KROHNE DK 46 Supplementary Instructions Manual Download

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Variable area flowmeters

without electrical built-ins

Type series DK32, DK34, DK37 M8M, DK37 M8MR, H250 M8MG, H250 M8MGR,

H250 M40, H250 M40R, DK46, DK47, DK48, DK800, GA24, VA40

Equipment category II 2 G, II 2 D

VA FLOWMETERS

Supplementary Instructions

Summary of Contents for DK 46

Page 1: ...ilt ins Type series DK32 DK34 DK37 M8M DK37 M8MR H250 M8MG H250 M8MGR H250 M40 H250 M40R DK46 DK47 DK48 DK800 GA24 VA40 Equipment category II 2 G II 2 D VA FLOWMETERS Supplementary Instructions KROHNE...

Page 2: ...s of protection 12 2 7 Ambient temperature Product temperature 13 2 8 Surface temperature 15 2 9 Ignition hazard assessment protective measures 16 3 Installation 17 3 1 Mounting 17 3 2 Special conditi...

Page 3: ...rer in accordance with ISO 80079 36 2016 und ISO 80079 37 2016 Third party certification is not required in accordance with the conformity assessment procedure for non electrical equipment group II ac...

Page 4: ...sembly installation start up and maintenance may only be performed by personnel trained in explosion protection CAUTION The operator or his agent is responsible for observing any additional standards...

Page 5: ...with valve and horizontal connection 34 without valve and vertical connection 2 Optional flow regulator RE for variable inlet pressure RA for variable outlet pressure 3 High temperature version HT hig...

Page 6: ...housing in stainless steel 6 Version Ex explosion protected version Figure 2 4 Safety description code for the type series of H250 M40 1 Type series of measuring unit H250 H250 standard version vertic...

Page 7: ...300 mm 11 8 800 Overall length of measuring cone 100 mm 3 9 3 Material for top and bottom fittings N brass R stainless steel PV PVDF 4 Flow regulator RE flow regulator for variable inlet pressure RA f...

Page 8: ...DK34 DK32 HT DK34 HT Figure 2 8 Example of a nameplate for DK32 HT ATEX Nameplate DK32 DK34 DK32 HT DK34 HT Figure 2 9 Example of a nameplate for DK32 HT UKCA DK32 HT P A 123456789 001 S N D TS 200 C...

Page 9: ...0419908 AD VA Mech Ex Gb Db R08 en Nameplate H250 M40 DK37 M8M DK37 M8M R H250 M8MG H250 M8MG R Figure 2 10 Example of a nameplate for H250 M40 ATEX Nameplate H250 M40 DK37 M8M DK37 M8M R H250 M8MG H2...

Page 10: ...g No registration number Tamb max ambient temperature VG V number Germany SO order number PA production order number AC article code Nameplate VA40 GA24 DK46 DK47 DK48 DK800 Figure 2 12 Example of a n...

Page 11: ...uring unit piping WARNING Operation with flammable products is only permitted as long as no explosive fuel air mixture builds up inside of the piping at the same time the atmospheric conditions are ex...

Page 12: ...flammable dust in the air under normal operation Device type Gas range Dust range DK32 DK34 DK37 II 2G Ex h IIC T6 T3 Gb II 2D Ex h IIIC T150 C Db DK32 HT DK34 HT H250 M8MG II 2G Ex h IIC T6 T3 Gb II...

Page 13: ...ype Temp class Surface temperature Maximum permissible Ambient temperature in C Product temperature in C DK32 DK34 T6 T85 C 40 70 40 85 T5 T100 C 40 100 T4 T135 C 40 135 T3 T150 C 40 150 DK32 HT DK34...

Page 14: ...T275 F 25 275 25 275 T3 T392 F 25 392 25 392 DK37 M8M T6 T185 F 40 158 40 185 T5 T212 F 40 212 T4 T275 F 40 275 T3 T302 F 40 302 H250 M8MG T6 T185 F 40 158 40 185 T5 T212 F 40 212 T4 T275 F 40 275 T3...

Page 15: ...itself does not generate heat and for this reason the surface temperature is determined by the product temperature and in versions with heating jackets by the heating medium temperature as well The na...

Page 16: ...e must be taken Shock resistance Metal cones Tests with high energy None Surface temperatures None as no self warming occurs Note max permissible product and ambient temperatures Oxygen in conjunction...

Page 17: ...ers are tested on measuring units optional valves and controllers for shock resistance with 4 Joules in accordance with ISO 80079 36 for device group II with a low degree of mechanical risk The sight...

Page 18: ...n page 21 Unpainted indicators Unpainted DK3x HT indicators must not be used in corrosive environments 3 3 Grounding and equipotential bonding If the device is not sufficiently electrostatically groun...

Page 19: ...A Mech Ex Gb Db R08 en Figure 3 3 Ground terminal for DK37 M8M Figure 3 4 Ground terminal for H250 M8MG INFORMATION The indicator housing of M8M is made of conductive plastic Friction cannot cause ele...

Page 20: ...7 Ground terminal for GA24 INFORMATION The grounding and are equivalent INFORMATION The temperature at the electrostatic equalisation connector on the DK32 DK34 and DK37 measuring units corresponds to...

Page 21: ...sible temperatures and pressures Variable area flowmeters may only be operated if the equipment parts necessary for safety are effective in the long run and are not rendered inoperable during operatio...

Page 22: ...ctive built ins e g liners floats For all metal devices the measuring tube and the welded on process connections form a shield Faraday cage from which the electrical field cannot escape In glass devic...

Page 23: ...ommended Check the housing for corrosion or damage Check the measuring unit and the piping connections for leakage Check the measuring unit and the indicator for dust deposits Include the flowmeter in...

Page 24: ...suring unit in accordance with the standard manual for non explosion protected versions The measuring unit must be dismantled for cleaning This dismantling will need to be coordinated with operating c...

Page 25: ...NOTES 6 25 VA FLOWMETERS www krohne com 09 2022 4000419908 AD VA Mech Ex Gb Db R08 en...

Page 26: ...6 NOTES 26 VA FLOWMETERS www krohne com 09 2022 4000419908 AD VA Mech Ex Gb Db R08 en...

Page 27: ...NOTES 6 27 VA FLOWMETERS www krohne com 09 2022 4000419908 AD VA Mech Ex Gb Db R08 en...

Page 28: ...solutions Engineering commissioning calibration maintenance and training services Head Office KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany Tel 49 203 301 0 Fax 49 203 301 10389...

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