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Instruction Manual

OCM F

page 24

OCM F - rev. 05 / 06.04.2018

•

Low-impedance connection exists between '0 V DC' and GND analog output.

•

GND digital input, GND analog input and GND Ex are galvanically insulated from

each other as well as from '0 V DC'.

•

DC-powered units have 'DC +' and 'DC –' galvanically insulated from all other

clamps.

•

AC-powered units permit to tap the 24 V auxiliary voltage, which is also available

on '+24 Volt DC' (28) and '0 V DC' (39), from connections 'DC +'/'DC –' (clamps 4
and 5) too.
AC units therefore have a low-impedance connection between 'DC –' and GND an-
alog output via the '0 V DC' connection.
In contrast to the 24 V available on clamps 28 and 39, the auxiliary voltage on
'DC +'/'DC –' (clamps 4 and 5) is conducted through an internal extra common
mode filter and 'DC +' can be enabled/disabled by using the DC switch.

Fig. 14-3

Clamp wiring transmitter OCM F

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Содержание OCM F

Страница 1: ...F LOW p e r m an en t Instruction Manual Flow Measurement Transmitter OCM F Firmware Revision 4 00 Original manual German 16 02 2018 Rev 05 06 04 2018...

Страница 2: ...info nivus fr www nivus fr NIVUS U K Ltd Wedgewood Rugby Road Weston under Wetherley Royal Leamington Spa CV33 9BW Warwickshire Phone 44 0 8445 3328 83 nivusUK nivus com www nivus com NIVUS Middle Eas...

Страница 3: ...n Economic Area EEA this instruction manu al must be translated into the language of the country in which the device is to be used Should the translated text be unclear the original instruction manual...

Страница 4: ...ements 11 6 User s Responsibilities 12 7 Personnel requirements 12 Product specification 13 8 Overview 13 9 Device identification 13 10 Specifications 14 11 Configuration 16 11 1 Device Types 16 11 2...

Страница 5: ...23 2 Parameter Menu Level 52 23 2 1 Information on how to connect i Series sensors 55 23 3 Parameter Menu Velocity 56 23 4 Parameter Menu Digital Inputs 56 23 5 Parameter Menu Analog Output 57 23 6 Pa...

Страница 6: ...asurement Cell 96 28 Verification of external Level Measurement 97 29 Verification and Simulation of Input and Output Signals 97 30 Verification of Flow Velocity Measurement 98 Maintenance and Cleanin...

Страница 7: ...incorrectly understood information in this instruction In case of selling the instrument this instruction manual shall be provided to the purchaser since it is a part of the standard delivery The oper...

Страница 8: ...n Text Parameter or Menu Indicates a parameter or a menu that is selected or described Reference to document Refers to an accompanying documentation Table 1 Structural elements within the manual 1 3 A...

Страница 9: ...cates a possible danger with medium risk which may result in a life threatening situa tion or severe bodily injury if it is not avoided CAUTION Warnings in low risk or property damages Indicates a pos...

Страница 10: ...hat due to the operation in the waste water field the measurement system and cables may be loaded with dangerous disease germs Respective precautionary measures must be taken to avoid damage to one s...

Страница 11: ...t be considered as use in accordance with the requirements The manufacturer cannot be held responsible for any damage resulting from improper use The user alone bears any risk The permanent flow meter...

Страница 12: ...addition to this you must observe environmental requirements and local laws on the follow ing points Personnel safety accident prevention regulations Safety of work materials and tools safety equipme...

Страница 13: ...The name plate is fixed on top of the enclosure and contains the following Name and address of the manufacturer CE label Information on type and series serial no if available Year of manufacture the...

Страница 14: ...ing conditions Protection class I Overvoltage category II Pollution degree 2 Altitude AC unit for use in altitudes up to 3000 m above MSL At relay voltages 150 V the use is restricted to an altitude o...

Страница 15: ...channel Terminal no 46 49 UO 26 1 V IO 87 9 mA PO 574 mW linear characteristics CO 400 nF LO 5 mH Flow sensors Terminal no 50 54 UO 9 9 V IO 629 mA PO 6 2 W rectangular characteristics CO 5 F LO 0 15...

Страница 16: ...s 5 relays 3 mA outputs galv isolated 1 mA input galv isolated with 2 wire sensor supply or for external level measurement integrated 3 step controller Construction W0 Wall mount enclosure IP65 Power...

Страница 17: ...n Always store the instrument in its original packaging 11 5 Transport Do not expose the system to heavy shocks or vibrations Use the original packaging for transport 11 6 Return In case of a required...

Страница 18: ...built in piezo crystals with a slope of 45 The crystal surfaces are arranged parallel to the slope of the flow velocity sensor One of the crystals continuously op erates as ultrasonic transmitter the...

Страница 19: ...t be in accordance to IEC 227 or IEC 245 The device protection rating is IP65 The max imum allowed switching voltage on the relay contacts must not exceed 250 V According to Ex protection it must be c...

Страница 20: ...protection foil has to be removed immediately after the assembly UV radiation If the view door protection foil has been exposed to direct solar radiation for a long period it cannot be removed easily...

Страница 21: ...ials To discharge your body and to stay free of static electricity wear an antistatic wristband grounded through a cable Only touch components that are sensitive to electric charges in an antistatic w...

Страница 22: ...shocks In terms of electric connection please note the device configuration since unspecified inputs outputs as well as power supply connections are not connected Warranty of a correct clamp connecti...

Страница 23: ...mitter observe the terminal clamp specifications listed below Power supply terminal 1 5 Spring cage terminal wire up to 2 5 mm strand up to 1 5 mm Screwdriver for pushing in max blade width 3 5 mm Rel...

Страница 24: ...C powered units permit to tap the 24 V auxiliary voltage which is also available on 24 Volt DC 28 and 0 V DC 39 from connections DC DC clamps 4 and 5 too AC units therefore have a low impedance connec...

Страница 25: ...ld between the termination blocks Use only the two cable connections of the Ex connection block The sensor cable has to be connected to the transmitter at the termination block using con nectors with...

Страница 26: ...as connection socket for cable extension at the same time Please observe not to exceed the maximum cable length of 250 m 820 ft between KDA sensor and transmitter by taking the maximum permissible res...

Страница 27: ...sors hence must not be connected to the intrinsically safe terminal clamps Ex ia of the transmitter This would cancel the protection rating of the intrinsically safe terminal clamps 47 46 of the trans...

Страница 28: ...ge DC voltage A DC unit can be operated exclusively with 24 V 15 DC voltage An AC unit can be operated exclusively with 100 240 V 10 15 AC voltage When operated with alternating current the direct cur...

Страница 29: ...230 V AC and or EnerPro 24 V for 24 V DC for the mA out inputs the type DataPro 2x1 24 V 24 V The flow velocity sensors are internally protected against overvoltage In case of an expected high hazard...

Страница 30: ...Instruction Manual OCM F page 30 OCM F rev 05 06 04 2018 Fig 14 15 Overvoltage protection for power supply and analog in outputs...

Страница 31: ...Installation and Connection OCM F rev 05 06 04 2018 page 31 Fig 14 16 Overvoltage protection for KDA velocity sensor Non Ex version Fig 14 17 Overvoltage protection for KDA velocity sensor Ex version...

Страница 32: ...be connected to the digital inputs 1 3 of the measure ment transmitter Please note to select gold plated contacts in order to ensure contact relia bility Connect a signal relay between switches and me...

Страница 33: ...find a detailed description of measurement and control sections in the Installation Instruction for Correlation and Doppler Sensors manual 1 Hand slide valve 2 Ultrasonic sensor i Series 3 Regulation...

Страница 34: ...Instruction Manual OCM F page 34 OCM F rev 05 06 04 2018 14 8 3 Connection for Controller Operation Fig 14 19 Wiring diagram for controller operation...

Страница 35: ...e of driving the slide valves via the digital inputs always use all the three messages Activating one message only may result in disturbed regulator operation The regulator can be operated with extern...

Страница 36: ...installation connection or the setting of parameters contact our hotline 49 0 7262 9191 955 To put the entire system into operation additionally consult the instruction manuals of the fol lowing acce...

Страница 37: ...ton keypad is sealed com pletely by means of a plastic membrane with indelible marking 1 Control buttons 2 Abort button 3 Confirmation button Fig 17 1 Operator panel 18 Display The OCM F has a large b...

Страница 38: ...most extensive menu for initial start up Parameter setting of dimensions of the measurement Parameter setting of sensors Parameter setting of analog and digital outputs Controller settings Damping set...

Страница 39: ...bmenu e g PAR measurement place name Select preset values e g units m cm l s m s etc Decrease values Set decimal point left Press once to toggle between indication mode and overview menu main menu Jum...

Страница 40: ...to re enter the PIN After correctly entering the PIN the modified parameters are accepted and the unit will restart The OCM F is ready for operation again after approx 20 30 seconds Options at the end...

Страница 41: ...he desired language and confirm with Enter The language can be changed later at any time by using the EXTRA Language menu On start up the screen below comes up 1 Device version see chapter 11 1 Device...

Страница 42: ...d days of operation When selected first the current date and the first three saved days are visible Browse to other days by using the key down The oldest day total will be overwritten as soon as the 2...

Страница 43: ...ate the latest error message Browse through error messages using the keys left and right Pressing the ENTER key will delete all error messages one by one The maximum number of stored error mes sages i...

Страница 44: ...units language system time as well as the dis play itself The following submenus are available Fig 22 1 EXTRA Submenus Due to reasons of limited space it is not possible to indicate the entire menu o...

Страница 45: ...ing on the unit system selected there are various units available Fig 22 3 Selecting the units system and units Display format Choose the display format decimal position to indicate flow rates velocit...

Страница 46: ...es at the next power on System time In order to perform various memory functions the unit includes an internal system clock The clock settings can be modified if required different time zones summer t...

Страница 47: ...arbitrarily selectable max six digits Tip For your own safety we recommend to share the system PIN only with authorised persons Make a note of the system PIN and store it in a safe place Service Code...

Страница 48: ...scribed individually on the following pages Fig 23 1 Parameter menu Scroll through the menu using the up and down keys 23 1 Parameter Menu Measurement Place This menu is one of the most important basi...

Страница 49: ...of the measurement place The right or left arrow keys can be used to move the cursor even after the cursor reaches the right or left margin of the table Pressing the right or left arrow keys once aga...

Страница 50: ...its Please observe indicated units Choosing Custom shape will indicate a table of 32 possible breakpoints on the display As described above enter the relations between height width or height area and...

Страница 51: ...ive values are allowed to be set These values are going to be considered as absolute values and therefore have positive as well as negative effects Vmin Low flow volumes in applications with large pro...

Страница 52: ...el Fig 23 10 Selection level measurement This menu defines any parameter regarding level measurement The start screen depicted below as well as the parameters to be set may vary depending on the senso...

Страница 53: ...ossible as well 1 Sedimentation or soiling Fig 23 13 Sensor type 1 Pressure Sensor type No Constant level 02 Use this point to set parameters for constantly full filled pipes and channels Such applica...

Страница 54: ...nsor type 3 2 wire probe Sensor type No Ext sensor Ex 04 Level measurement by external Ex 2 wire sensor supplied by OCM F e g a pressure probe type NivuBar Plus or echo sounder type NivuCompact Connec...

Страница 55: ...ble if sensor type no 3 or 4 is selected Default setting 4 m 13 1 ft Offset This entry will move the zero point of the external sensor Only visible if sensor type no 3 or 4 is selected Default setting...

Страница 56: ...owever This is the only case which requires setting negative here 23 4 Parameter Menu Digital Inputs Fig 23 18 Digital inputs submenu Select from digital inputs 1 4 using the left or right arrow keys...

Страница 57: ...to 3 characters These names will be indicated in the main screen and in overview menu see over view menu Set the names as described in chapter 23 1 Parameter Menu Measurement Place Ensure reliable co...

Страница 58: ...mode Constant current The analog output can be set to output a con stant current which is independent from any readings For constant current enter the desired initial current max 21 mA see Fig 23 23 1...

Страница 59: ...analog signal 4 mA 100 l s 20 mA 100 l s Backwater will cause the analog signal to decrease positive flow will cause the signal to increase Value at 20 mA Enter the measurement value at 20 mA Error m...

Страница 60: ...error should occur see also Fig 23 26 The following functions are available Hold old value holds the last value prior to error Constant 0 0 mA Constant 3 5 mA Constant 4 0 mA Constant 21 0 mA Fig 23 2...

Страница 61: ...rgise immediately after the parameter has been set and will de energise as soon as the according value has been reached ON point Defines the ON point for the selected limit value This value is require...

Страница 62: ...second limit value to be set Relay mode ON point OFF point ON delay OFF delay Name See Flow limit relay Vel limit relay Relay will energise if a velocity limit value to be set has been ex ceeded and...

Страница 63: ...duration set will be output and the internal counter will be set to 0 again The course of events will repeat again subse quently Neg total impulse Relay will output volume proportional impulses if th...

Страница 64: ...ater application for op timum performance It enables to execute slide valve and torque monitoring as well as quick close control or automatic flush functions The digital inputs Switch open Switch clos...

Страница 65: ...hould be approx 10 of the set point value Cycle The processing interval of the controller Short intervals will accelerate the control be haviour but are going to result in oscillation of the control c...

Страница 66: ...ter than the cycle time P factor The proportionality factor indicates to which degree the regulating time is going to be affected in case of a deviation w from set point w The higher the proportionali...

Страница 67: ...e unit set point deviation tolerance Time quick close Time quick close is the time the regulating unit needs to move from open condition to the position it has whilst being in normal regulator mode Le...

Страница 68: ...time Min pulse time Max pulse time P factor Level quick close Flow quick close Time quick close Time of pos closed and Time delay See Internal set point 23 8 Parameter menu Setup Parameter CAUTION Dat...

Страница 69: ...ify the stability of the flow velocity meas urement The time specified here will hold the latest valid measured flow velocity value in order to avoid short term measurement failures The value can be i...

Страница 70: ...and for error diagnosis as well as to transmit data to USB stick Fig 24 1 I O menu 24 1 I O submenu Digital Inputs This menu enables to view the digital status of the transmitter s input terminal It i...

Страница 71: ...menu allows access to all measurement values saved internally Fig 24 5 Submenu Data storage USB Info Number of measurement data sets including the recording time Erase Erase internal readings memory S...

Страница 72: ...after the time of the last data readout are transmitted to USB stick in csv format The measurement data can be easily opened and processed using Excel File name DTA_DATE_TIME csv Save parameter All Th...

Страница 73: ...g 24 6 Screen measure data 24 6 I O submenu v Sensor Info This menu is to indicate various information regarding the sensor and is mainly for service purposes 1 Creation date of sensor firmware 2 Calc...

Страница 74: ...measured The higher the quality the more reliable the indicated flow velocity reading There are no limit values for the quality Q since the shape of the frequency distribution has to be considered add...

Страница 75: ...ndicated Fig 24 10 External level selection 24 9 I O submenu Control unit This menu is visible only if the controller has been enabled in the PAR menu Having the controller enabled will bring up the s...

Страница 76: ...these keys to manually drive the slide valve 1 Currently measured flow rate 2 Time how long activated relay remains energised manually s 3 Status of both relays 4 Status of three digital inputs Fig 24...

Страница 77: ...ing the sensor After the ruler or similar has been held into the medium the respective reading is entered as reference value If this procedure is performed in flowing water the turbulence emerging on...

Страница 78: ...no longer possible as soon as the level falls below a certain level called h_crit The level h_crit is pre determined by the construction of the sensor as well as the measurement method Default setting...

Страница 79: ...ickler or manual auto disch curve not active Fig 25 7 Automatic discharge curve Observe to avoid backwater Please avoid backwater up to levels of 0 012 m if auto discharge curve is active v crit deter...

Страница 80: ...nter the Manning Strickler coefficient Fig 25 9 Manning Strickler v crit determination Table Manning Strickler coefficients For detailed information see table Manning Strickler coefficients on page 10...

Страница 81: ...locking measures Simulations may only be carried out by NIVUS expert personnel or by specialist companies trained by NIVUS in cooperation with qualified operator personnel Always pay attention to safe...

Страница 82: ...on requires to enter the system PIN once again to make sure that simulations can be carried out by authorised personnel only Select the desired relays to simulate by using the up or down arrow keys Us...

Страница 83: ...alue directly The flow value which has been calculated by means of the simulated readings will be indicated on the bottom line of the screen Relays which might have been set will switch and programmed...

Страница 84: ...Diameter 0 225 3r Egg Radius 0 225 Rectangular Profile height 1 Profile width 1 U Profile Profile height 1 Diameter 0 225 Trapezoid Profile height 1 Profile width down 1 Profile width up 2 Max channel...

Страница 85: ...h close DI2 switch close DI3 switch off Analog output Function A1 Not active x Flow Level Velocity Temperature Signal quality Constant current Span 0 20 mA 4 20 mA x Value at 0 4 mA 1 m s Value at 20...

Страница 86: ...message Error mask Name R1 Relay mode only with relay function active Normally open x Normally closed ON point only with relay function active Off point only with relay function active ON delay only w...

Страница 87: ...roller Internal set point only with active controller Min variation only with active con troller Cycle only with active controller Slidevalve runtime only with active controller Min pulse time only wi...

Страница 88: ...y with active controller 30 Time of Pos closed only with active controller 10 Time delay only with active con troller 0 Setup pa rameter System reset Service mode Service code Damping 20 Stability 60...

Страница 89: ...puts Relays Data storage USB Info Erase USB stick Store NivuSoft Store CSV Save para meter Load para meter Measuredata v Sensor Info v Histogram External set point only with active controller ext set...

Страница 90: ...5 06 04 2018 Calibration menu CAL Default settings CAL Level Calibration Velocity Min velocity 4 0000 Max velocity 4 0000 h v calibration v crit determination Manual x Manning Strickler h crit 0 75 v...

Страница 91: ...Info 4 Unit system Metric x UK english US english Units Flow rate Veloc Level Total Display format Flow rate Veloc Level Total Language German x English French Polish Display Contrast 50 System time...

Страница 92: ...heck level sensor for horizontal installation Check sensor function in menu I O v Histogram In case of external level measurement check function and signal transmission cables clamp connections short...

Страница 93: ...rruption or loose connection Check sensor for mechanical damage Unstable measurement values Hydraulically unsuitable measurement place Check quality of measurement place by using the graphic flow prof...

Страница 94: ...ds Check level signal echo profile flow velocity sig nal cable parameters and temperature in I O menu Check if sensor is installed on a vibration free place Check sensor installation towards flow dire...

Страница 95: ...rogramming Output enabled Check if functions have been assigned to correct output channel Check output range 0 or 4 20 mA Check output span Check offset Check output signal in I O menu Following syste...

Страница 96: ...Measurement Cell and 28 Verification of external Level Meas urement For initial assessment mainly the I O menu is helpful Refer to chapter Troubleshooting starting at page 92 to locate the most promi...

Страница 97: ...eds to measure the filling level in the channel with a yardstick see Fig 27 1 to adjust the zero point on the level transmitter if required Then compare output signal as well as measurement span of th...

Страница 98: ...nstallation position of sensor Please note that without a working level measurement it is not possible to measure flow ve locities and hence the flow cannot be computed If the flow velocity measuremen...

Страница 99: ...are unaffected NIVUS recommends having the entire measurement system inspected by the NIVUS cus tomer service once per year Depending on the area of use the maintenance intervals however may vary Ext...

Страница 100: ...This these document s is are part of the standard sensor delivery 33 Dismantling Disposal Improper disposal may be harmful to the environment Always dispose equipment components and packaging material...

Страница 101: ...e measurement cell for connection to pressure compensation element ZUB0 DAE Pipe mounting system ZUB0 RMS2 ZUB0 RMS3 ZUB0 RMS4 For temporary installation of KDA wedge sensors in pipe lines DN200 DN800...

Страница 102: ...Planed wood well joint 85 90 0 4 0 6 Concrete good formwork high cement contents 80 0 8 Rough Non planed wood Concrete pipes 75 1 5 Hard burned bricks carefully joint Well manufactured ashlar facing C...

Страница 103: ...conception 19 Enclosure 14 ESD 19 21 Ex approval 15 Ex protection approval 11 F Flow velocity detection 18 Frequency histogram 98 Front panel 21 22 Functional principle 18 G General reset 68 Germ con...

Страница 104: ...81 Spare parts 17 Storage temperature 14 Storing 17 Symbols 9 T Terminal clamp housing 13 Terminal housing 21 22 Translation 3 Transmitter connection 19 22 Transmitter installation 21 Transport 17 Tr...

Страница 105: ...Approvals and Certificates OCM F rev 05 06 04 2018 page 105 Approvals and Certificates...

Страница 106: ...Instruction Manual OCM F page 106 OCM F rev 05 06 04 2018...

Страница 107: ...Approvals and Certificates OCM F rev 05 06 04 2018 page 107...

Страница 108: ...Instruction Manual OCM F page 108 OCM F rev 05 06 04 2018...

Страница 109: ...Approvals and Certificates OCM F rev 05 06 04 2018 page 109...

Страница 110: ...Instruction Manual OCM F page 110 OCM F rev 05 06 04 2018...

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