KROHNE H250 M40 Series Handbook Download Page 38

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ELECTRICAL CONNECTIONS

H250 M40

www.krohne.com

03/2020 - 4000640706 - MA H250-M40 R06 en

4.3 Grounding connections

4.4 Ingress protection

The measuring device meets all requirements of ingress protection IP66/68.

Therefore it is essential to observe the following points.

•

Use only original gaskets. They must be clean and free of any damage. Defective gaskets must

be replaced.

•

The electrical cables must be undamaged and must comply with regulations.

•

The cables must be laid with a loop

upstream of the measuring device to prevent water

from getting into the housing.

•

The cable feedthroughs

must be tightened.

•

Close the unused cable feedthroughs using blanking plugs

Figure 4-15: Grounding connections

Grounding connection on the indicator

Outer grounding connection

DANGER!

The grounding wire may not transfer any interference voltage.
Do not use this grounding cable to ground any other electrical devices.

DANGER!

After all servicing and maintenance work on the measuring device, the specified protection class
must be ensured again.

Figure 4-16: Laying the cable

Use blanking plugs if no cable is routed through

Tighten cable feedthrough firmly

Lay the cable in a loop

Summary of Contents for H250 M40 Series

Page 1: ...Variable area flowmeter Electronic revision ESK up to ER 3 1 x H250 M40 H250 M40 H250 M40 H250 M40 Handbook Handbook Handbook Handbook KROHNE 03 2020 4000640706 MA H250 M40 R06 en ...

Page 2: ...n or any part thereof without the prior written authorisation of KROHNE Messtechnik GmbH Subject to change without notice 2 www krohne com 03 2020 4000640706 MA H250 M40 R06 en Copyright 2020 by KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany IMPRINT ...

Page 3: ...ce version 14 2 2 1 Indicator versions 15 2 2 2 Float damping 17 2 2 3 Pointer damping 17 2 3 Nameplate 18 2 4 Description code 19 3 Installation 20 3 1 General installation notes 20 3 2 Storage 20 3 3 Transport 20 3 4 Installation conditions 21 3 4 1 Tightening torques 23 3 4 2 Magnetic filters 23 3 4 3 Heat insulation 24 4 Electrical connections 25 4 1 Safety instructions 25 4 2 Electrical conne...

Page 4: ...tings 48 6 6 2 Menu structure 50 6 6 3 Menu description 53 7 Service 62 7 1 Maintenance 62 7 2 Replacement and retrofitting 62 7 2 1 Replacing floats 62 7 2 2 Retrofitting of the float damping 63 7 2 3 Retrofitting of the limit switch 64 7 2 4 Replacement Retrofitting ESK4A 65 7 2 5 Replacement Retrofitting add on module ESK4 T PA FF 66 7 3 Spare parts availability 66 7 3 1 List of spare parts 66 ...

Page 5: ...ices with electrical components 80 8 2 3 Pressure tightness vacuum H250 C 81 8 2 4 Process connections 82 8 2 5 Electrical connections inputs and outputs 83 8 2 6 Ex approvals 86 8 3 Dimensions and weight 87 8 4 Measuring ranges 88 8 4 1 H250 HC Hastelloy H250 RR stainless steel 89 8 4 2 H250 C Ceramic PTFE 91 8 4 3 H250 RR Low flow 93 8 4 4 H250H Horizontal installation position 94 8 4 5 H250U Ve...

Page 6: ... 2 1 x Functional add on to ER 2 0 x can be combined with indicator version ESK4 PA Profibus PA Firmware version PA module from 1 0 0 can be combined with indicator version ESK4 IO LCD binary inputs outputs Firmware version IO module from 1 1 0 ER 2 2 x Functional add on to ER 2 1 x Support of failure signal low according to NE 43 for the ESK4 current output module ER 3 0 x Functional add on Updat...

Page 7: ...ting pressure while taking into account the resulting change in density and thus change in scale CAUTION Responsibility for the use of the measuring devices with regard to suitability intended use and corrosion resistance of the used materials against the measured fluid lies solely with the operator INFORMATION This device is a Group 1 Class A device as specified within CISPR11 2009 It is intended...

Page 8: ...rective has been carried out for the devices described Conformity is certified by applying the CE mark The number of the notified body is also stated The PED key describes the rating of the devices The PED key identification can be found on the nameplate of the device for details refer to Nameplate on page 18 CE marking Example PED G1 III H G Gases and vapours 1 Fluid group 1 III Category III H Co...

Page 9: ...tion and their pressure resistance is calculated for the declared maximum pressure and temperature no calculation for cyclical change Responsibility for the use of the measuring devices with regard to corrosion resistance of the used materials against the measured fluid lies solely with the operator Avoid abrasion Avoid pulsation and cavitation Protect devices from vibration and high frequency osc...

Page 10: ... the Internet e g when communicating 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 our duty to publish an imprint for the purpose of sending us any advertising or informational materials that we have not expressly requested 1 5 2 Disclaimer The m...

Page 11: ... prevent any injury to the user or 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 is not in your native language and if you have any problems understanding the text we advise you to contact your local office for assistance The manufacturer can not ...

Page 12: ...ngs must be observed without fail Even partial disregard of this warning can lead to serious health problems and even death There is also the risk of seriously damaging the device or parts of the operator s plant WARNING Disregarding this safety warning even if only in part poses the risk of serious health problems There is also the risk of damaging the device or parts of the operator s plant CAUT...

Page 13: ...ON Do a check of the packing list to make sure that you have all the elements given in the order INFORMATION Look at the device nameplate to ensure that the device is delivered according to your order Check for the correct supply voltage printed on the nameplate Figure 2 1 Scope of delivery 1 Measuring device in ordered version 2 For the ESK4 T version bar magnet 3 Documentation 4 Certificates cal...

Page 14: ...lue and or flow counter 2 configurable binary outputs limit value or pulse output 1 binary input Start Stop Reset flow counter 2 wire current output 4 20 mA HART communication Intrinsically safe Ex i or in explosion proof enclosure Ex d Optional versions H250 with indicator M40 as high temperature version HT H250H for use in horizontal pipelines H250U for use in vertical fall pipes H250F with hygi...

Page 15: ...es Both versions can be combined with one another Figure 2 3 Basic version 1 Pointer module 2 Bolts for ESK4A attachment 3 Base plate 4 Module profile 5 Pressure piece for ESK4A attachment 6 Housing cover locking device 7 Ground terminal external Figure 2 4 Versions K1 K2 and ESK4A 1 Indicator with K2 contact module 2 Indicator with ESK4A current output 4 20 mA ...

Page 16: ...Fieldbus or H250 M40 Profibus PA Figure 2 5 Version ESK4 T 1 ESK4A connection 2 Module cover 3 Display 4 Display module ESK4 IO 5 Operating keys 6 Connection binary outputs and reset input 7 Module connection cable Figure 2 6 Version Fieldbus ESK4 FF ESK4 PA 1 Basic module with electronic magnet sensors ESK4A 2 Connection bus module 3 DIP switch for bus settings ...

Page 17: ...c system contains indicator damping An additional eddy current brake is advantageous in the event of fluctuating or pulsing flows The magnets on the eddy current brake surround the pointer vane without touching it damping its movement The result is a much steadier pointer position without distorting the measured value The eddy current brake can be retrofitted during operation without recalibration...

Page 18: ...de INFORMATION Check on the device nameplates that the device is supplied according to your order Figure 2 8 Example of a nameplate 1 Device type 2 Manufacturer 3 Identification number of the notified body 4 Rating data temperature pressure rating 5 Data according to the pressure equipment directive 6 Marking according to the notified body 7 Electrical connection data 8 Note to observe the documen...

Page 19: ...et 4 Type series of indicators Type series of indicators Type series of indicators Type series of indicators M40 indicator M40 M40R indicator in stainless steel housing 5 High temperature version High temperature version High temperature version High temperature version HT version with HT extension 6 Electrical signal output Electrical signal output Electrical signal output Electrical signal outpu...

Page 20: ...6 F 3 3 Transport If possible transport the device to the installation point in the original packaging INFORMATION Inspect the packaging carefully for damages or signs of rough handling Report damage to the carrier and to the local office of the manufacturer INFORMATION Do a check of the packing list to make sure that you have all the elements given in the order INFORMATION Look at the device name...

Page 21: ...connection or the operating pressure The inner diameter of the flange deviates from the standard dimensions Flange seal standard DIN 2690 or ASME B16 21 can be applied Align the gaskets Tighten the nuts with the tightening torques of the appropriate pressure rating For devices with PTFE liner or ceramic liner and PTFE raised faces refer to chapter Tightening torques Control devices are to be posit...

Page 22: ...for the H250H with horizontal flow direction In order to comply with thermal parameters and measuring accuracy H250H flowmeters for horizontal installation are to be installed in the pipeline so that the display is located on the side of the measuring tube The maximum product and ambient temperatures indicated as well as the measuring accuracy are based on lateral installation of the indicator Fig...

Page 23: ... efficiency at low pressure loss All of the magnets are coated individually with PTFE to protect against corrosion Material 1 4404 316L Nominal size according to Stud bolts Max torque EN 1092 1 ASME B16 5 EN ASME EN 1092 1 ASME 150 lb DN PN Inch lb 150 lb 300 lb Nm ft lbf Nm ft lbf 15 40 1 2 150 300 4x M12 4x 1 2 4x 1 2 9 8 7 1 5 2 3 8 25 40 1 150 300 4x M12 4x 1 2 4x 5 8 21 15 10 7 2 50 40 2 150 ...

Page 24: ...heat insulated The heat insulation 3 may only reach as far as the housing fastening 4 Figure 3 4 Heat insulation 1 Standard indicator M40 2 Indicator with HT extension CAUTION The heat insulation 1 may only reach to the rear of the housing 2 The area around the cable entries 3 must be freely accessible Figure 3 5 Heat insulation cross section ...

Page 25: ...electrical installations DANGER For devices used in hazardous areas additional safety notes apply please refer to the Ex documentation WARNING Observe without fail the local occupational health and safety regulations Any work done on the electrical components of the measuring device may only be carried out by properly trained specialists INFORMATION Look at the device nameplate to ensure that the ...

Page 26: ...r The switching points are set using the contact pointers The position of the contact pointers is indicated on the scale The connection terminals have a pluggable design and can be removed to connect the cables The built in limit switch types are shown on the nameplate of the indicator Figure 4 1 Design of limit switch module 1 MIN contact 2 MAX contact 3 Locking screw 4 Contact pointers 5 Connect...

Page 27: ...locking screw 3 slightly Slide in the scale up to the locking point Set contact pointers 1 and 2 to the desired switching point Figure 4 2 Connection terminals for limit switches 1 Limit switch 2 wire NAMUR 2 Limit switch 3 wire 3 Limit switch Reed SPST 4 Terminal connection of Min contact 5 Terminal connection of Max contact 6 3 wire load 7 NAMUR isolated switching amplifier 8 3 wire power supply...

Page 28: ... vane is outside of the proximity switch a wire break in a NAMUR contact also triggers the alarm The 3 wire limit switch does not have any wire break detection CAUTION If the maximum torque 0 2 Nm is exceeded the locking screw can be torn off during tightening Figure 4 4 Definition of switch contact 1 MIN contact 2 MAX contact 3 Pointer vane with switching vane Figure 4 5 Definition MIN MIN MAX MA...

Page 29: ...GND with PE mass loops may lead to non permitted voltage potentials which could negatively affect the function of the converter itself or that of a device connected to it In such cases a protected extra low voltage PELV is recommended Figure 4 6 ESK4A connection 1 Current output of ESK4A 2 Power supply 14 32 VDC intrinsicallly safe max 30 VDC 3 Measuring signal 4 20 mA 4 External load HART communi...

Page 30: ...data transmission 4 20 mA is not impaired in any way Exception for multidrop operation In multidrop operation a maximum of 15 devices with HART function can be operated in parallel whereby their current outputs are switched to inactive I approx 4 mA per device INFORMATION The supply voltage has to be between 14 VDC and 32 VDC This is based on the total resistance of the measuring loop To calculate...

Page 31: ...ed a failure signal high is activated factory setting current 21 mA optional configuration as failure signal low 3 6 mA via the analogue output The failure signal is not activated for information and warnings In addition more detailed information can be requested via HART CMD 48 Diagnostic functions Monitoring Plausibility of FRAM data Plausibility of ROM data Working range of internal reference v...

Page 32: ...ignal transmission select one of the following connection types for binary outputs B1 and B2 NAMUR DC interface acc to EN 60947 5 6 Transistor output passive Open Collector Figure 4 8 Position of the connection terminals 1 Binary output 1 2 ESK4A power supply current output 3 Binary output 2 4 Binary input INFORMATION The binary inputs outputs can only be operated if the power supply is applied to...

Page 33: ...inputs of process control systems and controls DIN IEC 946 Figure 4 9 Connection switching output 1 NAMUR terminal connection 2 Isolated switching amplifier 3 OC switch output terminal connection 4 Power supply Uext 5 Load RL NC contact NO contact Switching value reached 1 mA 3 mA Switching value not reached 3 mA 1 mA Table 4 4 Value range for NAMUR Signal voltages UL V UH V lower limit upper limi...

Page 34: ...INFORMATION The binary outputs can also be operated as pulse outputs When using the binary outputs as a pulse output two separate signal circuits are required Each signal circuit requires its own power supply The total resistance 4 must be adapted so that the total current Itot does not exceed 100 mA Figure 4 10 Electrical connection of pulse output 1 Terminal for power supply current output 2 Ter...

Page 35: ... or ACTIVE LO If the input is set as ACTIVE LO an interruption causes the counter to be reset For further information on configuration of each function refer to ESK4 T menu on page 48 The binary input has an internal resistance Ri of 20 kΩ Binary input B3 Terminal no 7 8 Connection Table 4 7 Value range for NAMUR Figure 4 12 Binary input 1 Function active HI 2 Function active LO Input voltage UL V...

Page 36: ...PA fieldbus communication ESK4 FF ESK4 PA 2 wire bus supplied Polarity protected Bus voltage 9 32 VDC Nominal current 16 mA Figure 4 13 ESK4 FF ESK4 PA fieldbus communication 1 FF HSE Bus Profibus DP 2 Linking device bus coupler 3 FF H1 Bus Profibus PA 2 wire with shielding 4 H250 M40 ESK4 FF H250 M40 ESK4 PA ...

Page 37: ... MIN 1 1 2 2 NAMUR MIN 2 Reed MIN 2 3 3 3 NAMUR MAX 3 Reed MAX 4 4 4 3 NAMUR MAX 3 Reed MAX 5 6 5 4 4 20mA 11 6 4 4 20mA 12 7 8 Table 4 9 Terminal assignment Harting plug to terminal number 1 Pin number HAN 7D ESK4 T Terminal number 1 5 Binary output B1 open coll 1 2 5 Binary output B1 open coll 3 3 7 Binary output B2 open coll 4 4 7 Binary output B2 open coll 6 5 6 4 20mA 11 6 6 4 20mA 12 7 8 Tab...

Page 38: ...pstream of the measuring device to prevent water from getting into the housing The cable feedthroughs 2 must be tightened Close the unused cable feedthroughs using blanking plugs 1 Figure 4 15 Grounding connections 1 Grounding connection on the indicator 2 Outer grounding connection DANGER The grounding wire may not transfer any interference voltage Do not use this grounding cable to ground any ot...

Page 39: ...ting pressure and the product temperature of the system with the specifications on the nameplate PS and TS These specifications may not be exceeded Make sure materials are compatible Slowly open the shut off valve When measuring liquids ensure that the pipelines are carefully evacuated When measuring gases increase pressure slowly Avoid float impact e g caused by solenoid valves as this is likely ...

Page 40: ...nt output from constant 4 mA to constant 20 mA as often as you like by briefly pressing it less than 6 seconds to check the function of the measuring circuit Exit loop check mode by holding down the microswitch longer than 6 seconds The current output jumps back to measuring mode 2 Figure 6 1 Position of the microswitch CAUTION When activating the loop check mode ensure that no alarms are unintent...

Page 41: ...represented as symbols to describe the operating functions CAUTION The switching point of the magnetic sensors is directly at the height of the corresponding circle see figure Only touch the circle vertically and from the front using the bar magnet Touching it from the side may cause an error in the measurement as the float position is recorded by the magnetic field sensors Figure 6 3 Display and ...

Page 42: ...level lower Open menu item and activate change mode Confirm query whether data should be accepted In change mode In change mode In change mode In change mode Move the input cursor one position to the right After the last digit the input cursor jumps back to the beginning Change between the menu items within a menu level In measuring mode In measuring mode In measuring mode In measuring mode Switch...

Page 43: ...te is carried out and the display returns to measuring mode Save No Changes are discarded and the display returns to measuring mode Table 6 4 Change the settings in the menu CAUTION Each time parameters or settings are changed the measuring device carries out an internal plausibility check If inplausible entries were made a warning message is shown If this warning is confirmed with the key the dis...

Page 44: ...d std conditions 15 C 1 013 bara acc to ISO 13443 e g Sft3 h Table 6 6 Volume definition Measured variables Units Operating volume flow m3 s m3 min m3 h m3 d L s L min L h ft3 s ft3 min ft3 h ft3 d gal s gal min gal h gal d bbl s bbl min bbl h bbl d ImpGal s ImpGal min ImpGal h ImpGal d Standard norm volume flow Nm3 s Nm3 min Nm3 h Nm3 d NL s NL min NL h Standard std volume flow Sm3 s Sm3 min Sm3 ...

Page 45: ...inal calibration values must be known or send the device back to the manufacturer for linearization NEW LINEARI TABLE BAD Faulty or missing data in the linearization table measuring error S 1 LINEARIZATIO UNDER CONFIG The device is in linearization mode measuring error S Complete the linearization and activate it HART communication and linearization software are required or send the device back to...

Page 46: ... is not known Controlled reset of the counter using menu item 1 6 1 or using HART tools process control system FRAM WRITE FAULT Internal communication error F Check whether the display is plugged in correctly and restart the device If the error occurs again send the device back to the manufacturer with an indication of the error ROM FLASH ERROR Memory error detected during self test F Restart devi...

Page 47: ... maintenance cleaning of device check application INT MAG F Float is missing or upside down M Check float if installed correctly EXT MAG F External magnetic fields are interfering the measurement M Avoid magnetic DC fields at installation position PUL FLOW Pulsating flow or bumping float S Check application NE107 AUTO CAL At least one auto calibration of NE107 application diagnostic is active The ...

Page 48: ...OPEN 3 4 FUNCTION B2 INACTIVE 3 5 CONTACT B2 NORM OPEN 3 6 FUNCTION B3 INACTIVE 3 7 MULTIDROP POLLING ADD 00 3 8 4mA CALIBR 4 000mA 3 9 20mA CALIBR 20 000mA 3 10 ALARM CURR ALARM HIGH 3 11 F S UNIT Application specific 3 11 2 COUNTER Application specific 3 12 USER DEFINED User defined unit factor 3 13 L FL CUTOFF 4 ON 6 OFF 3 14 DESCRIPTOR Free text 3 15 ENTRY CODE OFF 3 16 DEFAULT VAL NO 5 1 DIS ...

Page 49: ...ME 4 0 s 5 5 2 MIN MAG 26 0 5 5 3 MAX MAG 74 0 5 6 INT MAG F 5 6 1 HOLD TIME 4 0 s 5 6 2 MIN MAG 70 5 5 6 3 MAX MAG 90 0 5 7 PUL FLOW 5 7 1 HOLD TIME 4 0 s 5 7 2 PERIOD 0 2 s 5 7 3 THRESHOLD 30 0 Table 6 10 Factory settings Function Setting INFORMATION The measuring device has been preset at the factory in accordance with the customer order Therefore subsequent configuration via the menu is only n...

Page 50: ...S D VALUE COUNTER MV COUNTER MV COUNTER PERCENT 1 4 2 ROTATION 1 5 TIME CONST 1 6 RESET 1 6 1 COUNTER 1 6 2 ERROR 1 6 3 WRITE INFO IO 2 TEST INFO 2 1 4 20mA OUTP 2 1 1 NORMAL OP 2 1 2 4 0mA 2 1 3 5 6mA 2 1 4 7 2mA 2 1 5 8 8mA 2 1 6 10 4mA 2 1 7 12 0mA 2 1 8 13 6mA 2 1 9 15 2mA 2 1 10 16 8mA 2 1 11 18 4mA 2 1 12 20 0mA 2 1 13 21 6mA 2 2 ALARM CURR ALARM HIGH ALARM LOW 2 3 OUTPUT B1 2 3 1 NORMAL OP ...

Page 51: ...TACT B2 NORM OPEN NORM CLOSED 3 6 FUNCTION B3 INACTIVE ACTIVE HI ACTIVE LO STARTH STOPL STARTL STOPH 3 7 MULTIDROP POLLING ADD 3 8 4mA CALIBR 4 000mA 3 9 20mA CALIBR 20 000mA 3 10 ALARM CURR OFF ALARM HIGH ALARM LOW 3 11 F S UNIT 3 11 1 MEAS D VALUE 3 11 2 COUNTER 3 12 USER DEFINED 3 12 1 MEAS D VALUE 3 12 2 COUNTER 3 13 L FL CUTOFF 3 13 1 CONTROL ON CONTROL OFF 3 13 2 ON VALUE 3 13 3 OFF VALUE 3 ...

Page 52: ...L 5 3 2 MAG FIELD 5 3 3 PUL FLOW 5 4 BLOCKED FL 5 4 1 PERIOD 5 4 2 MIN FLOW 5 4 3 THRESHOLD 5 5 EXT MAG F 5 5 1 HOLD TIME 5 5 2 MIN MAG 5 5 3 MAX MAG 5 6 INT MAG F 5 6 1 HOLD TIME 5 6 2 MIN MAG 5 6 3 MAX MAG 5 7 PUL FLOW 5 7 1 HOLD TIME 5 7 2 PERIOD 5 7 3 THRESHOLD Table 6 11 Menu structure Main menu Submenu 1 Submenu 2 ...

Page 53: ...r mass units If the the current counter value exceeds this pre determined switching point output B1 changes its binary state 3 There is no hysteresis setting for the switching point of the counter value PULSE WIDTH Pulse weight pulse unit The weight is only displayed here A configuration takes place in Fct 1 3 1 PULSE WIDTH 1 3 2 PULSE UNIT and 3 11 2 COUNTER 1 1 2 HYST B1 Hysteresis for the switc...

Page 54: ...IT and 3 11 2 COUNTER 1 2 2 HYST B2 Refer to HYST B1 1 3 PULSE OUTP 1 3 PULSE OUTP 1 3 PULSE OUTP 1 3 PULSE OUTP 1 3 1 PULSE WIDTH 50ms Ti 50 ms fmax 10 Hz max pulses h 36000 100ms Ti 100 ms fmax 5 Hz max pulses h 18000 200ms Ti 200 ms fmax 2 5 Hz max pulses h 9000 500ms Ti 500 ms fmax 1 Hz max pulses h 3600 1 3 2 PULSE UNIT 0 001 1000 Pulse per volume or mass unit of counter setting in Fct 3 11 2...

Page 55: ...ue of the current loop and indicated flow value follow the current process by the value set here in seconds with a time delay Note Note Note Note If the current flow is polled via HART communication the transferred measured value is also played back with a delay 1 6 RESET 1 6 RESET 1 6 RESET 1 6 RESET Local resetting of totalizer and acknowledgement of warnings There is always a safety prompt YES ...

Page 56: ...CURR 3 6 21 mA Testing the alarm current HIGH LOW according to the settings in Fct 3 10 2 3 OUTPUT B1 2 3 OUTPUT B1 2 3 OUTPUT B1 2 3 OUTPUT B1 Testing the binary switching output B1 by changing its binary status Attention Attention Attention Attention During the test the binary status does not correspond to the current process 2 3 1 NORMAL OP The binary status of the switching output corresponds ...

Page 57: ...1 1 ENGLISH The menu texts are displayed in the selected language 3 1 2 DEUTSCH 3 1 3 FRANCAIS 3 1 4 ITALIANO 3 1 5 ESPANOL 3 1 6 CESKY 3 1 7 POLSKI 3 1 8 NEDERLANDS 3 1 9 DANSK 3 2 FUNCTION B1 3 2 FUNCTION B1 3 2 FUNCTION B1 3 2 FUNCTION B1 INACTIVE The binary switching output B1 has no function SWITCH POINT The binary switching point B1 acts as a limit switch depending on the current flow value ...

Page 58: ...de is disabled Attention Attention Attention Attention When the HART multi drop mode Address 1 15 is activated the current loop is inactive fixed current value of 4 5mA and no longer follows the current process 3 8 4mA CALIBR 3 8 4mA CALIBR 3 8 4mA CALIBR 3 8 4mA CALIBR D A calibration for lower range value 4mA Note Note Note Note This function is not available in HART multi drop mode Attention At...

Page 59: ...eater than the switch on value The current output corresponds to this If the flow rate falls the current output follows until the switch on value 1 If the flow value continues to fall the current output is switched to 4 00mA 3 Note Note Note Note The switch on value to be set must be smaller than the previously selected switch off value 3 13 3 OFF VALUE Switch off value 2 Value range 2 20 of full ...

Page 60: ...calibration and previous parameters are used 5 2 1 BLOCKED FL Auto calibration to determine the threshold parameter for blocked float OFF Not active ON Active The auto calibration is executed until switched off again During auto calibration the flow should be as constant as possible 5 2 2 EXT MAG F Auto calibration to determine the magnetic field limits for external field detection During auto cal...

Page 61: ...RESHOLD 0 025 100 Tolerance threshold in of full scale If the change in flow during the monitoring period is smaller than the threshold a blocked float status is set 5 5 EXT MAG F 5 5 EXT MAG F 5 5 EXT MAG F 5 5 EXT MAG F Parameter setting for detection of external magnetic interference 5 5 1 HOLD TIME 0 1 25 5 s Persistent and hold time of the status signal in seconds 5 5 2 MIN MAG 0 0 100 0 Mini...

Page 62: ...ice from the pipeline Take the upper span ring out of the measuring unit Take the upper float stop and float out of the measuring unit Insert the new float into the centre hole of the lower float stop and push into the measuring unit along with the upper float stop While doing this the float s upper guide rod must be guided through the middle hole of the float stop Insert the span ring into the me...

Page 63: ...ing ring 3 into the lower slot of the float s guide rod Slide ceramic sleeve 4 on to the float s guide rod and attach it to the top slot using the retaining ring 3 Insert float into the lower float guide in the measuring unit Retrofit the supplied damping cylinder with the integrated float stop 2 into the measuring unit Insert upper span ring 1 Figure 7 1 Design of the float damping 1 Span ring 2 ...

Page 64: ...t pointer Insert the contact module into slot 3 of the bracket until the semi circle 1 on the contact board surrounds the pointer cylinder For the setting of the limits refer to Connection of the limit switches K1 K2 on page 26 The contact module connecting terminals feature a pluggable design and can be removed in order to connect the cables Figure 7 2 Retrofitting of the limit switch WARNING Do ...

Page 65: ... variable area calculation program and with a HART modem However each measuring unit is subject to its own physical limits which the variable area calculation program correctly calculates and may thus reject the desired change If a change is performed using the program the new data is also transmitted to the ESK4A Device identification Device address Serial number Measuring point identifier Digita...

Page 66: ...ch are subject to wear and tear under normal operating conditions 7 3 1 List of spare parts Spare part Order number DN15 DN15 DN15 DN15 Float CIV 15 1 4404 X251041000 Float DIV 15 1 4404 X251042000 Float TIV 15 1 4404 X251043000 Float DIVT 15 1 4404 X251044000 Float TIV 15 Aluminium X251043100 Float TIV 15 Titanium X251043200 Set float stop standard 1 float stop 1 span ring X251050100 Set float st...

Page 67: ...54042000 Float TIV 85 1 4404 X254043000 Float DIVT 85 1 4404 X254044000 Set float stop standard 1 float stop 1 span ring X254050100 Set float stop gas damping ZrO2 X254050200 Set float stop gas damping PEEK X254050300 Damping bush 18x14 ZrO2 incl 2 retaining rings X254053100 Damping bush 18x14 PEEK incl 2 retaining rings X254053200 DN100 DN100 DN100 DN100 Float CIV 105 1 4404 X255041000 Float DIV ...

Page 68: ...NAMUR 2 wire limit module NAMUR 2 wire limit module NAMUR 2 wire limit module NAMUR 2 wire limit module Contact module K1 min I7S23 5 N X251135100 Contact module K1 max I7S23 5 N X251135200 Contact module K2 min max I7S23 5 N X251135300 Contact module K1 min SC3 5 N0 X251133100 Contact module K1 max SC3 5 N0 X251133200 Contact module K2 min max SC3 5 N0 X251133300 Contact module K2 min min min SJ3...

Page 69: ...for ESK4 FF or ESK4 PA X251121800 Replacement connectors 1 2 3 4 5 6 7 8 for ESK4 T X251121900 Replacement cable gland Replacement cable gland Replacement cable gland Replacement cable gland Single cable gland M20x1 5 black plastic for non Ex Ex i X251150300 Single cable gland M20x1 5 blue plastic for non Ex Ex i X251150100 Single cable gland M20x1 5 brass for non Ex Ex i Ex nA X251151000 Single c...

Page 70: ...he health and safety of the personnel the 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 service this device if it is accompanied by the following certificate see next section confirming that the device is safe to handle WARNING If the device has been operated ...

Page 71: ...ce when it is returned Date Signature Stamp LEGAL NOTICE Disposal must be carried out in accordance with legislation applicable in your country Separate collection of WEEE Waste Electrical and Electronic Equipment in the European Union Separate collection of WEEE Waste Electrical and Electronic Equipment in the European Union Separate collection of WEEE Waste Electrical and Electronic Equipment in...

Page 72: ...onents The metallic measuring unit can be sent to metal recycling after the indicator housing has been removed Depending on the version the measuring unit may weigh between 2 50 kg 4 4 110 2 lb INFORMATION Wear personal protective equipment Make sure to use a stable workstation bench to disassemble Figure 7 4 Description of the device components 1 Measuring unit 2 Indicator housing CAUTION Check a...

Page 73: ...module 2 Bolts for ESK4A attachment 3 Base plate 4 Module profile 5 Pressure piece for ESK4A attachment 6 Housing cover locking device 7 Ground terminal external Approx information Weight Remarks Glass panel 135 cm 20 9 in Coated aluminium cover base plate 1 2 1 4 kg 2 6 3 1 lb For M40 indicator type see nameplate Stainless steel cover base plate 3 2 3 7 kg 7 1 8 2 lb For M40R indicator type see n...

Page 74: ...Versions K1 K2 and ESK4A 1 Indicator with K2 contact module 2 Indicator with ESK4A current output 4 20 mA Figure 7 7 Version ESK4 T 1 ESK4A connection 2 Module cover 3 Display 4 Display module ESK4 IO 5 Operating keys 6 Connection binary outputs and reset input 7 Module connection cable ...

Page 75: ...4 PA Contact module K1 K2 PCB 68 cm 10 5 in 2 x 62 cm 2 x 9 6 in 62 cm 9 6 in 75 cm 11 6 in Polyamide housing 63 g 0 14 lb 42 g 0 09 lb 42 g 0 09 lb Potting silicone 135 g 0 30 lb 100 g 0 22 lb 100 g 0 22 lb 5 g 0 01 lb Batteries Electrolytic capacitors LC display 16 cm 2 5 in Table 7 2 Main components of the optional electronic modules INFORMATION Silicone is used when potting the PCBs in the pol...

Page 76: ... magnetic coupling and displayed on a scale 2 For a built in signal converter ESK4A the flow dependent height of the float in the measuring unit is detected by the S1 and S2 magnetic field sensors and electronically processed The flowmeter operates in accordance with a modified float measuring principle The guided float adjusts itself so that the flow force acting on it is in equilibrium with the ...

Page 77: ...rimary measured value Float position Secondary measured value Operating volume flow standard volume flow or mass flow Measuring accuracy H250 RR HC F 1 5 of full scale 1 6 of measured value according to VDI VDE 3513 2 qG 50 H250 C ceramic PTFE H250H H250U H250 100 1 H250 Low flow 2 0 of full scale 2 5 of measured value according to VDI VDE 3513 2 qG 50 Precision repeatability Precision repeatabili...

Page 78: ... 2 1 Operating pressure 0 3 barg 4 4 psig DN50 100 2 4 Operating pressure 0 2 barg 2 9 psig Installation conditions Inlet section 5 x DN Outlet section 3 x DN Note Straight inlet and outlet sections are not required for accuracy reasons but may reduce instable flow indication caused by fluctuating flow profiles and may increase lifetime because of reduced mechanical wear It is recommended to consi...

Page 79: ...e 82 Electrical connections inputs and outputs Cable glands Cable glands Cable glands Cable glands Standard M20x1 5 PA with cable diameter 8 13 mm 0 315 0 512 Optional M20x1 5 Nickel plated brass or stainless steel with cable diameter 10 14 mm 0 394 0 552 For detailed information refer to Electrical connections inputs and outputs on page 83 Table 8 2 Technical data DANGER For devices to be used in...

Page 80: ... sun to an electronics housing surface temperature above the maximum permissible ambient temperature A sunshade is available as option Maximum product temperature in C Tamb 40 C Tamb 60 C 1 EN ASME Version with Standard HT Standard HT DN15 DN25 1 2 1 ESK4A ESK4 FF ESK4 PA 200 300 180 300 ESK4 T 200 300 140 290 Limit switch NAMUR 200 300 200 300 Limit switch 3 wire 200 300 130 295 DN50 2 ESK4A ESK4...

Page 81: ...2 Limit switch 3 wire 392 572 248 383 DN80 DN100 3 4 ESK4A ESK4 FF ESK4 PA 392 572 302 482 ESK4 T 392 572 266 518 Limit switch NAMUR 392 572 392 572 Limit switch 3 wire 374 572 230 320 Table 8 6 Maximum product temperature in F 1 If there are no heat insulation measures a heat resistant cable is necessary continuous operating temperature of the cable to be used 212 F Max process temperature 70 C 1...

Page 82: ...0 barg 735 psig ASME B1 20 1 1 2 2 NPT Female thread H250 RR HC with insert FPM gasket and union nut ISO 228 G1 2 2 50 barg 735 psig ASME B1 20 1 1 2 2 NPT Thread connection aseptic H250 F DIN 11864 1 DN15 50 PN40 DN80 100 PN16 Flange aseptic H250 F DIN 11864 2 DN15 50 PN40 DN80 DN100 PN16 Measuring device H250 RR HC with heating Measuring device H250 RR HC with heating Measuring device H250 RR HC...

Page 83: ...A Switching cycles 100000 Table 8 9 Limit switches K1 K2 1 Safety oriented 2 No inductances Terminal connection 2 5 mm2 Power supply 14 32 VDC 12 32 VDC without ESK4 T intrinsically safe max 30 VDC Min power supply for HART 20 VDC at 250 Ω load Measuring signal 4 00 20 00 mA 0 100 flow value in 2 wire technology Power supply influence 0 1 External resistance dependency 0 1 Temperature influence 5 ...

Page 84: ... 6 3 FW V 2 01 Power supply Bus supply 9 32 VDC intrinsically safe max 30 VDC Nominal current 16 mA typical 17 mA rated Error current 23 mA Boot up current after 10 ms Nominal current Table 8 11 ESK4 FF INFORMATION For more details refer to the supplementary instructions H250 M40 Foundation Fieldbus Physical Layer IEC 61158 2 and FISCO model Communication standard Profibus PA profile 3 02 PNO ID 4...

Page 85: ... mA Pulse output Ton Configurable from 50 500 ms Toff Depending on flow rate Pulse weight Configurable in flow units e g 5 pulses m3 Binary input Input Galvanically isolated Mode Reset counters or Start Stop Configurable as active HI active LO H signal 16 30 VDC Internal resistance Ri Typical 20 kΩ Ton active 500 ms LC display Technology Passive graphic LCD Display Measurement with units and or co...

Page 86: ...C Db II2D Ex ia IIIC T85 C Db FM USA NEC500 FM Canada NEC505 M40 electrical IS Class I Div 1 Class I Zone 1 AEx ia XP Class I Div 1 Class I Zone 1 AEx d NI Class I Div 2 Class I Zone 2 AEx nA DIP Class II III Div 1 Class II III Zone 21 AEx tb NEPSI M40 electrical Ex ia Ex d Ex nA Ex t CCOE PESO M40 electrical Ex ia Ex d EAC M40 mechanical Ex c M40 electrical Ex ia Ex d Ex nA Ex t INMETRO M40 elect...

Page 87: ...m mm DN15 1 2 94 3 70 114 4 49 20 0 80 97 3 82 197 7 76 DN25 1 94 3 70 127 5 00 32 1 28 109 4 27 209 8 23 DN50 2 107 4 22 141 5 55 65 2 57 125 4 90 222 8 74 DN80 3 107 4 22 157 6 18 89 3 51 143 5 61 238 9 37 DN100 4 107 4 22 167 6 57 114 4 50 150 5 91 248 9 76 Table 8 15 Dimensions in mm and inch 1 Wthout cable gland 2 Ex d Ex t Ex nA 10 mm 0 39 ISO 228 ASME B1 20 1 Female thread screwed ISO 228 A...

Page 88: ...eight for versions with heating in kg and lb H250 C Ceramic PTFE Screw connection Nominal size EN 1092 1 ASME 150 lb ASME 300 lb DIN 11864 1 EN ASME kg lb kg lb kg lb kg lb DN15 1 2 3 5 7 7 3 2 7 1 3 5 7 7 2 4 4 DN25 1 5 11 5 2 11 5 6 8 15 3 5 7 7 DN50 2 10 22 1 10 22 1 11 24 3 5 11 DN80 3 13 28 7 13 28 7 15 33 1 7 6 16 8 DN100 4 15 33 1 16 35 3 17 37 5 10 3 22 7 Table 8 17 Weight for flange and s...

Page 89: ... 14 28 1 13 22 32 50 K 15 8 1600 2 50 2 85 DN25 1 K 25 1 480 630 1000 9 5 14 11 24 32 72 K 25 2 820 1000 1600 15 23 11 24 33 74 K 25 3 1200 1600 2500 22 35 11 25 34 75 K 25 4 1700 2500 4000 37 50 110 1 12 26 38 78 K 25 5 3200 4000 6300 62 95 180 1 13 30 45 103 3 DN50 2 K 55 1 2700 6300 8400 58 80 230 1 8 13 74 60 K 55 2 3600 10000 14000 77 110 350 1 8 13 77 69 K 55 3 5100 16000 25000 110 150 7001 ...

Page 90: ... 8 423 2 31 0 2 1 25 DN25 1 K 25 1 127 166 264 5 89 8 68 0 16 0 35 0 47 1 06 K 25 2 217 264 423 9 30 14 3 0 16 0 35 0 49 1 09 K 25 3 317 423 660 13 6 21 7 0 16 0 37 0 50 1 10 K 25 4 449 660 1057 22 9 31 0 68 2 1 0 18 0 38 0 56 1 15 K 25 5 845 1057 1664 38 4 58 9 111 1 0 19 0 44 0 66 1 51 3 DN50 2 K 55 1 713 1664 2219 36 0 49 6 143 1 0 12 0 19 1 09 0 88 K 55 2 951 2642 3698 47 7 68 2 217 1 0 12 0 1...

Page 91: ...160 200 4 8 6 5 72 70 72 70 E 17 7 250 250 7 9 86 72 86 72 E 17 8 400 10 111 111 DN25 1 E 27 1 630 500 16 18 70 55 70 55 E 27 2 1000 700 30 22 80 60 80 60 E 27 3 1600 1100 45 30 108 70 108 70 E 27 4 2500 1600 70 50 158 82 158 82 E 27 5 4000 1 2500 120 75 290 100 194 100 DN50 2 E 57 1 4000 4500 110 140 81 70 81 70 E 57 2 6300 6300 180 200 110 80 110 80 E 57 3 10000 11000 250 350 170 110 170 110 E 5...

Page 92: ... E 17 7 66 0 66 0 4 34 5 58 1 25 1 04 1 25 1 04 E 17 8 106 6 2 1 61 1 61 DN25 1 E 27 1 166 132 9 92 11 2 1 02 0 80 1 02 0 80 E 27 2 264 185 18 6 13 6 1 16 0 87 1 16 0 87 E 27 3 423 291 27 9 18 6 1 57 1 02 1 57 1 02 E 27 4 660 423 43 4 31 0 2 29 1 19 2 29 1 19 E 27 5 1056 1 660 74 4 46 5 4 21 1 45 2 81 1 45 DN50 2 E 57 1 1057 1189 68 2 86 8 1 18 1 02 1 18 1 02 E 57 2 1664 1664 111 6 124 1 60 1 16 1...

Page 93: ... 70 2 6 31 0 45 K 010 N1 Stainless steel 3 0 8 100 4 38 0 55 K 015 N1 titanium 1 3 0 8 100 4 17 0 25 K 015 N1 Stainless steel 5 1 3 150 6 19 0 28 K 040 N2 titanium 1 7 1 8 250 10 17 0 25 K 040 N2 Stainless steel 10 2 6 400 15 27 0 39 K 080 N2 titanium 1 16 4 2 550 20 32 0 47 K 080 N2 Stainless steel 25 6 6 800 30 55 0 8 Table 8 22 H250 RR Low flow 1 Titanium components are not suitable for use in ...

Page 94: ...50 K 15 6 700 18 325 K 15 7 1200 30 590 K 15 8 1600 40 950 K 15 8 2400 60 1600 DN25 1 K 25 1 1300 35 122 K 25 2 2000 50 105 K 25 3 3000 80 116 K 25 4 5000 130 145 K 25 5 8500 220 217 K 25 5 10000 260 336 DN50 2 K 55 1 10000 260 240 K 55 2 16000 420 230 K 55 3 22000 580 220 K 55 3 34000 900 420 DN80 3 K 85 1 25000 650 130 K 85 2 35000 950 130 K 85 2 60000 1600 290 DN100 4 K 105 1 80000 2200 250 K 1...

Page 95: ...K 15 7 317 18 6 8 68 K 15 8 423 24 8 14 0 K 15 8 634 37 2 23 5 DN25 1 K 25 1 343 21 7 1 79 K 25 2 528 31 0 1 54 K 25 3 793 49 6 1 71 K 25 4 1321 80 6 2 13 K 25 5 2245 136 3 19 K 25 5 2642 161 4 94 DN50 2 K 55 1 2642 161 3 53 K 55 2 4227 260 3 38 K 55 3 5812 360 3 23 K 55 3 8982 558 6 17 DN80 3 K 85 1 6604 403 1 91 K 85 2 9246 589 1 91 K 85 2 15851 992 4 26 DN100 4 K 105 1 21134 1364 3 68 K 105 1 3...

Page 96: ... 4 4500 120 115 K 25 5 7600 200 172 DN50 2 K 55 1 9000 240 220 K 55 2 15000 400 230 K 55 3 21000 550 240 Table 8 25 H250U Vertical installation position metric EN ASME Cone Water GPH Air SCFM Pressure loss psig DN15 1 2 K 15 1 17 2 0 99 2 57 K 15 2 29 1 1 55 2 62 K 15 3 44 9 2 48 2 65 K 15 4 68 7 3 72 2 94 K 15 5 111 6 20 3 23 K 15 6 172 9 92 4 26 K 15 7 291 17 4 7 64 K 15 8 396 24 8 12 3 DN25 1 K...

Page 97: ...NOTES 9 97 H250 M40 www krohne com 03 2020 4000640706 MA H250 M40 R06 en ...

Page 98: ...9 NOTES 98 H250 M40 www krohne com 03 2020 4000640706 MA H250 M40 R06 en ...

Page 99: ...NOTES 9 99 H250 M40 www krohne com 03 2020 4000640706 MA H250 M40 R06 en ...

Page 100: ...s 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 com KROHNE 03 2020 4000640706 MA H250 M40 R06 en Subject to change without notice The current list of all KROHNE contacts and addresses can be found at www krohne com ...

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