Flow rates of gases – an important measurement in industrial processes.
- Chamber head (fast response time)
- Flow and temperature signal
- Probe length 120 … 1,000 mm (optional special length)
- Remote sensor (optional)
- Measuring ranges 0 … 10 m/s to 0 … 220 m/s, special measuring range
- Special gas adjustment for different gases (optional)
- Pulse output
- Profi-BUS DP-V0 and DeviceNet (optional)
- ATEX (optional):
- Gases, zone 2: II 3G Ex ec ic IIC T4 Gc
- Dust, zone 22: II 3D Ex ic tc IIIC T135°C Dc
- Grease free / O2 applications (optional)
- Pressure resistant up to 40 bar
- Temperature range -20 (-40) up to +120 °C
The detection of flow velocities in industrial processes is an important measure to save energy, secure quality assurance in the production process, recording or distribution of costs, and much more.
The SCHMIDT® Flow Sensor SS 20.600 is the rugged solution for demanding industrial applications. It can be used for different applications such as compressed air monitoring, gas monitoring for process burners, metering of gases and much more.
- Compressed air consumption measurement
- Inert gas flow measurement
- Flow rate control
- Compressor control
- Exhaust air monitoring
- Control of combustion air at block heating plants, burners and fuel cells
Accessories
Connection technology
| Description | Article-Number |
|---|---|
| Connecting cable with coupler socket, 8-pole, length 5 m, open cable end | 524 921 |
| Connection cable with coupler socket, 8-pole, length selectable (2 … 100 m; 1 m steps), cable end sleeves, free of halogen 1) | 524 942 |
| Coupler socket, 8-pole, with screw terminals for cable ø 6 … 8 mm | 524 929 |
| Adapter cable M12, 8 <=> 4 pole, length 8 cm | 550 885 |
| 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 |
|---|---|
| Compression fitting, stainless steel 1.4571, FKM, G½ | 535 092 |
| Compression fitting, stainless steel 1.4571, FKM, R½ | 539 190 |
| Welding sleeve, steel, G½ acc. to EN 10241, 5 pieces per pack | 524 916 |
| Welding sleeve, stainless steel 1.4571, G½, acc. to EN 10241, 2 pieces per pack | 524 882 |
| Assembly kit for pipe assembly, suitable for 10.010 / 10.015, including pipe clamps and collar for adjustment to pipe diameter | 531 394 |
| Probe ball value 1" inside thread, connection to flow sensor: ½" inside thread incl. plug and chain | 530 940 |
| Probe ball value 1 ¼" inside thread, connection to flow sensor: ½" inside thread incl. plug and chain | 530 941 |
| Probe ball value 1 ½" inside thread, connection to flow sensor: ½" inside thread incl. plug and chain | 530 942 |
| Probe ball value 2" inside thread, connection to flow sensor: ½" inside thread incl. plug and chain | 530 943 |
| Straight-run probe ball valve ¾" inside thread, with threaded adapter for ½" full-length screw connection | 532 355 |
| Welded socket, steel, outside thread ¾", 5 pieces per pack | 531 200 |
| Welded socket, stainless steel, outside thread ¾", 2 pieces per pack | 531 201 |
Measured value display
| Description | Article-Number |
|---|---|
| LED display MD 10.010 in wall housing to show volume flow and flow velocity, 85 … 250 V AC and sensor power supply | 527 320 |
| LED display MD 10.010, similar to 527 320 but with 24 V DC voltage supply | 528 240 |
| LED display MD 10.015, similar to 527 320 but with additional sum function and second measuring input | 527 330 |
| LED display MD 10.015, similar to 527 330 but with 24 V DC voltage supply | 528 250 |
1) Application of sensor in ATEX area only with original connection cable 524 921 or 524 942 and without communication modules
| Technical data | |
|---|---|
| Measuring quantity | Standard flow velocity wN based on standard conditions 1) Temperature of medium TM |
| Measured medium | Air or nitrogen Optional: Natural gas, biogas, CO2, special gases and gas mixtures |
| Measuring range wN | 0 … 10 / 20 / 60 / 90 / 140 / 220 m/s Optional: Customised measuring ranges in 0.1 m/s steps |
| Lower detection limit wN | 0.2 m/s |
| Measuring range TM | SS 20.600: -20 … +120 °C SS 20.600 Ex: -40 … +120 °C |
| Measuring accuracy | |
| Standard wN | ±(3 % of measured value + [0.4 % of fmr; min. 0.08 m/s]) 2) |
| High precision wN (optional for air, nitrogen, oxygen only) |
±(1 % of measured value + [0.4 % of fmr; min. 0.08 m/s]) 2) |
| Response time (t90) wN | 1 s (jump of wN from 0 to 5 m/s in air) |
| Temperature gradient wN | < 8 K/min (at wN = 5 m/s in air) |
| TM (wN > 2 m/s) | ±1 K (10 … 30 °C); ±2 K (remaining measuring range) |
| Operating temperature | |
| Sensor | Standard/oxygen: -20 … +120 °C ATEX: -40 … +120 °C |
| Electronics | -20 … +70 °C |
| Storage temperature | -20 … +85 °C |
| Material | |
| Enclosure | Aluminium, anodised |
| Sensor tube, compression fitting | Stainless steel 1.4571 |
| Sensor head | Platinum element (glass passivated); PPO/PA |
| Protective sleeve (ATEX option) | Aluminium, anodised |
| Sensor cable (of remote sensor) | Jacket (PUR, halogen free, UL) |
| General data | |
| Humidity | Measuring mode: Non-condensing (< 95 % RH) |
| Operating pressure (max.) | Standard: 16 bar; option: 40 bar; oxygen (O2 > 21 %): 20 bar |
| Display | 4 x Duo-LEDs (green/red/orange) |
| Supply voltage | 24 V DC ± 20 % |
| Current consumption | Typ. 80 mA (without pulse outputs); max. 250 mA (including signal currents of all outputs) |
| Analog outputs Type: Auto U / I) |
wN, TM 0 … 10 V / 4 … 20 mA (switching of signal characteristic depends on RL) -Voltage output (0 … 10 V): RL ≥ 550 Ω (short-circuit protected) - Current output (4 … 20 mA): RL ≤ 500 Ω - Change-over hysteresis: 50 Ω - CL ≤ 10 nF |
| Pulse outputs: Signalization | Standard: Frequency f ~ wN f = 0 … fmax fmax = 100 Hz (option: fmax = 10 … 99 Hz) Optional: Pulse quantity: 1 pulse/1 m3; 1 pulse/0.1 m3; 1 pulse/0.01 m3 (max. 100 pulses/s) |
| Pulse outputs: Technology | 1. Highside-driver (PNP, open collector) at protected supply voltage; not galvanically isolated) Short-circuit protected (analog): 100 mA High level: > supply voltage - 3 V Leckage current: IOFF < 10 µA 2. Semiconductor relay; output galvanically isolated Output voltage/current: Max. 30 V / 50 mA |
| Electrical connection | Plug-in connector M12 (A-coded), male, 8-pin (shielded), screwed ATEX approval only in combination with original cable! |
| Maximum cable length | Voltage interface / current interface / pulse outputs: 100 m Voltage mode: Use AGND and RL ≥ 10 k (mass offset) |
| Mounting position | Arbitrary (with vertical downdraft: lower detection limit = 2 m/s at 16 bar) |
| Mounting tolerance | ±3° relative to flow direction (unidirectional) |
| Minimum immersion depth | DN25 |
| Protection type | Sensor probe: IP67; enclosure: IP65; electrical connector: IP67 (with correctly attached cable) |
| Protection class | III (SELV or PELV) |
| ATEX category | Gas (zone 2): II 3G Ex ec ic IIC T4 Gc Dust (zone 22): II 3D Ex ic tc IIIC T135°C Dc |
| Probe length | Compact version: 120/250/400/600 mm; special lengths from 120 to 1,000 mm (step: 10 mm) Remote version: Probe 120/250/400/600 mm; Remote cable: 1 … 10 m (step: 1 m) |
| Weight | Approx. 500 g max. (without connection cable) |
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