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Related Manuals for RHEONICS SRV
Summary of Contents for RHEONICS SRV
- Page 1 ATEX and IECEx Certified Sensors Installation of Intrinsically Safe Sensors Manual Applicable to Rheonics Sensor Types: SRV, SRD, SRV-FPC, SRD-FPC Certified ATEX and IECEx Viscometers and Density Meters Product: SR Sensors - ATEX and IECEx certified Rev 2.0 October 2020...
- Page 2 Rheonics. The information contained in this manual is subject to change without notice. TRADEMARKS Rheonics is a trademark of Rheonics, Inc. Other product and company names listed in this manual are trademarks or trade names of their respective manufacturers. SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P.
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Page 3: Table Of Contents
Rheonics | Switzerland | U.S.A. English version of this manual is the only approved version from Rheonics and installers should refer to it to confirm the correctness of information. In case of any questions contact your local partner or Rheonics support. - Page 4 Figure 4: SRV sensor with protective sleeve and impact shield mounted ..........12 Figure 5: End view of SRV showing orientation of slot in impact shield ............. 12 Figure 6: Pinout of M12 connector with no Pt1000 installed ..............15 Figure 7: Pinout of M12 connector with 4-wire Pt1000 connection ............
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Page 5: Purpose Of This Manual
Rheonics SRV, SRV-FPC, SRD and SRD-FPC sensors labelled with the hexagonal ATEX mark: All other versions of Rheonics SRV/SRD sensors should NOT be considered safe to use in areas with potential presence of explosive atmospheres. 2. Description of the sensors and general installation considerations Rheonics SRV sensors are used to measure and control the viscosity of fluids, mainly under process conditions. - Page 6 Suitable cabling to safely connect the Rheonics SR sensor to its associated Zener barrier(s) is to be provided by the installer. The minimum specification for the cabling in order to ensure intrinsic safety is given in section 5.1.
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Page 7: Ex Label Description
Sensor Manufacturer See below for “Tx” and “X” conditions for explosion - classification and certificates Figure 1: Example of sensor labels identifying the markings SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 7 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 8: Figure 2: Iecex Explosion Classification Description
Non-mining equipment Category 1 (Zone 0) For gases Figure 3: ATEX marking description SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 8 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. Rheonics confidential and proprietary information. -
Page 9: General Note On Category Of Protection And Operating Zone
It is the responsibility of the installer and the end user to ensure that any Rheonics SRV or SRD sensor that has been used in a Category 2 installation is not re-used for Category 1 or 2 installations. -
Page 10: Electrical Parameters Relevant To Intrinsic Safety
Table 2: Temperatures for gas ignition classes (T class) -40°C….+70°C -40°C….+85°C -40°C….+120°C -40°C….+185°C SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 10 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. Rheonics confidential and proprietary information. -
Page 11: Pressure Rating Of The Sensors
The SR sensors are provided in two variants that have different pressure ratings. All variants except for the “FPC” or fixed process connection SRV and SRD sensors are rated for a maximum hydrostatic pressure of the process fluid of 700 bar (10,000 PSI) in order to retain IP54 ingress protection as relevant for the sensor’s intrinsic safety. -
Page 12: Figure 4: Srv Sensor With Protective Sleeve And Impact Shield Mounted
Impact shield Impact shield must be installed so that slot in shield is facing down Figure 5: End view of SRV showing orientation of slot in impact shield ATTENTION: These parameters and conditions must be adhered to. If not, injury may be caused to person or property. -
Page 13: Safe Use Of Atex Approved Equipment
Wiring of the cable to a suitable sensor-side connector o Wiring of the cable to the Zener diode barrier(s) associated with the system. SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 13 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 14: Cabling
5.1. Cabling The SRV/SRD sensor is connected to its associated Zener diode barriers by means of a cable that has an 8 pole M12 connector on the sensor end. The end that connects to the Zener diode barrier must be provided with crimped conductor-end sleeves, which are held by screw clamps on the Zener diode barriers. -
Page 15: Figure 6: Pinout Of M12 Connector With No Pt1000 Installed
Figure 6: Pinout of M12 connector with no Pt1000 installed For a connection with 4 wires, the pinout is shown in Fig. 7 below: SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 15 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 16: Figure 7: Pinout Of M12 Connector With 4-Wire Pt1000 Connection
Figure 7: Pinout of M12 connector with 4-wire Pt1000 connection For a connection with 3 wires, the pinout in Fig. 8 is used: SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 16 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 17: Figure 8: Pinout Of M12 Connector With 3-Wire Pt1000 Connection
The cable and connector selected must be rated for at least the highest ambient temperature at which the sensor will be used. They must meet the following specifications: SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 17 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 18: Zener Diode Barriers
There are several different connection options, depending on whether or not the SRV/SRD has a built-in Pt1000, and if so, how the Pt1000 is connected (4 or 3 wire connection). The diagrams in section below show these options. -
Page 19: Table 5: Pt1000 Circuit(S) Zener Diode Barrier Specifications
Output current, Io 4 mA Output power, Po 9.4 mW SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 19 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. Rheonics confidential and proprietary information. -
Page 20: Installation Diagrams
A single 2-channel Zener diode barrier is required for the Pt1000 circuit. A single 2-channel Zener diode barrier is required for the coil circuit. The advantage of this circuit is that one less SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 20 Version 2.0, Updated: October 29, 2020... - Page 21 The appropriate method for bonding the sensor should be selected from among these options. SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 21 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics.
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Page 22: Figure 9: Variant 1 - Wiring Diagram With Pt1000 Installed, 4-Wire Pt1000 Connection
Intrinsically safe cable Hazardous Zone Figure 9: Variant 1 - Wiring diagram with Pt1000 installed, 4-wire Pt1000 connection SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 22 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland... -
Page 23: Figure 10: Variant 2 - Wiring Diagram With No Pt1000 Installed
Intrinsically safe cable Hazardous Zone Figure 10: Variant 2 - Wiring diagram with no Pt1000 installed SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 23 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland... -
Page 24: Figure 11: Variant 3 - Wiring Diagram With Pt1000 Installed, 3-Wire Pt1000 Connection
Intrinsically safe cable Hazardous Zone Figure 11: Variant 3 - Wiring diagram with Pt1000 installed, 3-wire Pt1000 connection SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 24 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland... -
Page 25: Equipotential Bonding
Zener diode barrier side it is connected to the grounding terminal of the barrier (Fig. 15 below) SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 25 Version 2.0, Updated: October 29, 2020... -
Page 26: Bonding To The Sensor
Equipotential bonding wire Fully assembled grounding tab is permanently installed; cannot be inadvertently dis-lodged Figure 12: Installation of grounding tab on SRV/SRD sensor The crown lock washer has an internal diameter that is slightly smaller than the outside diameter of the connector. When forced over the connector shell, the hardened spring fingers of the lock washer dig into the shell slightly, providing both a electrical bond and a solid mechanical connection. -
Page 27: Bonding Configurations
4mm cross section. This is shown schematically in the following figure: SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 27 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 28: Figure 13: Several Sensors Grounded To Common Grounding Point ("Star" Topology)
This arrangement is shown schematically in the following figure: SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 28 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 29: Figure 14: Individual Bonding Of Sensors To Their Zener Diode Barriers
Each sensor and/or Zener diode barrier is connected to a common grounding rail that runs from SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 29 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 30: Figure 15: Hybrid, Or Multi-Drop Bonding
In any event, it is the sole responsibility of the installer to ensure proper equipotential bonding of all elements of the system, to avoid creation of a potentially unsafe system due to improper bonding. SRV, SRD, SRV-FPC, SRD-FPC Installation and Intrinsic Safety Manual P. 30 Version 2.0, Updated: October 29, 2020 Rheonics GmbH, Klosterstrasse 19, 8406 Winterthur, Switzerland ©Rheonics. -
Page 31: Maintenance
7. Returning Equipment to the factory Instructions for Returning Your Instrument for Service The following information will help you return your instrument to Rheonics and will ensure that your order is processed promptly. To request details, contact your local Rheonics distributor or contact one of our offices directly. -
Page 32: Intrinsic Safety Certificates
Rheonics | Switzerland | U.S.A. 8. Intrinsic safety certificates ATEX Certificate IECEx Certificate For latest certificates of Rheonics products, solutions & electronics, visit: https://rheonics.com/resources/certificates/ 9. Revisions and approvals Version Nature of changes Approvals Date Original version S. Kumar, J. Goodbread 22.06.2020...
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