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RHE21 Installation & Startup Guide – Doc. No. 8.2.1.04 – Ver. 1.31

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Upon power up, if the RHE indicates an error and the temperature measurement on the bottom
right of the display shows “ -.--°C/°F ” please check the temperature measurement configuration
setting in the RHE (section 4.5).
The correct temperature measurement configuration setting for an RHM legacy sensor is “1”.

Figure 4: RHE21 Wiring with RHM legacy Sensors

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Содержание RHE21

Страница 1: ...RHE21 Installation Startup Guide Doc No 8 2 1 04 Ver 1 31 1 58 RHE21 Installation Startup Guide Document No 8 2 1 04 Version 1 31 APR 2021 ...

Страница 2: ...1 4 Legacy RHM Sensors 9 Terminals 9 Power Supply Grounding and I O Connections Overview 11 3 2 2 1 Grounding 13 3 2 2 2 12V to 24V DC Power Supply 13 3 2 2 3 100V to 240V AC Power Supply 13 3 2 2 4 AC and DC Supply 14 Control Inputs and Outputs 14 3 2 3 1 Digital Outputs 14 3 2 3 2 Analog Outputs 16 3 2 3 3 Digital Inputs 18 3 2 3 4 Analog Input 19 4 Operation and Configuration 20 4 1 Function of...

Страница 3: ...ous area 33 A 2 System Description 34 A 3 Electrical Safety Limits 34 A 4 Thermal Safety Limits 36 A 5 Grounding and Shielding 36 A 6 Installation 36 A 7 Electrical connection of power supply and I O 38 A 8 Electrical connection to RHM and pressure sensor 38 A 9 Ordering Code 40 A 10 Technical Data 41 A 11 Compliance 41 A 12 Service and repair 42 A 13 Contact address 42 Appendix B Technical Inform...

Страница 4: ...y for loss and or consequential damages stemming from the use of this product utilized in life preserving systems in the medical motor vehicle aircraft water craft or mining industries Rheonik accepts no liability for loss or damage resulting from the improper use of any of its products Rheonik assumes no liability for the loss of production and or consequential damage from the use of this product...

Страница 5: ...measurement screen In case of an error the backlight will turn red 5 Flush the RHM flow sensor with process fluid and ensure that it is free of air bubbles in case of a liquid process fluid or liquid droplets in case of a gaseous process fluid 6 Wait until the RHM temperature has stabilized and then carry out a zero point calibration section 4 3 Ensure a zero flow condition is present in the flow ...

Страница 6: ...nal box Only interconnecting cable ARHE Cx cable supplied by Rheonik should be used to connect an RHE to an RHM Cable not supplied by Rheonik may lead to a poor performance of the Coriolis mass flow meter Table 1 Overview RHM electrical connection types RHM electrical connection type Junction box terminals Section JM SM aluminium stainless steel 11 3 1 1 1 TM PTFE cable with 9 wires shield 3 1 1 2...

Страница 7: ...Connection Types JM SM Upon power up if the RHE indicates an error and the temperature measurement on the bottom right of the display shows C F please check the temperature measurement configuration setting in the RHE section 4 5 The correct temperature measurement configuration setting for an RHM with connection type JM or SM is 7 3 2 1 2 RHM Electrical Connection Type TM PTFE Cable Table 3 RHE21...

Страница 8: ...ve Coil low 2 DrvL 3 PT1 Pipe Supply Red Temperature Sensor Pipe 3 PtP 4 PT1 Pipe Sense Pink Temperature Sensors GND 4 PtG 5 PT 1 2 Common 6 Pick Up left Yellow Pick Up Coil A high 6 PkAH 7 Pick Up left Green Pick Up Coil A low 7 PkAL 8 Pick Up right Grey Pick Up Coil B low 8 PkBL 9 Pick Up right White Pick Up Coil B high 9 PkBH 10 2 GND yel grn Shield 10 PE 11 PT2 Tor Supply Orange Temperature Se...

Страница 9: ...tP 4 Pink Temperature Sensor Pipe Sense 4 PtG 5 Orange Temperature Sensors Common 5 PtT 6 Yellow Pick Up Coil A high 6 PkAH 7 Green Pick Up Coil A low 7 PkAL 8 Grey Pick Up Coil B low 8 PkBL 9 White Pick Up Coil B high 9 PkBH Screw Term 2 yel grn Shield 10 PE 1 Connection only necessary for RHE21 construction types E5 and H3 without integrated sensor cable 2 The shield of the cable is connected to...

Страница 10: ... error and the temperature measurement on the bottom right of the display shows C F please check the temperature measurement configuration setting in the RHE section 4 5 The correct temperature measurement configuration setting for an RHM legacy sensor is 1 Figure 4 RHE21 Wiring with RHM legacy Sensors ...

Страница 11: ...ent carrying capacity of the cable For RHE21 constructions types E the power supply and I O connections are located in the terminal box shown in Figure 5 The available I O connections depend on the I O configuration option of the RHE21 Figure 5 RHE21 Types E with Terminal Box for Power Supply I O Connection and optional Layout For RHE21 constructions types H the power supply and I O connections ar...

Страница 12: ... all versions except i versions 50 Analog 4 20mA Output 24Vo RHE21 E P1 RHE21 H 51 AO1H RHE21 P2 PH CH i1 i2 i3 iH 52 AO1L RHE21 P2 PH CH i1 i2 i3 iH RHE21 H S2 SH 53 AO2H RHE21 P1 P2 PH CH i2 iH 54 AO2L RHE21 P1 P2 PH CH i2 iH RHE21 H S1 S2 SH 55 AO1 RHE21 E S2 SH 56 AO2 RHE21 E S1 S2 SH 57 GND RHE21 S1 S2 P1 SH RHE21 H 60 Analog 4 20mA Input AI RHE21 E5 H3 CH 61 AIG RHE21 E5 H3 CH 68 PE RHE21 E5...

Страница 13: ...order code options D1 and U1 require a regulated DC supply voltage of 12V or 24V They will operate with a power supply in the range 10V to 28V Connect the positive supply to terminal 20 and 0V to terminal 21 Terminals 21 0V and 22 PE are connected via a 1kΩ resistor The resistor can withstand a potential difference of up to 30V between 0V and PE but voltage differences above 5V should be avoided 3...

Страница 14: ...sed to power the RHE until the Voltage present drops below 10V An RHE RHM flow meter has a typical power consumption of around 3W If a 12V 100Ahr battery is used as the DC input to the RHE the unit would operate for more than 10 days after the AC supply had been disconnected Control Inputs and Outputs In general shielded cables should be used for cable connections longer than 0 5m For cable connec...

Страница 15: ... 100mA 2 4W at 24V The output can drive relays directly as well Relays should be connected between the output and the positive supply rail 3 2 3 1 2 Intrinsically safe Digital Outputs NOTE Intrinsically safe I O circuits must only be operated with certified barriers or isolating amplifiers The RHE21 can be supplied with up to two intrinsically safe digital outputs Outputs DO1 and DO2 are universal...

Страница 16: ...er 3 2 3 2 Analog Outputs 3 2 3 2 1 Non intrinsically safe Analog Outputs RHE21 H An RHE21 H transmitter can be supplied with up to two 4 20 mA analog outputs The outputs can be connected in a passive floating configuration or as active outputs for ground referenced loads Output 1 can optionally be equipped with a HART digital communications interface For a floating output connect terminal 51 53 f...

Страница 17: ... 2 outputs output AO1 terminal 55 and AO2 terminal 56 Connect the load as shown between terminal 55 and 57 or 56 and 57 The RHE21 E P1 have 1 passive floating analog output AO2 terminals 53 and 54 which also can be wired as active grounded output according to Figure 13 as described above The RHE21 E P2 PH and CH have 2 passive floating analog outputs AO1 Terminals 51 and 52 and AO2 terminals 53 an...

Страница 18: ...ally Safe Analog Outputs Connect the output of the RHE to the isolating switching amplifier For analog outputs with HART communication a HART transparent isolating amplifier must be used 3 2 3 3 Digital Inputs RHE21 transmitters are equipped with one IEC60946 compliant digital input NOTE Unless advised in advance of delivery all digital inputs are configured by default for active high operation at...

Страница 19: ...with a passive 4 20 mA output The RHE21 transmitter provides power to the connected devices output The 4 20mA analog input is connected to terminal 60 positive and terminal 61 negative in the bottom terminal box It is highly recommended to use a shielded cable and that the shield is connected to terminal 68 PE at the transmitter The analog input in RHE21 transmitters is certified for use with an e...

Страница 20: ...r input field and returns to the associated menu window without saving any changes NEXT Menu Navigation Selects the next menu item During Number Input Increments the number at the cursor position by one Number increment is circular a 9 increments to 0 for decimal numbers F increments to 0 for hexadecimal numbers used for service password Number Sign Change Changes to and vice versa When entering a...

Страница 21: ...2 Passcodes and Menu Selection To configure and carry out certain functions in an RHE21 transmitter it is necessary to enter a predetermined passcode Passcodes protect configuration setup and prevent inadvertent changes to the flow meter operating condition There are two different access levels with separate passcodes USER and SERVICE The USER level accesses those functions that relate to the oper...

Страница 22: ...rt the procedure or ESC to cancel Once started a countdown timer will begin When it reaches 0 the zero offset calibration procedure is complete Return back to the main screen by pressing the EXIT pushbutton twice 4 4 Change of Positive Flow Direction Rheonik mass flow meters are bi directional and can operate with flow passing through them in any direction In some cases after installation the tran...

Страница 23: ...operly configured in all RHE2X transmitters For new RHE RHM systems the temperature measurement type will have already been configured at the factory Checking that the setting is correct or to change the setting so the transmitter can be used with a different RHM flow meter body requires accessing the temperature measurement configuration menu item as shown in Figure 21 Figure 21 RHE21 Menu Temper...

Страница 24: ...ER to get to the Configuration C B01 menu 2 Select one of the options stated in Table 9 under ID C B01 e g Configuration 3 Density 3 The default settings are Maximum mA C B02 20mA Minimum mA C B03 4mA This can be changed if necessary 4 Assign the maximum and minimum of the measured variable to respective mA level e g 1200 kg m for Density Max C B08 and 0 kg m for Density Min C B09 5 Select a fire ...

Страница 25: ...ange exceeded State 5 3 6 mA range exceeded State 6 22 mA error condition State 9 3 2 mA error condition State 10 3 6 mA error condition C B17 CurOutDampingTau Current Output Damping Tau Time constant Tau of the current output damping in seconds An exponential damping mechanism is used within a defined band see CurOutDampingBand When the output values leave the defined band the damping is disabled...

Страница 26: ...rtant pulse and digital Output Parameters ID Abbreviation Full Name Description R S01 VersDigOutCh0 1Config Versatile Digital Output Configuration Used to assign different functions to the pulse output In simple pulse mode Pulse1 and Pulse2 operate independently In phase shift mode Pulse1 and Pulse2 work together to produce the desired pulse output relationship In phase shift mode both outputs Pul...

Страница 27: ...larm Channel Digital Alarm Type 0 Setpoint alarm hysteresis default Alarm is indicated when the output is higher than DigOutCh0AlmHigh and cleared when it returns below DigOutCh0AlmLow 1 Inband alarm Alarm is indicated when the output is in the range from DigOutCh0AlmLow to DigOutCh0AlmHigh 2 Outband alarm Alarm is indicated when the output is outside the range DigOutCh0AlmLow and DigOutCh0AlmHigh...

Страница 28: ... Zeroing Process Logic is negative a transition to a low logic level starts the Zeroing 3 DI1 2 causes reset of the Totalizers and the start of Batch Processing if configured see RHE2X Desktop Reference Batch Mode Logic is positive a transition to a high logic level starts the Batch 4 DI1 2 causes reset of the Totalizers and the start of Batch Processing if configured see RHE2X Desktop Reference B...

Страница 29: ... termination resistor with a switch at the back side of the transmitter Normally the termination switch and the factory default position should be set to ON When more than one device is attached to the RS485 line this switch must be set to OFF for all devices on the line except for those devices at each end of the line where the switch must be set to ON The termination resistor switch as well as t...

Страница 30: ...ace is an option offered with the RHE21 transmitter Connect the analog output 1 as described in chapter 3 2 3 1 2 to a HART host input A 250 Ω load resistor is recommended when connecting a HART modem For a full description of the available HART register set refer to the RHE2X HART manual ...

Страница 31: ... meters using RHE2X transmitters Regular checks of the zero point calibration according to point 6 of section 2 and section 4 3 are recommended to ensure a consistent measurement accuracy within the allowed deviations Density measurement in a RHE2X transmitter can be calibrated in the field Please refer to the relevant section in the RHE2X Desktop Reference for instructions 6 2 Troubleshooting Eac...

Страница 32: ...RHE2X transmitters do not contain any user serviceable parts Please contact your local sales support agent or Rheonik Support for assistance 6 4 WEEE and RoHS RHE21 transmitters are not subject to the WEEE directive and are fully compliant to the RoHS directive 7 Ordering Code ...

Страница 33: ...ed 100 meters The connection cable ARHE C4 is specified for 50 C to 105 C Temperatures above must be avoided Temporary temperatures below 50 C are allowed if the cable is fed in a protecting tube Always close unused cable glands and openings with certified dummy plugs When installed in the hazardous area the RHE21 must not be opened with any power connection alive THE USB interface must not be use...

Страница 34: ...e in Certified according by A1 zone 1 2 safe area ATEX IECEx A2 zone 2 safe area ATEX IECEx AS safe area ATEX IECEx C1 zone 0 1 2 div 1 2 safe area CSA for USA and Canada C2 zone 2 div 2 safe area CSA for USA and Canada CS safe area CSA for USA and Canada A 3 Electrical Safety Limits Power supply and I O All RHE21 except RHE21 E D1 I A Signal Terminals Type Nominal Voltage Um AC supply 23 24 Suppl...

Страница 35: ... Only RHE21 E D1 I A Circuit name Terminals Ui V Ii mA Pi mW Li mH Ci nF 4 20mA out 51 52 53 54 30 100 750 0 1 negligible Digital out 40 41 42 43 30 50 375 negligible negligible Digital in 46 47 30 50 375 negligible negligible Intrinsically safe I O terminals for RHM Circuit name Terminals E5 H3 Cable colors fixed RHM cable Uo V Io mA Po mW Lo mH Co nF Drive circuit 1 2 Brown blue 8 1 136 275 1 9 ...

Страница 36: ...s no potential difference between PE at the RHM and PE at the RHE This can be assumed if there is a good metallic contact or if a dedicated PE cable of at least 4mm connects the two grounding points Most RHM provide a PE terminal and terminal for grounding via 1nF If there is no capacitive ground special measures might be required Power supply and I O circuits I O and supply cables should be shiel...

Страница 37: ... for the optional intrinsically safe 4 20mA input for pressure measuring This Connection box has 1 no 4 20mA input or 2 with 4 20mA input cable glands with a clamping range 4 11mm Special conditions for CSA certified units RHE21 marked Class I Div 1 Group A B C D and or Class I Zone 1 A Ex db ia Ga IIC T4 Gb 1 Shall be installed in class I Division 1 Zone 1 location 2 Unused conduit openings shall...

Страница 38: ...on and usage of the different I O and supply circuits refer to the corresponding chapters of the main manual The USB interface must not be connected and used in hazardous areas RHE21 H The RHE21 H have internal cage clamp terminals in the XP housing Conductor cross section 0 2 2 5mm Stripping length 6 9mm RHE21 E ATEX IECEx only The RHE21 E have screw type terminals in the Ex e connection box Cond...

Страница 39: ... not shown in the figure For further information regarding the connections the function of the different signals and special connections for RHM with fixed cable please refer to chapter 4 Electrical Installation and to appendix A Ex safety instructions of the RHM manual The RHE21 E5 and H3 have cage clamp terminals for RHM and pressure sensor Conductor cross section 0 2 2 5mm Stripping length 6 9m...

Страница 40: ...housing H II 2 1 G Ex db eb ia Ga IIC T4 Gb RHE21 in zone 1 or 2 housing E A2 II 3 1 G Ex db ia Ga IIC T4 Gc RHE21 in zone 2 housing H II 3 1 G Ex db ec ia Ga IIC T4 Gc RHE21 in zone 2 housing E AS II 1 G Ex ia Ga IIC RHE21 in safe area CSA USA and Canada C1 class I Div 1 Ex db ia Ga IIC T4 Gb RHE21 in zone 1 or 2 Div 1 or 2 C2 class I Div 2 Ex nA ia Ga IIC T4 Gc RHE21 in zone 2 Div 2 CS Ex ia Ga ...

Страница 41: ... following standards for hazardous areas IEC 60079 0 IEC 60079 1 IEC 60079 7 IEC 60079 11 For the list of standards relevant for a certain unit and for the release date refer to the certificate The RHE21 certified by CSA comply with the following standards for hazardous areas C22 2 No 61010 1 2012 UL 61010 1 3rd Ed C22 2 No 30 M1986 R2012 UL 1203 5th Ed 2013 C22 2 No 60079 0 6th Ed UL 60079 0 6th ...

Страница 42: ...le parts and must not be opened by the user If the unit gets modified in any way the Ex certification gets void In case of malfunction connect your dealer or directly Rheonik Messtechnik GmbH A 13 Contact address Rheonik Messtechnik GmbH Rudolf Diesel Str 5 85235 Odelzhausen Germany www rheonik com info rheonik com ...

Страница 43: ...enu navigation and settings Power Supply AC 100 240 VAC 48 to 62 Hz 6W DC 12 24 VDC 10 6W Sensor Connection Integral sensor cable or terminal box with cage clamp terminals Power Supply and I O Connections Screw type terminals in a connection box construction types E Internal cage clamp terminals construction types H Cable entries sensor 1 or 2 cable glands 7 11mm only construction types E5 and H3 ...

Страница 44: ...uts Output signal Status Type 24V push pull according to IEC60946 Maximum current 20mA high state 100mA low state Quantity Up to 2 depending on I O configuration Output value programmable Digital Inputs Type 24V according to IEC60946 Input Level 13V for high state 6V for low state Input Current 1mA Quantity 1 Input value programmable Analog Input Type 4 20mA active compliant to NAMUR NE 43 For 2 w...

Страница 45: ...Appendix B Technical Information Ver 1 00 45 58 B 2 Mechanical Drawings Type E1 E2 Figure 15 RHE27 Transmitter Dimensions and Rear View RHE21 E1 E2 Transmitter Dimensions all dimensions in mm ...

Страница 46: ...Appendix B Technical Information Ver 1 00 46 58 Type E3 E4 RHE21 E3 E4 Transmitter Dimensions all dimensions in mm ...

Страница 47: ...Appendix B Technical Information Ver 1 00 47 58 Type E5 RHE21 E5 Transmitter Dimensions all dimensions in mm ...

Страница 48: ...endix B Technical Information Ver 1 00 48 58 Type EP RHE21 EP Transmitter Dimensions all dimensions in mm type EP for panel mount 8 mm recessed I O terminal box to fit RHE21 display front into panel window ...

Страница 49: ...ix B Technical Information Ver 1 00 49 58 Type H1 H2 RHE21 H1 H2 Transmitter Dimensions all dimensions in mm figure shows CSA version ATEX IECEx version has the same sensor connection part as type E1 E2 E3 E4 ...

Страница 50: ...ndix B Technical Information Ver 1 00 50 58 Type H3 RHE21 H3 Transmitter Dimensions all dimensions in mm bottom sensor connection box with 1 x M16 gland standard 2 x M16 glands only with analog input option ...

Страница 51: ...1 00 51 58 B 3 Mounting Drawing The mounting brackets are designed for a 2 pipe 60 3mm 2 4 outer diameter The screws must be tightened with a torque of 5 1 Nm RHE21 pipe bracket mounting with accessory ARHE21 H all dimensions in mm inches ...

Страница 52: ...Appendix C CE Certificates 52 58 Appendix C CE Certificates ...

Страница 53: ...Appendix C CE Certificates 53 58 ...

Страница 54: ...Appendix C CE Certificates 54 58 ...

Страница 55: ...Appendix C CE Certificates 55 58 ...

Страница 56: ...Appendix C CE Certificates 56 58 ...

Страница 57: ...Appendix C CE Certificates 57 58 ...

Страница 58: ...Document No 8 2 1 04 Version 1 31 APR 2021 ...

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