Greenspan EC-2500A Manuale operativo

2250

CONTENTS

1 Introduction ................................................................................................................................. 3

    

   

     

   

    

      

2 Sensor Overview .......................................................................................................................... 6

     

     

    

     

   

      

3 Applications ................................................................................................................................. 8

4 Instrument Details ....................................................................................................................... 9

    

   

    

     

5 Sensor Wiring & Connec�ons ..................................................................................................... 12

    

    

6 Installation and Deployment ConsideraGons ............................................................................. 14

        

      

    

     

      

       

   

7 EC250 Specifications ................................................................................................................. 17

8 Contact Us ..................................................................................................................................18

3250

1 Introduction

1.1 System Description

            

              

    

           

             

       

                 



                

               

 

            

            

  

1.2 CerGfication

             

             

         

•The instrument is visually inspected, marked and labelled.

•The complete sensor calibration record is archived for reference, and batch number

informa�on is kept on file for staDstical analysis.

•An individual Certificate of Conformance is issued to the customer.

4250

1.3 Unpacking and Inspection

              

                 

              

               

                

              

                

   

                    

               

                

            

               

             

1.4 Serial Number

     

              

               

MODEL EC250

RANGE 0 – xxxx μS NORM (S)

S/N 012345

                    

           

1.5 Warranty Policy

            12

months     

                

  

             

            

   

                

           

5250

             

             

   

              

               

       

               

 

            

     

1.6 Factory Service & Repair

             

            

                

            

             

            

                

              

               

            

             

            

             

               

            

                

   

6250

2 Sensor Overview

2.1 Theory of Measurement

                 

                

 

              

               

     

               

               

                

              

         

                

             

         

2.2 Toroidal Sensing Head

             

             

               

              

               

                

              



2.3 Temperature Sensor

           

               

2.4 Microprocessor Control Unit

             

              

                

                 

         

7250

2.5 Supply Voltage

                    

                

              

2.5.1 Calculating the Minimum Supply Voltage

               



Vs = 2 * (Sc * Cr * (Cl / 100)) + Vm



Sc =     

Cr       

Cl    

Vm     

      

Sc = ECfs + PTfs + Sqc



ECfs        

PTfs =       

Sqc     

                      

            

                      

 

Sc     

 

Vs          

   



8250

3 Applications

         

•    

•       

•   

•    

•  

9250

4 Instrument Details

4.1 Sensor Design

        

•    

• 

•      

• 

•    

•    

47mm OD 316 SS or Acetal sensor body

containing microprocessor controlled electronics

Power and Data Cable

Toroidal Sensing Head Double O-ring sealing

Temperature Sensor Moulded cable entry

10 250

4.1.1 Cable Details

             

            

                 

            

                 

               

            

              



4.1.2 Mechanical Specifications

•         

•     

•     

•       

•   

•     

•   

•    

•     

•            

 

                    

                 

           



Cable Construction

1 –Vent Tube: Polyamide

(size ID x OD) 2.40 x 3.20 mm

2 – Aramid Fibre

3 - 12 x Conductors

7 x 0.20 mm Tinned Copper

SecĢon = 0.22mm2 AWG24

InsulaĢon: Polypropylene

(size) = 1.10 mm ± 0.05 mm

4 - Tape: Polyester

5 – Drain Wire: 7x0.20 TinCu

6- Tape: Polyester Aluminium

7 - Jacket: Polyurethane black,

(size OD) 8.05 mm ± 0.15



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









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