缆长度 / Maximum cable length | 15 m通用参数 |
| 安装位置 / Mounting position | ±3° relative to flow direction通用参数 |
| 防护等级 / Protection type | III (SELV or PELV)通用参数 |
| 防护等级 / Protection class | IP65通用参数 |
| 探头长度 / Probe length | 60/110 mm (order option)通用参数 |
| 重量 / Weight | Approx. 40 g (sensor llength of 110 mm)通用参数 |
| 传感器头部 / Sensor head | Ø 9 mm x 10 mm stainless steel 1.4404材质 |
| 传感器管 / Sensor tube | Ø 9 mm stainless steel 1.4404材质 |
| Cable sheath | PVC材质 |
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