Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for KROHNE BW25
Summary of Contents for KROHNE BW25
- Page 1 BW25 BW25 BW25 BW25 Supplementary instructions Supplementary instructions Supplementary instructions Supplementary instructions Ex supplementary instructions Equipment category II 1/2 G © KROHNE 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en...
-
Page 2: Table Of Contents
4.4 Earthing and equipotential bonding ................16 5 Operation 5.1 Start-up........................... 17 5.2 Operation ........................17 5.2.1 Version BW25/.././M9./../.../ ....................17 5.2.2 Version BW25/.././M10 ......................17 6 Service 6.1 Maintenance ........................18 6.2 Dismantling ........................20 7 Notes www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 3: Safety Instructions
PTB 05 ATEX 1053 X PTB 05 ATEX 1053 X PTB 05 ATEX 1053 X If required the EC Type Test Certificate can be downloaded under www.krohne.com. 1.3 Security information Assembly, installation, start-up and maintenance may only be performed by personnel trained in... -
Page 4: Device Description
• 2-wire current output 4…20 mA, HART communication 2 BW25/M10 • Ex d flameproof enclosure • 2 digital adjustable limit switches, 2-wire open collector or type NAMUR ® • 2-wire current output 4…20 mA, HART communication www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 5: Description Code
5 Electrical signal output ESK - Electronic transmitter 6 Limit switch K1 - One limit switch K2 - Two limit switches * positions which are not needed are omitted (no blank positions) 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en www.krohne.com... -
Page 6: Nameplate
8 Note manual 9 KROHNE website Additional markings on the indicator • SO - sales order / item • KO - KROHNE order • Vx - product configurator code • AC - article code www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 7: Flammable Products
60079-14 for use in Zone 0. The converters are designed for Category 2 as per RL 94/9 EC for use in Zone 1. 2.6 Types of protection BW25/.././M9./.. converters without electric components are supplied as type of protection constructional safety "c". Electrical circuits for M9. converters with limit switches or electronic signal outputs are supplied as intrinsically safe, category "ia"... -
Page 8: Ambient Temperature / Temperature Classes
Insulation must be limited to the piping. • Unobstructed ventilation of the indicator part must be ensured. To do this, the variant with a projecting indicator (HT version) is preferable. www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... - Page 9 1 heat-resistant cable Tmin ≤90°C Maximum permissible product / flange temperature T [°F] BW25/.././M9./../.../.. Device version Operation in temperature class and T Display Installat ≤104°F ≤140°F ESK/K. ESK/K. ESK/K. ESK/K. 1 heat-resistant cable Tmin ≤194°F 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en www.krohne.com...
- Page 10 SJ3.5-SN optional SJ3.5-S1N SC3,5-N0-Y I7S23,5-N optional M9S / M9T SJ3.5-SN optional I7S23,5-N Maximum permissible product / flange temperature Tm [°C] BW25/.././M9./.. without electrical components Display -40...+60°C -40...+140°F 300°C 572°F 400°C 752°F Maximum permissible product / flange temperature Tm [°C] BW25/.././M10 -40...+60°C...
-
Page 11: Electrical Data
When connecting the I/O interfaces for BW25/.././M10 liquid level indicators, the following data shall be taken into account: Only for connection to circuits with "protected extra-low voltage (PELV)" . For nominal values I/O function and nominal values of the non-certified slave see BW25 handbook. 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 12: Installation
DIN EN 60079-1 (note thread quality and thread length). When using the auxiliary connection, the operator must ensure that no prohibited changes are made to the process conditions (e.g. pressure, temperature, etc.). www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 13: Electrical Connections
The level meter comes standard with a blanking plug and a cable entry. These elements guarantee protection from foreign bodies and water (protection type) IP65 as per EN 60529. Consult the "Technical Data" section in the BW25 handbook for the nominal diameter range for the cable entries. -
Page 14: Electrical Connection Bw25
Connecting cables shall comply with relevant installation standards (e.g., EN 60079-14 / VDE 0165). The outer diameter of the connecting wires shall conform to the cable clamping area for the supplied cable entries. www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... - Page 15 The wiring for the liquid level indicator's electrical connection shall be fixed. • BW25/.././M10 liquid level indicators do not require a separate power supply. The required supply is provided via the current output. • Before connecting or disconnecting the electrical connection cables of the device, make sure that all cables leading to the converter are isolated from the ground of the hazardous area.
-
Page 16: Earthing And Equipotential Bonding
The position of the ground terminal is illustrated below. This bond only provides an electrostatic connection for the device and does not fulfil the requirements for an equipotential connection. Also ensure that the mounting screws for the indicator are firmly tightened. www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 17: Operation
• Check that the liquid level indicator is properly mounted on the container, including any auxiliary equipment such as the reference vessel and/or the auxiliary connections • Check that the equipotential bonding system is connected properly (BW25/.././M10 only) • Check that the electrostatic ground is connected properly (BW25/.././M9/../…/.. only) •... -
Page 18: Service
Within the scope of checks required to be carried out in hazardous areas to maintain systems in proper working order, the following visual inspections should be carried out at regular intervals: • Inspect the housing, cable entries and incoming cables for signs of corrosion or damage. www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... - Page 19 (e.g., check for existence of a flammable liquid or explosive atmosphere in or at the tank or pressurized tank) and is the responsibility of the operator. Dismantling Follow the instructions for removing the entire device refer to on page 20. 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en www.krohne.com...
-
Page 20: Dismantling
Maintenance Maintenance Maintenance work of a safety-relevant nature within the meaning of explosion protection may only be carried out by the manufacturer, his authorised representative or under the supervision of authorised inspectors. www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en... -
Page 21: Notes
NOTES BW25 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en www.krohne.com... - Page 22 NOTES BW25 www.krohne.com 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en...
- Page 23 NOTES BW25 03/2010 - 4000862901 MA BW25-Ex-II1/2G-AD R01 en www.krohne.com...
- Page 24 • Measuring systems for the marine industry Head Office KROHNE Messtechnik GmbH Ludwig-Krohne-Str. 5 47058 Duisburg (Germany) Tel.:+49 (0)203 301 0 Fax:+49 (0)203 301 10389 info@krohne.de The current list of all KROHNE contacts and addresses can be found at: www.krohne.com...