Technical Information Deltabar S PMD70/75, FMD76/77/78 Technical Information Deltabar S PMD70/75, FMD76/77/78

  • View
    0

  • Download
    0

Embed Size (px)

Text of Technical Information Deltabar S PMD70/75, FMD76/77/78 Technical Information Deltabar S PMD70/75,...

  • TI00382P/00/EN/13.11 No. 71139774

    Technical Information

    Deltabar S PMD70/75, FMD76/77/78 Differential pressure measurement Differential pressure transmitter with ceramic and silicon sensors Overload-resistant and function-monitored; Communication via HART, PROFIBUS PA or FOUNDATION Fieldbus

    Application

    The Deltabar S differential pressure transmitter is used for the following measuring tasks: • Flow measurement (volume or mass flow) in

    conjunction with primary devices in gases, vapors and liquids

    • Level, volume or mass measurement in liquids • Differential pressure monitoring, e.g. of filters and

    pumps • International usage thanks to a wide range of approvals

    Your benefits

    • Very good reproducibility and long-term stability • High reference accuracy: up to ±0.075 %,

    as PLATINUM version: ±0.05 % • Turn down up to 100:1, higher on request • Used for flow and differential pressure monitoring

    up to SIL 3, certified to IEC 61508 by TÜV SÜD • HistoROM®/M-DAT memory module • Function-monitored from the measuring cell to the

    electronics • Continuous modularity for differential pressure,

    hydrostatics and pressure (Deltabar S, Deltapilot S, Cerabar S), e.g. – replaceable display – universal electronics

    • Quick commissioning with Quick Setup menu • Menu-guided operation • Extensive diagnostic functions

  • Deltabar S

    2 Endress+Hauser

    Table of contents

    Function and system design. . . . . . . . . . . . . . . . . . . . . 4 Device selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Level measurement (level, volume and mass) . . . . . . . . . . . . . . . . 7 Communication protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

    Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Explanation of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

    Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Signal range – 4 to 20 mA HART . . . . . . . . . . . . . . . . . . . . . . . . 10 Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Load – 4 to 20 mA HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Dead time, time constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Dynamic behavior, current output . . . . . . . . . . . . . . . . . . . . . . . 11 Dynamic behavior, HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Dynamic behavior, PROFIBUS PA . . . . . . . . . . . . . . . . . . . . . . . . 12 Dynamic behavior, FOUNDATION Fieldbus . . . . . . . . . . . . . . . . 12 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Data of the FOUNDATION Fieldbus interface . . . . . . . . . . . . . . . 13

    Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cable specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Residual ripple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Influence of power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

    Performance characteristics – general . . . . . . . . . . . . 19 Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Long-term stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Influence of the installation position . . . . . . . . . . . . . . . . . . . . . . 19 Vibration effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

    Performance characteristics – metal process isolating diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Reference accuracy – PMD75, FMD77, FMD78 . . . . . . . . . . . . . 20 Total performance – PMD75 . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Total error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Warm-up period – PMD75, FMD77, FMD78 . . . . . . . . . . . . . . . 21 Influence of the operating pressure on zero point and span – PMD75, FMD77, FMD78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Thermal change of the zero output and the output span – PMD75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    Performance characteristics – ceramic process isolating diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Reference accuracy – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . 22 Total performance – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . 22 Total error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

    Warm-up period – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . . 22 Influence of the operating pressure on zero point and span – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Thermal change of the zero output and the output span – PMD70, FMD76 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

    Operating conditions (Installation) . . . . . . . . . . . . . . 23 General installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . 23 Measuring arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Wall and pipe-mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 "Separate housing" version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Turning the housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Oxygen applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Ultrapure gas applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Applications with hydrogen . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

    Operating conditions (Environment) . . . . . . . . . . . . . 28 Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Overvoltage protection (optional) . . . . . . . . . . . . . . . . . . . . . . . . 28

    Operating conditions (Process) . . . . . . . . . . . . . . . . . 29 Process temperature limits (temperature at transmitter) . . . . . . . 29 Process temperature range, seals . . . . . . . . . . . . . . . . . . . . . . . . 29 Pressure specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

    Mechanical construction . . . . . . . . . . . . . . . . . . . . . . 31 Dimensions of T14 housing, optional display on the side . . . . . . . 31 Dimensions of T15 housing, optional display on the top . . . . . . . 31 Dimensions of T17 housing (hygienic), optional display on the side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Process connections PMD70 with ceramic process isolating diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Process connections PMD70 with ceramic process isolating diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Process connections PMD75 with metal process isolating diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Process connections PMD75 with metal process isolating diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Process connections PMD75 with metal process isolating diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Process connection FMD76 with ceramic process isolating diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Process connection FMD76 with ceramic process isolating diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Process connection FMD76 with ceramic process isolating diaphragms (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Process connections FMD77 with diaphragm seal, low-pressure side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Process connections FMD77 with diaphragm seal, high-pressure side . . . . . . . . . . . . . .