2. Dwyer
  3. Series EFS2

Dwyer Series EFS2 User manual

  • Hello! I am an AI chatbot trained to assist you with the Dwyer Series EFS2 User manual. I’ve already reviewed the document and can help you find the information you need or explain it in simple terms. Just ask your questions, and providing more details will help me assist you more effectively!
Series EFS2
ELECTROMAGNETIC FLOW SENSOR
INSTRUCTIONS
F-EFS2
SPECIFICATIONS*
GENERAL INFORMATION
TABLE OF CONTENTS
General Information
 .......................................................................................................................................Page 1
Installation

 ............................................................................................................................................Page 2
 .........................................................................................................................
Page 3
 .................................................................................................................................Page 4
Electrical Connections

.........................................................................................................Page 5
Connections Diagrams
Page 6

Page 7
Operation & Maintenance

 ...............................................................Page 8
Caution & Troubleshooting
 ......................................................................................................................Page 9
Page 1
TABLES AND DIAGRAMS
Features .................................................................................................................................................................Page 1
 ........................................................................................................................................................Page 1
 ................................................................................................................Page 2
 .........................................................................................................................
Page 3
 .................................................................................................................................Page 4
 ...............................................................................................................................................Page 5
Page 6

 .................................................................................Page 7
 .............................................................................................Page 8
 .....................................................................................................................................................Page 9

        
     
       



        
      
      

      

       

      

    



        

      






FEATURES

























Pipe Size
Materials Mechanical
Electrodes
Housing
Electrode Cap
O-Ring
Power Full Power
Low Power
Flow Rate
Temperature Ambient Temp
Fluid Temp : Brass/SS
Fluid Temp: PVC
Pressure Brass/SS
PVC
Minimum Conductivity
Calibration Accuracy
Output
Empty Pipe Detection
*Specications subject to change
Hastelloy® is a registered trademark of Haynes International, Inc.
Fitting Installation.



  



   

   




      








Chemical Injection or Fertigation.



      






INSTALLATION
Caution:   
     
 


INSTALLATION
STRAIGHT PIPE RECOMMENDATIONS
(X = pipe diameter)
Page 2
5X
DISTORTED FLOWS
Distorted
Flow Prole
Faster Flow
Causes Meter
To Read High
10X
Page 3
5X
10X
5X10X
5X
20X
5X
20X
30X
50X
Reduced Pipe
Two Elbows In Plane
Two Elbows, Out Of Plane
Expanded Pipe
Swirling Flow
Propeller Meter
Partially Open
Buttery Valve
Spiral Flow


POSITIONING THE METER
BEST POSITIONS
Caution:





Meter Installation.







Caution:   

    


EFS2
EFS2
EFS2
EFS2
EFS2
EFS2
Metallic Pipe
Earth
Ground
Grounding Clamp
INSTALLATION
Page 4 Page 5
ELECTRICAL CONNECTIONS
GROUNDING DIAGRAM
General Electrical Guidelines:
 

 

 

 

   






Power:

Forward Flow Output: 



Note:
Reverse Flow Output:


Note:
PLACE FERRITE BEAD HERE
FULL PIPE RECOMMENDATIONS
Possible Problem:

Better Installation:

Possible Problem:

Better Installation:

Possible Problem:

Better Installation:

Housing
Screw
Grounding Guidelines:
    
   

For Metallic Pipe:



For Non-Metallic Pipe:















CONNECTIONS DIAGRAMS
Page 6
CONNECTIONS DIAGRAMS
COUNTER OR PLC
SERIES BAT 4 to 20 mA OUTPUT








EFS2 SERIES
BAT
SERIES EFS2






+
–





RTI DISPLAY AND PROPORTIONAL FEED






EFS2 SERIES
SERIES EFS2
4 to 20 mA Device























RTI DISPLAY AND 4 to 20 mA OUTPUT
SERIES RTI
SERIES RTI
*

*


*

*

COUNTER OR PLC
DIGITAL INPUT






SERIES EFS2
DUAL SERIES RTI DISPLAYS
(Example of Bidirectional Connection)




*





SERIES RTI
SERIES RTI







Page 7
*
*

Page 8
OPERATION & MAINTENANCE
Zero Adjustment.     






full pipe with no ow



Minimum Flow.



Presence of Flow Indication.   




Filtering.




Calibration (“K-factor”).



tee tting

Find Your K-Factor Here
Page 9
Zero
Adjust
Pins
Electrode Coating.




     

saddle or weldolet
tting
3” 4” 6” 8” 10” 12”
KFACTORS SADDLES & WELDOLETS
Status
LED
PVC/Steel
Sch. 40
PVC/Steel
Sch. 80
Stainless
Steel (10S)
Stainless
Steel (40S)
Copper Tubing
(Type L)
Copper Tubing
(Type K)
Brass Pipe
Duct. Iron
(Class 52)
70.397
78.748
62.385
70.397
76.371
78.371
70.672
57.376
40.985
45.360
36.626
40.985
43.552
44.638
41.517
37.320
18.130
20.084
16.510
18.130
19.513
20.223
17.778
16.915
6.674
7.322
6.173
6.674
7.230
7.500
6.674
6.197
10.497
11.495
9.642
10.497
11.201
11.622
10.445
9.503
NOTE:

4.709
5.184
4.373
4.661
5.016
5.239
4.661
4.325
1” 1-1/2” 2” 3” 4” 6” 8” 10” 12”
• Min
        
@ 0.28 ft/sec
• Max
        
@ 20 ft/sec
FLOW RATE (GPM)
Nominal
Pipe Size
Reverse Output Option
Problem
Probable Cause Try...






































CAUTION & TROUBLESHOOTING
TROUBLESHOOTING
Caution:





PL-OM-65200386-090412
9/04/12
Dwyer Instruments, Inc. • 102 Indiana Highway 212 • Michigan City, IN 46360 • USA
(P) 219.879.8868 • (F) 219.872.9057 • 1.800.872.9141 • www.dwyer-inst.com
WARRANTY/RETURN







/