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RHEONICS DVM Operator's Manual

Inline hpht density and viscosity sensor
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DVM-OP-2501
Rheonics DVM Operator Manual
SENSOR OPERATOR MANUAL
Inline HPHT Density and Viscosity Sensor
Doc. ID: DVM-OP-2501

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Summary of Contents for RHEONICS DVM

  • Page 1 DVM-OP-2501 Rheonics DVM Operator Manual SENSOR OPERATOR MANUAL Inline HPHT Density and Viscosity Sensor Doc. ID: DVM-OP-2501...
  • 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.

  • Page 3: Table Of Contents

    Nomenclature ..........................5 Related Documentation ......................5 2 General Information ..............6 Scope of Delivery ......................... 6 About Rheonics DVM ........................7 Pressure compensation ....................... 8 Best practices..........................9 Serial number, probe markings, and certifications ..............10 3 Technical Specifications .............. 12 Sensor Specifications .........................
  • Page 4 Cleaning ............................. 24 Remove DV sensor from DV Module ..................26 O-Ring and Backup Ring Removal ....................28 O-Ring and Backup Ring Installation..................28 Mounting the DVM-HPHT ......................31 Calibration ..........................31 7 Use Cases ..................32 DVM in oven ..........................32 DVM in DTCM ..........................

  • Page 5: Before You Begin

    This manual provides information for operating Rheonics DVM density and viscosity sensor unit. This manual refers to external articles from Rheonics knowledge base, if any article link is not working, the user should refer to the main web page or contact Rheonics Support Team.

  • Page 6: General Information

    Customer should inspect the goods upon arrival. In case of damage or missing items, contact Rheonics Sales Team at info@rheonics.com. o The DVM sensor is composed of different parts as explained in the next section, user should be familiar with the correct terminology.

  • Page 7: About Rheonics Dvm

    Rheonics DVM unit has the DV Sensor inside that should be in contact with the fluid of interest. The DV Module works as a chamber that houses the DV Sensor and enables operations up to 2,000 bar (30,000 psi) and 200°C (400°F).

  • Page 8: Pressure Compensation

    Figure 3: DV Sensor and sealing rings inside DVM DVM module is delivered with the DV sensor already installed, but the client should be familiar with the removal and reinstallation steps for the DV sensor in case maintenance or cleaning requires it.

  • Page 9: Best Practices

    DVM inline readings of viscosity. This is expected and reasons are explained by Rheonics on web page and articles. Still, users do at times test the DVM unit in controlled environments to compare, verify, and even correlate readings.

  • Page 10: Serial Number, Probe Markings, And Certifications

    DVM-OP-2501 2.5 Serial number, probe markings, and certifications Rheonics DVM sensor units and electronics have specific markings on their bodies that make the parts unique and traceable. The part’s identifier is the Serial Number (S/N), which may be requested by Rheonics if the client contacts the Sales or Support Team about the sensor.
  • Page 11 Figure 5: Sensor electronics markings for variants E1, E2 and E3. Figure 6: Sensor electronics markings for variant E4. Rheonics offers Calibration and Material certificates for the DVM if requested during sensor order. Review all Rheonics certifications at https://rheonics.com/resources/certificates/. Page 11 of 35...

  • Page 12: Technical Specifications

    IP66 (SME-TRD, SME-TR) IP40 (SME-BOX) 3.2 Sensor Electronics Variants DVM sensor unit is composed of the electronics called Rheonics SME. Rheonics offers different SME variants. Variants differ in the housing and application use but have the same basic electronics unit inside.
  • Page 13 • O-Ring seal material: FKM • Protection rating: IP66 • Weight: 1.7 kg (3.8 lbs) Ports: 3 ports of ½”NPT • • Installation: Outdoors and indoors Figure 8. Rheonics SME-TR Page 13 of 35 ©Rheonics. Rheonics confidential and proprietary information.
  • Page 14 SME-BOX is a device designed for tabletop, desktop, or laboratory setups. It has a touch panel industrial PC integrated to run Rheonics software directly without using an additional PC. Using the SME-BOX with the DVM unit is a common solution for most applications where the DVM is required.

  • Page 15: Sensor Wiring

    3.3.1 DVM wiring with SME E1, E2 and E3 The figure below shows the typical connection of the DVM module with the SME electronics variants E1, E2 or E3. The physical connection is done between the M12 8-pin female A-coded connector (sensor cable) and the matching male connector (DVM module integrated cable).
  • Page 16 Rheonics SME-BOX (E4) is commonly used with the DVM unit for desktop or laboratory setups. All wiring is done on the SME-BOX and only connected to the DVM unit with an M12 female–male cable. For further wiring on this SME variant review the SME-E4 manual.

  • Page 17: Power Requirements

    All power connections are done on the sensor electronics. SME electronics have different variants as detailed in section 3.2. 3.4.1 Power requirements for SME E1, E2 and E3 When Rheonics DVM works with the electronics SME E1, E2 and E3 the power consumption is as follows: •...

  • Page 18: Dvm Installation Requirements

    The DVM unit is designed to be installed inline as a flow-through cell instrument. The DV sensor placed inside the DVM module measures the density and viscosity of the fluid it is in contact with. The two main requirements for installation are the following: Ensure the whole sensing area is in contact with the fluid of interest The DV sensor is the sensing element of the DVM unit.

  • Page 19: Communication Protocols

    (base) end of the sensor. • The DVM-HPHT will operate even with flow rates up to 1 l/min and with a flow orientation in either direction, subject to the previously mentioned caution about the effects of bubbles.

  • Page 20: 4-20Ma (C1 - Default)

    4.3 Modbus RTU (C2 - Default) Available for SME-E1, -E2 and -E3. Rheonics SME offers Modbus RTU over an RS485 interface. This protocol gives the user access to multiple parameters read by the sensor in real time. The data over Modbus is exchanged in the form of registers.

  • Page 21: Serial Usb (C3 - Default)

    Rheonics supports Bluetooth LTE 4.0 in the SME-TRD device only. By using this technology, the sensors can transmit measured data wirelessly. Rheonics provides various software for Windows, Linux, MacOS, iOS, and Android devices to connect the sensor over BLE. Contact Rheonics or visit Support Portal for more information.

  • Page 22: Profinet (C9)

    4.9 Profinet (C9) All Rheonics SME variants can be ordered with Profinet. Using Profinet, Rheonics Sensors can transmit real-time data at 100 Mbps in full duplex communication through the SME ethernet port, resulting in improved operational performance, precision, and system integration.

  • Page 23: Rcp Software

    5 RCP Software Rheonics DVM sensor unit is built to be a plug-and-play instrument. This means that the operator only needs to wire the DVM module to the electronics using the sensor cable, and power the sensor electronics to start measurements.

  • Page 24: Handling The Sensor

    DVM-OP-2501 6 Handling the sensor The DVM-HPHT is a stable, robust sensor unit that operates over a wide range of temperatures and pressures. All wetted parts of the sensor system are made of Titanium Grade 5, which resists attack by a wide variety of highly corrosive fluids.
  • Page 25 Standard method of DVM cleaning: Flow a solvent or cleaning fluid through the DVM module, followed by distilled water and then compressed air. DVM can then be run in air or vacuum to check the baseline frequency of the sensor to ensure it is clean. Readings in air should be zero for both density and viscosity.

  • Page 26: Remove Dv Sensor From Dv Module

    This will require approximately 20 N.m of torque (TOW-DVM is rated for this torque). It may be necessary to hold the DVM-HPHT in a bench vise to apply the necessary torque. Use soft jaw covers in the vise to avoid marring the DVM.
  • Page 27 Figure 20: Access to DV Sensor in DVM 3. Use the sensor insertion and removal tool (ERT-DVM) and while holding the black screw grip, screw the threaded rod into the hole in the back of DV sensor as far as it will go, finger tight.

  • Page 28: O-Ring And Backup Ring Removal

    Alternatively, a small tweezer can be used to expand or stretch the rings slightly to remove them. 6.4 O-Ring and Backup Ring Installation Tools used for the installation of the sealing rings on the DV sensor are listed below, these are included in the DVM delivery. ORT Tool ORT Base (Optional)
  • Page 29 Rheonics DVM Operator Manual DVM-OP-2501 1. Slide the Backup ring (BR-DVM) carefully and slowly over the DV sensor as shown below. You can expand the BUR slightly to make it easier. Ensure the O-ring groove (convex surface) on the BUR is facing upwards.
  • Page 30 Figure 28: ORT Tube mounted on DV sensor 5. Slide the O-ring OR-DVM over the ORT tube into the DV sensor O-ring groove. The BUR should already be in place and below the O-ring as shown next. ENSURE O-RING SITS CORRECTLY IN THE O-RING GROOVE ON THE BUR.

  • Page 31: Mounting The Dvm-Hpht

    TRD display, RCP software, or any external integration system (e.g. PLC). This “air check” is useful as a quick verification of the DVM calibration. The sensor does not use moving parts, so if readings in the air are zero, then the sensor is both clean and within calibration.

  • Page 32: Use Cases

    Figure 31: DVM for PVT systems 7.2 DVM in DTCM Rheonics DTCM is a Thermal Control Module designed for the DVM to ensure the most uniform temperature distribution across the DV sensor with fluid in static and flowing conditions. The DTCM eliminates the requirement of bulky and expensive thermal test chambers (also known as climate chambers) for temperature control.

  • Page 33: Dvm In Flow Loop

    DVM-OP-2501 Figure 32: DVM in DTCM Thermal Module 7.3 DVM in Flow Loop Rheonics DVM has a small form factor suitable for direct installation in flow lines. Some applications for the DVM in flow loops are: • Jet fuel, aerosols, adhesives, automotive fluids, coatings, colloids, dispersions •...

  • Page 34: Notes/Errata

    Rheonics DVM Operator Manual DVM-OP-2501 8 Notes/Errata: Page 34 of 35 ©Rheonics. Rheonics confidential and proprietary information.

  • Page 35: Revision And Approvals

    Rheonics DVM Operator Manual DVM-OP-2501 9 Revision and Approvals Version Nature of changes Approvals Date Original version S.K. 25.09.2024 Updates on cleaning and pressure P.P. 17.01.2025 compensation topics Page 35 of 35 ©Rheonics. Rheonics confidential and proprietary information.

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