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LEYRO LPG 300 Manual

Portable low pressure controller
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LPG 300
PORTABLE LOW PRESSURE CONTROLLER
MANUAL

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  • Page 1 LPG 300 PORTABLE LOW PRESSURE CONTROLLER MANUAL...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. GENERAL 1.1 Symbology 2. SAFETY 2.1 Intended use 2.2 Personnel qualification 2.3 Specific risks 2.4 Labelling/ Safety marks 3. PRODUCT DESCRIPTION 4. TRANSPORT, PACKAGING AND STORAGE 5. OPERATION 6. INTERFACE 7. LOW PRESSURE CALIBRATOR 8. FAILURES DISMOUNTING, RETURN AND DIPOSAL 10. TECHNICAL DATA...

  • Page 5: General

    The manual should not be used for the purpose of competition without the consent in writing of Leyro and should not be sent to third parties.Copies for personal use are permitted. The document may contain technical inaccuracies or typographical errors. The content will be reviewed on a regular basis. These changes will take place in later versions. The described products can improve and change at any time without prior notice. © Copyright Leyro ® All rights reserved. 1.1 Symbology This symbol indicates safety instructions. These safety instructions must be followed carefully. Failure to heed these instructions for personal injury or property damage that could happen. Therefore Leyro ® is not responsible for. This symbol indicates a note. These notes should be observed to achieve the optimal performance of the equipment.

  • Page 6: Safety

    Warning! Prior to installation, implementation service and operation make sure that selec- ted low pressure controller suitable with regard to range measurement, design and specific measuring conditions. Failure to comply may cause serious injury and/or property damage. The different chapters of this instruction manual contains other important safety instructions. 2.1 Intended use The driver of low pressure model LPG300 is designed to test and calibrate pressure sen- sors. The instrument has been designed and built solely for the purpose described here and should be used in compliance with the same. Comply with the technical specifications of this instruction manual. Improper handling or technical operation of the instrument does not comply with the specifications required the taken out of service immediately and inspected by an authorised Leyro. Control the electronic precision instrument with appropriate diligence (protect it from hu- midity, impacts, strong magnetic fields, static electricity and extreme temperatures; not to introduce any object in the instrument or openings). Plugs and Sockets must be protected from dirt. If you change the instrument from a cold environment to a warm, malfunctions may occur in it. In such a case, should wait until it fits the instrument temperature to room temperature before switching it back on. No claims due to improper handling is not supported. 2.2 Personnel qualification Warning! Risk of injury due to insufficient qualifications! Improper handling can cause considerable personal damage. The activities described in these operating instructions debenrealizarse only by skilled technicians with the consiguientecualificacion. Keep unqualified dangerous areas.

  • Page 7: Specific Risks

    Due to their training, their knowledge of the regulation and measurement technique as well as his experience and his knowledge of regulations, standards and directives in force in the country of use qualified personnel is capable of carrying out the work des- cribed and recognize potential hazards only. Some specific use conditions require additional skills, eg. about aggressive media. 2.3 Specific risks Warning! It is essential protection against electrostatic discharge! The use of grounded work surfaces and personal wrist straps is required works expo- sed circuitry (printed circuit boards), to avoid damage to sensitive electronic compo- nents caused by electrostatic discharge. To perform a safe working on the instrument owner must ensure that: a first aid kit is available and that is always present aid if necessary. Operators regularly receive instructions, on all issues related to security work, first aid and environmental protection, and know also instruction manual and particularly the safety instructions. Danger! Danger to life due to electrical current. There are direct death danger to touch live parts. Is operated with a defective power supply (e.g. short circuit from the mains voltage to the output voltage), can result in life-threatening voltages at the device! Warning! Residual media in dismounted low pressure controller can cause risks to people, the environment and equipment. Take appropriate precautionary measures. Do not use this instrument in security sys- tems or devices given emergency. Incorrect use of the instrument may cause injury. In case of failure it is possible aggressive media with extreme temperatures or low pressure or that there is a vacuum in the instrument. MaxP = 1 bar atmospheric pressure...

  • Page 8: Labelling/ Safety Marks

    2.4 Labelling/ Safety marks It is absolutely necessary to read the operating instructions prior to Assembly and commissioning of the instrument! CE, Communauté Européenne The instruments bearing this mark comply with the relevant Euro- pean directives. This marking on the instruments indicates that they must not be disposed of in domestic waste. The disposal is carried out by return tothe manufacturer or by the corresponding municipal authorities (see EU directive 2002/96/EC). 3. PRODUCT DESCRIPTION Brief description The driver of low pressure LPG300 fits: The easy supply of positive and negative reference pressure. Measurement of positive and negative pressure. Differential pressure measurement. Checking for leaks of a test piece. Scope of delivery Power supply Instruction manual According to DIN in 10204 3.1 calibration certificate (optional: certified ENAC) Check with delivery note if all of the parts are delivered...
  • Page 10 Electrical connections in the rear...
  • Page 11 Power supply Low pressure controller is designed from the factory for connecting to a DC 24 v power supply. The power connector is located on the back of the instrument. Danger! Danger of electric shock! It is essential to pull the plug from the socket before replacing the fuse! Is operated with a defective power supply (e.g. short circuit from the mains voltage to the output voltage), they can result in life-threate- ning voltages at the instrument! Only use the original power (Mascotmodelo 9926) included in the scope of supply source. 1. In case of connection to other devices, select the connection mode with special care. In certain circumstances, some internal connection in third party devices (e.g. connection to ground) can cause not permitted voltage potentials, which in turn could affect the perfor- mance of the device itself or other connected device, or even destroy them. 2. The connector must be always connected in the form accessible to an electrical outlet, to allow for easy disconnection at any time. LPG 300 Front view The screen behind the plate front glass is glass. If during use cannot be dismis- sed completely a glass breakage including destruction of blade, all persons who are in the environment close to the instrument should wear glasses of protection before and during use. During the process of regulation: Vent, In the mode of regulation: measurment of escape, otherwise non-operating another call from the OK Increase the nominal value at x % Increase the nominal value 100 % Connec- ON / tions to pressure...
  • Page 12 ON / OFF Key to turn and turn off the instrument Menu Via this button you access SETUP menu, in which you can per- form the settings for the corresponding operating mode. If CTRL mode is used, the instrument will remain in the VENT after exiting the SETUP menu mode. The SETUP menu options are composed of six sub-options. In Chapter 5 you will find a detailed description of the points. LEAK With the key LEAK can be checked for leakage of a device con- nected to the controller (This function however is possible only in the CONTROL mode). ZERO Button for manual adjustment of the zero point of the integrated sensor. Due to factors external, such as temperature, position, or ambient pressure, the zero point of the instrument, i.e. the indicator with open pressure inputs, can be modified. During adjustment of the zero point, the instrument determines automati- cally such modifications and includes them in the current pressure indication. The zero point adjustment requires a switching of the internal valves, which is not possible without a loss of pressure (if this causes disturbance during use, the adjustment of the zero point can be disabled). Pressure connections Differential pressure instruments are connected to the instrument connections + and -. Relative pressure instruments are connected to the connection (connection - open to the atmosphere) for negative pressure instruments are connected to the connection - ( connec- tion + open to the atmosphere).

  • Page 13: Transport, Packaging And Storage

    Overpressure protection The maximum allowable pressure must not be exceeded: OVERLOAD PRESSURE RANGE Quintuple overload 1 mbar Quintuple overload 10 mbar Quintuple overload 50 mbar Quintuple overload 100 mbar Double overload 500 mbar Double overload 1,000 mbar 4. TRANSPORT, PACKAGING AND STORAGE Transport Check if the low pressure controller presents any damage caused during transport. Immediately notify any apparent damage. Packaging Do not remove packaging until just before mounting. Keep the packaging, since it is the optimal protection during transportation (e.g. If the place of installation changes or if the instrument is sent for possible repairs). Storage Conditions permitted in the storage place: Storage temperature: -10 ... +70 °C...

  • Page 14: Operation

    3. For a long (more than 30 days) storage put a bag with a desiccant in packing. 4. Not sealed the entrances of pressure during storage! Variations in barometric pressure could cause damage to instruments with low measuring ranges. Warning! Before storing the instrument (following operation), remove all the residual me- dia. This is especially important when the environment is harmful to health, e.g.. caustic, toxic, carcinogenic, radioactive, etc. 5. OPERATION Not be operating with compressed air or breath tests. Otherwise, the instru- ments with low measuring ranges can be damaged. Protect the instrument from direct sunlight, as this may cause measurement errors. Operating Control mode (CTRL) CTRL mode is used for calibration of pressure and pressure switches or other devices to pressure sensors. CTRL mode the pump is activated and regulates the nominal pressure in the corresponding form. The internal sensor supplies the current real value through the indicator. Configuration Press MENU button. Confirm the menu MODE (MODUS) with OK option and press / until CTRL. Confirm with OK. Set the upper limit of the pressure range in the sub-menu RANGE (range) (key / keys and / ). Confirm with OK Setting the unit of pressure in the sub-menu UNIT (unit) keys / ) and confirm with In the sub-menu STEP (steps), the sequence of steps is set to % (keys / and / ), confirm with OK. Exit the sub-menu by pressing the MENU key.
  • Page 15 Modify nominal value in x%: To exit the menu becomes instrument VENT mode, i.e., gauge sensor is purged. Modificatin of pressure in % via keys The nominal value of the pressure range is indicated in the upper center of the screen. Modification of pressur to 100 % via In the bottom half of the same percentage value can be read. To exit this menu value stands at 0%. By pressing the button OK Modification of pressure again to 0% via can switch between specification nominal key pressure and the percentage value. The percentage value can be changed with the keys / (in the established steps ampli- tudes) and keys / . Specification nominal pressure can be changed only with the keys / . Keys / can skip specification of nominal pressure in the corresponding place. As soon the controller display indicates a stable value, data can be registered. Full scale value Pressure unit Operating mode Meassured value Battery status...
  • Page 16 Operating mode Measure (MEAS) By pressing the LEAK button, the control process will be deactivated and the system closed. It can be controlled via the display if the value is stable. By pressing the LEAK button again, the mode will be stopped and the unit placed back in Control mode. Configuration For mode MEAS, the RANGE and STEP of the sub-menu options are irrelevant. Press the MENU button. Confirm the menu point MODE with OK and press the / button until MEAS appears. Confirm with OK. In the menu, go to the UNIT item with the / button, select the pressure unit and confirm with OK. Press the MENU button in order to exit the menu. SETTING submenu: - Go to the SETTINGS menu item with the / button, confirm with OK. - In the submenu, go to the zero point adjustment item and confirm with OK. - Under the point, AUTO-ZERO, the automatic zero point adjustment for the MEAS mode can be activated or deactivated. Operation On leaving the menu, the zero point of the internal sensor is adjusted, dependent upon the setting. The instrument then begins to measure the subsequent pressures.
  • Page 17 Using the ZERO button in MEAS mode, the instrument‘s zero point can be compensated at any time. Caution! If the connected pressure should exceed the permissible highest loading (125 %), the internal sensor will be closed off using a magnetic valve. The display will then show ERROR. Using the OK button, the instrument can be closed off and opened up freely. Operating mode AUTO In AUTO mode, a pressure profile can be stored. This is especially useful when multiple pressure sensors or pressure switches are to be calibrated with the same values. The mode also enables a defined profile to be traversed several times in succession. Setting Press the MENU button. Confirm the menu item MODE with the OK button and press the / button until AUTO appears. Confirm with OK. For the AUTO mode, the submenu points RANGE, UNIT and STEPS are not relevant. Go to the SETTINGS menu item with the / buttons and confirm with the OK button. The submenu item zero point adjustment is not relevant. In the submenu, go to the AUTO mode item with the UP/DOWN buttons and confirm with OK: - RANGE: Pressure range that will be covered - UNIT: Pressure unit - STEPS: The number of steps which will be taken to increase and decrease the pressure. These increments are calculated by the controller itself.
  • Page 18 In the submenu point, CONFIGURATION 1, further settings can be defined for the AUTO mode. Setting CYCLES: Here the number of cycles to be carried out in AUTO mode will be set. T START: Delay time to vent the sensor T STOP: Delay time before reaching the maximum defined pressure T HOLD: Hold time until a new pressure value is reached T PAUSE: Delay time between two cycles AUTO ZERO: Automatic zero point adjustment at the completion of each cycle To exit the submenu, press the MENU button. Operation On leaving the menu, the calibrator will revert to ‘Standby status’. All information about theAUTO mode will be shown on the display.
  • Page 19 The figure shows the flow chart for the AUTO mode. Based on the table, one will know which cycles are being carried out and the meaning of each.
  • Page 20 Between phases 10 and 16, the calibrator data can be evaluated and recorded if a stable value is displayed. The AUTO mode can be exited by pressing the MENU button. VENT will be shown In the top left of the display. Leakage (LEAK) In CTRL mode, the connected test item can be checked for leakage via LEAK button. Setting In order to be able to check a test item for leakage, the instrument must first be placed in CTRL mode. Set the desired pressure using the / button or the / button (0 %/100 %) buttons. As soon as the pressure is reached and the value is stable, press the LEAK button. The internal pump will be switched off and the applied pressure will be held. Operation...
  • Page 21 SETUP settings (SETUP) The SETUP menu items are made up of six submenus. RANGE: Setting of the pressure range (max. 100 % of the measuring span) UNIT: Selection of the pressure unit (Pa, kPa, hPa, bar, mbar, psi, inH2O, inHg, mmHg, Torr) STEPS: Setting of the step size in x %. Settable in the range 1 ... 50 % MODE: Selection of the operating mode Control (CTRL): Regulates to the given set point Measure (MEAS): Measurement of differential and relative pressure Automatic (AUTO): Carries out a stored test routine LANGUAGE: Selection of the displayed language SETTINGS: Here additional instrument settings can be made...
  • Page 22 Navigation within the menu: OK: Acts to confirm the relevant setting Left/Right arrow: Setting of the active decimal point Up/Down arrow: Change between the different submenu points The menu points With the MENU button and with the / button, press the up and down until one is at the required menu point. With the SELECT button, one reaches the desired submenu. The following items are available in the submenu: RANGE Under the RANGE menu point the controller‘s final control value can be changed for the control. UNIT Here the unit, in which the low-pressure controller will display the measured value on the screen, can be selected. Dependent upon the measuring range of the instrument, various units are not available since they could not be displayed. STEPS Here the step size for the STEP function, in x % of the set range, can be changed. Possi- ble settings are from 1 … 50 %. MODE Here the operating mode of the controller can be set. The following modes can be selec- ted: Measure (MEAS): The controller measures the pressure in the set pressure unit Control (CTRL): A set point is automatically regulated Automatic (AUTO): A stored test routine will be carried out...
  • Page 23 LANGUAGE Here the language in which the menu will be displayed can be set. There is the possibility to choose between German, English, Spanish and French. SETTINGS ZERO: Switching on and off of the automatic zero point adjustment following exit from the menu. It is even possible to set at what intervals the instrument will automatically perform a zero point adjustment. RS232/USB: Selection of the appropriate serial interface DISPLAY: Brightness setting AUTO-MODE: Setting of the pressure range, the pressure unit and number of steps the pressure range will be divided up into. The STEPS UP/STEPS DOWN can be assigned different values. INFO: Basic information on the instrument...

  • Page 24: Interface

    6. INTERFACE Information on the Firmware release and issue number of the Operating Instructions There is a possibility to control and monitor the controller via a PC over a serial interface (USB or RS-232). In control, measure and automatic modes a cyclic output of the current instrument status can be switched on and off. The output interval is 1 second. USB interface The PC provides a virtual COM port over the USB interface. The control of the instrument is therefore no different from the control via the RS-232. RS-232 interface To connect, the RxD, TxD and GND lines are required. The connection is made with an in-line serial cable (1:1, male/female). Interface configuration Press the MENU button and press the button until the SETTINGS submenu item appears and confirm with SELECT. In the submenu, go to the item RS-232/USB with the / button and confirm with OK. The following settings can be made:...
  • Page 25 ACTIVE: Selection of whether a serial interface will be used and which serial interface (USB, RS-232) BAUD: Selection of the baud rate (1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 56000, 57600) DATA-BITS: Defined value (8) STOP-BITS: Defined value (1) PARITY-BITS: Defined value (N) Commands for serial interface All interface commands are preceded by a colon and completed with the carriage return (CR). Command and parameters must be separated by a space. By adding a question mark to the appropriate action the parameter can be read rather than chan- ged. Received commands are acknowledged with OK, null or false commands with ERROR.
  • Page 28 Driver The current USB interface driver is “Future Technology Devices International Limited” (FTDI) provided for download on its website for all major operating systems (Win- dows, Linux, Mac OS).

  • Page 29: Low Pressure Calibrator

    7. LOW PRESSURE CALIBRATOR Maintenance This low-pressure controller is maintenance-free. Repairs must only be carried out by the manufacturer. The safety of the operator may be endangered by the low-pressure controller if, for example: - There is visible damage to the instrument. - The instrument is not working as specified. - The instrument has been stored under unsuitable conditions for an extended period of time. If there is any doubt, please return the low-pressure controller to the manufacturer for repair or maintenance. Cleaning Caution! Before cleaning, correctly disconnect the low-pressure controller from the pressure supply, switch it off and disconnect it from the mains. Clean the instrument with a moist cloth. Electrical connections must not come into contact with moisture. Wash or clean the dismounted instrument before returning it, in order protect persons and the environment from exposure to residual media. Residual media on the dismounted low-pressure controller can result in a risk to persons, the environment and equipment. Take sufficient precautionary measures. For information on returning the instrument see chapter “Return” Recalibration ENAC certificate We recommend that the instrument is regularly recalibrated by the manufacturer, with time intervals of approx. 12 months. Every factory recalibration includes, additionally, an extensive free-of-charge check of all system parameters with respect to their complian- ce with the specification. The basic settings will be corrected if necessary.
  • Page 30 8. FAULTS Caution If faults cannot be eliminated by means of the measures listed above, the low- pressure controller must be shut down immediately, and it must be ensured that pressure and/or signal are no longer present, and it must be prevented from being inadvertently put back into service. In this case, contact the manufacturer. If a return is needed, please follow the instructions given in chapter 10.2 “Return”.

  • Page 31: Dismounting, Return And Diposal

    Residual media on the dismounted low-pressure controller can result in a risk to persons, the environment and equipment. Take sufficient precautio- nary measures. Dismounting Only disconnect test and calibration installations once the system has been depressuri- sed! When disassembling the instrument the following must be followed: 1. Ensure that there is no positive or negative gauge pressure in the instrument and that all parts of the instrument are at room temperature. 2. Switch the instrument off using the ON/OFF switch 3. First pull the power supply unit from the mains socket and then from the power supply socket on the instrument. 4. Loosen the pressure connections 5. Do not close the pressure inputs! 6. Make sure there is no media left in the instrument. Return Warning Strictly observe the following when shipping the instrument: All instruments delivered to Leyro must be free from any kind of hazardous substances (acids, bases, solutions etc.). When returning the instrument, use the original packaging or a suitable transport package. To avoid damage: 1. Do not return the instrument with the pressure connections closed! Barometric pressure changes can damage instruments with low pressure ranges. 2. Wrap the instrument in an antistatic plastic film. 3. Place the instrument, along with the shock-absorbent material, in the packaging. Place shock-absorbent material evenly on all sides of the transport packaging. 4. If possible, place a bag, containing a desiccant, inside the packaging. 5. Label the shipment as transport of a highly sensitive measuring instrument.

  • Page 32: Technical Data

    Diposal Incorrect disposal can put the environment at risk. Dispose of instrument components and packaging materials in an environmentally compatible way and in accordance with the country-specific waste disposal regulations. This marking on the instruments indicates that they must not be disposed of in domestic waste. The disposal is carried out by return to the manufacturer or by the corresponding municipal authorities (see EU directive 2002/96/EC). 10. TECHNICAL DATA...
  • Page 36 NOTES _____________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________...
  • Page 37 HEAD OFFICE: LEYRO INSTRUMENTS SL Avda. Somosierra 24 28703 San Sebastián de los Reyes Madrid Tel: +34 912 835 502 info@leyro.net www.leyroinstruments.com...

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