SCHMIDT® Flow Sensor SS 20.515 LED - Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology
SCHMIDT® Flow Sensor SS 20.515 LED - Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology. Measuring quantity Standard flow velocity wN based on sta
Product Overview
The SCHMIDT® Flow Sensor SS 20.515 LED is part of the SCHMIDT Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology line. Thermal flow sensor with integrated electronics for measuring flow velocity of air, especially designed for monitoring laminar flow of air in cleanroom facilities. Aerodynamically shaped dumbbell head with optimal flow properties, largely independent of directionCleanroom compatible design in accordance with GMP standard to prevent surface contaminationOperating status indication and serial number visible, even when sensor is installedFlow and temperature... 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 sup>1) | Temperature of medium TM技术参数 |
|---|---|
| 被测介质 / Measured medium | Air or nitrogen, other gases on request技术参数 |
| 量程 / Measuring range wN | 0 ... 1 / 2.5 / 10 m/s技术参数 |
| 最低检出限 / Lower detection limit wN | 0.06 m/s技术参数 |
| 介质温度量程 / Measuring range TM | -20 ... +70 °C技术参数 |
| 测量精度（标准） / Standard wN | ±(3 % of measured value + 0.05 m/s) 2)测量精度 |
| 测量精度（高精度可选） / High precision (optional) wN | ±(1 % of measured value + 0.04 m/s) 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 | < 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 | -20 ... +70 °C工作温度 |
| 存储温度 / Storage temperature | -20 ... +85 °C工作温度 |
| 传感器头部 / Sensor head | PBT (glass-fibre reinforced), stainless steel 1.4571, protective coating (optional)材质 |
| 传感器管 / Sensor tube | Stainless steel 1.4404材质 |
| Connector plug | Stainless steel 1.4404材质 |
| 光环 / Light ring | PC材质 |
| 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 | 24 V DC ± 10 %通用参数 |
| 电流消耗 / Current consumption | Typ. < 60 mA / max. 100 mA (signal currents included)通用参数 |
| 模拟输出 / Analog outputs (wN and TM) | 0 ... 10 V (RL > 10 kohm; CL <= 10 nF; short-circuit protected) | 4 ... 20 mA (RL < 300 ohm; CL <= 100 nF)通用参数 |
| 故障信号 / Error signal | Only current interface: 2 mA (according NAMUR NE43)通用参数 |
| Electical connection | Connector M9, male, 7-pin (shielded), screwed通用参数 |
| 最大电缆长度 / Maximum cable length | Voltage interface: 10 m; current interface: 100 m通用参数 |
| 安装位置 / Mounting position | Arbitrary (preferred in vertical down flow direction)通用参数 |
| 防护等级 / Protection type | IP65; electrical connector: IP67 (with correctly attached cable)通用参数 |
| 防护等级 / Protection class | III (SELV or PELV)通用参数 |
| 探头长度 / Probe length | Angled: 150/270 mm (vertical) x 300 mm (horizontal) | Straight: Standard 300 mm; special length >300 ... 1,000 mm (step: 10 mm)通用参数 |
| 重量 / Weight | 300 g max. (straight, 1000 mm, type 3)通用参数 |
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