SCHMIDT Technology
  Description Article-Number
Basic sensor SCHMIDT® Flow Sensor SS 20.400, version as thermopile head
SCHMIDT® Flow Sensor SS 20.400, version as thermopile head, ATEX version (Kat. 3G, Zone2)
518 210 - X Y D Z R - P
  Options
Mechanical type Sensor length 130 mm (only with 0…10V output signal available)   1            
Sensor length 200 mm   2            
Sensor length 300 mm   3            
Measurement range Measurement range 0 … 1 m/s     1          
Measurement range 0 … 2,5 m/s     2          
Measurement range 0 … 5 m/s     3          
Measurement range 0 … 10 m/s     4          
Measurement range 0 … 20 m/s     5          
Measurement direction, adjustment accuracy and calibration
Unidirectional – standard adjustment       1        
Unidirectional – standard adjustment with certificate       6        
Bidirectional – standard adjustment       2        
Bidirectional – standard adjustment with certificate       7        
Unidirectional – high precision calibration incl. ISO calibration certificate       3        
Bidirectional – high precision calibration incl. ISO calibration certificate       4        
Unidirectional – vertical flow adjustment with high precision with ISO - calibration certificate (only for measuring range 1 m/s)       5        
Analog output 0 … 10 V         1
     
4 … 20 mA (not for sensor length 130 mm)         5
     
Representation of direction Bidirectional switching output OC 1           1    
Bidirectional: halved analog signal 0 m/s = 12 mA / 5 V           2
   
Unidirectional           3    
Sensor-programming Factory setting               S
Customer-specific programming of switching polarity, splitting signal and response time               K