Wigersma & Sikkema UNIGAS 300 Installation, Operating And Maintenance Manual
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Wigersma & Sikkema UNIGAS 300 Installation, Operating And Maintenance Manual

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UNIGAS 300

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Summary of Contents for Wigersma & Sikkema UNIGAS 300

  • Page 1 Installation, operating and maintenance manual UNIGAS 300...
  • Page 3 Passing this manual to third parties and its duplication, in full or in part, are only allowed with written permission from Wigersma & Sikkema B.V. Preface This manual provides important information about the use of the UNIGAS 300. Please read this manual carefully. Various remarks and warnings in this manual are marked with symbols. Read these carefully and take measures were necessary.

  • Page 4: Table Of Contents

    Installation, operating and maintenance manual UNIGAS 300 Table of contents Introduction ......................... 3 Explosion safety instructions (Ex) ................5 MID and conversion functions ................... 6 Measurement Instruments Directive (MID) ..................6 Conversion functions ........................... 7 3.2.1 Gas meter error curve correction ....................9 3.2.2...

  • Page 5: Introduction

    TZ (conversion on the basis of temperature and compressibility) • UNIGAS 300 can issue several alarm and warning signals. The level on which an alarm or warning is issued can be set. The alarms and warnings can be set for the pressure measured, the temperature measured and all flow registers.
  • Page 6 Installation, operating and maintenance manual UNIGAS 300 The scope of delivery at least includes: electronic volume conversion device UNIGAS 300 • Declaration of Conformity and Safety instructions • test report • configuration report • Accessories (optional): Lithium-Thionyl chloride D-cell G8610070000 •...

  • Page 7: Explosion Safety Instructions (Ex)

    Installation, operating and maintenance manual UNIGAS 300 2 Explosion safety instructions (Ex) See DDG6800CVML EU Declaration of Conformity and Safety instructions. DDG6004MHGB/08-2017/Rev.A2 Software version from M 1.3.40 and D 2.3.37...

  • Page 8: Mid And Conversion Functions

    Also see chapter 6; Human interface and control. Maintenance and repair: It is permitted for the UNIGAS 300 owner to install or replace modules and to replace the battery. After every repair, UNIGAS 300 must be verified again in an accredited laboratory.

  • Page 9: Conversion Functions

    UNIGAS 300 3.2 Conversion functions UNIGAS 300 has three inputs of which input 1 can be configured for connecting a gas meter with an LF impulse output, an HF impulse output or an encoder output. Inputs 2 and 3 are only suitable for connection of a gas meter with an LF impulse output.
  • Page 10 Specific gas compositions are known for which - at certain temperatures - the compressibility cannot be calculated correctly by the algorithm. UNIGAS 300 itself will detect such a case and handle it as a failing Z or Zb calculation and continue the conversion as described above.

  • Page 11: Gas Meter Error Curve Correction

    Gas meter error curve correction UNIGAS 300 features a function for error correction of a gas meter. This correction is possible if the high- frequency impulse input on UNIGAS 300 is used. The error correction complies with standard EN12405-1 +A2.

  • Page 12: Loggers And Log Books

    • status registers 1, 2 and 3 • Month logger: every month UNIGAS 300 logs current values. This logging takes place on the last day of the month at a preset time (as standard: 6:00 hours). Characteristics: 60 items (5 years), ring memory •...
  • Page 13 CRC, the data are not shown. All counter readings are stored with a resolution of 1 m³. • Two log books are present in UNIGAS 300. Status log book: each status message is logged with a date/time stamp. Characteristics: 360 items, ring memory •...

  • Page 14: Other Functions

    3.3.3 Battery consumption counter UNIGAS 300 is provided with a battery consumption counter. This device calculates the used battery capacity on the basis of the time passed and the total of the consumption of the functions performed (pressure and temperature measurement, communication and encoder or HF input).

  • Page 15: Installation

    Mounting A mounting plate is available for UNIGAS 300 that can be used to mount UNIGAS 300 on a wall, in a cupboard or on a gas meter. A universal flange mounting bracket is also available that can be used in combination with the above mounting plate to mount UNIGAS 300 on a gas meter flange.
  • Page 16 Reading out frequently does not affect the performance of UNIGAS 300. It does reduce the service life of the battery. To activate the port a module must be placed. Application notes are available for connecting the port to an RS232, USB or TTL serial port. Contact Wigersma &...

  • Page 17: Connections

    Sikkema modules can be connected to his module connector. This module connector is retroaction- free, which means that manipulation of the module connector will not affect the calibration functions. Tamper switch. UNIGAS 300 detects the opening of the housing and records this event in status register 4.2 Connections Figure 5.

  • Page 18: Connecting A Gas Meter With Encoder Output

    If the encoder counter decreases, the counter reading will not be taken over by UNIGAS 300. A status message of that event will be set in status register 1. If the decrease is temporary, UNIGAS 300 will take over it as soon as it has become larger than the last counter reading that had been taken over.

  • Page 19: Mounting And Connecting Cables

    4.4 Mounting and connecting cables All cables to be connected to UNIGAS 300 must be shielded. UNIGAS 300 comes with cable glands fitted with EMC shielding to which the shield is to be connected according the step-by-step mounting instruction below.
  • Page 20 Installation, operating and maintenance manual UNIGAS 300 7: Press the cable into the cable gland until 8: Press the seal into the cable gland and tighten it slightly the shield is in the cable gland 9: Tighten the nut and insert the cores into...

  • Page 21: Temperature Sensor

    When using the external pressure sensor, it is not permitted to cut the cable. Excess cable length must be tied The internal pressure sensor is stress free mounted in UNIGAS 300 and can be moved a little. Prevent damaging the pressure sensor when connecting the pressure. Secure it with a 15 mm spanner.
  • Page 22 Installation, operating and maintenance manual UNIGAS 300 For the purpose of testing, a Wigersma & Sikkema BDA 04 or are three-way valve can be placed in the pressure measuring line. UNIGAS 300 More info: Press key Figure 6. Mounting of BDA 04 with special connection adapter Mount a BDA 04 as follows: place the BDA 04 (1) next to the pressure sensor;...

  • Page 23: Sealing Layout

    Installation, operating and maintenance manual UNIGAS 300 5 Sealing layout Figure 7. Calibration lock and optional housing seal Figure 7 shows the positions for the seals: adhesive seal for calibration lock; adhesive seal for access to bottom PCB; adhesive seal for access to top PCB;...

  • Page 24: Control And Display

    Installation, operating and maintenance manual UNIGAS 300 6 Control and display UNIGAS 300 is simple to operate. Only four navigation keys allow easy navigation through the menu. ▼ ▲ ► Navigation keys allow navigation between screens and menu functions. Navigation keys ◄...
  • Page 25 Installation, operating and maintenance manual UNIGAS 300 Menu screen: Figure 9. Elements of the menu screen selected menu item menu title number of selected menu item ▼ ▲ indicator that more screens can be displayed if is actuated Menu items can be switched off with UNITOOL. In such case, they will not be shown on the display.
  • Page 26 Installation, operating and maintenance manual UNIGAS 300 Menu functions 1. Current values 1-1: Cf, C, Z, Z/Zb, p, t. ► 2. Parameters 2-1: CO , d, H , Z/Zbfix ► ▼ 2-2: tmeas, tb, pb ▼ 2-3: pmin, pmax, tmin, tmsx, pfix, tfix 3.
  • Page 27 Installation, operating and maintenance manual UNIGAS 300 Representation of status registers for menu items 4, 5, 6 and 8 UNIGAS 300 features three status registers: • status register 1; calibration-relevant alarms • status register 2; operation-relevant statuses • status register 3; other alarms and warnings A status register contains a maximum of 16 alarms or warnings.
  • Page 28 Installation, operating and maintenance manual UNIGAS 300 Status register 1; calibration relevant alarms St : 1 Presentation Presentation Description menu 8.1 menu 4, 5, 6 8, 9, A, B, E F CRC error occurred in program memory of the processor of...
  • Page 29 Installation, operating and maintenance manual UNIGAS 300 Status register 2; operational status St : 1 Presentation Presentation Description menu 8.2 menu 4, 5, 6 Error in Zb 8, 9, A, B, Error on calculation of Zb. This status bit is complementary...
  • Page 30 Installation, operating and maintenance manual UNIGAS 300 Status register 3; other alarms and warnings St : 1 Presentation Presentation Description menu 8.3 menu 4, 5, 6 No function Log book (O) 8, 9, A, B, Status log book is full; the oldest loggings will be full overwritten.

  • Page 31: Maintenance

    7 Maintenance 7.1 Adjusting Menu item 12 in UNIGAS 300 can be used to adjust the temperature sensor and/or the pressure sensor to increase the measurement accuracy. The pressure sensor can be adjusted with an offset value (p_offset). Modifying this value will result in that the measured pressure over the entire range is increased or decreased by this value.
  • Page 32 Installation, operating and maintenance manual UNIGAS 300 Replacing the temperature sensor See figure 10. unscrew the nut from the cable gland press with a finger on the clamping mechanism on the terminal strips to uncouple the cable connections of the temperature sensor.
  • Page 33 PCB unscrew the cable gland from pos 4, secure pos 4 with a socket wrench 21. Then take the external pressure sensor from UNIGAS 300. Prevent damaging the cable gland when securing the cable gland.

  • Page 34: Replacing The Battery

    17 s without battery (for safety reasons the display will indicate 10 s). During sleep mode, UNIGAS 300 will not carry out any conversion. The clock does keep running. After sleep mode UNIGAS 300 will activate itself and all functions will become active again.
  • Page 35 Installation, operating and maintenance manual UNIGAS 300 Only when a battery is replaced by another type of battery (for the values to be set, see above) the initial capacity shall be set subsequently. The setting is secured and can only be performed when the housing is opened.

  • Page 36: Sensor Pockets For Temperature Sensor

    Installation, operating and maintenance manual UNIGAS 300 9 Sensor pockets for temperature sensor Available models: DDG6004MHGB/08-2017/Rev.A2 Software version from M 1.3.40 and D 2.3.37...

  • Page 37: Counters And Registers

    UNIGAS 300 10 Counters and registers The counters and registers present in UNIGAS 300 are listed below. The name of each counter or register is indicated together with the OBIS code, the protection level and a summary description. Where applicable, the names used are in accordance with standard EN 12405-1 +A2.
  • Page 38 Installation, operating and maintenance manual UNIGAS 300 Processed counter readings; consumption values recorded for input 1 Name Unit Menu item OBIS code Description Qc1_5 7-1:43.1.1 Flow at measuring conditions based upon 5 minutes interval, total value Qc1_nx5 7-1:43.1.2 Flow at measuring conditions, based upon the moving...
  • Page 39 Installation, operating and maintenance manual UNIGAS 300 Objects/parameters that define the conversion, inputs and correction of the gas meter measuring error Protection level: calibration lock Name Unit Menu OBIS code Description item INP1DIV imp/m 7-1:0.7.2 Scaling factor for input 1 INPHFIDIV imp/m³...
  • Page 40 7-1:42.3.0 Fixed value for the pressure used for conversion for a UNIGAS 300 T or TZ version Fixed value used for conversion in the event of pressure sensor failure Fixed value used for conversion when the measured pressure comes outside the range pmin to pmax tfix °C...
  • Page 41 25 °C Z/Zbfix 7-1:53.3.0 Fixed value used for conversion in the event of alarm_Z_or_Zb Fixed value used for conversion for UNIGAS 300 T and PT version tmeasure 7-1:0.8.5 Measuring interval for measuring pressure and temperature and calculation of Z and conversion factor C °C...
  • Page 42 Installation, operating and maintenance manual UNIGAS 300 Peak registers Name Unit OBIS code Description pmax yesterday mbar C.95.1 Maximum value of pressure p, yesterday tmax yesterday °C C.95.2 Maximum value of temperature t, yesterday pmin yesterday mbar C.95.3 Minimum value of pressure p, yesterday tmin yesterday °C...
  • Page 43 C.6.3 Battery voltage of UNIGAS 300 Ah_used 10-1- C.6.1 Battery capacity used by UNIGAS 300. This value will be reset when the battery is replaced through menu item 10- Ah_new 10-1- C.6.4 Available capacity battery in new condition. See chapter 8;...
  • Page 44 Installation, operating and maintenance manual UNIGAS 300 Other settings for functions of UNIGAS 300 Protection level 1: password 2b Name Unit Menu item OBIS code Description C.91.1 Maximum deviation of the clock in UNIGAS 300 that may be corrected, if the correction value is greater than ns, status bit clock_set is written;...
  • Page 45 Installation, operating and maintenance manual UNIGAS 300 Protection level 1: password 2b Name Unit OBIS code Description Alarm C.93.4 Selector switch for relaying a status bit to alarm output 1. If the status is output 1 active and persistent, an impulse will be sent to the output every 5-min...

  • Page 46: Technical Specifications

    Installation, operating and maintenance manual UNIGAS 300 11 Technical specifications General Dimensions 194 x 120 x 70 mm Material Coated aluminium, suitable for installation in direct sunlight Weight Approx. 1.5 kg Cable glands 2 x Ø 2 – 5 mm 5 x Ø...
  • Page 47 Installation, operating and maintenance manual UNIGAS 300 Electrical power supply External power supply Voltage: 6 – 10 V DC Power consumption: ≤ 55 mA (depending on use of LF, encoder or HF) 100 mA peak (max 2 ms) Internal battery power...
  • Page 48 Installation, operating and maintenance manual UNIGAS 300 Signal inputs Number of inputs Connection Screw terminals NAMUR input HF or encoder input (for conversion), when set to Encoder , configurable to counter 1 or 2 Impulse input 1 LF input (for conversion), configurable to counter 1 or 2...
  • Page 49 Conversion algorithms - AGA NX19 modified (Gasunie) - SGERG TM5 1991 method 1-4 - AGA 8 gross method 1 Population Complete algorithm implemented in UNIGAS 300 Data storage Loggers: interval logger (5-min interval) (150 days, 43200 5-min recordings) V b1err...
  • Page 50 Installation, operating and maintenance manual UNIGAS 300 Signal outputs Number of outputs 4, configurable Impulse outputs 1 and 2 b1,err Maximum frequency 2 Hz Scaling factors 1 – 100 m /impulse, configurable Impulse width 100 - 150 ms (depending on switching voltage presented and...
  • Page 51 Installation, operating and maintenance manual UNIGAS 300 Status messages Exceeding of alarm Q Flow rate converted volume, configurable between 1 and 10,000 Exceeding of warning Q Flow rate converted volume, configurable between 1 and 10,000 Exceeding of alarm V Converted consumption in clock hour, configurable between 1 and...
  • Page 52 Installation, operating and maintenance manual UNIGAS 300 Compatibility Hardware - UNILOG GPRS and UNILOG 300 - ISC230B Software UNITOOL, suitable for operating systems Windows 2000, Windows XP, Windows Vista, Windows 7,8, 10 Standards /directives Overall - CE mark - RoHS...

  • Page 53: Correction Of Gas Meter Measuring Error

    The number of checkpoints may vary per gas meter. A maximum of ten checkpoints can be programmed in UNIGAS 300 for correction of the gas meter measuring error.

  • Page 54: Determination Of Volume Difference When Two Impulse Inputs Are Used

    When the interval logger is read out afterwards, the logging statuses show whether a volume difference has occurred. If so, the impulse input of the gas meter or the connection between the gas meter and UNIGAS 300 must be inspected.
  • Page 56 Wigersma & Sikkema B.V. PO Box 109 NL-6980 AC Doesburg Leigraafseweg 4 NL-6983 BP Doesburg The Netherlands TEL: +31 (0)313 – 47 19 98 FAX: +31 (0)313 – 47 32 90 info@wigersma-sikkema.com www.wigersma-sikkema.com...

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