SCHMIDT® Flow Sensor SS 20.261
| Technical Data | |
|---|---|
| Measurement value | Standard velocity WN based on standard conditions of TN = 20 °C and pN = 1,013.25 hPa Temperature of the medium TM |
| Medium to be measured | Air or nitrogen, other gases upon request |
| Measuring range of flow wN | 0 … 40 / 60 / 90 m/s |
| Smallest measurable flow velocity wN | 0,2 m/s |
| Measuring accuracy | |
| Standard wN | ± 5 % of measured value + 0.4 % of measuring range |
| High precision calibration wN | ± 3 % of measured value + 0.4 % of measuring range |
| Reproducibility wN | ± 1.5 % of measured value |
| Response time (t90) wN | 3 s (jump from 0 to 5 m/s) |
| Temperature gradient | 8 K/min at 5 m/s |
| Temperature measuring range TM | -20 … + 85 °C |
| Temperature measuring accuracy TM | ± 1 K at wN > 2 m/s |
| Operating temperature | |
| Sensor | - 20 … + 85 °C |
| Electronics | 0 … 70 °C |
| Material | |
| Housing | PBT, glass fiber reinforced |
| Sensor tube | Stainless steel 1.4571 |
| Sensor element | Ceramics, passivated glass |
| Compression fitting | Brass (G½) / stainless steel 1.4305 (R½) |
| Connecting cable | PVC |
| General data | |
| Operating pressure | 0 … 10 bar |
| Gas state | Non-condensing (up to 95% relative humidity) |
| Output signals | 2 x 4 … 20 mA (RL ≤ 300 Ω, CL ≤ 10 nF) |
| Maximum cable length | 100 m |
| Display | LED green: Operating state LED red: Sensor defective |
| Supply voltage | 24 V DC ± 10 %, 60 mA |
| Stabilization time | Approx. 10 s after switch-on |
| Connection | Permanently connected cable, 4 cores, length 5 m, with cable end sleeves |
| Probe length | 200 / 350 mm |
| Installation position | Any (except in case of a downward flow and < 2 m/s at the same time) |
| Mounting tolerance | ± 3° to flow direction |
| Type of protection | IP 66 / III or PELV |
Subject to technical changes.
