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INSTALLATION

3

15

BW25

www.krohne.com

10/2008 • 4000432301 MA BW25 R01 en

3.7 Grounding

1

Grounding on the flange

2

Grounding indicator M9

3

Grounding indicator M10

DANGER!

The grounding wire may not transfer any interference voltage.
Do not use this grounding wire to ground any other items of electrical equipment.

MA_BW25_R01_en_PRT.book Page 15 Thursday, October 30, 2008 3:49 PM

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Содержание BW25

Страница 1: ...Level meter BW25 BW25 BW25 BW25 Handbook Handbook Handbook Handbook MA_BW25_R01_en_PRT book Page 1 Thursday October 30 2008 3 49 PM...

Страница 2: ...ation conditions 12 3 4 Installation 13 3 5 Start up 13 3 6 Protection category 14 3 7 Grounding 15 4 Electrical connection indicator M9 16 4 1 Safety instructions 16 4 2 Limit switch 17 4 3 Electrica...

Страница 3: ...s 40 8 Service 43 8 1 Maintenance 43 8 2 Spare parts availability 43 8 3 Availability of services 43 8 4 Returning the device to the manufacturer 44 8 4 1 General information 44 8 4 2 Form for copying...

Страница 4: ...irective 97 23 EC ATEX directive 94 9 EC for instruments in Ex areas EMC Directive 2004 108 EC for instruments with electrical options As well as NAMUR Recommendations NE 21 and NE 43 KROHNE Messtechn...

Страница 5: ...by e mail may involve gaps in security It is not possible to protect such data completely against access by third parties We hereby expressly prohibit the use of the contact data published as part of...

Страница 6: ...damage to the device it is essential that you read the information in this document and observe applicable national standards safety requirements and accident prevention regulations If this document i...

Страница 7: ...without fail Even only partial disregarding such warnings can result in serious health damage damage to the device itself or to parts of the operator s plant CAUTION These warnings must be observed w...

Страница 8: ...elivery INFORMATION Please check the contents of the consignment for completeness and intactness 1 Device in ordered version 2 For indicator M10 bar magnet 3 For indicator M10 key 4 Manual 5 Certifica...

Страница 9: ...UR NAMUR safety oriented or 3 wire open collector 2 wire current output 4 20 mA HARTTM communication 2 BW25 M10 Pressure resistant enclosure Ex d 2 digital adjustable limit switches 2 wire open collec...

Страница 10: ...icle code INFORMATION Before installing the device make sure that the information on the nameplate corresponds to the ordering data Figure 2 1 Nameplates on the indicator 1 Device type 2 Manufacturer...

Страница 11: ...on with bypass chamber B with bypass chamber 3 Indicator part series M9 Indicator M9 standard indicator M9S Indicator with knock resistant sight glass M9R Indicator in stainless steel housing M9T Stai...

Страница 12: ...your local representative for advice CAUTION When installing the device the following points must be observed Before installation compare the serial number of the indicator nameplate with the serial...

Страница 13: ...Insert the displacer element and the spring suspension pin into the tank through the tank flange or into the preinstalled bypass chamber Tighten the flange connection 3 5 Start up 1 Locking ring 2 Qui...

Страница 14: ...ctive gaskets have to be replaced The electrical cables used must be undamaged and must comply with regulations The cables must be laid with a loop 3 upstream of the flowmeter to prevent water from ge...

Страница 15: ...Grounding on the flange 2 Grounding indicator M9 3 Grounding indicator M10 DANGER The grounding wire may not transfer any interference voltage Do not use this grounding wire to ground any other items...

Страница 16: ...e nameplate DANGER Observe national installation regulations WARNING Observe the regional occupational health and safety regulations without fail Only work on the device electrics if you are appropria...

Страница 17: ...ointer is indicated on the scale The connecting terminals have a pluggable design and can be removed in order to connect the lines The built in contact types are shown on the indicator Electrical conn...

Страница 18: ...he desired switching point After setting has been carried out Fix the contact pointers with the locking screw 3 Figure 4 2 Limit switch connection terminals 1 2 wire limit switch NAMUR 2 3 wire limit...

Страница 19: ...triggered The 3 wire limit switch does not have any wire break detection Figure 4 3 Switch contact definition 1 MIN contact 2 MAX contact 3 Pointer vane with switching vane Figure 4 4 Definition MinMi...

Страница 20: ...E ground loops may lead to impermissible voltage potentials which can compromise the function of the device itself or a connected device In such cases a protected extra low voltage PELV is recommended...

Страница 21: ...switched inactive I approx 4 mA per device Power supply The required supply voltage can be calculated using the formula below UB Rtot 22 mA 12 V where UB the minimum supply voltage and Rtot the total...

Страница 22: ...centre at www krohne com www krohne com www krohne com www krohne com The current level can be transmitted using the integral HARTTM communications Two limit values can be monitored INFORMATION For H...

Страница 23: ...he nameplate DANGER Observe national installation regulations WARNING Observe the regional occupational health and safety regulations without fail Only work on the device electrics if you are appropri...

Страница 24: ...a spring locking system 5 3 M10 Power supply analog output The electrical connection is polarized Terminal connection 1 Power supply analog output 2 Switching output B1 3 Switching output B2 4 Not us...

Страница 25: ...vices with HARTTM function can be operated in parallel for which the current outputs are switched to inactive I approx 4 mA per device Power supply The required supply voltage can be calculated using...

Страница 26: ...center at www krohne com The current level can be transmitted using the integral HARTTM communications Two limit values can be monitored INFORMATION The power supply has to be able to supply a minimu...

Страница 27: ...switching output with PNP technology Switching values Switching values Switching values Switching values CAUTION The switching outputs can only be operating if the power supply is applied to terminal...

Страница 28: ...ective elements there is a voltage drop Uv for the load to be operated Figure 5 4 Indicator M10 Breaking capacity of B1 and B2 1 Max switching current Y1 mA 2 Minimum load impedance Y2 ohm 3 Power sup...

Страница 29: ...rforms a self test and switches to measurement mode Here all of the parameters preset for the customer are analysed and checked for plausibility and the current measured value is displayed Operation I...

Страница 30: ...entation the keys are represented as symbols to describe the operating functions M10 operation keys CAUTION The switching point of the magnetic sensors is directly under the glass disc over the approp...

Страница 31: ...to menu mode Switch to one menu level lower Open menu item and activate change mode In change mode In change mode In change mode In change mode Move the input cursor one position to the right after t...

Страница 32: ...of faulty indications If the indications on the display or the responses to keypad commands are faulty you have to do a hardware reset Switch the power supply OFF and ON again If data have been chang...

Страница 33: ...for the specific customer Level Designation Explanation 1 4 TIME CONST Time constant damping value s 1 5 2 ERROR Error indicator Yes Error messages are deleted No Error messages are suppressed 2 1 4...

Страница 34: ...he device back to KROHNE for linearization TOO FEW ENTRIES The linearisation table does not have enough support points Error Carry out linearization at at least 5 points HART communication and lineari...

Страница 35: ...error detected during self test Error Restart the device If the error occurs again send the device back to KROHNE with an indication of the error RESTART OF DEVICE A device restart has taken place Inf...

Страница 36: ...analog output is fixed and does not reflect the measured value This is the case in Multidrop mode with analog output test calibration using the menu or HART AO SATURATED Analog output saturated Infor...

Страница 37: ...1 5 2 Reset error NO 3 1 Language DEUTSCH 3 2 Function B1 INACTIVE 3 3 Contact B1 NC contact 3 4 Function B2 INACTIVE 3 5 Contact B2 NC contact 3 9 Multidrop polling address 0 3 12 Alarm current OFF...

Страница 38: ...1 1 1 Switching value B1 1 1 2 Hysteresis B1 1 2 Output B2 1 2 1 Switching value B2 1 2 2 Hysteresis B2 1 3 Display 1 4 Time constant 1 5 Reset 1 5 1 Inactive 1 5 2 Reset error 2 Test Info 2 1 4 20 m...

Страница 39: ...Inactive 3 7 Inactive 3 8 Inactive 3 9 Multidrop 3 10 4mA Calibration 3 11 20mA Calibration 3 12 Alarm current 3 13 Upper range value and unit 3 13 1 Level 3 13 2 Inactive 3 14 Inactive 3 14 1 Inactiv...

Страница 40: ...s If the value 20 is input then the output works as follows it switches when the current value exceeds a value of 200 3 If the current level value is below the hysteresis value of 180 then the switchi...

Страница 41: ...The function assignment in menu 3 3 is not taken into consideration here CLOSED 2 4 Inactive 3 1 LANGUAGE ENGLISH DEUTSCH FRANCAIS ITALIANO ESPANOL CESKY POLSKI NEDERLANDS 3 2 FUNCTION B1 INACTIVE Out...

Страница 42: ...ce generates a fixed analog output of 20 00 mA If the measured value deviates from the displayed one then the measured value must be input When the menu is exited the corrected value is saved 3 12 ALA...

Страница 43: ...ten years after delivery of the last production run for that device Operational spare parts are defined as parts that are subject to faults in normal operation 8 3 Availability of services The manufac...

Страница 44: ...personnel manufacturer may only handle test and repair returned devices that have been in contact with products without risk to personnel and environment This means that the manufacturer can only serv...

Страница 45: ...h the following medium This medium is water hazardous toxic caustic flammable We checked that all cavities in the device are free from such substances We have flushed out and neutralized all cavities...

Страница 46: ...d thus the measuring stroke is transmitted to a display using a solenoid coupling from the measuring chamber If the device cannot be installed from above e g because there is an agitator in the tank t...

Страница 47: ...ion Titanium Spring Stainless steel 1 4571 Tmeas 100 C Spring option ATS 340 Tmeas 100 C Flange Stainless steel 1 4404 Pressure sleeve Stainless steel 1 4404 Process connections Max operating pressure...

Страница 48: ...60 C Storage temperature 40 60 C Indicator M9 with electrical installations Product or flange temperature 20 295 C Product or flange temperature HT version 40 400 C Ambient temperature 40 60 C Storage...

Страница 49: ...Normally open PNP Normally open Nominal voltage U0 8 VDC 8 VDC 8 VDC 10 30 VDC Pointer shaft not read 3 mA 3 mA 1 mA 0 3 VDC Pointer shaft read 1 mA 1 mA 3 mA Ub 3 VDC Continuous current max 100 mA N...

Страница 50: ...21 00 Maximum 131 25 25 Multidrop operation 4 5 Lift off voltage 12 VDC Cable gland without Standard Terminal connection 2 5mm2 Power supply 24 VDC 30 Min power supply for HART TM 18 VDC Measuring si...

Страница 51: ...M10 binary output Two binary outputs Electrically separated Operating mode Switching output NAMUR or Open collector Configurable as switching contact or pulse output Open closed or max 10 P s NAMUR sw...

Страница 52: ...imensions Dimensions with M9 indicator Dimensions with M9 indicator I a b c d e f g Dimensions mm 181 110 138 168 min 340 1 20 2 1 Length of the displacer rod measuring area 2 According to the operati...

Страница 53: ...en Dimensions with M9 indicator II Dimensions with M10 indicator Dimensions with M9 indicator II a b c Dimensions mm 106 303 185 Dimensions with M10 indicator a b c d e f Dimensions mm 71 64 37 124 30...

Страница 54: ...n Dimensions of bypass chamber Dimensions of bypass chamber a b c d e f g Dimensions mm 1 1 340 72 115 2 120 1 Connection according to DIN EN 1092 1 or ASME B16 5 2 Length of the displacer rod measuri...

Страница 55: ...TECHNICAL DATA 9 55 BW25 www krohne com 10 2008 4000432301 MA BW25 R01 en MA_BW25_R01_en_PRT book Page 55 Thursday October 30 2008 3 49 PM...

Страница 56: ...e ru India India India India Krohne Marshall Ltd A 34 35 M I D C Industrial Area H Block Pimpri Poona 411018 Phone 91 0 202 744 2020 Fax 91 0 202 744 2020 pcu vsnl net Iran Iran Iran Iran KROHNE Liais...

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