SCHMIDT® Duplex-Laminar-Flow Sensor SS 20.415 Twin - Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology
SCHMIDT® Duplex-Laminar-Flow Sensor SS 20.415 Twin - Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology. Measuring quantity Standard flow velocity
Product Overview
The SCHMIDT® Duplex-Laminar-Flow Sensor SS 20.415 Twin is part of the SCHMIDT Flow Sensors for Laboratory, Pharmaceutical and Clean Room Technology line. Doubled validation of laminar flow(registered design) Thermal duplex flow sensor for redundant validation of laminar flow applications at one measuring point. Redundant validation of laminar flow applicationsTwo independent, full-fledged flow sensors in one unitEasy installation at one measuring pointNo mutual influence of measurementsConfined space becomes a minor matter'Plug and Play' combined with quick assemblyPrecise measurement of low flow velocity [... 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, additional gases on request技术参数 |
| 量程 / Measuring range wN | 0 ... 1 / 2.5 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 | 0.05 m/s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 | 5 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 |
| 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 srew | 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. 32 mA / max. 45 mA (including all signal output currents)通用参数 |
| 模拟输出 / Analog outputs wN,A & wN,B | 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: 10 m | Current interface: 100 m通用参数 |
| 安装位置 / Mounting position | Straight: ±3° relative to flow direction | Angled: Vertical downdraft flow (per design)通用参数 |
| 防护等级 / Protection type | Sensor: 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. 250 g (angled design with 270 mm x 300 mm)通用参数 |
Datasheets
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