Siemens 7ML19985AB01 Manuel D’Utilisation

Page de 112
Instruction Manual November 2005
OCM III
open channel

Table des matière des caractéristiques pour Siemens 7ML19985AB01

  • Page 1 Instruction Manual November 2005 open channel OCM III
  • Page 2Safety Guidelines: Warning notices must be observed to ensure personal safety as well as that of others, and to protect...
  • Page 3TABLE OF CONTENTS TITLE PAGE ABOUT THIS ... About This Manual 7 About the OCM-3 7 SPECIFICATIONS 9 Programmer 10...
  • Page 4 START UP General 21 Keypad 21 Legend 22 Initial Start Up 22 Fundamental Checks 25 OPERATION Memory 27 Security...
  • Page 5 ‘D’ PARAMETER LISTING 39 ‘F’ PARAMETER LISTING 41 ‘P’ PARAMETER LISTING 43 ‘U’ PARAMETERS FOR P3 PRIMARY ELEMENT 51...
  • Page 67ML19985AB01 OCM III 6
  • Page 7ABOUT THIS ... ABOUT THIS MANUAL Although the OCM-3 is very ‘approachable’ due its dialogue capabilities and intuitive operation, the...
  • Page 8The OCM-3 converts the head measurement into flow rate, but also provides a velocity sensor input for applications where a...
  • Page 9SPECIFICATIONS Power: » dc supply: » 9 to 30 V DC, 8 W max and / or » ac supply:...
  • Page 10 » isolation: 300 V ac continuous » relays: » 3 alarm/control relays » 1 form ’C’ SPDT contact per...
  • Page 11Battery: » 9 V (ANSI / NEDA 1604, PP3 or equivalent) or 3V lithium battery TRANSDUCER Model: » XRS-5* Refer...
  • Page 12Auxiliary Input: » Belden 8760 or equivalent 24 V Output: » Belden 8760 COMMUNICATION SOFTWARE Milltronics Utilities Software on standard...
  • Page 13INSTALLATION Installation shall only be performed by qualified personnel and in accordance with local governing regulations. INSTALLING THE OCM-3 The...
  • Page 14OCM-3 LAYOUT board A display board board B All field wiring must have insulation suitable for at least 250 V....
  • Page 15SYSTEM DIAGRAM Milltronics transducer, OCM-3 see Specifications Milltronics TS-2, temperature sensor mA output customer device relay output customer alarm, pump...
  • Page 16INSTALLING THE TRANSDUCER Max cable run 183 m (600 ft) of RG-62U or equivalent. Cable must be run in a...
  • Page 17mA OUTPUT isolated 0 or 4 to 20 mA output (P26) into 1 KΩ load maximum. Wiring should conform to...
  • Page 18SYNCHRONIZATION Where two to a maximum of twelve transducers will be sharing a common conduit the OCM-3s should be synchronized....
  • Page 19POWER CONNECTIONS The OCM-3 power supply accepts 100, 115, 200 or 230 V ac per switch SW1 (board B) selection...
  • Page 20INSTALLING THE MEMORY BACK-UP BATTERY Disconnect power before installing or replacing the battery. Do not install the memory back-up battery...
  • Page 21START UP GENERAL For the initial start up, it is advisable to use the programmer for programming the OCM-3. The...
  • Page 22LEGEND Press the associated programmer key: Display shown on OCM-3: Programmer key: INITIAL START UP After installation procedures have been...
  • Page 23 8 2 8 factory set security code 2 7 1 2.71828 must be entered P0 language if the wrong...
  • Page 24If data logging is desired, the time and date must be set. 4 F4 24-hr. time e.g. 1141 1 1...
  • Page 25FUNDAMENTAL CHECKS For accurate determination of flowrate, accurate head measurement is essential. Check the following and correct if necessary. »...
  • Page 267ML19985AB01 OCM III 26
  • Page 27OPERATION Upon power up, the transducer is fired periodically as set by P36. A long interval between measurements may be...
  • Page 28FLOW CALCULATION Absolute vs. ratiometric The OCM-3 can be programmed to use either of two methods (P4) for calculating flow...
  • Page 29Flow Rate Field flow rate units, P5 Totalizer Field total multiplier, P32 Relay / No Echo Field relay identification under...
  • Page 30RELAYS Three on board multipurpose relays are provided by the OCM-3. P15, 18 and 21 set the respective functions for...
  • Page 31The mA function can be overridden for test purposes by setting the desired mA value into F3. When the value...
  • Page 32Under low flow conditions, a cut-off head (P45) can be entered to avoid totalizing flows occurring at or below the...
  • Page 33Viewing the data log The day totalizer (F14) does not use the master totalizer multiplier (P32). It is possible that...
  • Page 34BLANKING Blanking is used to ignore the zone in front of the transducer where ringing or other false echo is...
  • Page 35The daily total will be increased proportional to the amount of time the day was lengthened. Adjusting the Date If...
  • Page 36FLOW VELOCITY INPUT In some applications, the flow calculation for the chosen primary element requires a velocity input. In this...
  • Page 37The 0% and 100% limits of the auxiliary input must be scaled using parameters P43 and P44. » select P43...
  • Page 38‘D’ PARAMETER LISTING Refer to ‘Operation’ for details. D0 head D1 flow rate D2 short total * D3 maximum flow...
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  • Page 40‘F’ PARAMETER LISTING Refer to ‘Operation’ for details. F0 enter security code F1 emulation mode* F2 run mode * F3...
  • Page 417ML19985AB01 OCM III 42
  • Page 42‘P’ PARAMETER LISTING Refer to ‘Operation’ for details. P0 language 0 = english 1 = french 2 = italian 3...
  • Page 43 13 = Rectangular Area x Velocity 14 = Trapezoidal Area x Velocity 15 = Modified Trapezoidal Area x Velocity...
  • Page 44P13 display damping 0 = off 1 = low 2 = med 3 = high P14 display lighting 0 =...
  • Page 45 24 = energize on low Aux. volts 25 = de-energize on high Aux. volts 26 = energize on high...
  • Page 46P27 mA damping (secs) P28 mA options (emulator tracking) 0 = don’t track emulator 1 = track emulator P29 fail-safe...
  • Page 47P34 printer mode 0 = never print 1 = interval to be in minutes 2 = interval to be in...
  • Page 48P39 data logging rate fixed 0 = 1 min 3 = 30 1=5 4 = 60 2 = 15 5...
  • Page 49P42 head determination 0 = by OCM-3 1 = by auxiliary device P43 volts in for zero head P44 head...
  • Page 50‘U’ PARAMETERS FOR P3 PRIMARY ELEMENT The number of ‘U’ parameters required varies according to the primary element chosen (P3)...
  • Page 51 17 Circular Area x Velocity 18 Gull Wing Area x Velocity 19 Egg-shaped Area x Velocity 20 Universal Area...
  • Page 52SIMPLE EXPONENTIAL DEVICES, P3 = 0 ‘U’ parameters required * U0 = exponent U1 = k factor (P4 = 0...
  • Page 53SIMPLE EXPONENTIAL DEVICES, P3 = 0 TYPICAL SHARP-CRESTED WEIRS transducer * minimum 3 x h max Typical Weir Profiles V...
  • Page 54SIMPLE EXPONENTIAL DEVICES, P3 = 0 KHAFAGI VENTURI 15 cm (6") plan transducer * 0 head side front For rated...
  • Page 55SIMPLE EXPONENTIAL DEVICES, P3 = 0 TYPICAL PARSHALL FLUME C 2/3 C plan transducer * 0 head front side For...
  • Page 56SIMPLE EXPONENTIAL DEVICES, P3 = 0 TYPICAL LEOPOLD LAGCO throat Q plan transducer * converging diverging point of measurement 0...
  • Page 57BS-3680 Rectangular Flume, P3 = 1 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = approach width B U4...
  • Page 58BS-3680 RECTANGULAR FLUME 3 to 4 x hmax L transducer * 0 head h p * The transducer must be...
  • Page 59BS-3680 Round Nose Horizontal Crest Weir, P3 = 2 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = crest...
  • Page 60BS-3680 ROUND NOSE HORIZONTAL CREST WEIR transducer * 3 to 4 x hmax * The transducer must be above the...
  • Page 61BS-3680 TRAPEZOIDAL FLUME, P3 = 3 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = approach width B U5...
  • Page 62BS-3680 TRAPEZOIDAL FLUME b p end B transducer * plan 3 to 4 x hmax L h side p *...
  • Page 63BS-3680 U-Flume, P3 = 4 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = approach diameter Da U4 =...
  • Page 64BS-3680 U-FLUME 3 to 4 x hmax L D Da transducer * 0 head h p * The transducer must...
  • Page 65BS-3680 FINITE CREST WEIR, P3 = 5 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = crest width b...
  • Page 66BS-3680 FINITE CREST WEIR transducer * 3 to 4 x hmax * The transducer must be above the maximum head...
  • Page 67BS-3680 THIN PLATE RECTANGULAR WEIR, P3 = 6 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = approach width...
  • Page 68BS-3680 THIN PLATE RECTANGULAR WEIR transducer * 4 to 5 x hmax * The transducer must be above the maximum...
  • Page 69BS-3680 THIN PLATE V-NOTCH WEIR, P3 = 7 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = notch angle...
  • Page 70BS-3680 THIN PLATE V-NOTCH WEIR transducer * 4 to 5 x hmax * The transducer must be above the maximum...
  • Page 71RECTANGULAR WEIR (CONTRACTED), P3 = 8 ‘U’ parameters required * U0 = crest width b * obtain from manufacturer’s specifications....
  • Page 72RECTANGULAR WEIR - CONTRACTED transducer * 4 to 5 x hmax * The transducer must be above the maximum head...
  • Page 73ROUND PIPE, P3 = 9 (based on the Manning Formula) ‘U’ parameters required * U0 = pipe inside diameter D...
  • Page 74ROUND PIPE transducer * ** h * This dimension should be at least 15 cm (6") shorter than the blanking...
  • Page 75PALMER-BOWLUS FLUME *, P3 = 10 ‘U’ parameters required ** U0 = maximum flume width, hmax * typically those manufactured...
  • Page 76PALMER-BOWLUS FLUME D / 2, point of measurement * transducer ** 0 head D = pipe or sewer diameter *...
  • Page 77H-FLUME *, P3 = 11 ‘U’ parameters required * U0 = maximum listed head, hmax * as developed by the...
  • Page 78H-FLUME transducer * point of measurement plan front side For rated flows under free flow conditions, the head is measured...
  • Page 79UNIVERSAL HEAD vs FLOW, P3 = 12 The flow curve is characterized by entering the head (Aeven) and flow (Aodd)...
  • Page 80UNIVERSAL HEAD vs FLOW e.g. typical compound weir Parameters U0 = 11 A0 = 0 head, point 1 A12 =...
  • Page 81RECTANGULAR AREA X VELOCITY, P3 = 13 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = channel width B...
  • Page 82RECTANGULAR AREA X VELOCITY transducer * * The transducer must be above the maximum head by at least the blanking...
  • Page 83TRAPEZOIDAL AREA X VELOCITY, P3 = 14 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = channel top width...
  • Page 84TRAPEZOIDAL AREA X VELOCITY transducer * * The transducer must be above the maximum head by at least the blanking...
  • Page 85MODIFIED TRAPEZOIDAL AREA X VELOCITY, P3 = 15 ‘U’ parameters listed * ‘U’ parameters calculated ** U0 = channel top...
  • Page 86MODIFIED TRAPEZOIDAL AREA X VELOCITY transducer * * The transducer must be above the maximum head by at least the...
  • Page 87U-CHANNEL AREA X VELOCITY, P3 = 16 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = base diameter D...
  • Page 88U-CHANNEL AREA x VELOCITY transducer * * The transducer must be above the maximum head by at least the blanking...
  • Page 89CIRCULAR AREA X VELOCITY, P3 = 17 ‘U’ parameters listed * ‘U’ parameters calculated ** U0 = conduit diameter ID...
  • Page 90CIRCULAR AREA X VELOCITY transducer * ** h * This dimension should be at least 15 cm (6") shorter than...
  • Page 91GULL-WING AREA X VELOCITY, P3 = 18 ‘U’ parameters required * ‘U’ parameters calculated ** U0 = channel base width...
  • Page 92GULL WING AREA X VELOCITY transducer * V * The transducer must be above the maximum head by at least...
  • Page 93EGG-SHAPED AREA X VELOCITY, P3 = 19 ‘U’ parameters listed * ‘U’ parameters calculated ** U0 = top radius R...
  • Page 94EGG-SHAPED AREA X VELOCITY transducer * standpipe ** * This dimension should be at least 15 cm (6") shorter than...
  • Page 95UNIVERSAL AREA X VELOCITY, P3 = 20 Arbitrary area is typically used when the primary element and/or its flow do...
  • Page 96UNIVERSAL AREA X VELOCITY A odd Area Head A even U0 = 8 A0 = 0 head, point 1 A1...
  • Page 977ML19985AB01 OCM III 98
  • Page 98 MAINTENANCE The OCM-3 requires very little maintenance due to its solid-state circuitry. However, a program of periodic preventative maintenance...
  • Page 99 ERROR CODES Error Code Listing 1 number underflow 2 number overflow 3 divide error 4 bad argument 5 invalid...
  • Page 100 COMMUNICATIONS The OCM-3 provides serial communication either through Milltronics proprietary bipolar current loop or industry standard RS-232. Communication can...
  • Page 101Milltronics provides a standard Utilities software package, for convenient communication between an IBM PC compatible computer and the OCM-3. In...
  • Page 102Interconnection Bipolar Current CURRENT BIPOLAR O/P I/O S S H + - R R H T T T L X...
  • Page 103Timed Print Out The OCM-3 can be programmed to periodically print out OCM data (P34/35). A typical print out will...
  • Page 104Milltronics Utilities Software Disk The Milltronics Utilities Software expands the human interface capabilities of the OCM-3 as compared to that...
  • Page 105The OCM-3 Utilities software provided by Milltronics uses XON/XOFF to ensure communication reliability. The software is written to be executed...
  • Page 106Custom Programming and Third Party Communication Program Users who wish to write their own software to communicate with the OCM-3...
  • Page 107The following is a list of commands for the secondary parser: Command Response /a#/ the content of a#, where: a...
  • Page 108/j/ returns a code indicating the relay status code relay 1 2 3 0 0 0 0 1 1 0...
  • Page 109Modem Communication Communication with the OCM-3 over an answer back telephone modem is relatively straight forward. For modem communication over...
  • Page 110Considerations - set the ’cold start’ (F12) default baud to 1200 by removing jumper J1 on board A. - set...
  • Page 111Ending Communication - type W to break OCM-3 communication with the modem*. The computer screen will display a flashing message...
  • Page 112 www.siemens.com/processautomation Siemens Milltronics Process Instruments Inc. Siemens Milltronics Process Instruments Inc. 2005 1954Technology Drive, P.O. Box 4225 Subject to...