SCHMIDT Technology
  Description Article-Number
Basic sensor SCHMIDT® Flow Sensor SS 20.415 version as thermopile head 551 490 - A 1 C D E F G H I
  Options
Mechanical type Sensor length 270 x 300 mm   1                
Sensor length 300 mm (straight)   2                
special length (only straight:) ___________ mm
(>300 … 1,000 mm; 10-mm-steps)
  9                
Protection Without protective coating     1              
Mechanical fixing Threaded bush M25 with counternut       1            
Threaded bush M25 with thread adapter M25 x 1.5 to PG21       2            
Threaded bush M25 with shank nut       3            
Welding bush       4            
Flange bush       5            
Without fixation material       6            
Measurement range Measurement 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          
Measurement 0 … 2.5 m/s         2          
Measurement 0 … 10 m/s         3          
Measurement direction Unidirectional           1        
Bidirectional (only SS 20.415)           2        
Representation of the direction Unidirectional             1      
Switching output OC 1 = direction signal (only SS 20.415, bidirectional)             2      
Representation of the direction with halved analog signal: 0 m/s = 8 mA or 5 V output signal (only SS20.415, bidirectional)             3      
Output signals 0 … 10 V               1    
4 … 20 mA               2    
Adjustment accuracy and calibration Standard adjustment without certificate                 1  
Standard adjustment unidirectional with certificate                 4  
Standard adjustment bidirectional with certificate (SS 20.415 LED only)                 5  
High precision calibration incl. ISO certificate                 2  
High precision calibration incl. ISO calibration certificate, bidirectional                 3  
Sensor programming Factory setting                   1
Customer-specific programming (only SS 20.415) of switching polarity, threshold value, splitting signal, response time                   2