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sewerin miniLec 4 Operating Instructions Manual

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  • Page 1 Operating Instructions...
  • Page 2 Measurable success by Sewerin equipment Congratulations. You have chosen a quality instrument manufactured by Hermann Sewerin GmbH. Our equipment will provide you with the highest standards of perform- ance, safety and efficiency. They correspond with the national and in- ternational guide-lines.
  • Page 3 Illustration MiniLec 4 with full equipment (version HP) Inlet for prelimi- nary test Outlet for Test of working order Inlet for Main test, Suspension Test of working Signal light/ order and infrared interface Regulator inspections Buzzer Keyboard Charging contacts...
  • Page 4 Overview Operating keys Switching the instrument on/off (keep pressed for approx. 3 seconds) Entries/confirming a selection (short pressing) Changing between the operating menus Selection of menu items Test mode Type of gas Flow rate Battery state Unit Pressure Unit...
  • Page 5 Operating Instructions MiniLec® 4 26.10.2016 – V3.XXX – 103999 – en...
  • Page 6 Symbols used CAUTION! Danger of injuries! This symbol refers to important safety instructions. Adhere strictly to these instructions to avoid injuries! CAUTION! This symbol refers to important safety instructions. Adhere strictly to these instructions to avoid material damages! Note: This symbol refers to information and useful tips which are exceeding the basic operating proce- dures.

  • Page 7: Table Of Contents

    Contents Page General information ..............1 Warranty ..................1 Application purpose ..............2 Intended usage .................2 General safety instructions ............3 Equipment ................4 Connections ................4 Visual and audible signals ............5 Infrared interface ...............6 Operation .................7 Measuring mode ...............7 3.1.1 General information regarding the measuring mode ....7 3.1.1.1 Switching on the device ............7 3.1.1.2...
  • Page 8 Contents Page Extended settings ..............27 3.2.1 Access ..................27 3.2.2 Procedure ................29 3.2.3 Info menu ................31 3.2.3.1 Adjustment menu ..............31 3.2.3.2 System menu ..............32 3.2.3.3 Hardware menu..............33 3.2.3.4 Parameters menu..............35 3.2.3.5 Memory menu ..............35 Charging and battery operation ...........36 Operation with rechargeable nickel metal hydride accumulators (NiMH) ..............36 Operation with non-rechargeable alkaline batteries ....39 Maintenance ................40...

  • Page 9: General Information

    To ensure proper functioning and safety, it is required to observe the following notes. Hermann Sewerin GmbH is not liable for damage caused by failure to comply with these notes. The guarantee and liability conditions of the sales and delivery conditions of Hermann Sewerin GmbH are not extended by the following notes.

  • Page 10: Application Purpose

    1 General information Application purpose MiniLec 4 is an electronic instrument for measuring the pressure and the flow rate of low-pressure gas installations. Apart from performing measurements, the instrument also permits to store and record measurement data. Note: These operating instructions describe the function- alities of firmware version 2.XXX.

  • Page 11: General Safety Instructions

    1 General information General safety instructions z The MiniLec 4 instrument is constructed in accordance with the European Ex protection standards CENELEC and ATEX 100a. z The instrument may only be used with the following gasses: – Air – Natural gas –...

  • Page 12: Equipment

    2 Equipment Equipment The instrument can be delivered in two versions: z Version HP (full equipment), suitable for Preliminary test, Main test, Test of working order (serviceability determinations) and Regulator inspection z Version LP (basic equipment), suitable for Main test, Test of working order and Regulator inspection.

  • Page 13: Visual And Audible Signals

    2 Equipment Visual and audible signals MiniLec 4 is equipped with two signalling instruments: z red signal light on top of the instrument z buzzer at the front panel of the instrument. Note: These signalling instruments cannot be switched off.

  • Page 14: Infrared Interface

    To ensure an optimum data transmission, you need to align the MiniLec 4 instrument with the relevant interface of the PC, printer, etc. The following illustration shows how the instruments are properly...

  • Page 15: Operation

    3 Operation Operation The operation of the instrument is divided into two sections: z Measuring mode (see section 3.1) Measurements are carried out in the measuring mode. The User menu can be used to change the test mode, to store measure- ment data and to call up protocols.
  • Page 16 3 Operation The instrument enters the pre-set test mode. Note: The test mode to be enabled immediately after the start-up can be changed in the extended settings (see section 3.2). As default, the mode Test of working order is set. The following display data depend on the testing mode.
  • Page 17 3 Operation Main test Measuring range Main test Indication of the test mode, 0..200 mbar including information on the sen- sors’ measurement range Parameters Meas.time 10 min Indication of the measuring result specifications, corresponding to < 0.1 mbar the selected test mode Measuring data Indication of measurement val- mbar...

  • Page 18: User Menu

    3 Operation 3.1.1.2 User menu The measuring mode permits to use the following functions: z Zero point correction z Selection of the test mode z Start meas. resp. Store z Protocols. These functions can be called up via the User menu: z Press the key for approx.

  • Page 19: Setting The Zero Point

    3 Operation 3.1.2 Setting the zero point Before the measurements are started, the instrument can be adjusted to the ambient conditions by setting the zero point. At that time, no tubes should be attached to the instrument. If the zero point is incorrectly set, other values than zero are indicated on the display after switching on the instrument.

  • Page 20: Test Of Working Order

    3 Operation 3.1.3 Test of working order CAUTION! Test of working order (i. e. serviceability determina- tions) may only be carried out by sufficiently qualified members of staff who are familiar with the prevailing national regulations (in Germany, for example: TRGI). All relevant safety procedures and accident preven- tion regulations have to be taken into account.

  • Page 21: Execution

    3 Operation 3.1.3.2 Execution The device is in measuring mode. Il/h 22.0 mbar z Press the key for approx. two seconds to access the User menu. key to select the menu item Store resp. Start z Use the meas.. Note: The menu item Start meas.

  • Page 22: Analysis Of Working Order

    3 Operation key. The Client/ z Confirm the displayed protocol with the Meter no. menu appears. z If necessary use the or key to select the menu item Client no.. Enter a Client no. (max. 6 digits). key to select the menu item Meter z If necessary use the no..

  • Page 23: Main Test

    3 Operation 3.1.4 Main test CAUTION! Main test may only be carried out by sufficiently quali- fied members of staff who are familiar with the prevail- ing national regulations (in Germany, for example: TRGI). All relevant safety procedures and accident prevention regulations have to be taken into account.

  • Page 24: Execution

    3 Operation 3.1.4.2 Execution The device is in measuring mode. 150.5 mbar z Press the key for approx. two seconds to access the User menu. z Use the key to select the menu item Start meas.. z Confirm with key. The measurement is started.

  • Page 25: Preliminary Test

    3 Operation 3.1.5 Preliminary test CAUTION! Preliminary test may only be carried out by suffi- ciently qualified members of staff who are familiar with the prevailing national regulations (in Germany, for example: TRGI). All relevant safety procedures and accident prevention regulations have to be taken into account.

  • Page 26: Preparations

    3 Operation 3.1.5.1 Preparations: z Switch the instrument on. z Connect the instrument to the supply system. Use the corre- sponding quick-release connection for this which is installed on the instrument. z Apply the required testing pressure. z Check whether an P for the testing mode Preliminary test is visible in the upper left section of the display.
  • Page 27 3 Operation key. The Client/ z Confirm the displayed protocol with the Meter no. menu appears. z If necessary use the key to select the menu item Client no.. Enter a Client no. (max. 6 digits). key to select the menu item Meter z If necessary use the no..

  • Page 28: Regulator Inspection

    3 Operation 3.1.6 Regulator inspection CAUTION! Regulator inspection may only be carried out by suf- ficiently qualified members of staff who are familiar with the prevailing national regulations (in Germany, for example: TRGI). All relevant safety procedures and accident prevention regulations have to be taken into account.
  • Page 29 3 Operation The display showes the Regulator ins menu: Dynamic pr. Static pr. Reaction pr. Zero shut-off Low flow safe Exit z Use the key to select the desired individual test. z Confirm with key. The selected test and the measured value appear on the display. z Use the key to select the desired option (e.

  • Page 30: Dynamic Pressure

    3 Operation key. The Client/ z Confirm the displayed protocol with the Meter no. menu appears. z If necessary use the key to select the menu item Cli- ent no. Enter a Client no. (max. 6 digits). key to select the menu item Meter z If necessary use the no..

  • Page 31: Reaction Pressure Inspection

    3 Operation 3.1.6.5 Reaction pressure inspection This test is used to determine the upper switching-off point of the safety shut-off valve. After the safety shut-off valve is Store triggered (distinctly audible): Exit z Confirm the value immedi- ately with Store. z The value is stored for the protocol.

  • Page 32: Start Measurement/Stop Measurement/Store

    3 Operation 3.1.7 Start measurement/Stop measurement/Store Measurements must always be started. Starting a measurement is explained separately for each testing mode in the section title Performing measurements. At the end of the measuring period the measurement is auto- matically saved. A consecutively increasing number is assigned to every measurement.

  • Page 33: Protocols

    3 Operation 3.1.8 Protocols The measurement results are stored to permit documenting the measurements. Stored measurements can be viewed, printed, transmitted or deleted in the Protocols menu. To access the Protocols menu: z Press the key for approx. two seconds to access the User menu.
  • Page 34 Note: To permit execution of the commands Print, Send and Send all, it is required to align the MiniLec 4 with the receiving instrument (see chapter 2.3). If no receiving instrument is detected, the search run is interrupted after two minutes. The instrument returns to the Protocols menu.

  • Page 35: Extended Settings

    The access is protected by a PIN code. As default, PIN Code City Council Frank Smith 0001 is always pre-set. Leakage Delivery A specific setting is available for the MiniLec 4 instrument deter- mining that only authorised members of staff have access to the Deutsch Info menu. English Español...
  • Page 36 If you cannot call up the extended settings (e. g., you have forgotten the PIN code), it is required to contact the SEWERIN service. The PIN code has to be entered from left to right. The currently active digit is always indicated on a black background: z Select the desired digit with the help of the key.

  • Page 37: Procedure

    3 Operation 3.2.2 Procedure The extended settings are divided into three levels. z The two first levels are used to subdivide and categorise the setting options. z The third level is used for the actual selection or entry. The name of the current menu info V3.000 is always indicated in the top...
  • Page 38 3 Operation z Entering values The position at which the entry is to be inserted is always indi- cated on a black background: Use the key to increase or decrease the value. Use the key to confirm the selected value. Note: It is always required to confirm all values.

  • Page 39: Info Menu

    3 Operation 3.2.3 Info menu The Info menu can be found on the top level of the extended settings: Adjustment System Hardware Parameter Memory Exit Note: If you select Exit in the Info menu, to instrument returns to the measuring mode. 3.2.3.1 Adjustment menu The Adjustment menu is used for setting the sensors.

  • Page 40: System Menu

    3 Operation 3.2.3.2 System menu The System menu is used to set general details and specifica- tions for operation, inspection and documentation. System Date/time Date format INS interval INS block PIN code User name Language Exit Date/time 15.05.2008 09:00 Entry of date and time. This set- DD.MM.YYYY ting is important to document the YYYY-MM-DD...

  • Page 41: Hardware Menu

    DD.MM.YYYY weeks 00 YYYY-MM-DD 3 Operation weeks 00 15.05.2008 09:00 PIN code 0000 DD.MM.YYYY YYYY-MM-DD Entry of a user-defined PIN code. City Council 0000 Frank Smith weeks 00 Leakage Delivery User name City Council Frank Smith Deutsch Entry of the user name. This set- Leakage Delivery English ting is important to document the...
  • Page 42 Note: C3H8 If air or nitrogen is used, the type of gas, CH4, C4H10 must be set. TGAS 0.00. Sensors Sensors 0.00. CAUTION! The sensor settings may only be set or modified by LCD test the SEWERIN service! Reset 0.00.

  • Page 43: Parameters Menu

    Sensors 3 Operation Sensors LCD test LCD test For checking the functionality of Reset 0.00. LCD test the LCD. Reset Reset 0.00. All customized settings are reset to the default settings. 3.2.3.4 Parameters menu The Parameters menu is used to modify the default settings of the measurements.

  • Page 44: Charging And Battery Operation

    4 Charging and battery operation Charging and battery operation The instrument can be operated with two different types of batteries: z Nickel metal hydride accumulators (rechargeable) z Alkaline batteries (non-rechargeable) Prescribed type: AA cells Recommended manufacturers: Sanyo, Varta or Duracell To ensure that the time required for recharging and of the remain- ing operating time is indicated correctly, the following settings need to be modified in the extended settings:...
  • Page 45 4 Charging and battery operation CAUTION! To ensure trouble-free operation, the following in- structions have to be taken into account: z The docking station must not be connected di- rectly to the 24 V onboard power supply of the vehicle. This voltage is too high for charging. z The accumulator should roughly have ambient temperature for recharging.
  • Page 46 4 Charging and battery operation Note: If the instrument is switched off and kept outside the docking station, the nickel metal hydride accu- mulators start to discharge. After max. 30 days the accumulators are completely discharged. To retain the accumulator capacity, it is required to completely discharge the instrument regularly (e.

  • Page 47: Operation With Non-Rechargeable Alkaline Batteries

    If this instru- ment is put into the docking station, a corresponding message appears on display. The MiniLec 4 instrument can be operated with new alkaline batteries for at least 20 hours. Proceed as follows to replace batteries or accumulators: z Loosen the two lower screws on the back panel of the instru- ment using the supplied screwdriver.

  • Page 48: Maintenance

    Checking the leak-tightness of the device means cheaking that the MiniLec 4 itself is leak-tight. This check must not be confused with the leak test (see section 3.1.4). Both tests are carried out using a MiniLec 4 tester (see sec-...

  • Page 49: Adjustment

    Reset. Maintenance and repair The device must only be serviced and repaired by SEWERIN Service. z Send the device to SEWERIN for repairs and for annual main- tenance. Note: If there is a service agreement in place, the device...

  • Page 50: Errors

    An error occurred Check pressure. ADJUSTMENT during adjusting Repeat adjustment. the pressure See section 3.2.3.1 and 5 int. RAM An error occurred Only the SEWERIN SERVICE in the internal service may perform troubleshooting. XFLASH An error occurred Only the SEWERIN SERVICE...

  • Page 51: Appendix

    7 Appendix Appendix Equipment and permissible ranges of use Dimensions (W × H × D): approx. 60 × 160 × 40 mm Weight: approx. 300 g Type of protection: IP54 Power supply: 3 Cells, Type Mignon AA , via: ● Accumulators: NiMH ●...

  • Page 52: Sensors

    7 Appendix Sensors Pressure sensor Used for: ● Test of working order ● Main test ● Regulator inspection Measuring range: 0 – 200 mbar Resolution: 0.1 mbar Measuring error: ±5 % of end of measuring range Used for: Preliminary test Measuring range: 0 –...

  • Page 53: Connection And Application Options

    7 Appendix Connection and application options Replacement of a meter, Test of working order Gas: Natural gas Flow rate: 0 – 5 l/h Operating pressure: approx. 20 – 30 mbar Preliminary test Gas: Pressure: approx. 1.0 bar Legende: 1 Main stop device closed 2 Meter-locking device open...
  • Page 54 7 Appendix Main test Gas: Pressure: approx. 150 mbar Check of non-metered pipes Gas: Natural gas Flow rate: 0 – 5 l/h Operating pressure: approx. 20 – 30 mbar Test of working order at an arbitrary place of the pipe Gas: Natural gas Flow rate: 0 –...
  • Page 55 7 Appendix Regulator inspection/Static pressure Main stop device: open Gas: Natural gas Operating pressure: approx. 20 – 30 mbar Regulator inspection/Dynamic pressure Main stop device: open Gas: Natural gas Operating pressure: approx. 20 – 30 mbar Legende: 1 Main stop device closed 2 Meter-locking device open...
  • Page 56 7 Appendix Regulator inspection/Reaction pressure inspection Main stop device: closed Gas: Pressure: depending on the upper switching-off point of the safety shut-off valve (typi- cal: 50 – 100 mbar) Regulator inspection/Zero shut-off Main stop device: open Operating pressure: 0 mbar...
  • Page 57 7 Appendix Regulator inspection/low-pressure cut-off valve Main stop device: open Gas: Natural gas Operating pressure: slowly increasing to approx. 20 – 30 mbar Legende: 1 Main stop device closed 2 Meter-locking device open 3 Equipment-locking device 4 Consumer switched off 5 Controller + Safety shut-off valve (SAV) 7 Hand pump 10 Y-piece with two ball valves...

  • Page 58: Entering A User Name

    7 Appendix Entering a user name The user name is stored in the advanced settings (System menu). The advanced settings are explained in section 3.2. Access is explained in section 3.2.1. Use the keys to enter the characters. All characters present must be confirmed. 1.
  • Page 59 7 Appendix 2. Possibility: An existing letter has to be overwritten. When the position is changed, the existing character is highlighted with a black block. The blanc appears when pressing key, thereafter letters A - Z can be chosen as described on the previous page. After reaching letter Z the menu starts again with letter A.

  • Page 60: Delivery Variants And Accessories

    7 Appendix Delivery variants and accessories 7.5.1 Delivery variants MiniLec 4 – version HP Part No.: LH04-10101 z Preliminary test (Connection: Rectus 21 nipple) z Main test (Connection: Rectus 20 nipple) z Regulator inspection (Connection: Rectus 20 nipple) z Test of working order...

  • Page 61: Accessories

    7 Appendix 7.5.2 Accessories Following is a selection of accessories for the MiniLec 4. We are happy to provide information regaring further accessories. Case MiniLec 4 Part No.: ZD22-10000 z Size SR/VT z with foam insert and com- partments for multi-purposes z to accommodate the following: –...
  • Page 62 100 – 240 V~/12 V= Thermo-printer and AC/DC adapter Part No.: 3001-0018 z Printer with infrared interface for printing via MiniLec 4 or palmtop computer z Printing out the measure ment results without graphics Inlet hose Part No.: LH04-Z0100...
  • Page 63 7 Appendix Connection hose Part No.: LH04-Z0300 z Instrument: Rectus 21 coupling z Installation: Rectus 21 coupling z Length 1.5 m z for Preliminary test; optional: also for other tests. Test stoppers for two-pipe gas meter, e. g. DN 25 G 1¼ Part No.: LH04-Z1900 z with ball valve and Rectus 21 nipple...
  • Page 64 7 Appendix Test cap DN 25 for one-pipe gas meter connection Part No.: LH04-Z0600 z Thread G2 z with two ball valves and Rec- tus 21 nipple z for checking the supply line (non-metered) and consump- tion line apart from each other z for all test types Y-piece with two ball valves Part No.: LH04-Z2300...
  • Page 65 Part No.: LH04-82000 z Software for the central re- cording, processing and man- aging of measurement data on the PC Test set MiniLec 4 HP Part No.: ZP08-10000 z for checking pressure sensors and flow rate sensor of the MiniLec 4 HP Test set MiniLec 4 LP Part No.: ZP08-10100...

  • Page 66: Declaration Of Conformity

    7 Appendix Declaration of conformity Hermann Sewerin GmbH hereby declares that the MiniLec ® fulfils the requirements of the following guideline: z 2014/30/EU Gütersloh, 2016-04-20 Dr. S. Sewerin (General Manager) The complete declaration of conformity can be found online.

  • Page 67: Advice On Disposal

    Test gas can 16 05 05 Battery, accumulator 16 06 05 Old instruments Old instruments can be returned to Hermann Sewerin GmbH. We will arrange for the appliance to be disposed of appropriately by certified specialist contractors free of charge.

  • Page 68: Terminology And Abbreviations

    7 Appendix Terminology and abbreviations Maximum permissible pressure change DVGW Deutsche Vereinigung des Gas- und Wasserfaches e.V. [Ger- man Technical and Scientific Association for Gas and Water] IrDA Infrared Data Association, interface standard used for com- munication Liquid Crystal Display NiMH Nickel metal hydride Lowest pressure...

  • Page 69: Index

    8 Index Index Accu capacity 34, 36 Firmware Adjustment 41 Version 7 Adjustment menu 31 Ambient pressure 3 Autostart 34 Gas 3 Back light 34 Hardware menu 33 Battery Battery type 33 Charging operation 36 Replacement 38 Info menu 28, 31 Battery operation 36 Infrared interface 6, 43 INS block 32...
  • Page 70 8 Index Memory Main test 3 Capacity 24, 43 Preliminary test 3 Delete 35 Regulator inspection 3 Memory menu 35 Test of working order 3 TRGI 12, 14, 15, 17, 20 Type of gas 3, 34 Operating pressure 3 Operating temperature 3 User menu 10 User name 33 Parameters 8, 9...
  • Page 71 Hermann Sewerin GmbH Robert-Bosch-Straße 3 · 33334 Gütersloh · Germany Telefon +49 5241 934-0 · Telefax +49 5241 934-444 www.sewerin.com · info@sewerin.com...

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