Flow Sensor SS 20.261
SCHMIDT® Flow Sensor SS 20.261 - Flow Sensors and Accessories
SCHMIDT® Flow Sensor SS 20.261 - Flow Sensors and Accessories. Measuring quantity Standard flow velocity wN based on standard conditions 1) | Temperature of medium T
Product Overview
The SCHMIDT® Flow Sensor SS 20.261 is part of the SCHMIDT Flow Sensors and Accessories line. Chamber head (fast response time)Flow and temperature signalProbe length 200 ... 350 mmMeasuring ranges 0 ... 40 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) | Temperature of medium TM技术参数 |
|---|---|
| 被测介质 / Measured medium | Air or nitrogen, other gases upon request技术参数 |
| 量程 / Measuring range wN | 0 ... 40 / 60 / 90 m/s技术参数 |
| 最低检出限 / Lower detection limit wN | 0.2 m/s技术参数 |
| 介质温度量程 / Measuring range TM | -20 ... + 85 °C技术参数 |
| 测量精度（标准） / Standard wN | ±(5 % of measured value + 0.4 % of fmr) 2)测量精度 |
| 测量精度（高精度可选） / High precision (optional) wN | ±(3 % of measured value + 0.4 % of fmr) 2)测量精度 |
| 响应时间 / Response time (t90) wN | 3 s (jump from 0 to 5 m/s)测量精度 |
| 温度梯度 / Temperature gradient wN | <= 8 K/min (at wN = 5 m/s in air)测量精度 |
| TM (wN > 2 m/s) | ±1 K (0 ... 40 °C); ±2 K (in remaining measuring range)测量精度 |
| 传感器探头 / Sensor probe | -20 ... +85 °C工作温度 |
| Electronics | -20 ... +70 °C工作温度 |
| 外壳 / Enclosure | PBT (glass-fibre reinforced)材质 |
| 传感器管 / Sensor tube | Stainless steel 1.4571材质 |
| 传感器头部 / Sensor head | Platinum element (glass passivated); PPO/PA材质 |
| 卡套接头 / Compression fitting | Brass (G½) / stainless steel 1.4305 (R½) (order options)材质 |
| 传感器电缆 / Sensor cable | PVC材质 |
| 湿度 / Humidity | Measuring mode: Non-condensing (< 95 % RH)通用参数 |
| 工作压力 / Operating pressure (max.) | 10 bar (overpressure)通用参数 |
| 显示 / Display | LED green: Operating state | LED red (flashing): Sensor defective通用参数 |
| 供电电压 / Supply voltage | 24 V DC ± 10 %通用参数 |
| 电流消耗 / Current consumption | Typ. < 40 mA, max. 60 mA通用参数 |
| 模拟输出 / Analog outputs (wN and TM) | 4 ... 20 mA (RL <= 300 ohm, CL <= 10 nF), short circuit protected通用参数 |
| 电气连接 / Electrical connection | Non-detachable cable , 4 x 0,14 mm2, length 5 m, with ferrules通用参数 |
| 最大电缆长度 / Maximum cable length | 100 m (wire cross-section > 0,14 mm2 recommended)通用参数 |
| 安装位置 / Mounting position | Arbitrary (except in case of a downward | flow and < 2 m/s at the same time)通用参数 |
| 安装公差 / Mounting tolerance | ±3° relative to flow direction (unidirectional)通用参数 |
| 防护等级 / Protection type | Sensor probe: IP66; enclosure: IP54通用参数 |
| 防护等级 / Protection class | III (SELV or PELV)通用参数 |
| 探头长度 / Probe length L | 200/350 mm通用参数 |
| 重量 / Weight | 250 g (max.; L = 350 mm)通用参数 |
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