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

Pressure Compensated FLOW COMPUTER (Gas 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.

Ins. No. E-882-4-E

Temperature/pressure compensated

FLOW COMPUTER

(Gas service)

Model EL4121

Содержание EL4121

Страница 1: ...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 manual...

Страница 2: ...6 INTERNAL COMPONENTS AND FUNCTIONS 9 6 1 Front Panel 9 6 1 1 Display 9 6 1 2 On Screen Menu Items 9 6 1 3 Error Messages 10 6 1 4 Front Panel Keypad 10 7 CALCULATION FORMULAS 11 7 1 Implementation o...

Страница 3: ...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 3...

Страница 4: ...ou inquire 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...

Страница 5: ...n also carry out calculations as a pressure compensator with temperature value fixed 2 1 Features 1 Changing the meter factor ranges of temperature pressure or other parameters of the companion flowme...

Страница 6: ...at ambient temperatures up to 50 C it is recommended that the instrument be placed in service at room temperature 3 Provide a sufficient working space behind the instru ment at least 50 centimeters f...

Страница 7: ...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 instrument as shown in Fig 4 1 Ter...

Страница 8: ...4VAC or 20 to 30VDC 2 N 3 Ground Screws on the terminal block M3 5 Pt100 3 wire 5 PRODUCT CODE EXPLANATION Table 5 1 Item Product Code Description Model E L 4 1 2 1 Temperature pressure compensated fl...

Страница 9: ...alibrated for meter error and corrected for temperature and pressure is indi cated 5 Temperature TEMPERATURE The temperature value currently fed to the instrument is indicated If a problem arises in t...

Страница 10: ...tion can store a maximum of 20 events each of which consists of year month day hour and minutes of error occurrence and recovery Complete details are covered in the Key Operation Manual 6 1 4 Front Pa...

Страница 11: ...273 15 K p Line pressure MPa p0 Correction reference pressure MPa t Line temperature t0 Correction reference temperature is a correction factor as a quadratic factor of temperature and pressure Consta...

Страница 12: ...yed NOTE See the KEY OPERATION MANUAL 3 Inject a simulated input pulse train or density signal representing the type of the companion pulse generator 4 Select display menu items of the total mass flow...

Страница 13: ...messages PRESS 1 OVER or PRESS 1 UNDER Same also with PRESS 2 1 Input signal line correctly wired 2 Input signal specifications matched 3 System configured correctly 4 Pressure range set correctly 1...

Страница 14: ...ty converter circuit error 14 TEMP 1 PT OVER Temperature Pt input 1 overflow 15 TENP 1 PT UNDER Temperature Pt input 1 underflow 16 TEMP 2 PT OVER Temperature Pt input 2 overflow 17 TEMP 2 PT UNDER Te...

Страница 15: ...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 Test Pins Internal Volt B...

Страница 16: ...rature To the 2nd decimal place when C is selected Pressure To the 4th decimal place when MPa is selected Correction factor To the 4th decimal place Meter error corr factor To the 5th decimal place 3...

Страница 17: ...E 882 4 E All specifications are subject to change without notice for improvement 2017 01 Revised 2008 08 Released E 882 4 E 1...