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This  manual  has  been  prepared  to  provide  you  with  the  information  pertinent  to  the  Temperature/

Pressure Compensated FLOW COMPUTER (Liquid service). 
With the proper application of the information and knowledge contained in this manual, you can expect 

the best possible results over a long service life of this instrument. Keep this manual for ready reference.
It is suggested that the instruction manuals for the companion pulse generator (flowmeter) and receiving 

instrument be referred to at the same time.

1

Ins. No. E-883-4N-E

Temperature/pressure compensated

FLOW COMPUTER

 (Liquid service)

 

Model EL4131

Summary of Contents for EL4131

Page 1: ...nowledge contained in this manual you can expect the best possible results over a long service life of this instrument Keep this manual for ready reference It is suggested that the instruction manuals...

Page 2: ...NTERNAL COMPONENTS AND FUNCTIONS 10 6 1 Front Panel 10 6 1 1 Display 10 6 1 2 On Screen Menu Items 10 6 1 3 Error Messages 10 6 1 4 Front Panel Keypad 11 7 CALCULATION FORMULAS 12 7 1 Implementation o...

Page 3: ...1 170 9 EL4501 175 10 DIP SWITCH CONFIGURATION 182 Model with communication capabilities COMMUNICATION MANUAL Ins No E 880CM E CONTENTS 1 COMMUNICATION CAPABILITY OVERVIEW 5 2 NETWORK CONFIGURATION 5...

Page 4: ...ire supply complete informa tion as to the product name model number product number ratings and other pertinent information 1 2 Transportation Precautions 1 In order to safeguard against damage during...

Page 5: ...the companion flowmeter is simple by keystrokes on the front panel keypad or by inserting an IC card into the slot 2 Built around a microprocessor the instrument carries out calculations entirely in d...

Page 6: ...ed to install instruments alongside each other dimensions in Fig 3 2 are suggested 3 Recommended mounting height is given in Fig 3 3 3 2 3 Installation 1 Front mount the instrument through the cutout...

Page 7: ...s are found on the back of the instrument Fig 4 1 4 3 Description of Terminal Blocks for External Connections Terminal blocks for external connections TB1 TB2 and TB3 are found on the back of the inst...

Page 8: ...4 to 20mADC 1 to 5VDC 5 Temp in b Pt100 3 wire 5 6 B 6 Pulse out 1 No Polarity Uncorrected total flow Static relay 7 A 7 8 4 to 20mADC 1 to 5VDC 8 Pulse out 2 No polarity Corrected total flow Static r...

Page 9: ...Same as output pulse unit m3 etc Display capacity 8 digits Corrected total flow Same as output pulse unit m3 C etc Uncorr instant flowrate m3 h etc Corr instant flowrate m3 h C etc Temperature To the...

Page 10: ...nd corrected for temperature is indicated 5 Temperature TEMPERATURE The temperature value currently fed to the instrument is indicated If a problem arises in the course of temperature conversion such...

Page 11: ...ion keys Four round keys Mainly used for function selection such as activating the input conditions selected and recon figuration Shift keys Four triangular keys Used for moving the cursor moving betw...

Page 12: ...ont panel keys and the frequency pulse information flowrate 7 2 Implementation of Temperature Correction Corrected total flow Q2 Q1 K K a b t0 t c t0 t 2 where Q2 Total flow corrected for temperature...

Page 13: ...ems of the total mass flow and total calorific flow and make sure that incoming pulses are being accumulated Also verify that pulse output and analog output are properly generated 5 Remove the simulat...

Page 14: ...ure correction factor 1 Temperature reading correct 1 A fault in internal assembly While fluid is allowed to flow Fails to count pulses fails to produce a pulse output 1 Input signal line correctly wi...

Page 15: ...e range check 12 A D CONVERT ERROR A D converter circuit error 13 DENSITY CONVERT ERROR Density converter circuit error 14 TEMP 1 PT OVER Temperature Pt input 1 overflow 15 TENP 1 PT UNDER Temperature...

Page 16: ...D Converter Press Input Ckt analog Temp Input Ckt analog Temp Input Ckt Pt Analog Output Circuit Pulse Output Circuit 1 Pulse Output Circuit 2 Pulse Output Circuit 3 Multi plexer Isolation Test Pins...

Page 17: ...e N Non Output item 2 Pulse output 2 B 1 Before correction pulse width 1ms B 5 Before correction pulse width 50ms B 9 Before correction special pulse width C 1 After correction pulse width 1ms C 5 Aft...

Page 18: ...am Japanese D W E Wiring diagram English D A J Compression coef cient calculation process Japanese D A E Compression coef cient calculation process English D T J Inspection procedure Japanese D T E In...

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