Endress+Hauser HART Deltabar PMD78B Operating Instructions Manual
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Endress+Hauser HART Deltabar PMD78B Operating Instructions Manual

Differential pressure measurement
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BA02015P/00/EN/04.21
71547518
2021-11-30
Valid as of version
01.00.zz (Device firmware)
Products
Operating Instructions
Deltabar PMD78B
Differential pressure measurement
HART
Solutions
Services

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Summary of Contents for Endress+Hauser HART Deltabar PMD78B

  • Page 1 Products Solutions Services BA02015P/00/EN/04.21 71547518 2021-11-30 Valid as of version 01.00.zz (Device firmware) Operating Instructions Deltabar PMD78B Differential pressure measurement HART...
  • Page 2 The manufacturer reserves the right to modify technical data without prior notice. The Endress+Hauser sales organization will supply you with current information and updates to these instructions. Endress+Hauser...

  • Page 3: Table Of Contents

    15.2 Environment ......78 15.3 Process ......81 Endress+Hauser...
  • Page 4 Deltabar PMD78B HART Index ........87 Endress+Hauser...

  • Page 5: About This Document

    This symbol contains information on procedures and other facts which do not result in personal injury. 1.2.2 Electrical symbols Ground connection: Terminal for connection to the grounding system. 1.2.3 Symbols for certain types of information Permitted: Procedures, processes or actions that are permitted. Forbidden: Procedures, processes or actions that are forbidden. Endress+Hauser...
  • Page 6 Result of an individual step: 1.2.4 Symbols in graphics Item numbers: 1, 2, 3 ... Series of steps: Views: A, B, C, ... 1.2.5 Symbols on the device Safety instructions: Observe the safety instructions contained in the associated Operating Instructions. Endress+Hauser...

  • Page 7: List Of Abbreviations

    • Upper range limit (URL) = 16 bar (240 psi) • Calibrated/adjusted span: 0 to 8 bar (0 to 120 psi) • Lower range value (LRV) = 0 bar (0 psi) • Upper range value (URV) = 8 bar (120 psi) |URV LRV| Endress+Hauser...

  • Page 8: Documentation

    Registered trademark of the FieldComm Group, Austin, Texas, USA Bluetooth® The Bluetooth® wordmark and logos are registered trademarks of Bluetooth SIG, Inc. and any use of these trademarks by Endress+Hauser is licensed. Other trademarks and trade names are those of their respective owners. Apple®...

  • Page 9: Basic Safety Instructions

    The manufacturer is not liable for damage caused by improper or non-intended use. Verification for borderline cases: ‣ For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance in verifying the corrosion resistance of fluid-wetted materials, but does not accept any warranty or liability.

  • Page 10: Product Safety

    IT security Endress+Hauser can only provide a warranty if the device is installed and used as described in the Operating Instructions. The device is equipped with security mechanisms to protect it against any inadvertent changes to the device settings. IT security measures in line with operators' security standards and designed to provide additional protection for the device and device data transfer must be implemented by the operators themselves.

  • Page 11: Product Description

    A second fill fluid transfers the pressure to a side of the measuring element where a resistance bridge is located (semiconductor technology). The differential pressure-dependent change in the bridge output voltage is measured and processed further. Endress+Hauser...
  • Page 12 ρ g A0038339 Height (level) Δp Differential pressure ρ Density of the medium Gravitation constant Diaphragm seal on both sides with capillary – ∆ ρ g A0038345 Height (level) Δp Differential pressure ρ Density of the medium Gravitation constant Endress+Hauser...
  • Page 13 • Has a wide range of uses, e.g.: • For level measurement in vessels with pressure overlay • For foam formation • In vessels with agitators or screen fittings • For liquid gases • For standard level measurement Endress+Hauser...

  • Page 14: Incoming Acceptance And Product

    • Do the data on the nameplate correspond to the order specifications and the delivery note? • Is the documentation available? • If required (see nameplate): are the Safety Instructions (XA) provided? If you can answer "no" to any of these questions, please contact Endress+Hauser. 4.1.1 Scope of delivery The scope of delivery comprises: •...

  • Page 15: Storage And Transport

    Transport the measuring device to the measuring point in the original packaging. WARNING Incorrect transport! Capillaries may become damaged, and there is a risk of injury! ‣ Do not use capillaries as a carrying aid for the diaphragm seals. Endress+Hauser...

  • Page 16: Mounting

    • To ensure optimal readability of the local display, adjust the housing and local display • Endress+Hauser offers a mounting bracket to mount the device on pipes or walls • Use flushing rings for flanges, flange seals and pancake seals if buildup or clogging can be expected at the process membrane •...
  • Page 17 If the pressure transmitter is mounted above the diaphragm seal, do not exceed the maximum height difference h1. The height difference h1 is shown in the Applicator "Sizing Diaphragm Seal". Endress+Hauser...
  • Page 18 (empty container). Cleaning instructions Endress+Hauser provides flushing rings as an accessory to enable the process membrane to be cleaned without removing the transmitter from the process. For more information: contact the Endress+Hauser sales office.
  • Page 19 Diaphragm seal on one side or both sides with temperature isolator A0038658 Design HP side: Transmitter horizontal, temperature isolator long Design HP side: Transmitter vertical, temperature isolator long Design HP side: Transmitter horizontal, temperature isolator short Design HP side: Transmitter vertical, temperature isolator short Endress+Hauser...

  • Page 20: Mounting The Device

    Level measurement in an open vessel, diaphragm seal on one side with temperature isolator max. min. – A0038702 Device The negative side is open to atmospheric pressure • Mount the device directly on the vessel • The negative side is open to atmospheric pressure Endress+Hauser...
  • Page 21 Ensure strain relief to prevent the capillary from bending (bending radius ≥ 100 mm (3.94 in)). Mount the device below the lower diaphragm seal Level measurement is only guaranteed between the upper edge of the lower diaphragm seal and the lower edge of the upper diaphragm seal. Endress+Hauser...
  • Page 22 Ensure strain relief to prevent the capillary from bending (bending radius ≥ 100 mm (3.94 in)). • Mount diaphragm seals with capillaries on pipes at the top or side • In vacuum applications, mount the device below the measuring point Endress+Hauser...
  • Page 23 The device may only be insulated up to a certain height. The maximum permitted insulation height applies to an insulation material with a thermal conductivity ≤ 0.04 W/ (m x K) and to the maximum permitted ambient temperature and process temperature. The data were determined under the application "quiescent air". Endress+Hauser...
  • Page 24 85 °C (185 °F) 85 °C (185 °F) –50 °C (–58 °F) 50 °C (122 °F) –35 °C (–31 °F) –70 °C (–94 °F) 55 °C (131 °F) 300 °C (572 °F) 85 °C (185 °F) 85 °C (185 °F) Endress+Hauser...
  • Page 25 5.2.5 Seal for flange mounting NOTICE Seal pressing against the process isolating diaphragm! Incorrect measurement results! ‣ Ensure that the seal is not touching the process isolating diaphragm. A0017743 Process isolating diaphragm Seal 5.2.6 Wall and pipe mounting A0031326 Endress+Hauser...
  • Page 26 The mounting bracket is included in the delivery if you order the device with a separate housing. When mounting on a pipe, tighten the nuts on the bracket uniformly with a torque of at least 5 Nm (3.69 lbf ft). Endress+Hauser...
  • Page 27 5 Nm (3.69 lbf ft). Mount the cable with a bending radius (r) ≥ 120 mm (4.72 in). 5.2.10 Turning the display module 4 0.7 Nm A0038224 Endress+Hauser...
  • Page 28 The housing can be rotated up to 380° by loosening the locking screw. Your benefits • Easy mounting due to optimum alignment of housing • Easily accessible device operation • Optimum readability of the onsite display (optional) A0043807 Locking screw Endress+Hauser...

  • Page 29: Post-Mounting Check

     Is the device protected against precipitation and direct sunlight?  Are the securing screws and cover lock tightened securely?  Does the measuring device meet the measuring point specifications? For example: • Process temperature • Process pressure • Ambient temperature • Measuring range Endress+Hauser...

  • Page 30: Electrical Connection

    The power unit must be tested to ensure it meets safety requirements (e.g. PELV, SELV, Class 2). Depending on the supply voltage and the current consumption, background lighting is switched on or off. For the dependency, see the diagram: Endress+Hauser...
  • Page 31 Power supply multimeter The HART communication resistor of 250 Ω in the signal line is always necessary in the case of a low-impedance power supply. Take the voltage drop into consideration: Maximum 6 V for a 250 Ω communication resistor Endress+Hauser...
  • Page 32 Overvoltage protection Devices without optional overvoltage protection Equipment from Endress+Hauser fulfills the requirements of the product standard IEC / DIN EN 61326-1 (Table 2 Industrial Environment). Depending on the type of port (DC power supply, input/output port) different testing levels...
  • Page 33 If necessary, create a drip loop or use a weather protection cover. 6.2.9 Available device plugs In the case of devices with a plug, it is not necessary to open the housing for connection purposes. Use the enclosed seals to prevent the penetration of moisture into the device. Endress+Hauser...

  • Page 34: Ensuring The Degree Of Protection

    • Plug HAN7D, 90 deg. IP65 NEMA Type 4X • Plug M12 When housing is closed and connecting cable is plugged in: IP66/67, NEMA Type 4X When housing is open or connecting cable is not plugged in: IP20, NEMA Type 1 Endress+Hauser...

  • Page 35: Post-Connection Check

    After wiring the device, perform the following checks:  Is the potential matching line connected?  Is the terminal assignment correct?  Are the cable glands and dummy plugs leak-tight?  Are the fieldbus connectors properly secured?  Are the covers screwed down correctly? Endress+Hauser...

  • Page 36: Operation Options

    • Operation via Bluetooth® wireless technology (with optional Bluetooth device display) with Smartblue app or FieldXpert, DeviceCare • Operation via operating tool (Endress+Hauser FieldCare/DeviceCare or AMS, PDM, etc.) • Operation via handheld, Fieldcare, DeviceCare, AMS and PDM Operating keys and DIP switches on the electronic...

  • Page 37: Access To The Operating Menu Via The Local Display

    HART communication (symbol appears if HART communication is active) Square root extraction (appears if a square root extraction of the measured value is output) Measured value output in % The following graphics are examples. The display depends on the display settings. Endress+Hauser...
  • Page 38 Prerequisite • Device with Bluetooth display • Smartphone or tablet with Endress+Hauser SmartBlue app or PC with DeviceCare from version 1.07.00 or FieldXpert SMT70 The connection has a range of up to 25 m (82 ft). The range can vary depending on environmental conditions such as attachments, walls or ceilings.

  • Page 39: Access To The Operating Menu Via The Operating Tool

    The range of functions is different however. 7.5.1 Connecting the operating tool Service interface A0039148 Computer with FieldCare/DeviceCare operating tool Commubox FXA291 Service interface (CDI) of the device (= Endress+Hauser Common Data Interface) At least 22 mA is required to update (flash) the device firmware. Endress+Hauser...

  • Page 40: Historom

    FieldCare Function scope FDT-based plant asset management tool from Endress+Hauser. FieldCare can configure all smart field devices in a system and helps you manage them. By using the status information, FieldCare is also a simple but effective way of checking their status and condition.

  • Page 41: System Integration

    The following codes are assigned to the device variables at the factory: Device variable Device variable code Pressure Scaled variable Sensor temperature Sensor pressure Electronics temperature Terminal current Terminal voltage Median of pressure signal Noise of pressure signal Percent of range Endress+Hauser...
  • Page 42 HART ® command 9 or 8.2.2 System units The following table describes the supported pressure measuring units. Index number Description Hart unit code mbar torr mmH2O mmH2O (4°C) mH2O mH2O (4°C) ftH2O inH2O inH2O (4°C) mmHg inHg gf/cm² kgf/cm² Endress+Hauser...

  • Page 43: Commissioning

    • If Bluetooth is ordered, then Bluetooth is switched on Function check Perform a function check before putting the measuring point into operation: • "Post-installation check" checklist (see the "Installation" section) • "Post-connection check" checklist (see the "Electrical connection" section) Endress+Hauser...

  • Page 44: Establishing A Connection Via Fieldcare And Devicecare

    A0039148 Computer with FieldCare/DeviceCare operating tool Commubox FXA291 Service interface (CDI) of the device (= Endress+Hauser Common Data Interface) At least 22 mA is required to update (flash) the device firmware. Configuring the device address via software See the HART address parameter.

  • Page 45: Setting The Operating Language

    1, 5 Drain valves 2, 4 Inlet valves Equalization valve 6, 7 Vent valves on device 8, 9 Shutoff valves 1. Close 3. 2. Fill the measuring system with medium.  Open A, B, 2, 4. Fluid flows in. Endress+Hauser...
  • Page 46  Liquids: Open 6 and 7 until the system (piping, valves and side flanges) is completely filled with medium. Gases: Open 6 and 7 until the system (piping, valves and side flanges) is completely filled with gas and free from condensation. Close 6 and 7. Check the adjustment and perform again if necessary. Endress+Hauser...
  • Page 47 1. Fill the vessel to above the lower tapping point. 2. Fill the measuring system with medium.  Open A (shutoff valve). 3. Vent device.  Open 6 until the system (piping, valve and side flange) is completely filled with medium. Endress+Hauser...
  • Page 48 3. Vent high-pressure side (empty low-pressure side if necessary).  Open 2 and 4 (introduce fluid on high-pressure side). Open 6 until the system (piping, valve and side flange) is completely filled with medium. Open 7 until the system (piping, valve and side flange) is completely empty. Endress+Hauser...
  • Page 49 1. Device installed in desired position and no pressure applied. 2. Press the "Zero" and "Span" keys simultaneously for at least 3 s. 3. When the LED lights up briefly, the pressure present has been accepted for position adjustment. Endress+Hauser...
  • Page 50 2. Press the "Span" key briefly in order to display the upper range value. 3. Press the "Zero" and "Span" keys simultaneously in order to display the calibration offset. Resetting the device ‣ Press and hold the "Zero" and "Span" keys simultaneously for at least 12 s. Endress+Hauser...
  • Page 51 In such situations, it is advisable to reset the device to the factory default settings. DeviceCare is available for download at www.software-products.endress.com. You must register in the Endress+Hauser software portal to download the product.
  • Page 52 1. Enter the pressure value for the 4 mA current via the Lower range value output parameter (50 mbar (0.75 psi)). 2. Enter the pressure value for the 20 mA current via the Upper range value output parameter (450 mbar (6.75 psi)) Result: The measuring range is set to 4 to 20 mA. Endress+Hauser...
  • Page 53 1 parameter and Scaled variable value 2 parameter are set with this setting. This setting has no effect on the current output. Low flow cut off (square root extraction) With the Low cutoff parameter, positive zero return can be configured in the lower measuring range. Endress+Hauser...

  • Page 54: Simulation" Submenu

    DIP switch for locking and unlocking the device DIP switch 1 on the electronic insert is used to lock or unlock operation. If operation is locked via the DIP switch, you can only unlock operation again via the DIP switch. Endress+Hauser...
  • Page 55 Once the password is entered, you can enable the configuration of the device as an Operator option by entering the password. The user role then changes to Maintenance option. The password can be deleted if necessary in the User management submenu: System → User management Endress+Hauser...

  • Page 56: Operation

    Navigation "Application" menu → Measured values 10.3 Adapting the device to process conditions The following are available for this purpose: • Basic settings using the Guidance menu • Advanced settings using the Diagnostics menu, Application menu and System menu Endress+Hauser...
  • Page 57  The value entered causes a change in the slope or a parallel shift of the current calibration curve. A0045038 Pressure display Pressure input Not possible with display. Deviations caused by physical factors are also known as "Sensor drift". Endress+Hauser...

  • Page 58: Diagnostics And Troubleshooting

    Remedial action: Connect Commubox correctly Communication via CDI interface not working Possible cause: Wrong setting of the COM port on the computer Remedial action: Check the setting of the COM port on the computer and correct it if necessary Endress+Hauser...
  • Page 59 Remedial action: The standard user name is "admin" and the password is the device serial number indicated on the device nameplate (only if the password was not changed by the user beforehand) If the password has been forgotten, contact Endress+Hauser Service (www.addresses.endress.com) Connection via SmartBlue not possible •...
  • Page 60 2. Check that the device concerned is functioning correctly. Replace the device if the digital value does not correspond to the expected pressure value. 3. Switch on simulation and check the current output. Replace the main electronics if the current output does not correspond to the simulated value. Endress+Hauser...
  • Page 61 Failure behavior current output Defines which current the output assumes in the case of an • Min. error. • Max. Min: < 3.6 mA Max: >21.5 mA Failure current Enter current output value in alarm condition. 21.5 to 23 mA Endress+Hauser...

  • Page 62: Diagnostic Information On Local Display

    The device is being operated: • Outside of its technical specifications (e.g. during startup or a cleaning) • Outside of the configuration performed by the user (e.g. level outside configured span) "Maintenance required (M)" option Maintenance required. The measured value remains valid. Endress+Hauser...
  • Page 63 If two or more diagnostic events occur simultaneously, only the diagnostic message with the highest priority is shown. "Active diagnostics" parameter Key  Opens the message about the remedial measures. Key  Acknowledge warnings. Key  Back to operating menu. Endress+Hauser...

  • Page 64: Diagnostic Event In The Operating Tool

    Queued diagnostic messages can also be displayed in the Active diagnostics parameter. Menu path: Diagnostics → Active diagnostics 11.6 Diagnostic list All the diagnostic messages that are currently queued can be displayed in the Diagnostic list submenu. Navigation path Diagnostics → Diagnostic list Endress+Hauser...
  • Page 65 Sensor initialization 1. Restart device Alarm faulty 2. Contact service Sensor error 1. Restart the device Alarm 2. Contact Endress+Hauser Service Sensor temperature 1. Check process temperature Alarm 2. Check ambient temperature Sensor incompatible error 1. Restart device Alarm 2. Contact service...
  • Page 66 Min signal noise detected 1. Check impulse line Warning 2. Check valve position 3. Check process Out of range signal 1. Process Information. No action Warning detected 2. Rebuild baseline 3. Adapt signal range thresholds Diagnostic behavior can be changed. Endress+Hauser...

  • Page 67: Event Logbook

    Configuration changed I11074 Device verification active I1110 Write protection switch changed I11104 Loop diagnostics I1151 History reset I1154 Reset terminal voltage min/max If operating via FieldCare, the event list can be displayed with the "Event List/HistoROM" function in FieldCare. Endress+Hauser...
  • Page 68 Reset terminal voltage min/max I1155 Reset electronics temperature I1157 Memory error event list I1256 Display: access status changed I1264 Safety sequence aborted I1335 Firmware changed I1397 Fieldbus: access status changed I1398 CDI: access status changed I1440 Main electronic module changed Endress+Hauser...

  • Page 69: Resetting The Device

    For details see the "Description of device parameters" document. 11.10 Firmware history The firmware version can explicitly be ordered via the product structure. This makes it possible to ensure the compatibility of the firmware version with an existing or planned system integration. 11.10.1 Version 01.00.zz Original software Endress+Hauser...

  • Page 70: Maintenance

    12.1.1 Flushing rings The use of flushing rings allows the process membrane to be cleaned without removing the device from the process. For more information: contact the Endress+Hauser sales office. 12.1.2 Exterior cleaning Notes on cleaning • The cleaning agents used should not corrode the surfaces and the seals •...

  • Page 71: Repair

    General notes 13.1.1 Repair concept Under the Endress+Hauser repair concept, devices have a modular design and repairs can be carried out by Endress+Hauser Service or by properly trained customers. Spare parts are grouped into logical kits with the associated replacement instructions.
  • Page 72 It is not necessary to perform a new device calibration after replacing the display or transmitter electronics. The parameters are saved in the HistoROM. After replacing the transmitter electronics, remove the HistoROM and insert it into the new replacement part. Endress+Hauser...

  • Page 73: Return

    The device must be returned in the event of a factory calibration, or if the wrong device has been ordered or delivered. As an ISO-certified company and also due to legal regulations, Endress+Hauser is obliged to follow certain procedures when handling any returned products that have been in contact with medium.

  • Page 74: Accessories

    The IP protection classes are only maintained if the dummy cap is used or the cable is connected. 14.1.3 Weld-in accessory For details, refer to TI00426F/00/EN "Weld-in adapters, process adapters and flanges". 14.2 Device Viewer All the spare parts for the device, along with the order code, are listed in the Device Viewer (www.endress.com/deviceviewer). Endress+Hauser...

  • Page 75: Technical Data

    A damping affects all outputs (output signal, display). Damping can be enabled as follows: • Via the onsite display, Bluetooth, handheld terminal or PC with operating program, continuous from 0 to 999 seconds • Factory setting: 1 s Ex connection data See the separate technical documentation (Safety Instructions (XA)) on www.endress.com/download. Endress+Hauser...
  • Page 76 Visibility depends on order options or device settings • Noise of pressure signal option and Median of pressure signal option Visible if Heartbeat Technology ordered • Percent of range • Loop current The loop current is the output current set by the applied pressure. Endress+Hauser...
  • Page 77 • Burst mode • Additional transmitter status • Device locking Wireless HART data • Minimum starting voltage: 10.5 V • Start-up current: 3.6 mA • Start-up time: <5 s • Minimum operating voltage: 10.5 V • Multidrop current: 4 mA Endress+Hauser...

  • Page 78: Environment

    Up to 5 000 m (16 404 ft) above sea level. Climate class Class 4K4H (air temperature: –20 to +55 °C (–4 to +131 °F), relative humidity: 4 to 100 %) satisfied as per DIN EN 60721-3-4. Condensation is possible. Endress+Hauser...
  • Page 79 Atmosphere Operation in very corrosive environment For corrosive environments (e.g. maritime environment / coastal areas), Endress+Hauser recommends the use of a PVC-coated capillary armor or a PTFE capillary armor for capillaries and the stainless steel housing. The transmitter can be additionally protected by a special coating (Technical Special Product (TSP)).
  • Page 80 Use either a device with a temperature isolator or with a capillary in applications with very high temperatures. If vibrations additionally occur in the application, Endress+Hauser recommends the use of a device with a capillary. If a device with a temperature isolator or capillary is used, the device must be mounted with a mounting bracket.

  • Page 81: Process

    Detailed calculations, e.g. for temperature ranges, negative pressure and temperature ranges, are done separately in the Applicator "Sizing Diaphragm Seal". A0038925 Endress+Hauser...
  • Page 82 • Depends on diaphragm seal and fill fluid: –70 °C (–94 °F) up to +400 °C (+752 °F) • A4 screws of process connection, threaded separator: T –60 °C (–76 °F) • Observe the maximum gauge pressure and maximum temperature Endress+Hauser...
  • Page 83 If a PTFE coating has been selected, a conventional process membrane is always delivered. Diaphragm seal capillary Process temperature depending on the ambient temperature. armor • 316L: No restrictions • PTFE: No restrictions • PVC: See the following diagram Endress+Hauser...
  • Page 84 The device may only be insulated up to a certain height. The maximum permitted insulation height applies to an insulation material with a thermal conductivity ≤ 0.04 W/ (m x K) and to the maximum permitted ambient temperature and process temperature. The data were determined under the application "quiescent air". Endress+Hauser...
  • Page 85 85 °C (185 °F) 85 °C (185 °F) –50 °C (–58 °F) 50 °C (122 °F) –35 °C (–31 °F) –70 °C (–94 °F) 55 °C (131 °F) 300 °C (572 °F) 85 °C (185 °F) 85 °C (185 °F) Endress+Hauser...
  • Page 86 Process temperature: max. +400 °C (+752 °F), depending on the diaphragm seal fill fluid used Ultrapure gas applications Endress+Hauser also offers devices for special applications, such as for ultrapure gas, that are cleaned of oil and grease. No special restrictions regarding the process conditions apply to these devices.
  • Page 87 Intended use ....... . 9 Local display see Diagnostic message Endress+Hauser...
  • Page 88 *71547518* 71547518 www.addresses.endress.com...

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