Bronkhorst EX-FLOW Mass Flow Manual de usuario

Instruction manual Explosion proof Flow Measurement and control ATEX Doc. no.: 9.17.028N Date: 29-10-2014 ATTENTION Please read this instruction man

BRONKHORST HIGH-TECH B.V. However, as the accuracy of the factor also depends on viscosity, pressure and temperature, special attention should be tak

BRONKHORST HIGH-TECH B.V. 1.6 Control valve 1.6.1 Introduction Control valves are not designed to provide positive shut-off, although some models ha

BRONKHORST HIGH-TECH B.V. 1.6.2 Kv-value calculation This calculation method can be used to determine the Kv-value of the main orifice of a control

BRONKHORST HIGH-TECH B.V. 1.7 Ex-proof Coils 1.7.1 Introduction In our program we know two sorts of coils: (1) Style: XB = II 1 G Ex ia IIC T

BRONKHORST HIGH-TECH B.V. 2 INSTALLATION 2.1 Receipt of equipment Check the outside packing box for damage incurred during shipment. Should the pa

BRONKHORST HIGH-TECH B.V. 2.4 Mounting The mounting position depends on the type of meter. The preferred position is horizontal and at high pressures

BRONKHORST HIGH-TECH B.V. 2.7 Piping BE SURE THAT PIPING IS ABSOLUTELY CLEAN! DO NOT install small diameter piping on high flowrates, because the in

BRONKHORST HIGH-TECH B.V. 2.10 Supply pressure Do not apply pressure until electrical connections are made. When applying pressure to the system, tak

BRONKHORST HIGH-TECH B.V. 3 OPERATION 3.1 General The Bronkhorst High-Tech B.V. Mass Flow Meters/Controllers are designed in such a way that they

BRONKHORST HIGH-TECH B.V. 4 Cables 4.1 Introduction An average two-wire cable has a capacity of 120 pF per meter and an inductivity of 0.67 µH/m.

BRONKHORST HIGH-TECH B.V.

BRONKHORST HIGH-TECH B.V. 4.3 Control system with XB-coil For the XB-coil the calculation is as follows: Because the capacity and inductivity are ne

BRONKHORST HIGH-TECH B.V. 4.5.2 Cable gland assembly customer side Fold the shield of the cable back over the cable (shield must be around the cable)

BRONKHORST HIGH-TECH B.V. 5 MAINTENANCE 5.1 General At normal use, no routine maintenance is required to be performed on the meters or controllers.

BRONKHORST HIGH-TECH B.V. 6 TROUBLESHOOTING 6.1 General For a correct analysis of the proper operation of a mass flow meter/controller it is recomme

BRONKHORST HIGH-TECH B.V. page 24 9.17.028

APPENDIX 1 GAS CONVERSION TABLE Doc. no.: 9.02.071

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GAS CONVERSION FACTOR Nr.: Name: Symbol Density ρng l[ / ] 0°C, 1 atm. Heat capacity* c cal cal g Kp− [ / . ]20°C, 1 atm. Conversion factor 20°C, 1 a

GAS CONVERSION FACTOR Nr.: Name: Symbol Density ρng l[ / ] 0°C, 1 atm. Heat capacity* ccal calg Kp− [/. ]20°C, 1atm. Conversion factor 20°C, 1 atm. 5

APPENDIX 2 EC Declaration of Conformity EC Declaration of Conformity * * Also available on the Documentation / software

BRONKHORST HIGH-TECH B.V. Even though care has been taken in the preparation and publication of the contents of this manual, we do not assume legal or

APPENDIX 3 Enclosures (if applicable) Calibration certificate(s) Declaration on contamination Dimensional drawings Hook-up diagram Trans

BRONKHORST HIGH-TECH B.V. Short-Form Operation Instruction Before installing your Mass Flow Meter/Controller it is important to read the attached l

BRONKHORST HIGH-TECH B.V. TABLE OF CONTENTS 1 Intrinsic safe sensors 1.1 General description ...

BRONKHORST HIGH-TECH B.V. 4 Cables 4.1 Introduction ...

BRONKHORST HIGH-TECH B.V. 1 INTRINSIC SAFE SENSORS 1.1 General description The Bronkhorst High-Tech B.V. series mass flow meter is an accurate de

BRONKHORST HIGH-TECH B.V. 1.4 Bronkhorst High-Tech B.V. flowhead The flowhead has the following type of protection: II 2 G Ex ib IIC T4 Gb II 2 G

BRONKHORST HIGH-TECH B.V. 1.5 Gas conversion factors The general formula for determining the relationship between signal and mass flow is: V K c K c