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POSTBERG+Co measuringSYSTEM MA-Di Operating Instructions Manual

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measuringSYSTEM
MA-Di
OPERATING INSTRUCTIONS
COMPRESSED AIR AT ITS BEST

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Summary of Contents for POSTBERG+Co measuringSYSTEM MA-Di

  • Page 1 measuringSYSTEM MA-Di OPERATING INSTRUCTIONS COMPRESSED AIR AT ITS BEST...
  • Page 2 Postberg + Co. offers an allround range around the energy-efficient use of compressed air in industry From efficiency consulting to customized product development of measuring and sensor technology – also customer-specific as OEM – up to professional support on all service and outsourcing levels – Postberg + Co. offers you compressed air efficiency packaged under one roof.

  • Page 3: Table Of Contents

    Welcome to Postberg + Co. Your product: MA-Di CONTENTS General Incoming goods inspection, transport and storage Safety precautions Intended use Installation, start-up and operation Disclaimer Functions and applications | Scope of supplies Electrical sensor Direct-i Measuring armature of brass PB+CO®lock-blind plug ISO Calibration Points Technical Data Thermal mass flow sensor...

  • Page 4: General

    1 General GENERAL Incoming goods inspection, transport and storage • Please make sure that the packaging is undamaged! Please notify any damage on the packaging to your supplier. Hold on to the damaged packaging until clarification is achieved. • Please make sure that the content is undamaged! Please notify any damage on the packaging to your supplier.

  • Page 5: Safety Precautions

    2 Safety precautions MA-Di SAFETY PRECAUTIONS Please read these Operating Instructions before you start up the measuringSYSTEM. These Operating Instructions must be kept at a place that is accessible to all users at any time. Intended use The measuringSYSTEM is exclusively intended for use in piping line systems for operating compressed air, unless its permission for the use with other gases is expressly stated on the calibration certificate.

  • Page 6: Installation, Start-Up And Operation

    2 Safety precautions Installation, start-up and operation The measuringSYSTEM was manufactured and tested for reliable operation and left the factory in a fault-free safe condition. As user, you shall be responsible for compliance with all applicable safety regulations, e.g.: • Installation regulations •...

  • Page 7: Disclaimer

    2 Safety precautions MA-Di Disclaimer In general, the manufacturer and his vicarious agents shall only be liable in the case of intent or gross negligence. The scope of liability shall be limited to the value of the relevant order placed to the manufacturer. The manufacturer shall not be liable for damage that occurs due to failure to follow the safety instructions, non-compliance with these Operating Instructions or the operating conditions.

  • Page 8: Functions And Applications | Scope Of Supplies

    3 Functions and applications | Scope of supplies FUNCTIONS AND APPLICATIONS | SCOPE OF SUPPLIES Components List Sensor unit Direct-i 3.1 | p. 9 Measuring armature brass 3.2 | p. 11 PB+CO®lock - blind plug 3.3 | p. 11 Furthermore, the following is included in the scope of supplies: •...

  • Page 9: Electrical Sensor Direct-I

    3 Functions and applications | Scope of supplies MA-Di Electrical sensor Direct-i With the aid of the calorimetric measuring principle, the sensor detects the standard volume flow of the operational compressed air. To this end, the standard volume flow is calculated on the basis of DIN ISO 2533 (1013.25 mbar, 15 °C and 0 % relative humidity) if not indicated otherwise in the calibration certificate.
  • Page 10 3 Functions and applications | Scope of supplies Sensor output 1 • Switching signal as limit value for flow rate or flow speed, hysteresis or window function as normally open or normally closed contact. • Quantity control by preselection meter. Sensor output 2 •...

  • Page 11: Measuring Armature Of Brass

    3 Functions and applications | Scope of supplies MA-Di Measuring armature of brass The measuring armature patented by Postberg + Co. is equipped with an integrated safety ball valve that accommodates the sensor unit. As a result, it enables the shut-off of the pressure line at any time and an easy sensor replacement.

  • Page 12: Iso Calibration Points

    4 Technical data ISO Calibration Points The MA-Di measuringSYSTEM has been calibrated to your nominal width before delivery. At least six measuring points with defined nominal width, standard temperature and pressure are parameterized, started up on the test stand and checked regarding the standard volume. The calibration certificate according to ISO/IEC 17025 is included in the scope of supplies.

  • Page 13: Accessories

    4 Technical data MA-Di Electrical connection M12 x 1-plug, capacity up to 250 mA, short-circuit proof Voltage supply 19 … 30 VDC, current input < 100 mA Delay before start Due to its small size, the sensor has a very small surface for attack. Consequently, the pressure loss can be neglected (typically 1 mbar).
  • Page 14 4 Technical data 4.2.2 Connecting line with potential isolation As accessory, a connecting line with a potential isolation integrated in the plug is available. The line has a length of 5 m and serves for galvanic iso- lation between sensor output and connected electronic system. The line will be delivered with an appropriate connection plug for the mass flow sensor on one side and open line ends on the other side.

  • Page 15: Installation

    5 Installation MA-Di INSTALLATION Identifying the installation position For the installation position, it is necessary to observe the specified technical data ( Section 4.1 | p. 12). At site the following points must be observed: • Fluid at the installation position must be non-condensing, the measurement location can, for this reason, only be arranged behind a suitable compressed air drier that provides a suitable pressure dew point.

  • Page 16: Installation Position

    5 Installation Ø D Ø d Inch ½ “ 55.5 ½ " ¾ “ 72.5 42.5 57.5 ¾ " 1“ 1 " 1 ¼ “ 61.5 1¼ " 1 ½ “ 73.5 1½ " 2 “ 89.5 2 " Installation position The sensor must not be installed as shown in the crossed-out representation in the schematic diagram below.

  • Page 17: Required Measuring Distance

    5 Installation MA-Di 3: Installation position horizontal, flow horizontal to the rear, sensing element to the left (heated sensing element upwards) 4: Installation position vertical, flow direction horizontal to the right, sensing element upwards 5: Installation position horizontal, flow direction vertical upwards, sensing element to the rear 6: Installation position horizontal, flow horizontal to the rear, sensing element to the right (heated sensing element downwards, problems...

  • Page 18: Flow Direction

    5 Installation Flow direction For the installation of the measuring armature, the flow direction must be observed. This is represented by an arrow on the measuring armature. The arrow shows the direction of the fluid flow in the piping line. Installation of the sensor in the measuring armature If the PB+CO®lock-blind plug is mounted, firstly make sure that the measuring armature has been closed.

  • Page 19: Sensor Exchange

    5 Installation MA-Di 7. Set the lever of the measuring armature now to the position OPEN-MEASURE to take measurements. Sensor exchange The withdrawal of the mounted sensor may be required for maintenance, cleaning and calibration purposes. If the sensor is changed, firstly make sure that the measuring armature has been closed.

  • Page 20: Electrical Connections

    5 Installation Electrical connections Disconnect the voltage supply before making the connections. The device may exclusively be installed by a trained electrician. Follow the national and international regulations for the instal- lation of electrical systems. The voltage supply system shall be designed according to EN50178, SELV, PELV.
  • Page 21 5 Installation MA-Di 5.8.1.1 1 x impulse output, 1 x analog output (delivery condition) The output OUT1 is used as pnp signal output (impulse) and the output OUT2 as analog output. The sensors are delivered in this condition. Pin = designation (core colour) = BN (brown) = WH (white) = BU (blue)

  • Page 22: Operation

    6 Operation The potential-free impulse output OUT1 is specified with this connecting line as follows: Line type LiYCY Length Switching capacity 500 mA Max. switching voltage 36 V Min. switching voltage Switching transition resistance 0.21 Ω Insulation voltage 5.3 kV Protected against polarity reversal OPERATION Thermal mass flow sensor...
  • Page 23 6 Operation MA-Di Type Description ① Indicator LEDs LED on = set display unit Current flowrate (Nl/min) ⑧ Current flowrate (Nm³/h) Current flow velocity (Nm/s) Current consumption rate since last reset (Nm³) Consumption rate before last reset (Nm³) flashing Current consumption rate since last reset in 10 (Nm³) (Values >...

  • Page 24: Operating Modes

    6 Operation Operating modes 6.2.1 Run mode After switching on the supply voltage, the device is in the run mode. It performs its measuring and evaluation function and provides output signals according to the set parameters. The display shows the actual measured values, the yellow LEDs provide signals on the switching conditions of the outputs.

  • Page 25: Menu

    7 Menu MA-Di MENU Menu Overview is the Set key and In the menu overview Mode key on the sensor. Nl/min Nm/s °C (Nm³)* = volume flow rate before last reset The parameter values in the form of numbers are factory settings or arbitrary examples.

  • Page 26: Menu Explanation

    7 Menu Menu explanation SP1 / rP1 Switching point or reset point Upper / lower limit value for flow rate ImPS Impulse valence ImPR Impulse repetition yes = active = Impulse output or nO = not active = Function preselection counter Output function for OUT1 (flow rate or consumption rate): - Switching signal for limit values: Hysteresis function Hno or Hnc or window function Fno or Fnc...

  • Page 27: Programming + Parameter Setting

    8 Programming + Parameter setting MA-Di SEL2 Standard measured variable for evaluation through OUT2: - Limit value signal or analog signal for flow rate - Limit value signal or analog signal for temperature rEF.P Standard pressure which the measured and display values for flow rate refer to rEF.T Standard temperature which the measured and display values for...
  • Page 28 8 Programming + Parameter setting * Reduce value: Let the display run up to the maximum setting. After that, it starts again from the minimum setting. Adjust the display unit Uni before you determine the values for the parameters SPx, rPx, ASP and AEP. As a result, you avoid rounding errors in the internal conversion to other units and exactly obtain the desired values.

  • Page 29: Parameter Setting Scenarios

    8 Programming + Parameter setting MA-Di Parameter setting scenarios 8.2.1 Settings for flow rate monitoring 8.2.1.1 Configure limit value monitoring with OUT1 Select and define measuring unit ( 8.2.4 | p. 33). Select and set switching function. Hno = Hysteresis function / normally open Hnc = Hysteresis function / normally closed Fno = Window function / normally open Fnc = Window function / normally closed...

  • Page 30: Settings For Consumption Rate Monitoring

    8 Programming + Parameter setting 8.2.1.3 Configure analog value for flow rate Select and define measuring unit ( 8.2.4 | p. 33). SEL2 Select and FLOW set. Select and set function. I = flow rate proportional current signal (4…20 mA) Select and set value where the minimum value is provided.
  • Page 31 8 Programming + Parameter setting MA-Di 8.2.2.3 Configure program-controlled counter reset Select, continue with a) or b) a) Manually reset counter Press until rES.T is displayed, then briefly press Mode / Enter. b) Enter value for time-controlled reset Press until the desired value is displayed (intervals from 1 hour to 8 weeks), then briefly press Mode / Enter Press until rES.T is displayed, then briefly press Mode / Enter.

  • Page 32: Settings For Temperature Monitoring

    8 Programming + Parameter setting 8.2.3 Settings for temperature monitoring 8.2.3.1 Configure limit value monitoring with OUT2 SEL2 Select and TEMP set. Select and set switching function. Hno = Hysteresis function / normally open Hnc = Hysteresis function / normally closed Fno = Window function / normally open Fnc = Window function / normally closed Select and set value where output switches.

  • Page 33: User Settings (Optional)

    8 Programming + Parameter setting MA-Di 8.2.4 User settings (optional) 8.2.4.1 Define standard measuring unit for flow rate Select and define measuring unit. Lmin = Flow rate in standard litre / minute nm3h = Flow rate in standard cubic metre / hour nmS = Flow velocity in standard metre / second.
  • Page 34 8 Programming + Parameter setting 8.2.4.4 Set error behaviour of outputs FOU1 Select and define value On = Output 1 is switched ON in the case of a fault. OFF = Output 1 is switched OFF in the case of a fault. >...

  • Page 35: Service Functions

    8 Programming + Parameter setting MA-Di 8.2.4.5 Set standard pressure which the measuring and display values for the flow rate refer to rEF.P Select and set desired standard pressure. Setting range: 950...1050 hPa in steps of 1 hPa. 8.2.4.6 Set standard temperature which the measuring and display values for the flow rate refer to rEF.T Select and set desired standard temperature.

  • Page 36: Impulse Setting

    8 Programming + Parameter setting 8.2.5.2 Reset all parameters to factory setting After the reset to factory setting, the value of the memory goes to zero. NOTES Select. Press and hold until [----] is displayed. Shortly press Mode / Enter. It is reasonable to note the own settings in this table before executing the function.
  • Page 37 8 Programming + Parameter setting MA-Di - Set OU1 to ImP - Press Mode / Enter until ImPS is displayed. - Press Set and hold. > The current numerical value is displayed flashing for 5 s, after that, one of the 4 digits will become active (number is blinking, can be changed).
  • Page 38 8 Programming + Parameter setting 8.2.9 Scaling of the measuring range • With the parameter analog starting point ASP, you determine at which measured value the output signal is 4 mA. • With the parameter analog end point AEP, you determine at which measured value the output signal is 20 mA.

  • Page 39: Maintenance

    9 Maintenance MA-Di MAINTENANCE Error messages Display Description Measured value < -20 % of the measuring range end value (temperature) Exceeding of the detection area (Flow rate > 120 % of the measuring range end value) Flashing: Short-circuit in output 1* Flashing: Short-circuit in output 2 * Flashing: Short-circuit in both outputs * Flashing: Error in the sensing element...

  • Page 40: Calibration

    9 Maintenance • The sensor must always be cleaned with the approved cleaning agents. • Do not use any scrubbing (abrasive) cleaning agents. These may cause irreparable damage on the sensor. If required, conduct another inspection after completion of • CAUTION the cleaning treatment.

  • Page 41: Troubleshooting

    10 Troubleshooting MA-Di TROUBLESHOOTING 10.1 Replacement of defective parts If defects cannot be remedied, the products must be shut down and protected against unintended commissioning. Immediately replace all other damaged parts. Any damage on the compressed air meter that affects pressure safety, may only be remedied by authorized personnel.

  • Page 42: Notes

    NOTES...
  • Page 43 SUPPORT OPTIONS installationSERVICE startSERVICE Installation of new instrument Electrical startup with con- technology in a pressureless nectivity testing for energy system or without production management system loss by drilling under pressure userSERVICE calibrationSERVICE Introduction of your emplo- Annual recalibration of the yees into compressed air sensor technology to imple- controlling and the handling...
  • Page 44 Save half of the costs. Ensure availability. Increase quality. Your direct connection to our experts In urgent technical matters +49 (0) 561. 506 309-72 In urgent sales matters +49 (0) 561. 506 309-73 info@postberg.com T: +49 (0)561. 50 63 09-70 F: +49 (0)561.

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