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Summary of Contents for KROHNE BM 70 A-Ex
- Page 1 07/2010 - 4000662402 Supplementary Installation and operating instructions Level-Radar PTB 99 ATEX 2061X BM 70 A-Ex BM 70 Ai-Ex BM 70 P-Ex BM 70 Pi-Ex BM 700-Ex BM 702-Ex BM 702 A-Ex...
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Page 2: Table Of Contents
5.3.1.3. Connection power supply and I/O Function ............25 Start-up ..........................26 Operation ..........................26 Preventive maintenance.......................26 8.1. Signal converter .......................26 8.2. Flange systems........................27 Dismantling...........................27 9.1. Replacement of the signal converter.................27 9.2. Replacement of complete device..................28 Maintenance..........................28 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 3: General Safety Information
(see also Annex A.1 “EC Type Test Certificate“). Assembly, installation, start-up and maintenance may only be carried out by personnel who have been specially ‘trained in explosion protection’! www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 4: Safety-Relevant Type Code
: Gasket of FFKM 4079 K6230 : Gasket of FFKM 6230 K6375 : Gasket of FFKM 6375 FEPS : FEP coated Silicone : FPM, e.g. Viton™ : FEP coated FPM : Gasket PFA- coated stainless steel spring 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... - Page 5 Rod 2B, 3B Field of application, Device Group II : Category 1G, (application in Zone 0) (1) : Category 2G, (application in Zone 1) (1) Note ! See Section 3.2.1 for restricted application in Zone 0 www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en...
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Page 6: Main Safety-Relevant Characteristics
For all device variants BM 70A./.-Ex, BM 70P./.-Ex and BM 700/.-Ex, the sealing covers of terminal compartment and electronics compartment are secured by special locks. The locking screw requires use of an Allan key (4 mm size). 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 7: I/O Functions
Ex ia IIC or Ui = 30V Ii = 250mA Pi = 1,0W Ex ib IIC Ci = 11nF Li = negligible The intrinsically safe circuit is galvanically isolated from ground (test voltage > 500 VAC). www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 8: Flange Systems
When this screw is removed, the operator is responsible for ensuring conformance with the ’Ex’ requirements pertaining to the purging system (e.g. fitting a flame trap). The operator is also responsible for selection of a suitable purging medium. 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 9: Bm 70
Zone 1/Gas Group II B. Limitation to atmospheric conditions in accordance with EN 60079-26 By using the standard microwave window of stainless steel (Type SS) the allowed flange / product temperature is minimum -30 °C. www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 10: Tank Connections
For that reason, the devices are not allocated to any specific temperature class; rather, the temperature class of the devices is a function of the actual product temperature. 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 11: Bm 70
Where product temperature is > 100°C, a heat-resistant cable with a continuous service temperature of 80°C is required. Application limitation for measuring devices BM 702-Ex / BM 702 A-Ex Maximum flange Maximum Ambient Temperature Class temperature [°C] temperature [°C] www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... - Page 12 Ambient temperature < 55°C observe application limitation for measuring devices BM 702-Ex / BM 702 A-Ex Application limitation for measuring devices BM 702-Ex / BM 702 A-Ex Maximum flange Maximum Ambient Temperature Class temperature [°C] temperature [°C] 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com...
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Page 13: Bm 70
BM 702-Ex / BM 702 A-Ex Figures in brackets in conjunction with rod 2B Application limitation for measuring devices BM 702-Ex / BM 702 A-Ex Maximum flange Maximum Ambient Temperature Class temperature [°C] temperature [°C] www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 14: Identifying Marking
II XXX Ex de IIC T6…T1 Tamb: -XX°C…+55°C Tamb: -XX°C…+55°C information Power Supply with tolerances Hilfsenergie Hilfsenergie Power Supply: XXXXXXXXXXXXXX Power Supply: XXXXXXXXXXXXXX Ausgangssignale Ausgangssignale Type of Output Signal: Output Signal: XXXXXXXXXXXXXX XXXXXXXXXXXXXX Signal output Safety information 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 15: Signal Converter With Intrinsically Safe Signal Outputs
Power Supply: XXXXXXXXXXXXXX Intrinsically safe passive outputs Klemme / Terminal: x/x : Ui=xxV Ii=xxxmA Pi=xW Ci=xnF Li~0 Type of Klemme / Terminal: x/x : Ui=xxV Ii=xxxmA Pi=xW Ci=xnF Li~0 Signal output Safety information www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 16: Flange Systems V96 Or Ws With Tank Mounting Flange (All Versions)
Flange systems V96 or WS with tank mounting flange (all versions) Manufacturer Year of manufacture Type acc. To Type code Serial Number Operating / Test pressure Operating temperature Inscription as requested by customer NOTE: Be aware of application restrictions given in Section 3.2.1.! 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 17: Flange System Ws With Sanitary Screw Connection Or Threaded Tank Socket
Serial number by customer type code Attention! When mounting the G 1½" screw connection you have to take care that the marking on the wrench faces will not be damaged (do not use pipe wrench!) www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 18: Assembly And Installation
When the purge connection is used, the operator shall ensure that no impermissible changes are made to the process conditions (e.g. temperature, pressure, etc.). 5.1.1.3. Flange system V96 with heating and purging devices Please refer to the information given in Section 5.1.1.1 and 5.1.1.2. 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 19: Flange System Ws (Wave Stick)
This applies in particular after dismantling of the conduit. The devices have to be switched zero potential before dismantling the conduit. The necessary standby time before opening the housing has to be considered before loosing the conduit adapters. www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 20: Power Cables
(see Section 3.1.4 and Type Test Certificate, Annex A.1) may be connected to the power terminals marked as being intrinsically safe. This requirement also applies when the device is not operated in the hazardous location! 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 21: Terminal Assignment
(Connection of a functional ground FE is not mandatory) (BM 700-Ex) Current output Power supply 24 V DC/AC Power: functional extra-low voltage with safety separation (PELV) 24V DC/AC (Connection of a functional ground FE is not mandatory) www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 22: Terminal Assignment - I/O Functions
+ current output HART BM 70Pi Verweisquelle konnte Fieldbus passive nicht gefunden werden. Fieldbus Foundation + current output passive Fieldbus passive PROFIBUS-PA + switching output passive Fieldbus passive Fieldbus Foundation + switching output passive 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... - Page 23 32 31 4-20mA max.250 RS 485 RS 485 input output _________________________________________________________________________________ Current output HART passive (intrinsically safe) current output 32 31 U min. = 8V 4-20mA Ex-i supply U max.= 30V unit www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en...
- Page 24 41 32 31 U min. = 8V 4-20mA connection Ex-i supply unit U max.= 30V _________________________________________________________________________________ PROFIBUS-PA /FF with switching output (intrinsically safe) switching output max. 110mA/30V 42 41 32 31 connection 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com...
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Page 25: Electrical Connection Bm 702-Ex / Bm 702 A-Ex
Terminal Compartment BM 702-Ex / BM 702 A-Ex: 4-20mA The polarity of the 4-20 mA current Connection is arbitrary loop cable gland Attention! It is not allowed to use the 10-pin service connector X6 in hazardous locations. www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 26: Start-Up
Inspection of the housing, cable entries and incoming cables for signs of corrosion and damage. Inspection of the tank connections for leakages. 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com... -
Page 27: Flange Systems
(22 minutes for BM 70..-Ex and 10 minutes for BM 700-Ex), to elapse first. signal converter O-ring Distance piece (for high-temperature version up to 250°C) upper Teflon plug BM70 connecting flange O-ring lower Teflon plug Antenna extension Antenna Assembly bolts for signal converter (M) www.krohne.com 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en... -
Page 28: Replacement Of Complete Device
Maintenance Maintenance work of a safety-relevant nature within the meaning of explosion protection may only be carried out by the manufacturer, his authorized representative or under the supervision of authorized inspectors. 07/2010 - 4000662402 MA BM70x-Ex-AD-R02-en www.krohne.com...
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