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       Barksdale Control Products 公司介紹
                        		
        
      
        
      
           
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
          
      		
           
        
      
        
      
          
        
      
        
      
          
      		
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
                  
                		
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
          
        
      
        
      
          
        
      
        
      
           
        
      
        
      
          
      		
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      Barksdale's 440 Series Intrinsically Safe Transducers
      
        Series 443, 445, 446 
      
        
       
      
        
      Description 
      
        
      Barksdale's 440 Series Intrinsically Safe Transducers provide high accuracy pressure measurement when operating in Class I, Division I environments. Intrinsically safe transducers prevent personal injury and machinery damage by preventing the explosion in the first place. External zener barriers are required in order to meet UL requirements for an intrinsically safe installation. The higher cost of having to install a zener barrier is offset with the comfort of knowing that an explosion will not occur within normal operating conditions. Three models are available: Series 443 (0-5V), Series 445 (4-20mA) and Series 446 (0-10V). 
      
        
      
        
       
      
        
       
      
        
      Features 
      
        
        
          
      • High accuracy 
        • 
          
      • Protection in hazardous environments, Class I, Div 2 
        • 
          
      • Superior EMI, ESD and RFI protection 
        • 
          
      • Rugged all-welded stainless steel construction 
        • 
          
      • NEMA 4X 
        • 
          
      • Built-in high pressure snubber (2000 psi and above) 
        • 
          
      • cULus, CE approved 
        • 
          
      • ATEX approved - 445 only 
        • 
        
      
        
       
      
        
      Technical specifications 
      
        
      General Specifications* 
      
        
      
          
      
            Accuracy (LH & R): 
            ±0.25% FSO at 75°F (±0.5% for vacuum only [-23]) typical 
          
      
          
      
            Long Term Stability: 
            ±0.5% FSO of calibration curve 
          
      
          
      
            Typical Life Cycle: 
            100 million cycles 
          
      
          
      
            Proof Pressure: 
            2 times rated pressure or 13,000 psi max. (884 bar), whichever is less 
          
      
          
      
            Input: 
      
      443: 
      
      446: 
      
      445:       		
            
      
      Excitation voltage: 11 to 28 VDC 
      
      Excitation voltage: 14 to 28 VDC 
      
      Excitation voltage: 12 to 28 VDC       		
          
      
          
      
            Supply Current: 
            3.0 mA maximum (no load) 
          
      
          
      
            Output: 
      
      443: 
      
      
      
      
      
      
      
      446: 
      
      
      
      
      
      
      
      445:       		
            
      
      Output: 0.5 to 5.5 VDC 
      
      Full scale output: 5.0 VDC ± 0.8% 
      
      Zero output: 0.5 VDC ± 0.4% 
      
      
      
      Output: 1 to 11 VDC 
      
      Full scale output: 10 VDC ± 0.4% 
      
      Zero output: 1.0 VDC ± 0.2% 
      
      
      
      Output: 4 to 20 mA 
      
      Full scale output: 16 mA ± 1% 
      
      Zero output: 4 mA ± 2%       		
          
      
          
      
            Wetted Parts: 
            17-4 PH (fitting) & 300 stainless steel (sensor) 
          
      
          
      
            Enclosure: 
            NEMA 4, 300 series stainless steel 
          
      
          
      
            Response Time: 
            2 kHz 
          
      
          
      
            Pressure Connection: 
            1/4”-18 NPT male 
          
      
          
      
            Electrical Connection: 
            3 conductor for voltage series and 2 conductor for current series, 24 awg, PVC jacketed, shielded cable, 3 ft. (1 m) long with integral strain relief and case ground (standard). 
          
      
          
      
            Temperature Ranges: 
      
      Operating: 
      
      Compensated: 
      
      Storage:       		
            
      
      -40° to 158°F (-40° to 70°C) 
      
      -40° to 158°F (-40° to 70°C) 
      
      -40° to 185°F (-40° to 85°C)       		
          
      
          
      
            Temperature Shift: 
      
      Zero & Span:       		
            
      
      0.01% per °F over compensated range reference       		
          
      
          
      
            Vibration: 
            15 g's, 10-2000 Hz, MIL-STD 202 
          
      
          
      
            Shock: 
            50 g's, 11 mS, MIL-STD 202 Method 213, Cond. G. 
          
      
          
      
            Approvals: 445 only: 
            Intrinsically safe pressure transducers are UL and cULus approved as telemetering equipment for use in hazardous locations (UL File E146589, WYMV, WYMV7) as follows: 
      
                
      
      Class I, Div. 1, Groups A, B, C & D 
      
      Class II, Groups E, F & G, when installed in accordance with control drawing 272148 (443); TD-B77 (445); 272147 (446). 
      
      
      
      ATEX/IECEx Certification: 
      
      CE 0081 Ex II 1 G D, Ex ia IIC T4 Ga, 
      
      Ex ia IIIC T135°C Da, -40°C to 70°C, 
      
      DEMKO 09 ATEX 143402, IECEx UL 13.0069       		
          
      
          
      
            Weight: 
      
      443 & 446: 
      
      
      
      
      
      445:       		
            
      
      7.4 oz. (221 grams) to 1000 psi 
      
      9.9 oz. (281 grams) 2,000 psi and higher 
      
      
      
      7.4 oz. (210 grams) to 1000 psi 
      
      9.4 oz. (266 grams) 2,000 psi and higher       		
          
      
          
      
            Warranty: 
            1 year warranty 
          
      
          
      
            * See product confi gurator for additional options. 
          
      
        
      
        
       
      
        
      Wiring Code 
      
        MILLIVOLT SERIES - 443 & 446 
      
          
      
          
      
            (T4/T5) 
            (H3/H5) 
            Signal 
          
      
          
      
            1 
            Red 
            + Excitation 
          
      
          
      
            3 
            White 
            + Output 
          
      
          
      
            2 
            Black 
            Common 
          
      
          
      
            4 
            Bare 
            Case Drain 
          
      
          
      
            MILLIAMP SERIES - 445 
          
      
          
      
            1 
            Red 
            + Excitation 
          
      
          
      
            2 
            Black 
            - Excitation 
          
      
          
      
            4 
            Bare 
            Case Drain 
          
      
        
      
        
       
      
        

      
        
      
            		
    
      
    
    
      
      
      		
    
      
    
      
              
      
        
      
        Since 2007         
      		 
       
              

      
            
      
        美國DMK Engineering Solutions公司
      
信德邁科技(北京)有限公司 CNMEC Technology
      

      
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