Specifications SS 20.415 LED
| Technical Data | |
|---|---|
| Measurement size wN | Normal velocity wN referred to standard conditions of TN = 20 °C and pN = 1,013.25 hPa |
| Measurement medium | Clean air, nitrogen, additional gases on request |
| Measurement ranges flow wN | 0 … 1 / 2.5 / 10 m/s |
| Max. display range wN | + 10 % above measurement range |
| Lower detection threshold wN | 0.05 m/s |
| Measurement precision | |
| Default wN | ± (3 % of the measured value+ 0.05 m/s) 1) |
| High precision (optional) wN | ± (1 % of the measured value + 0.04 m/s) 1) |
| Repeatability wN | ± 1.5 of the measured value |
| Response time (t90) wN | 0.01 … 10 s (configurable), 1 s factory sett. |
| Temperature gradient wN | <2 K/min at 5 m/s |
| Operational temperature | |
| Operating temperature | 0 … + 60 °C |
| Storage temperature | - 20 … + 85 °C |
| Material | |
| Sensor head | Aluminium, anodized |
| Sensor tube | Stainless steel 1.4571 |
| Plug connector | Stainless steel 1.4571 |
| General data | |
| Medium, environment | Non condensating (up to 95 % rh) |
| Operating pressure | Atmospheric (700 … 1,300 hPa) |
| Supply voltage | Typ. 24V dc (12 … 26.4 V DC) |
| Power consumption | Typ. 30 mA / max. 160 mA |
| Analog output | 0 … 10 V (RL ≥ 10 kΩ) or 4 … 20 mA (RL ≤ 300 Ω protected against short-circuit |
| Switching outputs | 2 open collectors, current-limited and protected against short circuits (<26.4 V DC / 65 mA) Channel 1 (OC1): direction or threshold value Channel 2 (OC2): threshold value Switching hysteresis 5 % of the threshold value, min ± 0.05 m/s |
| Error signal | Only with 4…20 mA output: 2mA (according to NAMUR NE43) |
| Connection | Connector M9, screwed, 7-pin, male |
| Maximum line length | Tension signal: 15 m, Power signal: 100 m |
| Mounting position | In the vertical flow direction |
| Protection type/ Protection class |
IP 65 / III or PELV |
| Sensor length | 270 x 300 mm (angular), 300 mm or customer-specific until 1000 mm (straight) |
| Weight | Approx. 200 g (angular version) |
1) under reference conditions
Subject to technical changes.
