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RHEONIK Messgeräte GmbH

REV. I, Apr. 2004

.

Operation Manual RHE 07, 08, 11

Page

11

NOTES FOR INTRINSICALLY SAFE INSTALLATION

Only equipment with safety agency labels attached to the sensor and transmitter meet the
agency approval requirements.
Intrinsically safe flow meters must be installed according to the wiring diagram, supplied with
the meter.
Observe proper earth ground wiring according to this diagram.
Sensor cable must be suitable for the sensor operating temperature range.
All intrinsically safe cables must be installed separated from all other cables.
Observe temperature class and maximum allowable sensor temperature, indicated on sensor
type label, for safe operation.
All electrical installations must comply with national and local codes.

1.4. Installation instructions for the RHE flow transmitter

Install the RHE unit in an area where the ambient temperature falls within the range

-40°C .. +60°C. For installations outside this range please consult the manufacturer.

Locations with extreme vibrations must be avoided.

Do not locate the flow transmitter in direct sunlight.

Sensor RHM and transmitter RHE were calibrated together at the factory.
Therefore make sure that the serial numbers of connected systems comply with
serial numbers indicated on instrument type labels.

1.5. Power supply wiring

The remote electronic unit RHE is delivered set up for 230 VAC, 115 VAC or 24 VDC power input.

The power supply must be turned off while wiring to the remote unit RHE ...

Power supply v-10% must correspond to the voltage indicated on electronic type label or in

the power supply wiring compartment.

The earth grounding of the power supply must be connected to the RHE power supply wiring section.

Failure to connect earth ground will nullify the intrinsic safety !

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Содержание RHE 07

Страница 1: ...REV I Apr 2004 Operation Manual RHEONIK Mass Flowmeter RHE 07 08 11 RHM NT ETx HT www rheonik de the mass flowmeter experts ...

Страница 2: ...tions 2 1 3 1 Zero calibration 14 2 1 3 2 Reset totalizer 15 2 1 3 3 Display units 15 2 1 3 4 Display sequence and format 16 2 1 3 5 Inputs and outputs 2 1 3 5 1 Current outputs 1 and 2 analog 17 2 1 3 5 2 Analog inputs 18 2 1 3 6 Digital inputs and outputs 2 1 3 6 1 Frequency output 19 2 1 3 6 2 Serial communication interface connection 20 2 1 3 6 3 External contact inputs 21 2 1 3 6 4 Contact ou...

Страница 3: ...3 6 2 Remote electronic RHE 07 08 11 batch menu 33 6 3 Optioncode selection 34 6 4 Examples with explanation 35 6 5 Serial interface and batch option 35 7 Replacement parts 36 A P P E N D I X Wiring diagram RHMxx RHE 07 08 11 Batch Menu RHE basic level user menu RHE service and diagnostic level menu Ex Safety Instructions EC Declaration of Conformity ...

Страница 4: ...um permitted working pressure must not be exceeded Especially piston pumps can produce considerable pressure peaks Please note that abrasive media can reduce the wall thickness of the measuring pipes and thus also reduce the maximum operating pressure The construction material which comes in contact with the medium is identified on the name plate The manufacturer accepts no responsibility for the ...

Страница 5: ...y pulses and digital outputs 1 to 3 digital output 3 passive function programmable digital output 2 passive function programmable digital output 1 passive function programmable digital output passive for mass flow rate frequency pulses external voltage max 30 VDC analog output 1 active current loop 0 4 20 mA max 1000 Ohm analog output 2 active current loop 0 4 20 mA max 1000 Ohm digital input 2 pa...

Страница 6: ... series sensors RHM with Ex Label are when connected with a Ex Transmitter made for installa tion inside hazardous areas Ex zone 0 1 or 2 The transmitter RHE includes seven printed boards which can be replaced during servicing The remote electronic unit consists of two bent measuring loops in the shape of an omega 1 2 Installation instructions for sensor RHM For liquids install the sensor RHM at l...

Страница 7: ...on the housing flanges can be used to secure it In every instance the sensor and the piping must be secured in front of and behind the sensor It is preferable to use stiff piping systems Avoid extreme reducers because these can cause cavities within the measuring tubes Reducers should be installed several metres from the measuring device when required In the case of the sensor sizes RHM 30 to 160 ...

Страница 8: ...e recommended Since the piping is not stable we recommend install ing these sensor sizes directly on the connection block For mechanical installation of these small meters we recommend a mounting skid made of alumin ium in order to achieve an optimum of stability with low installation time and costs Installing scheme with holder The sensor RHM as well as the measuring cable RHM RHE must be install...

Страница 9: ...t RHE with a cable having four pair of shielded wires plus 1 wire 9 wires It is very important that the function groups drive coils and sense coils are connected separately Two single shielded wires for each one see wiring plan In this way any interference between the drive signal and pick up cables is prevented The maximum distance between the sensor and the remote electronic unit is 200 metres a...

Страница 10: ... and not connected to the sensor but rather shortened and insulated there These measures prevent a current flow from passing through the cable shield between different earth potentials which could disturb measurements Notes for the RHM xx Typ HT An additional potential equalising conductor must be connected between the sensor RHM xx HT and the analytical electronics RHE terminal 3 for all high tem...

Страница 11: ...r the RHE flow transmitter Install the RHE unit in an area where the ambient temperature falls within the range 40 C 60 C For installations outside this range please consult the manufacturer Locations with extreme vibrations must be avoided Do not locate the flow transmitter in direct sunlight Sensor RHM and transmitter RHE were calibrated together at the factory Therefore make sure that the seria...

Страница 12: ...lay will show a measurement display If the power is cut for less than 10 seconds the display will show reset error 2 1 1 Keyboard and display The display is a dual line 16 character liquid crystal display LCD Below the display are 3 keys For LCD contrast adjustment a 270 angle trim potentiometer is installed on the back side of the RHE 07 19 housing Near the RHE 08 the same trim potentiometer is h...

Страница 13: ...surement data display The current mass totalizer and flow rate will appear Pressing key 3 scrolls you through the measurement data menu display 2 1 2 Basic operating and programming principle Operation takes place via menu control If you want to enter any menu you have to press the button below the displayed menu point MASS FLOW TRANSMITTER Diag Setup Next Base Funktions 1 Diagnosis Menu Setup Men...

Страница 14: ...Next 20mA 130 0 g min decrement number increment number step to next Menu example For a complete overview of the menu please have a look at the menu flow chart in appendix 2 1 3 Basic functions This section gives a short description of all functions needed to setup all inputs and outputs according to individual requirements 2 1 3 1 Zero calibration Zero calibration should be carried out when the m...

Страница 15: ...point calibration Step through the measurement data display by pressing key 3 until you can enter the zero ing menu Start the zero calibration process by pressing the zero key While the unit is zeroing for about 20 seconds ZEROING active will be displayed After the zeroing Exit is displayed Note If you want to recover the prior zero point before activating the new zero calibration for example wron...

Страница 16: ...nsity at reference temperature The selection may be changed as often as desired and will be held in non volatile EEProm memory Only certain units can be selected depending on the type of sensor chosen 2 1 3 4 Display sequence and Format In order to determine the sequence of different measurement data displays you have to program first second display function 1 Disp XXXXX In TOGGLE mode the LCD dis...

Страница 17: ...us is less than 3 7 mA 3 4 22 mA Output signal range is in between 4 22 mA Output error status is above 22 mA After this the first of two displays appears in order to scale the output The first display enables you to select the high numerical value of the variable that will be represented by 20 mA of current i e 20mA XXXXX Change that value by pressing or push buttons After the 20 mA value you are...

Страница 18: ... desired units for the analog input 0 1 5 volt from the following units V mA kg l C ml min m3 min bar bara psi mPas After pressing Next it is possible to set the input signal range to 1 5 Volts or to 0 5 Volts Next select the lowest and highest values for this range ie 0 1 and 5 Note For use as current loop input you have to connect a resistor of 250 Ohm example 250 Ohm 0 4 20 mA current source ...

Страница 19: ...put In this mode it is possible to set the frequency with a flow rate which corresponds to a frequency of 5 kHz The numerical value of the flow rate with a corresponding frequency of 5kHz can be changed by using the and keys The complete output frequency range is 0 to 10 kHz The frequency output is available from an passive opto isolated open collector driver For wiring see attached RHM RHE wiring...

Страница 20: ...s from A to Z available in menu Setup I O Dig in menu point Network Adr Basic Command Format Commands are sent by the computer to the transmitter The message protocol uses only ASCII char acters as follows Command header 7FH 7FH address Address is any character A to Z If the transmitter has no address no address character needs to be transmitted If is transmitted as an address this character is va...

Страница 21: ...n hon hold off totalizer hoff hoff clear error c c 2 1 3 6 3 External contact inputs The RHE electronic offers two possible inputs Both are galvanically isolated and are passive This means that in order to activate the inputs the opto isolators LED s have to be switched using an external support voltage of maximum 24 VDC R 2700 Ohm example resistor Optocoupler DC voltage m ax 24 V external contact...

Страница 22: ...ot used 2 1 3 6 4 Contact outputs The output hardware is the same as for frequency output see section 2 1 3 6 1 All outputs can be programmed as follows Limit Flow Temp Dens Flow rate temperature or density limit The output is active below the adjusted setting Limit Mass Mass totalizer limit The output is active below the adjusted totalizer value Error Output is activated when a malfunction in the...

Страница 23: ...normal operation closed no Flow Direc flow direction no Empty Tube 300 kg m closed open yes only active with option density measurement if yes is shown under selectable you can choose in a separate menu point between out active open or out active clsd closed All outputs can be selected in one and the same direction only Attention The maximum allowed current for the output transistor is 50 mA Pleas...

Страница 24: ... mA output to a certain value in order to then check the output using a connected measuring device or a supervisory control and data acquisition In Show mode you can see the actual mA value the output should have at a certain flow rate tem perature or density indication 2 1 4 1 1 Sensor diagnostics This function is helpful for start up checking or for testing sensor malfunctions The single diagnos...

Страница 25: ...023 steps This channel is in use for sensor temperature measurement ADChannel2 The second analog input channel has the same technical specifications as ADChannel1 It is a channel for special use see refer 2 1 3 5 2 analog input RTime Electronic run time counter in days and hours Mass Second non resetable totalizer 2 1 4 3 Sensor basic level programming BASIS SETUP To enter this menu you have to in...

Страница 26: ...or applications with pulsating flow rates piston pumps Time Mass Flow actual Flow mono Piston Pump mean Flow indicated Flow high Damping TFlow Digital damping value for display and analog outputs flow rate TFlow is response time in X XX seconds FiltBand Flow rate filter band in percentage of half nominal sensor flow rate Depending on software verion slight and insignificant deviations of this flow...

Страница 27: ...ant deviations of this flow rate may be given The CutLimit is valid for digital flow rate display totalization and current outputs if preseted for Flow Time Mass Flow Mass Flow Time Low Flow Cutoff Cut Limit actual Flow indicated Flow DensCutoff Density cut off for flow rate indication and totalization For applications where the liquid is removed by gas stream out of the pipeline but the meter sho...

Страница 28: ...s not totally filled with liquid A transmitter which is not properly wired to the flow sensor will indicate error code number 2 ERR 2 Possible error codes are Code Display Description Err 1 Drive Drive signal error Drive amplifier gives maximum power possible causes extreme unbalanced vibrating sensor system for instance gas bubbles in the pipe loops or pipes are not filled completely drive coil t...

Страница 29: ...usted Err 4 Parameter Error on parameter check Error occurred during parameter transfer from EEProm to RAM memory Calculated checksum is different from backuped checksum Err 5 RAM Error on RAM check Err 6 ROM Error on ROM check Defective EEProm storage cell detected calculated checksum is different from programmed checksum Err 7 EEProm No EEProm reading or writing possible Err 8 Division Calibrati...

Страница 30: ...s sensor size Reduce flow rate to have optimum accuracy Warn3 TempRange Sensor temperature is more than allowable sensor temperature set in MaxTemp menu Reduce sensor temperature The electrical installations inside the sensor will be damaged Warn4 Drive For a short time there was a lot of damping of the meter oscillation for instance due to gas bubbles in liquids Warn5 OverflTot There was a totali...

Страница 31: ...t the transmitter and check the resistances at the sensor RHM terminals Terminal Circuit Resistance 1 Drive 5 170 Ohm terminal 1 2 2 Drive 3 PT100 107 109 Ohm at 20 C terminal 3 4 4 PT100 5 PT100 0 Ohm short circuit terminal 4 5 6 Coil 1 30 150 Ohm terminal 6 7 7 Coil 1 8 Coil 2 9 Coil 2 30 150 Ohm terminal 8 9 If one of these values is infinite the sensor RHM is defective Check insulation resista...

Страница 32: ...t the person responsible at your local representative to solve this problem 5 2 TEMPERATURE CALIBRATION Temperature measurement is already factory calibrated Normally a new temperature setup or new recalibration is not necessary The PT100 is connected by 3 wires so that the measurement is just influenced by one wire resistance For extreme long cable length there is a software Adjust Funktion for c...

Страница 33: ...value to the correct value in order to have exactly the required batch value Pset If a batch is stopped it is possible to decide afterwards to continue GoOn or to stop the batch and start a new one Clear If the power supply is disconnected during a batch this batch is stopped and cannot be continued from the last value anymore a new batch has to be started 6 2 Remote electronic RHE 07 08 11 batch ...

Страница 34: ... or standard function Out2 output 2 can be configured Preset or Prewarn or standard function Out3 output 3 can be configured Preset or Prewarn or standard function 6 3 Option code selection Choose in the service and diagnosis menu the sub menu step Calibration Menu Now press all 3 buttons in the same time The Display shows Option 0 00000 Press the or button to select the needed code If you can see...

Страница 35: ...lve and the output for Pwarn to the main flow valve Pset to be set to 100 kg Pwarn to be set to an estimated value depending on the delay time i e 2 kg The aoc can not be activated now The main flow valve will close at 98 kg and the small flow valve will close at 100 kg This means that still a very small overflow will appear This can be eliminated by changing the Pset value to a smaller correspond...

Страница 36: ...d Signal Conditioning Board MM 03 Processor Board MIO 03 I O Board Display LCD Board MB 07 08 11 Motherboard RHE 07 08 11 TR 50 2 Fuse 0 2 A TR 51 0 Fuse 1 A DINCON Sensor IO DIN connector with housing for RHE07 Attention For sensor RHM Due to technical reasons only complete RHM can be offered as spare parts If you have a standard sensor RHM with sealing the sensor however could be offered without...

Страница 37: ... HAZARDOUS AREA SAFE AREA current open collector max 50 mA Intrinsically safe only for EEx version digital input 2 passive function programmable external voltage max 24 VDC digital input 1 passive function programmable TERMINAL BOARD ADAPTER Note EEx version In and outputs connector J7 are galvanically isolated Sensor connections and zeroing contact J9 are intrinsically safe Drive coils Temperatur...

Страница 38: ... Date created Customer External intrinsically safe zeroing contact option is subject of a separate EEx certificate Note EEx version In and outputs connectors 15 to 27 are galvanically isolated Sensor connections 1 to 9 are intrinsically safe HT SENSORS High Temperature Screen to ground connection MUST BE done An additional potential equalising cable is required see Manual NT ETx Sensors please DO ...

Страница 39: ...ally safe Attention The local normatives for devices in the hazardous area have to be considered Please also consider the special conditions and rules in our field manual and the respective advises Do not open cover of RHE 11 if powered Please consider the specified temperature of sensor cable Note Sensor connections terminal 1 to 9 are intrinsically safe circuits Option RS 422 485 are intrinsical...

Страница 40: ...ection with RHE xx black green red white black green red white 1 2 3 4 5 6 7 8 9 RHE 01 05 RHE 06 07 08 11 Remote unit cable marked with blue or white heat thrink 1 2 3 4 5 6 7 7a 8 Mass Flow Meter Sensor RHM xx Pick up coil 1 Pick up coil 2 Drive coils Temperature Sensor PT100 black green red white black green red white 1 2 3 4 5 6 7 8 9 RHE 01 05 RHE 06 07 08 11 Remote unit 3 4 5 6 7 8 9 10 1 2 ...

Страница 41: ...SUREMENT DATA DISPLAY 2 XXXX XX kg B Start Stop Next 0 00 kg B Batch Display Batch Setup Next BATCH OPTION has to be activated XXXX XX kg B Start Stop Next Batch STOP GoOn Clear display is only temporary reset go to next display start counter at 0 Preset Batch Value Pre shut off Value blinking B disappears after Preset Value is reached V1 1 04 04 created by service rheonik de ...

Страница 42: ...old Total Zero Flow Quit Error Batch Start Batch Stop MEASUREMENT DATA DISPLAY 1 MEASUREMENT DATA DISPLAY 2 on off 300 600 1200 2400 Enter Setup Mode Enter Error Next XXX kg W X XX kg min XXX X C W X XXX kg l XXX kg E X XX kg min XXX X C E X XXX kg l Warn no Quit Exit Err no Quit Exit Enter Setup Mode Enter Error Next ZEROING active XX XX XX XX kg Reset Undo Exit Zero X XX Undo Zero Exit approx 20...

Страница 43: ...OSE MENÜ Serial Line Test Send Rec Next DigOut2 Next DigOut3 Next DigInp1 Next DigInp2 Next on off Diagnosis Menu I O Sens Exit Dens1 XXX X g l next Freq1 XXX XXXHz next Dens2 XXX X g l next Freq2 XXX XXXHz next Int Gates XXX next Scale mul XXXX next Scale div XXXXX next ZeroPnt XXXXX next RefTemp XXX XC next AdjTemp XXX X XXX X C AdjDens XXXX X XXXX kg l DensCor XX XX next TempCor XX XX next Pres...

Страница 44: ...e area II 1 G EEx ia II C Remote unit RHE07 safe area II 1 G EEx ia II C Remote unit RHE08 safe area II 1 G EEx ia II C Remote unit RHE11 hazardous area Zone 1 or 2 II 2 1 G EEx d e ia II C Hazardous area Group II Zone CENELEC EN60079 14 Categories acc to 94 9 CE directive Gas mists or vapours Zone 0 1 G Gas mists or vapours Zone 1 2 G Gas mists or vapours Zone 2 3 G Marking The instrument marking...

Страница 45: ...nual RHE 07 08 11 Appendix 1 Specific Marking Note If the number indicating the level of protection is put into brackets the instrument can be installed in a safe area only but can be connected to the indicated category instruments in the hazardous area ...

Страница 46: ...RHEONIK Messgeräte GmbH REV I Apr 2004 Operation Manual RHE 07 08 11 Appendix 2 Additional Marking ...

Страница 47: ... Hz 125 VAC 10 VA RHE 07 08 11 24 VAC 50 60 Hz 26 VAC 10 VA RHE 07 08 11 24 VDC DC 30 VDC 10 VA Temperature tables Measurement fluid temperatures at ambient temperature 60 C Max fluid temperature C in temperature class at Ta 60 C T6 T5 T4 T3 T2 T1 Sensor RHM NT 50 65 100 120 Sensor RHM ET 165 210 Sensor RHM HT 165 260 350 Min fluid temperature C in temperature class at Ta 60 C T6 T5 T4 T3 T2 T1 Se...

Страница 48: ...ds Ex d with any other type that do not have this type of protection The sensor cable connection between sensor RHM and the remote unit RHE is intrinsically safe Only the cable delivered by RHEONIK may be used The use of any other cable shall be clarified with RHEONIK beforehand For installation below minus 30 C the steel armored cable blue must be used The use of any other cable shall be clarifie...

Страница 49: ...terminals can be connected to a sensor RHM which is installed in an hazardous area The remote unit RHE11 type of protection pressure proof capsule enhanced safety intrinsic safety d e ia and may be installed and operated in hazardous areas 1 or 2 The RHE11 temperature class is T5 60 C and has a pressure proof housing All connections such as in puts outputs and power supply are connected via the te...

Страница 50: ... document s Technical regulations EN 61000 6 2 EN 61000 6 3 EN 6100 6 4 in accordance with the Low Voltage Directive 73 23 EEC and it s amendment 93 68 EEC is in compliance with the following norm s or document s Technical regulations EN 61010 1 in accordance with the ATEX Directive 94 9 EEC is in compliance with the following norm s or document s Technical regulations 1 EN 50014 EN 50018 EN50019 ...

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