info@schmidttechnology.de+49 (0) 77 24 / 8 99 -0
0 products watch list
X
  • No products in the list
Home/Sensors/Cleanroom, pharmaceutical, laboratory/SCHMIDT® Flow Sensor SS 20.515 LED

SCHMIDT® Flow Sensor SS 20.515 LED

Thermal flow sensor with integrated electronics for measuring flow velocity of air, especially designed for monitoring laminar flow of air in cleanroom facilities.

 

  • Aerodynamically shaped dumbbell head with optimal flow properties, largely independent of direction
  • Cleanroom compatible design in accordance with GMP standard to prevent surface contamination
  • Operating status indication and serial number visible, even when sensor is installed
  • Flow and temperature signal
  • Probe length 300 … 1,000 mm (optional special length)
  • Probe length angled version: 150 / 270 mm x 300 mm
  • Measuring ranges 0 … 1 / 2.5 / 10 m/s
  • Vertical adjustment (for laminar flow applications, optional)
  • Coating (optional; sensor head only)
  • Cleanroom sensor

 

New: Now also in short design: 150 mm x 300 mm (angled)

 

Option: Monitoring of admissible speed interval (prescribed by official standards) of 0.45 m/s ± 20 % with optical signaling at the sensor (LF status indicator)

 

  • Laminar flow monitoring in cleanrooms
  • Process control in pharmaceutical, semiconductor technology and food industry
  • Use in isolators, flow boxes and sterile filling machines

 

SCHMIDT Technology – Simply a question of better measurement

add to watch list

Specifications

Technical data
Measuring quantityStandard flow velocity wN based on standard conditions sup>1)
Temperature of medium TM
Measured mediumAir or nitrogen, other gases on request
Measuring range wN0 … 1 / 2.5 / 10 m/s
Lower detection limit wN0.06 m/s
Measuring range TM-20 … +70 °C
Measuring accuracy
Standard wN±(3 % of measured value + 0.05 m/s) 2)
High precision (optional) wN±(1 % of measured value + 0.04 m/s) 2)
Response time (t90) wN3 s (jump from 0 to 5 m/s)
Temperature gradient wN< 2 K/min (at wN = 5 m/s in air)
TM (wN > 1 m/s)±1 K (10 … 30 °C); ±2 K (remaining measuring range)
Operating temperature
Sensor-20 … +70 °C
Storage temperature-20 … +85 °C
Material
Sensor headPBT (glass-fibre reinforced), stainless steel 1.4571, protective coating (optional)
Sensor tubeStainless steel 1.4404
Connector plugStainless steel 1.4404
Light ringPC
General data
HumidityMeasuring mode: Non-condensing (< 95 % RH)
Operating pressure (max.)Atmospheric (700 … 1,300 hPa)
Supply voltage24 V DC ± 10 %
Current consumptionTyp. < 60 mA / max. 100 mA (signal currents included)
Analog outputs (wN and TM)0 … 10 V (RL > 10 kΩ; CL ≤ 10 nF; short-circuit protected)
4 … 20 mA (RL < 300 Ω; CL ≤ 100 nF)
Error signalOnly current interface: 2 mA (according NAMUR NE43)
Electical connectionConnector M9, male, 7-pin (shielded), screwed
Maximum cable lengthVoltage interface: 10 m; current interface: 100 m
Mounting positionArbitrary (preferred in vertical down flow direction)
Protection typeIP65; electrical connector: IP67 (with correctly attached cable)
Protection classIII (SELV) or PELV (EN 50178)
Probe lengthAngled: 150/270 mm (vertical) x 300 mm (horizontal)
Straight: Standard 300 mm; special length >300 … 1,000 mm (step: 10 mm)
Weight300 g max. (straight, 1000 mm, type 3)

1) Standard conditions: TN = 20 °C and pN = 1,013.25 hPa

2) Related to adjustment reference; "fmr" = final measuring range

Subject to technical change.

Order information

 DescriptionArticle-Number
Basic sensorSCHMIDT® Flow Sensor SS 20.515551 550 -ABCD11GH1
 Options
Mechanical typeSensor length 150 mm x 300 mm 3        
Sensor length 270 mm x 300 mm 1        
Sensor length 300 mm (straight) 2        
Special length (only straight): 310 … 1,000 mm; 10 mm steps 9        
Protection designWithout protective coating  1       
With protective coating (PU black; sensor head only)  2       
Mechanical fixationThreaded bushing M25 with lock nut   1      
Threaded bushing M25 with thread adapter M25 x 1,5 on PG21   2      
Threaded bushing M25 with shaft nut   3      
Welding bush   4      
Flange bush   5      
Without fixing material   6      
Measuring rangesMeasuring range 0 … 1 m/s    1     
Measuring range 0 … 1 m/s, unidirectional, with option LED indication of threshold monitoring (0.45 m/s ± 20 %)    4     
Measuring range 0 … 2.5 m/s    2     
Measuring range 0 … 10 m/s    3     
Measuring directionUnidirectional     1    
Direction representationUnidirectional      1   
Output signals0 … 10 V       1  
4 … 20 mA       2  
Adjustment accuracy and calibrationStandard adjustment        1 
Standard adjustment unidirectional with factory calibration certificate        4 
High precision adjustment with factory calibration certificate        2 
Sensor programmingFactory setting         1

Accessories

Connection technology

DescriptionArticle-Number
Coupler socket, 7-pins, with soldering terminals for cable-Ø 0.14 mm2535 278
Connecting cable with coupler socket, 7-pin, 5 m length, open cable ends, material PUR535 279
Connection cable with coupler socket, 7-pin, length selectable (2 … 100 m; 1 m steps), open cable ends505 911 - 4
Connecting cable with angled socket, 7-pin, 10 m length, open cable ends, material PUR535 281
Power supply unit: output 24 V / 1A DC, supply voltage 115/230 V AC (strip terminal)535 282

Mounting and fixing technology

DescriptionArticle-Number
Assembly kit for pipe assembly suitable for 10.010 / 10.015, including pipe clamps and collar for adjustment to pipe diameter531 394

Measured value display

DescriptionArticle-Number
LED display MD 10.010 in wall housing to show volume flow and flow velocity, 85 … 230 V AC and sensor power supply527 320
LED display MD 10.010, similar to 527 320 but with 24 V DC voltage supply528 240
LED display MD 10.015, similar to 527 320 but with an additional sum function and a second measuring input527 330
LED display MD 10.015, similar to 527 330 but with 24 V DC voltage supply528 250

Miscellaneous

DescriptionArticle-Number
Calibrator MK 40.450 - Set (8 / 12 / 16 mA)546 741-4
Attachable protective clip for dumbbell head against mechanical influence, (stainless steel)531 026
Attachable protective 2-wires-clip for protection against mechanical influences, stainless steel, H2O2-resistant559 124

Downloads

Related products

SCHMIDT® Flow Sensor SS 23.700 Ex Biogas

SCHMIDT® Mass Flow Sensor IL 30.005, IL 30.010 MPM, IL 30.015 MPM, IL 30.020 MPM

SCHMIDT® Flow Sensor SS 20.600 (Biogas)

SCHMIDT® Flow Switch SS 20.200

Duplex Flow Sensor SS 20.415 TwinDuplex Flow Sensor SS 20.415 Twin

SCHMIDT® Duplex-Laminar-Flow Sensor SS 20.415 Twin

SCHMIDT® PC Programming Kit

Back to Top