Thermal flow sensor for unidirectional or bidirectional measurement of flow velocity of air with simultaneous detection of flow direction.
- Thermopile head (very fast response time)
- Flow signal
- Short probe length of 60 mm and 110 mm
- Measuring ranges 0 … 1 m/s to 0 … 10 m/s
- Bidirectional measurement (detection of flow direction, optional)
- Extremely compact (electronics are integrated into tube)
- Sensor element protected against mechanical stress
- Linear analog output for measured flow velocity
- Plant and mechanical engineering
- Semiconductor and electronics manufacturing
- Cleanroom and pharmaceutical
- Ultra-compact design
- Sensor tube and sensor head out of stainless steel
Accessories
Connection technology
| Description | Article-Number |
|---|---|
| Power supply unit: output 24 V / 1A DC, supply voltage 115/230 V AC (strip terminal) | 535 282 |
Mounting and fixing technology
| Description | Article-Number |
|---|---|
| Wall mounting flange, stainless steel, clamping ring PTFE | 520 181 |
| Wall mounting bracket, aluminium anodized | 503 895 |
| Mounting flange, stainless steel 1.4404 | 551 740 |
| Compresson fitting, stainless steel, G½, atmospheric pressure | 532 160 |
| Welding sleeve, stainless steel 1.4571, G½, according to EN 10241, 2 pieces | 524 882 |
| Assembly kit for pipe assembly suitable for MD 10.010/10.015 including pipe clamps and collar for adjustment to pipe diameter | 531 394 |
Measured value display
| Description | Article-Number |
|---|---|
| SCHMIDT® LED display MD 10.010; in the wall housing to visualize the volumetric flow and the flow velocity (or other measures), 85…250 V AC and sensor supply | 527 320 |
| SCHMIDT® LED display MD 10.010; as with 527 320 but with 24 V DC voltage supply | 528 240 |
| SCHMIDT® LED display MD 10.015; in the wall housing to visualize the volumetric flow and the flow velocity (or other measures), with additional sum function and second measuring input, 85 … 250 V AC and sensor supply | 527 330 |
| SCHMIDT® LED display MD 10.015; as with 527 330 but with 24 V DC voltage supply | 528 250 |
| Technical data | |
|---|---|
| Measuring quantity | Standard flow velocity wN, based on standard conditions 1) |
| Measured medium | Clean air or nitrogen |
| Measuring range wN | (±)0 … 1 / 2.5 / 5 / 10 m/s |
| Lower detection limit wN | (±)0.05 m/s |
| Measuring accuracy | |
| Standard wN | ±(5 % of measured value + [1 % of fmr; min. 0.05 m/s]) 2) |
| High precision (optional) wN | ±(3 % of measured value + [1 % of fmr; min. 0.05 m/s]) 2) |
| Response time (t90) wN | 0.2 s |
| Operating temperature | |
| Sensor | 0 … +60 °C |
| Storage temperature | -20 … +85 °C |
| General data | |
| Humidity | Measuring mode: Non-condensing (< 95 % RH) |
| Operating pressure (max.) | Atmospheric (700 … 1,300 hPa) |
| Supply voltage | 12 … 26.4 V DC |
| Current consumption | Typ. < 6 mA (max. 10 mA) |
| Analog output | 0 … 10 V (RL ≥ 10 kΩ; CL ≤ 1 nF; short-circuit protected) |
| Electrical connection | Non-detachable cable, 3 wires, length 5 m, with ferrules |
| Maximum cable length | 15 m |
| Mounting position | ±3° relative to flow direction |
| Protection type | III (SELV or PELV) |
| Protection class | IP65 |
| Probe length | 60/110 mm (order option) |
| Weight | Approx. 40 g (sensor llength of 110 mm) |
| Material | |
| Sensor head | Ø 9 mm x 10 mm stainless steel 1.4404 |
| Sensor tube | Ø 9 mm stainless steel 1.4404 |
| Cable sheath | PVC |
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