SCHMIDT® Laminar-Flow Sensor SS 20.715 LED - Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology
SCHMIDT® Laminar-Flow Sensor SS 20.715 LED - Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology. Measuring quantity Standard flow velocity wN base
Product Overview
The SCHMIDT® Laminar-Flow Sensor SS 20.715 LED is part of the SCHMIDT Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology line. Robust validation of laminar flow Thermal flow sensor for validation of laminar flow applications. Robust validation of laminar flow applications Sensor elements completely encapsulated in stainless steel Easy to clean nd resistant against H2O2 GMP-compliant, robust design'Plug and Play' combined with quick assemblyPrecise measurement of low flow velocity [wN]Straight and angled design for wall and ceiling mountingProbe length straight version: 300 mmProbe... 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 | Clean a or nitrogen, additional gases on request技术参数 |
| 量程 / Measuring range wN | 0 ... 1 / 2.5 / 10 m/s技术参数 |
| 显示 / Max. display range wN | +10 % above measuring range技术参数 |
| 最低检出限 / Lower detection limit wN | 0.1 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 | 15 s测量精度 |
| Temperatur TM (wN > 0.3 m/s) | ±1 K (10 ... 30 °C); ±2 K (remaining measuring range)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 |
| 传感器头部 / Sensor head | Stainless steel 1.4404材质 |
| 传感器管 / Sensor tube | Stainless steel 1.4404材质 |
| Plug connector, nut screw | 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 | tbd通用参数 |
| 模拟输出 / Analog outputs wN & TM | 0 ... 10 V (RL >= 10 kohm; short-circuit protected) | 4 ... 20 mA (RL <= 300 ohm>br> CL <= 10 nF通用参数 |
| 故障信号 / Error signal | Only with current interface: 2 mA (according to NAMUR NE43)通用参数 |
| 电气连接 / Electrical connection | Plug-in-connector M9, male, 7-pin (shielded), screwed通用参数 |
| 最大电缆长度 / Maximum cable length | Voltage interface / current interface: 100 m | Voltage mode: Use AGND and RL >= 10 k (mass offset)通用参数 |
| 安装位置 / Mounting position | Straight: ±3° relative to flow direction (unidirectional) | Angled: Vertical downdraft flow (per design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 |
| Sensor length | Angled: 150/270 mm (vertical) x 300 mm (horizontal) | Straight: 300 mm通用参数 |
| 重量 / Weight | Approx. 280 g (angled design with 270 mm x 300 mm)通用参数 |
| Digital interface | Modbus (RTU); RS485 (EIA-485), 2-wire, 3.3 V通用参数 |
Datasheets
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