Flow Sensor SS 20.225
SCHMIDT® Flow Sensor SS 20.225 流量传感器
SCHMIDT® Flow Sensor SS 20.225 流量传感器，介质温度量程 -20 ... +70 °C；供电电压 24 V DC ± 10 %；模拟输出 0 ... 10 V (RL >= 10 kohm, short cir
产品概述
SCHMIDT® Flow Sensor SS 20.225 属于 SCHMIDT 流量传感器与附件（Flow Sensors and Accessories）产品线，介质温度量程 -20 ... +70 °C；供电电压 24 V DC ± 10 %；模拟输出 0 ... 10 V (RL >= 10 kohm, short circuit protected; CL <= 10 nF)；测量精度（标准） ±(5 % of measured value + [0.4 % of fmr; min 0.02 m/s]) 2)。我司经销 SCHMIDT Technology 原装全新正品，可提供选型支持、技术资料与稳定供货。
技术参数
| 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 |
| Measuring range flow wN | 0 ... 1 / 2.5 / 10 / 20 m/s技术参数 |
| 最低检出限 / Lower detection limit flow wN | 0.06 m/s技术参数 |
| 介质温度量程 / Measuring range temperature TM | -20 ... +70 °C技术参数 |
| 测量精度（标准） / Standard wN | ±(5 % of measured value + [0.4 % of fmr; min 0.02 m/s]) 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; min 0.02 m/s]) 2)测量精度 |
| 响应时间 / Response time (t90) wN | 3 s (jump from 0 to 5 m/s in air)测量精度 |
| 温度梯度 / Temperature gradient wN | < 2 K/min (at wN = 5 m/s in air)测量精度 |
| TM (wN > 1 m/s) | ±1 K (10 ... 30 °C); ±2 K (remaining measuring range)测量精度 |
| Sensor and electronics | -20 ... +70 °C工作温度 |
| 存储温度 / Storage temperature | -30 ... +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 | Atmospheric (700 ... 1,300 hPa)通用参数 |
| 显示 / Display | LED green: Operating status | 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. < 60 mA (max. 100 mA)通用参数 |
| 模拟输出 / Analog outputs for wN and TM | 0 ... 10 V (RL >= 10 kohm, short circuit protected; CL <= 10 nF)通用参数 |
| 电气连接 / Electrical connection | Standard: Non-detachable cable, 4 wires, length 2 m | Special cable length (option): 3 ... 15 m (steps of 1 m)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 | Arbitrary通用参数 |
| 最小插入深度 / Minimum immersion depth | 58 mm (< 58 mm upon request)通用参数 |
| 防护等级 / Protection type | Sensor head: IP67; enclosure: IP65通用参数 |
| 防护等级 / Protection class | III (SELV or PELV)通用参数 |
| 探头长度 / Probe length | 100/200/350/500 mm通用参数 |
| 重量 / Weight | Approx. 100 g (L = 350 mm)通用参数 |
| 传感器管 / Sensor tube | Stainless steel 1.4571材质 |
| 传感器头部 / Sensor head | PBT (glass-fiber-reinforced), stainless steel 1.4571材质 |
| 防护涂层 / Protective coating (optional) | Polyurethan (PU)材质 |
| 传感器电缆 / Sensor cable | PVC材质 |
| 外壳 / Housing | PBT (glass-fiber-reinforced)材质 |
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