Metreg MQMe Instructions For Use Manual
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Metreg MQMe Instructions For Use Manual

Quantometer with electronic meter index
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Instructions for Use
MQMe
Quantometer with
electronic meter index

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Summary of Contents for Metreg MQMe

  • Page 1 Instructions for Use MQMe Quantometer with electronic meter index...

  • Page 2: Table Of Contents

    Content Area of application for the manual..................4 Basic safety instructions ....................... 4 Manufacturer’s declaration ....................5 Applications for the MQMe Quantometer ................ 5 Design of the MQMe Quantometer ..................6 Technical Data ........................7 Installation ..........................9 Requirements and recommendations ....................9 Installation location/direction of flow of the gas ................
  • Page 3 13.2 Temperature measuring point......................... 32 14 Cleaning ..........................33 15 Transport and storage ......................33 16 Disposal ..........................33 17 Annex A ..........................34 18 Annex B ..........................35...

  • Page 4: Area Of Application For The Manual

    Article 5 of the German Occupational Safety Act (ArbSchG). Intended use MQMe Quantometers are designed for the measurement of the volume of combustible gases in the 1st, 2nd and 3rd families of gases (natural gas, town gas, propane, butane, other combustible gases), processed and purified biogas and air, as well as other inert, non-aggressive and non-explosive gases, that are used during operation.

  • Page 5: Manufacturer's Declaration

    Declaration of Conformity (see Annex A, page 34) Applications for the MQMe Quantometer The MQMe Quantometer is designed for metering the volume of natural gas used within a company and is approved in accordance with European Regulation 2014/68/EU. The MQMe Quantometer can be installed in potentially explosive atmospheres in category 1G (ATEX / IECEx Ex Zone 0) Ex ia II C T4 Ga (Annex B).

  • Page 6: Design Of The Mqme Quantometer

    Electronic meter index Magnetoresistive sensor Flow straightener Measuring unit housing Measuring unit Note: In the case of failure or damage: Repairs may only be carried out by qualified and authorized service centers. Fig. 1: Sectional drawing of the MQMe Quantometer...

  • Page 7: Technical Data

    Technical Data Meter type MQMe Quantometer Approval ATEX / IECEx Ex-Zone 1; Ex ia II C T4 Ga; PED 2014/68/EU Size G 10 to G 1000 Nominal diameter DN 25 (1“) to DN 150 (6“) Pressure rating PN 16 and ANSI CLASS 150, PN4 with screw connection...
  • Page 8 HF pulser (standard) Max. voltage 24 V Max. current 110 mA Max. resistance 5.1 Ω Max. switching frequency f 1000 Hz HF pulser Additional inductive sensor according to NAMUR (at the turbine wheel, only with external power supply) Supply voltage 8.2 VCC (internal resistance 1 kΩ) Power consumption (sensor covered) <1 mA...

  • Page 9: Installation

    Check that the turbine wheel rotates easily and stops smoothly, e.g. by blowing into the MQMe Quantometer. Ensure that there are no impurities, condensation, deposits or welding and drilling residues in the pipeline. It is especially important to clean any elbow pipes in vertical installations to prevent any damage if this dirt passes through the meter.

  • Page 10: Installation Location/Direction Of Flow Of The Gas

    Installation location/direction of flow of the gas The MQMe Quantometer can either be installed horizontally or vertically. Horizontal installation Fig. 2 Typical horizontal installation of the MQMe Quantometer (recommended) Vertical installation Fig. 3 Typical vertical installation of the MQMe Quantometer Note: The gas must flow in the direction of the arrow, see figure.

  • Page 11: Equipment Required For The Installation

    Equipment required for the installation • Suitable and certified gaskets according to DIN EN 1514-1 • Screws according to DIN 976 DIN ISO 4014 and ASME B 1.1 • Nuts according to DIN 934 DIN EN ISO 4032 and ASME B 1.1 •...

  • Page 12: Implementation

    25CrMo4 * Flange with threaded holes Implementation Installation of the MQMe Quantometer Clean the flange surfaces (e.g. with petroleum). The meter should preferably be installed horizontally with the meter index at the top. The gas must flow in the direction of the arrow indicated on the meter.
  • Page 13 Check the following when installing the meter The meter has been installed in the correct flow direction. The meter has been installed without any leaks. The meter has been installed without any tension. In a horizontal pipeline, the meter is installed with the meter index head in an ●...
  • Page 14 Changing the turning range The meter has a rotatable display with a turning range of 180° (A). The angle of rotation can be changed to the other 180° (B) by turning the base by 180°. Loosen the 3 radial stud screws (1) on the base of the meter index head.

  • Page 15: Commissioning

    The MQMe Quantometers is commissioned after installation. Commissioning of the MQMe Quantometer For MQMe Quantometers with an oil pump: Lubricate the meter in accordance with section 9.3, page 18: Slowly open the valve upstream of the meter (Fig. 2 and Fig. 3) to pressurize the pipeline up to the operating pressure.

  • Page 16: Replacing The Battery

    9.2 Replacing the battery Note: • Only special lithium batteries from Metreg Technologies GmbH may be used. • Lithium batteries are subject to special safety rules with respect to their handling, transport and storage. These rules must be observed. Especially due to their high energy density, there is risk of fire if the batteries are handled incorrectly.
  • Page 17 Seal Screw Cover Remove the seal (1) on the rear of the electronic meter index head. Remove the screws (2) on the rear of the electronic meter index head and unscrew the cover (3). Fig. 6 Safeguards on the rear cover GND terminal 3.6 V terminal Battery...

  • Page 18: Lubrication

    9, page 15. Process for the first lubrication It is recommended that you only use oil sold by Metreg Technologies. A pack of oil for the initial commissioning is supplied with the meter. Approved oils are: Shell Morlina S2 BL 5 or Shell Morlina S2 BL 10.

  • Page 19: Decommissioning

    Regular lubrication Lubricate every 2–3 months if the gas is clean and a filter has been installed upstream of the meter: DN 50: 2 strokes DN 80: 4 strokes DN 100: 4 strokes DN 150: 7 strokes. If the gas is dirty or contains moisture, the meter should be lubricated at least every month.

  • Page 20: Electronic Meter Index

    11 Electronic meter index 11.1 Display The display is a segment LCD display. The display is used to visualize the flow rate and volume under operating and standard conditions, the pressure and temperature, as well as the status of the battery. The display for the total volume of gas has 4 decimal places. The meter index has 9 digits.

  • Page 21: Buttons

    The process for changing the parameters is described in section 12, page 29. 11.3 Power supply Power is supplied to the MQMe Quantometer via an internal 3.6 V lithium battery with a power consumption of <0.7 mW. The calculated service life of the lithium battery under standard conditions is 5 years.

  • Page 22: Integrated Volume Corrector (Option)

    11.5 Integrated volume corrector (option) The electronic meter index on the MQMe Quantometer can be optionally fitted with an electronic volume corrector. In this case, the flow rate and volume of the gas under standard conditions are calculated in accordance with AGA NX-19. An external pressure and temperature sensor must be installed for these calculations.
  • Page 23 * Please note: HF and LF signals cannot be sent in parallel (simultaneously) Fig. 11 Variant 1 MQMe without 4–20 mA...
  • Page 24 * Please note: HF and LF signals cannot be sent in parallel (simultaneously) Fig. 12 Variant 2 MQMe 4–20 mA with external supply...
  • Page 25 * Please note: HF and LF signals cannot be sent in parallel (simultaneously) Fig. 13 Variant 3 MQMe 4–20 mA without external supply...
  • Page 26 * Please note: HF and LF signals cannot be sent in parallel (simultaneously) Fig. 14 Variant 4 MQMe without 4–20 mA and without external supply...
  • Page 27 * Please note: HF and LF signals cannot be sent in parallel (simultaneously) Fig. 15 Detailed switching example for the MQMe LF and HF signal...
  • Page 28 An LF signal is issued instead for the standard flow. Note: All of the pulsers are intrinsically safe. If the MQMe Quantometer is installed in a potentially explosive atmosphere, connections to devices such as a volume corrector or a station computer that are located outside of the potentially explosive atmosphere must be established using intrinsically safe circuits, see Fig.

  • Page 29: Setting The Parameters

    12 Setting the parameters 12.1 Preparation It is possible to change various settings directly on the meter. The 4 buttons located underneath the front screw-on cover on the meter index head can be used for this purpose, see section 11.2, page 21. To reach the buttons, proceed as follows: •...

  • Page 30: Changing The Measuring Range - 4 To 20 Ma Signal

    12.3 Changing the measuring range – 4 to 20 mA signal Set the desired measuring range using the 4 buttons. Action Display Input/output Press INC, then A_000000 5x SET and Flow at 20 mA 1x SHT. Example: A_002500 = 2500 m /h (flow at 20 mA) •...

  • Page 31: Resetting The Volume Counter

    Press RST. EEP_SuCC Data has been saved successfully EEP_Err Error when saving 12.5 Resetting the volume counter Reset the counter. Action Display Input/output Press SET. PASS_0000 User password 1 • No entry is required Press SET. 000000000 Nm Volume under measuring conditions •...

  • Page 32: Measuring Points

    13 Measuring points 13.1 Pressure measuring point There is a pressure measuring point (1) on the housing of the MQMe Quantometer for measuring the reference pressure. It is designed for a straight steel tube fitting according to DIN 2353 with a diameter of 6 mm.

  • Page 33: Cleaning

    ● 16 Disposal Particular care was taken during the design of the MQMe Quantometer to ensure that as few composite materials were used as possible. This design concept enables a high degree of recycling. Therefore, we are also willing to take back the device / product and dispose of it professionally.

  • Page 34: Annex A

    17 Annex A CE Declaration of Conformity...

  • Page 35: Annex B

    18 Annex B The external pulser, which directly scans the turbine wheel, has its own ATEX approval with the following markings: HF pulser Proximity switch according PTB 01 ATEX 2191 to NAMUR specifications II 1G Ex ia IIC T6 IECE x BVS 06.0003 ia IICT6/T5 Ga...
  • Page 36 Your contact: Metreg Technologies GmbH Tränkeweg 9 D-15517 Fürstenwalde Phone +49 (0) 3361 7602080 Fax +49 (0) 3361 7602081 info@metreg-technologies.de MQMe_Handbuch_EN_09/2021 © 2021 Metreg Technologies GmbH All rights reserved. Subject to technical changes. www.metreg-technologies.de...

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