PHYSICAL DATA 


GENERAL

    
Media:    Air  
Ranges:    0-200, 0-1000, 0-3000, 0-12,000 FPM (field selectable: referenced to 
standard conditions)  

ELECTRICAL

    
Power Supply:    18-24 VAC, 22-28 VDC  
Output Signal:    4-20 mA DC  
Loop Resistance:    0-300 OHMS  
Current Consumption:    250 mA Maximum  
Warm-up Time:    3 to 5 minutes  

PERFORMANCE

    
Zero Output:    4 mA  
Full Span Output:    20 mA  
ACCURACY:    (% of F.S.)  
0-200 fpm range    ±5% @ 32-180°F
±9% @ 0-32°F or 180-200°F
 
0-1000, 0-3000 or
0-12,000 fpm ranges    ±2% @ 32-180°F
±6% @ 0-32 or 180-200°F  

ENVIRONMENTAL

    
Temperature Ranges:    Operating, -32 to 160°F
Storage, 0 to 200°F  

MECHANICAL

    
Weight:    3 lbs  
Probe length:    12 inches  
Cable length:    6 feet  

STOCKED MODELS.................................
640-0 Air Velocity transmitter..........................
A-398 Probe extension adapter.......................