background image

Bronkhorst®

Instruction Manual EL-FLOW® Classic series

9.17.085D

9

2.5

Inlet filter

Fluids to be measured should be absolutely free of dirt, oil, moisture and other

particles. Fluids that are heavily contaminated or contain particulates are detrimental

to precision. If liquid phases enter the sensor chamber, the function of the sensor and

the mass flow controller may be impaired. It is recommended to install an in-line filter

(offered by Bronkhorst) or liquid separator upstream of the flow controller, and if

backflow can occur, a downstream filter is recommended too. Be aware of the pressure

drop caused by the filter(s). Contact your distributor for further information.

2.6

Electrical connection

2.6.1

Interface

EL-FLOW® Classic 

instruments are analog operated, I/O signals can be provided by means of:

1. Voltage I/O

(0...5Vdc)

2. Current I/O

(4...20mA sourcing)

For electrical hook-up diagram refer to the EL-FLOW® Classic 

hook-up diagram

.

2.6.2

Power supply

EL-FLOW® Classic

 controllers are powered with +15 Vdc to +24 Vdc.

When providing your own power supply be sure that voltage and current rating are according to the specifications of the

instrument(s) and that the source is capable of delivering enough power to the instrument(s). Refer to the EL-FLOW® Classic 

hook-up diagram

, for more details.

The device contains electronic components that are susceptible to damage by

 electrostatic discharge

. Proper handling

procedures must be followed during installation, (dis)connecting and removing the electronics.

The device described in this manual carries the CE-mark and is 

compliant with the concerning EMC requirements

.

However, compliance with the EMC requirements is not possible without the use of proper cables and connector/gland

assemblies. Bronkhorst recommends the use of their standard cables. These cables have the right connectors and if loose

ends are used, these are marked to help prevent wrong connection. When using other cables, cable wire diameters should

be sufficient to carry the supply current, and voltage loss must be kept as low as possible. When in doubt, contact your local

Bronkhorst representative.

When connecting the product to other devices, be sure that the integrity of the shielding is not affected; 

always use

shielded cabling for signals and communication and do not use unshielded wire terminals.

2.7

Powering up and powering down

·

It is recommended to turn on power before applying pressure and to switch off power after removing pressure.

·

For best performance, allow the device to warm up and stabilize for at least 30 minutes before starting measurement

and/or control. This may be done with or without media flow.

Be sure to apply the specified operating pressure(s). Avoid pressure shocks and bring the fluidic system gradually up to the

level of  operating conditions; open and close the fluid supply gently.

2.8

Purging before use

In systems for use with corrosive, reactive or explosive media, purging the fluidic lines of the device for at least 30 minutes

with a dry, inert gas (like Nitrogen or Argon) is absolutely necessary before use. After use with these media, complete

purging is also required before exposing the system to air.

Summary of Contents for EL-FLOW Classic Series

Page 1: ...Pleaseread this Instruction Manualcarefully beforeinstalling and operating theinstrument Notfollowing theguidelines could resultin personalinjury and ordamageto theequipment EL FLOW Classic series Thermal Mass Flow Controllers Instruction Manual ...

Page 2: ...mationwill facilitatetheuseoftheinstrument and or contributetoitsoptimal performance Additional infoavailableontheinternet or from your local salesrepresentative Receipt of equipment Check the outside package box for damage incurred during shipment If the box is damaged then the local carrier must be notified at once regarding his liability if so required At the same time a report should be submit...

Page 3: ...intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury Read the operating information carefully before using the product Before operating make sure the line cord is connected to a properly grounded power receptacle Inspect the connecting cables for cracks or breaks before each use The equipment and accessor...

Page 4: ...Bronkhorst Instruction Manual EL FLOW Classic series 9 17 085D 4 ...

Page 5: ...2 6 2 9 2 7 Powering up and powering down 9 2 8 Purging before use 10 2 9 Zeroing before use 10 2 10 Calibration 11 2 11 Model key 12 Basic operation 3 12 3 1 General 12 3 2 LED indications 13 3 3 Multifunctional switch 13 Normal operating functions 3 3 1 13 Power up functions 3 3 2 14 Advanced operation 4 14 4 1 Using other gases than specified 14 4 2 Conversion factor calculation 14 4 3 Maximum ...

Page 6: ...hmediaandconditions e g pressure temperature asspecifiedat orderingtime Ifyouareplanningtousetheproduct includinganythirdpartycomponents suppliedbyBronkhorst suchaspumpsor valves withother mediaand or other conditions alwaysbesuretocheckthe wettedmaterials includingseals for compatibility Seethetechnical specificationsoftheproduct andconsult thirdparty documentation ifapplicable tochecktheincorpor...

Page 7: ...ed with a clean dry and inert gas In case of severe contamination cleaning the inside of the device may be required After cleaning recalibration of the instrument is recommended Inexpertlyservicinginstrumentscanleadtoseriouspersonal injuryand or damagetotheinstrument or thesystem it is usedin Therefore servicingmust beperformedbytrainedandqualifiedpersonnel Contact your local Bronkhorst representa...

Page 8: ...g The bottom side of the EL FLOW Classic is fitted with two threaded mounting holes for stable mechanical fixation of the instrument Refer to the dimensional drawing for the exact position of the mounting holes For optimal performance observethefollowingguidelines Preferably mount theEL FLOW Classic inanupright position especiallyiftheoperatingpressureishigher than10 bar Whenmountingtheinstrument ...

Page 9: ...ling proceduresmust befollowedduringinstallation dis connectingandremovingtheelectronics Thedevicedescribedinthismanual carriestheCE markandiscompliant with the concerning EMC requirements However compliancewiththeEMC requirementsisnot possiblewithout theuseofproper cablesandconnector gland assemblies Bronkhorst recommendstheuseoftheir standardcables Thesecableshavetheright connectorsandifloose en...

Page 10: ...ing might take longer and the nearest point to zero is accepted The procedure will take approximately 10 seconds When the indication is showing 0 signal and the green indication LED is glowing continuously again then the zeroing action was successful 2 10 Calibration EL FLOW Classicinstruments are Air or N2 calibrated Bronkhorst High Tech B V certifies that all instruments meet the rated accuracy ...

Page 11: ...Bronkhorst Instruction Manual EL FLOW Classic series 9 17 085D 11 2 11 Model key Example F 201CL 009 1K0 A Gas CO Range 1 SLM Analog output 0 5 Vdc ...

Page 12: ...ndon theserial number label 3 2 LED indications green Mode operation mode indication red Error error warning messages The tables below list the different LED indications Green Pattern Time Indication on continuous Normal operation mode off continuous Power off or program not running blink 0 2 sec on 0 2 sec off Special function mode the instrument is busy performing a special function e g auto zer...

Page 13: ...error messages and restart the instrument on off 8 12 sec Auto zero re adjust the zero point of the instrument flow meters controllers on on 12 16 sec Factory mode do not use SeeZeroingbeforeusefor backgroundinformationandinstructionsonhowtoadjust thezeropoint ofaninstrument Never perform azeroingprocedurebeforehavingtakennoticeoftheinstructions 3 3 2 Power up functions In order to access these fu...

Page 14: ...abasecalledFLUIDAT Thisdatabasealso providesacollectionofroutinestocalculatephysical propertiesofgasesandliquids not onlyat 20 C 1 atm but at any temperature pressurecombination bothfor gasesandfor liquids CheckFLUIDAT ontheNet onhttp www fluidat com Consult your distributor for moredetails Also see section Calibration 4 3 Maximum pressure drop For pilot solenoid operated control valves with small...

Page 15: ...ection Check cable hook up No setpoint given or setpoint too low Inlet pressure or differential pressure too low Increase inlet pressure Piping filters and or control valve clogged or blocked Flush fluidic system with clean dry air If problem persists contact Bronkhorst For external proportional control valves supply 0 15 Vdc and operational inlet pressure to valve and slowly increase voltage If v...

Page 16: ...sure or differential pressure too low Increase inlet pressure Use instrument in conditions it was designed for Process gas condensation Decrease inlet pressure or increase gas temperature Piping filters and or control valve clogged or blocked Sensor blocked or contaminated Flush fluidic system with clean dry air If problem persists contact Bronkhorst Supplied fluid type does not match configured f...

Page 17: ...ight product for your application Contact sales by e mail sales bronkhorst com For after sales questions our Customer Service Department is available with help and guidance To contact CSD by e mail support bronkhorst com No matter the time zone our experts within the Support Group are available to answer your request immediately or ensure appropriate further action Our experts can be reached at 31...

Page 18: ...edfrom theService Support sectionoftheBronkhorst website www bronkhorst com Important Clearly note on top of the package the customs clearance number of Bronkhorst High Tech B V NL801989978B01 only if applicable otherwise contact your local Bronkhorst representative for local arrangements 6 2 Disposal end of lifetime Within the scope of the European Union manufacturers of electrical and electronic...

Reviews: