KROHNE DK32 Supplementary Instructions Manual
Variable area flowmeters without electrical built-ins
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- Handbook (52 pages) ,
- Supplementary instructions manual (24 pages) ,
- Supplementary instructions manual (16 pages)
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VA FLOWMETERS
Supplementary Instructions
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
© KROHNE 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en
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Summary of Contents for KROHNE DK32
- Page 1 Supplementary Instructions 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 © KROHNE 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en...
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Page 2: Table Of Contents
4.3.1 Electrostatic charge caused by ambient conditions ............21 4.3.2 Charging non-conductive external parts by cleaning ............22 4.3.3 Process dependent charging ....................22 5 Service 5.1 Dismantling ........................23 5.2 Maintenance ........................23 6 Notes www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en... -
Page 3: Safety Instructions
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 according amendment to regulation 39. 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... -
Page 4: Safety Instructions
The operator or his agent is responsible for observing any additional standards, directives or laws if required due to operating conditions or place of installation. This applies in particular to the use of easily detachable process connections when measuring flammable media. www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en... -
Page 5: Device Description
2.2 Designation code The safety designation code consists of the following elements *: Figure 2-1: Safety designation code for the type series of DK32 / DK34 1 Type series of measuring unit DK 32 - with valve and horizontal connection... - Page 6 M40 - aluminium housing, painted (standard) M40R - stainless steel housing 5 High-temperature version blank - without HT extension HT - with HT extension 6 Version Ex - explosion-protected version www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en...
- Page 7 R - stainless steel 1.4404 (316 L) ST - steel, electroplated and chromised PV - plastic PVDF * positions which are not needed are omitted (no blank positions) 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com...
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Page 8: Marking
Ex h IIIC T200°C Db IP: 66/68 Tamb -25°C ... +200°C Figure 2-8: Example of a nameplate for DK32 HT (ATEX) Nameplate DK32, DK34, DK32 .. HT, DK34 .. HT PESR/G1/8/SEP Figure 2-9: Example of a nameplate for DK32 HT (UKCA) www.krohne.com... - Page 9 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, H250/M8MG/R Figure 2-11: Example of a nameplate for H250 M40 (UKCA) 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com...
- Page 10 • Tamb. - max. ambient temperature • VG - V number, Germany • SO - order number • PA - production order number • AC - article code www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en...
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Page 11: Flammable Products
DK46 / DK47 20-times DK48 / DK800 DK46PV / DK47PV 0.001 20-times DK48PV / DK800PV Table 2-1: Minimum conductivity of product and maximum flow for the device type 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... -
Page 12: Equipment Category
The marking of the non-electrical versions for the device type is: 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 II 2G Ex h IIC T6...T3 Gb... -
Page 13: Ambient Temperature / Product Temperature
Ambient temperature Product temperature in °C in °C DK32 / DK34 T85°C -40...+70 -40...+85 T100°C -40...+100 T135°C -40...+135 T150°C -40...+150 DK32 HT / DK34 HT T6 T85°C -25...+85 -25...+85 T100°C -25...+100 -25...+100 T135°C -25...+135 -25...+135 T200°C -25...+200 -25...+200 DK37 / M8M T85°C... - Page 14 Ambient temperature Product temperature in °F in °F DK32 / DK34 T185°F -40...+158 -40...+185 T212°F -40...+212 T275°F -40...+275 T302°F -40...+302 DK32 HT / DK34 HT T6 T185°F -25...+185 -25...+185 T212°F -25...+212 -25...+212 T275°F -25...+275 -25...+275 T392°F -25...+392 -25...+392 DK37 / M8M T185°F...
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Page 15: Surface Temperature
The nameplate shows the maximum values of the temperature classes and the maximum surface temperature. Depending on the device version, these values may not be reached. The maximum permitted ambient and product temperatures can be found in the standard manual. 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... -
Page 16: Ignition Hazard Assessment / Protective Measures
Marking in the type marking Equipment with titanium surfaces may only M8MG sparking on (Ti) be used in shock-resistant areas. titanium DK32 / DK34 / Marking with material code surfaces DK37 (e. g. 3.7025, 3.7035 or 3.7055) on the measuring unit H250/C... -
Page 17: Installation
ISO 80079-36 for device group II with a low degree of mechanical risk. If the degree of mechanical risk is higher, additional protective measures must be taken on-site. 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... -
Page 18: Grounding And Equipotential Bonding
The location of the ground terminal is shown below according to type. This connection only ensures electrostatic grounding of the device and does not meet the requirements for equipotential bonding. Figure 3-1: Ground terminal for DK3. mechanical flowmeter or DK32 with ESK3x transmitter Figure 3-2: Ground terminal for H250/M40 www.krohne.com... - Page 19 The indicator housing of M8M is made of conductive plastic. Friction cannot cause electrostatic charge. Figure 3-5: Ground terminal for DK46 / DK47 / DK 48 / DK800 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com...
- Page 20 The grounding ① and ② are equivalent. INFORMATION! The temperature at the electrostatic equalisation connector on the DK32, DK34 and DK37 measuring units corresponds to the process temperature. It is thus the responsibility of the operator to select the connecting cable according to the process temperature.
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Page 21: Operation
• processes that generate strong charges, • mechanical friction and cutting processes, • spraying of electrons (e.g. in the vicinity of electrostatic painting systems) or • pneumatically conveyed dust is exposed. 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... -
Page 22: Charging Non-Conductive External Parts By Cleaning
This connection only ensures the electrostatic grounding of the device and does not meet the requirements for equipotential bonding. www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en... -
Page 23: Service
• no charge is applied to the inner surfaces of the housing. • any damaged gaskets are replaced. The cover is to be closed following maintenance work on the M40 indicator. 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... - Page 24 To do this, follow the instructions for exchanging the entire device (for details refer to Dismantling on page 23). www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en...
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Page 25: Notes
NOTES VA FLOWMETERS 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com... - Page 26 NOTES VA FLOWMETERS www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en...
- Page 27 NOTES VA FLOWMETERS 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en www.krohne.com...
- Page 28 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 info@krohne.de The current list of all KROHNE contacts and addresses can be found at: www.krohne.com...
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