living
gas.
Metreg Technologies GmbH
MTM Turbine Gas Meters
Manual
Страница 1: ...living gas Metreg Technologies GmbH MTM Turbine Gas Meters Manual living gas living gas living ...
Страница 2: ...www metreg technologies de MTM_Manual_EN_16 01 2015 2014 Metreg Technologies GmbH Design www reidelsoltaugrafikdesign de All rights reserved Subject to technical changes ...
Страница 3: ...5 MTM Turbine Gas Meters Manual ...
Страница 4: ...on 8 8 Mounting Position Direction of Flow 9 9 Preliminary work 10 11 10 Lubrication and Maintenance of the MTMTurbine Gas Meter 12 11 Maintenance of the MTM Turbine Gas Meter 13 12 Commissioning of the MTM Turbine Gas Meter 13 13 Decommissioning of the MTM Turbine Gas Meter 13 14 Pulse Generators 14 15 15 Pressure Measuring Point 16 16 Temperature Measuring Point 16 17 Cleaning 17 18 Transport an...
Страница 5: ...al gas town gas propane butane and others purified and dried biogas as well as other inert non aggressive gases and non explosive gases and gas mixtures The permissible operating pressure range reaches up to 100 bar dependent on the design of the meter the temperature range runs from at least 5 C to 55 C The manufacturer is not liable for damage caused by improper or not designated use Safety at w...
Страница 6: ...G260 for combustible gases Further gases on request The MTM turbine meter cannot be used for Oxygen Acetylene and other aggressive gases as well as for explosive gases or gas mixtures The meter should not be used in applications with the presence of strong pulsations These conditions will result in an increased error and may significantly decrease the meter s lifetime 5 Design of the MTM Turbine G...
Страница 7: ...0 0 15 Qmax Meter index Number of indexes 1 Number of digit rollers per index 8 Meter index head Composite optional Aluminum Protection class IP 65 Pulse generators LF pulse generator 1 LF reed contact add 1 LF as option Contact type make contact normally open Max contact load 10 W Max switching voltage 50 VDC 200 VDC Max switching current 0 1 A 0 5 A Resistance 100 Ω in series to reed contact fma...
Страница 8: ...ulsating flow will increase the measuring error They arise for example during frequently switching on off of solenoid valves The pressure impulses by opening the valve very fast may damage the ball bearings of the turbine rotor and cause failure of the turbine meter Filter small mesh size should be installed upstream of the meter to protect it from any contamination suspended particles 50 µm durin...
Страница 9: ... 8 Mounting Position Direction of Flow There are two positions of installation possible for the turbine gas meter Horizontal installation or vertical installation Figure 2 Typical horizontal installation of the MTM turbine gas meter recommended Figure 3 Typical vertical installation of the MTM turbine gas meter only DN 150 Notice Preferably the meter should be installed horizontally with index hea...
Страница 10: ... condensate dirt and debris are in the pipe Especially the cleaning of elbows in vertical installations is important to prevent damage of the meter by contaminations dirt and debris passing A cone shaped start up sieve may be installed for initial operation After 4 6 weeks it should be removed to avoid perturbations of the flow profile with resulting decrease of the accuracy 6 Make sure that there...
Страница 11: ...r is not allowed DN Pressure Flanges according ANSI B 16 5 mm ANSI Class Stud bolts with continuous thread and nuts Operating Strength class Strength class conditions of the srews nuts screws and nuts 25 600 25 C ASTM A 193 Grade B7 ASTM A 194 Grade 2H 50 600 25 C ASTM A 193 Grade B7 ASTM A 194 Grade 2H 80 600 25 C ASTM A 193 Grade B7 ASTM A 194 Grade 2H 100 600 25 C ASTM A 193 Grade B7 ASTM A 194...
Страница 12: ...c Fill in the oil before commissioning the meter and after the correct installation of the meter described in chapter 7 and 8 d Fill an adequate quantity of oil in the supply tank and then horizontally pull the hand lever dependent on the size of the meter DN 50 3 strokes DN 80 5 strokes DN 100 5 strokes DN 150 9 strokes DN 200 18 strokes DN 250 28 strokes DN 300 28 strokes e When the lubrication ...
Страница 13: ...s MTMTurbinenradgaszählers erfolgt nach der Installation und ggf einem Lecktest der Flanschverbindungen 1 The work has to be done under survey of an appointed person who coordinates and controls the activities 2 Open slowly the upstream valve fig 2 and fig 3 to pressurize the pipe until operation pressure is achieved 3 The rate of pressure increase shall not exceed 350 mbar s 4 At operation pressu...
Страница 14: ...meter As an option up to two high frequency HF pulse generators can be installed onto the meter The function of these two HF pulsers is the determination of the actual gas flow in high resolution The HF pulsers follow NAMUR specification and are typically connected to the inputs of flow computers or appropriately equipped volume correctors For the connection use shielded cable The blades of the tu...
Страница 15: ...f aluminium The connection of the LF pulser unit is designed via a plug connection 1 LF pulser for flow measurement o Pin 5 Blue o Pin 6 Grey o Pin 7 Pink 2 LF pulser for flow measurement option o Pin 5 Blue o Pin 6 Grey o Pin 7 Pink 1 LF pulser as anti tampering contact o Pin 1 Yellow o Pin 2 White The connection of the HF pulser option is designed via a plug connection o Pin 4 Red o Pin 3 Black ...
Страница 16: ...nce to DIN 2353 Figure 8 Location of the pressure test point 16 Temperature Measuring Point There is one temperature test point as shown in figure 9 The temperature tap is marked with tm The temperature tap is locked with a screw G In case of using the temperature tap remove the plug screw and replace it by a temperature pocket with an integral thread of G The temperature pocket is designed for a ...
Страница 17: ... from rotating or slipping Be careful during loading and transportation to or from the measuring point Some requirements for transportation and storage of the meter are The meter is on both flanges covered with a protection cover For transportation the oil pump if installed is not filled with oil Prevent from rain and moisture Prevent from mechanical vibrations or impacts Unpack and check o The pa...
Страница 18: ...19 Annex A CE Declaration of Conformity 18 Metreg Technologies GmbH ...
Страница 19: ... of the pulse generators LF pulse generator Reed switch Connection only magnetically to intrinsically safe circuits triggered when installed in hazardous area HF pulse generator Proximity switch PTB 01 ATEX 2191 acc NAMUR specs II 1G Ex ia IIC T6 Ga Ta 20 70 C II 1G Ex ia IIC T5 Ga Ta 20 80 C II 1D Ex ia IIIC T90 C Da Ta 20 70 C II 1D Ex ia IIIC T100 C Da Ta 20 80 C 19 ...
Страница 20: ...www metreg technologies de Your contacts Metreg Technologies GmbH Tränkeweg 9 15517 Fürstenwalde Germany Telephone 49 0 3361 733900 0 Fax 49 0 3361 733900 1 info metreg technologies de ...
