Related Manuals for Elster IRM-3 DUO G400
Summary of Contents for Elster IRM-3 DUO G400
- Page 1 Instruction Manual Rotary Gas Meters Type IRM-3 DUO IRM-3 DUO G400 / G650 IRM-3 DUO G1000 IRM-3 DUO 23M / 38M IRM-3 DUO 56M...
- Page 2 Contents Staff....................3 Legal declarations................. 3 Intended use and field of application.......... 4 Technical data................5 Operating location................. 6 Installation position, flow direction and wall clearance ....7 Installation / Connection ............... 9 Lubrication and maintenance............10 Commissioning ................13 Function check ................
- Page 3 1. Staff These instructions are aimed at staff who have adequate specialist and technical knowledge (in Germany, for instance, in accordance with DVGW Codes of Practice 492 and 495 or comparable technical regulations) on the basis of their training and experience in the sector of energy and gas distribution.
- Page 4 6 - Synchronizing gears Remark: A volume corrector can be build on this rotary gas meter (optional). Please contact your Elster-Instromet Customer Service (Tel. +49 (0)6134-605-0 / -346) for assistance in commissioning, maintenance and installation of encoders, pulse generators and...
- Page 5 4. Technical data Rotary gas meters in accordance with MID Directive 2004/22/EC, according to OIML R 137-1 Type: IRM-3 DUO Size: G400 to G1000 23M to 56M Nominal diameter: DN 100 to DN 200 4” to 8” Pressure ratings: PN 10/16 or CLASS 150 Temperature ranges: - gas / ambient / storage -20 ˚C to +60 ˚C...
- Page 6 5. Operating location If you ... – wish to mix in odorisation agents or – use solenoid valves, please always fit them only downstream of the meter. Otherwise, the device may be damaged. Ensure that the meter is placed on a vibration free site. Prolonged and violent vibrations and shocks (pipe vibrations, road movement, earth tremors, etc.) can affect the body strength and / or the performance of the meter.
- Page 7 6. Installation position, flow direction and wall clearance Gas can be passed through the Type IRM-3 DUO rotary gas meter horizontally and vertically. (see e.g. figures 8 and 9). Check the flow direction, as indicated on the index. When the flow direction is indicated incorrectly, the position of the cover plate can be changed (see figure 1a).
- Page 8 The meter is equipped with oil-level gauge glasses on two sides, so the meter must be mounted with a minimum distance (A) or (B) from the centre of the pipe to the wall, in order to facilitate access for maintenance (Figure 2a / 2b and Table 1). Figure 2b: IRM-3 DUO Reference meter Figure 2a: IRM-3 DUO Horizontal (L-R and R-L)
- Page 9 7. Installation / Connection Warning! Never clean the plastic hood of the index with a dry cloth owing to the risk of explosion resulting from electrostatic discharge! Please only ever use an adequately moistened cloth! When removing the product from the packaging ensure that it is lifted by using the lifting lugs mounted on the meter only.
- Page 10 90°, including gas meter (see par.6). The piston axes of the meter must still be horizontal. We recommend that you contact our Elster-Instromet Customer Service (Tel. +49 (0)6134-605-0 / -346) for such conversion work. 8. Lubrication and maintenance –...
- Page 11 – In a number of cases oil injection can be simplified by slipping the enclosed tube over the nipple, especially when the meter is near a wall. If necessary, use in this case a mirror to detect the oil level. (see Figure 4). Meter position horizontal Meter position vertical (A) = Filling plug (1/4”...
- Page 12 – Re-close all oil filler plugs (seal using O-rings). – The time interval for checking the oil level depends on the individual operating conditions and gas qualities. Generally, check the oil level every 2 months. If the operator’s experience shows otherwise, then the inspection intervals can be extended.
- Page 13 9. Commissioning In order not to damage the meter, – slowly fill the system until operating pressure is reached. The pressure change should never exceed 350 mbar/sec. You should use a bypass line for filling (recommendation: 12 mm pipe diameter). –...
- Page 14 10. Function check by means of pressure loss measurement The correct function of the rotary gas meter can be inferred by measuring the pressure loss. If the pressure loss has increased by more than 50% compared to the value at the initial start-up, then there may be dirt, for example, in the measuring chamber that can lead to an incorrect result being obtained.
- Page 15 11. Pulse generators 1. Standard LF Pulse generators on IRM-3 DUO Standard, four LF pulse generators type Reed contact (Normally Open), are integrated in the Universal Index on two separate connection sockets. Additional there is a monitoring Reed switch (Normally Closed) for detection of line break or interferences caused by magnetic fields.
- Page 16 Remark: See for electrical connection plan, Annex G. Pulse generators for subsequent installation are also available. HF pulse generators (Type REPROX) can, however, be fitted only by the Elster- Instromet Customer Service (Tel. +49 (0)6134-605-0 / -346). By contrast, you can connect the plug yourself, as described above.
- Page 17 EN 10216-5. Note: We recommend that you use original Parker-Ermeto pipe unions only. We recommend that you contact our Elster-Instromet Customer Service (Tel. +49 (0)6134-605-0 / -346) for conversion work and when installing additional devices.
- Page 18 14. Index versions (Type IRM-3 DUO) The meter can be equipped with various index versions: Universal Index (standard) – This is the standard version and it has two 8-digit mechanical roller indexes (depending on the flow direction, one index will be covered). Universal Index –...
- Page 19 Instrument-drive (optional) – This is a stand alone unit to provide a mechanical input into e.g volume corrector. Maximum torque “Instrument-drive”: See type plate. Instrument Drive 15. Absolute ENCODER S1D (Optional) – This has the same features as index head S1D. –...
- Page 20 – The assignment of the lower two terminals in the connection box of the encoder index determines the direction of gas flow: Bridge on lower terminals: Upper index is activated. Flow direction: From right to left or from bottom to top. Figure 8: Flow from right to left or from bottom to top, lower terminals assigned Lower terminals unassigned: Lower index is activated.
- Page 21 The Instapak® foam packaging items are recyclable and can be reused. Plastic sheeting and strips/bands are also made of recyclable plastic. At Elster- Instromet, subsequent recycling and disposal are already elements of the product development process. When selecting the materials, we allow for reusability of the...
- Page 22 Certificate EC Directive 94/9/EC (ATEX) IECEx Scheme Identification of the pulse generators LF pulse Reed contacts: TÜV 03 ATEX 2123 Elster GmbH generators 55252 Mainz-Kastel KSK-1A81 -0810 Ex marking: Germany IN-S.. KSK-1C97-1020 II 2 G EEx ia IIC T4...
- Page 23 Certificate EC Directive 94/9/EC (ATEX) IECEx Scheme Identification of the pulse generators HF pulse Inductive proximity KEMA 03 ATEX 1188X Elster-Instromet B.V. Generators switches: 7064 KA Silvode Ex marking: Netherlands REPROX Bi3-ISM-Y1 II 1 G Ex ia IIC T6 IECEx KEM 09.0091X...
- Page 24 19. Annex B Synthetic materials used in rotary gas meters, see also section 17 “Recycling and Environmental Protection”. Synthetic parts Abbreviation Chem. name Gear assembly Polyoxymethylene Gears and small parts Polyoxymethylene Counter cover and counter Polycarbonate Counter bottom section Polyphthalamide Digit rollers PA12 Polyamide...
- Page 25 20. Annex C...
- Page 26 21. Annex D Pressure loss IRM-3 DUO The pressure loss values refer to natural gas (0.8 kg/m ) at atmospheric pressure. When using natural gas at higher operating pressures, these values must be multiplied by the absolute pressure (in bar). Pressure loss IRM-3 DUO ( at atmosperic pressure with natural gas: 0,8 kg/m 1000...
- Page 27 Pressure loss cone strainers (250 microns) The pressure loss values refer to natural gas (0.8 kg/m ) at atmospheric pressure. Pressure loss Cone strainers [250 microns] with natural gas (atmospheric conditions) 1000 1000 10000 Flowrate [m Ref: LHR10003...
- Page 28 22. Annex E Dimensions of rotary gas meters type IRM-3 DUO G400 - G650 23M - 38M G1000 Flanges according EN 1092-1 Flow range WT [kg] G400 4" G400 6" G650 6" 12 / (8) G1000 8" All dimensions are in mm unless otherwise indicated // No. = Number of bolts (*): Applies to PN16 / (PN10) Flanges according ASME B16.5 Flow range...
- Page 29 Dimensions of rotary gas meters type IRM-3 DUO-ID (with Instrument-Drive) G400 - G650 23M - 38M G1000 Flanges according EN 1092-1 Flow range WT [kg] G400 4" G400 6" G650 6" G1000 8" 12 / (8) All dimensions are in mm unless otherwise indicated // No. = Number of bolts (*): Applies to PN16 / (or PN10) Flanges according ASME B16.5 Flow range...
- Page 30 23. Annex F Electrical output pulse data Pulse values IRM-3 DUO IRM-3 DUO IRM-3-DUO / [m Low frequency pulses High frequency pulses (option) Meter size Volume LF pulse value pulse value Frequency [imp/m [imp/m (DUO) at Qmax [Hz] G400 5,53 G650 8,849 G1000...
- Page 31 24. Annex G Electrical connection plan...
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