Related Manuals for RMG TRZ 04
Summary of Contents for RMG TRZ 04
- Page 1 Turbine Meters TRZ 04 / TRZ 04-K OPERATING INSTRUCTIONS Reliable Measurements of Gas STATUS February, 1st 2017 Version: 04...
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Page 2: Table Of Contents
Technical Guideline G 13 ..............28 2.2.2 Perforated-plate straighteners ............. 29 2.2.3 Seals ....................30 2.2.4 Screws ....................31 Meter head ..................31 Standard version ................32 ......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 3 SPECIFICATIONS ............52 Meas. ranges/Dimensions/Pressure classes of the TRZ 04 ..52 Meas. ranges/Dimensions/Pressure classes of TRZ 04-K ..53 Q min depending on the operating pressure in natural gas ..53 ...
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Page 4: Introduction
Measurement Canada Measurement Instruments Directive min. minimum e.g. for example 1.1.2 Symbols The following symbols are used: 1, 2, … Marks steps within a work operation ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 5: Layout Of Instructions
This notice may also give to you tips on how to simplify your work. With this screen, you additionally receive further information on the device or the work process......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 6: Using The Turbine Meter Trz04
For safe operation, the safety instructions must be observed and followed. The manufacturer is not responsible for any damage that result as a consequence of not observing the operating instruction......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 7 As far as possible all the sharp edges have been eliminated on the device. Nevertheless, when working on the personal protective equipment must be used, which must provide the operator......................................Manual TRZ 04 · EN04 · February, 1st 2017...
- Page 8 Specialist personnel are persons that can verify a training / further education according to DIN VDE 0105, IEC 364 or a similar national standards......................................Manual TRZ 04 · EN04 · February, 1st 2017...
- Page 9 It is important to pay attention to the descriptions of the operation manual during the installation process. It is generally recommended to ask the RMG Service for any installation or removal. After working on pressurized components, a control of leaks must be carried out.
- Page 10 Recognize dangers that could be caused by the used flow medium. Training / education by RMG for working with gas measuring instruments. Education / instruction in all country-specific standards and directives to be observed for work that is to be carried out on the device.
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Page 11: Risk Assessment And Mitigation
The TRZ04 subjects to risks in its use, which were judged by qualified staff of the company RMG. Risks may arise due to high pressures, more rarely by too low. Even work outside the permissible temperature range can lead to danger. Invalid current and voltage values can trigger explosions in hazardous areas. -
Page 12: Validity Of The Manual
Make sure that the performance of the power connector corresponds to the data on the nameplate. Additionally observe any existing national regulations in the country. Use cable suitable for the cable glands......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 13 You must establish clearly the responsibilities for installation, operation, troubleshooting, maintenance and cleaning. Point out to your staff any risks involved when using the device......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 14: Transportation
Remaining rests of these protections may change the flow pattern and may result in a measurement error !! For any transport e.g. for recalibration we ask you to use these protections......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 15: Delivery
Avoid long periods of storage. Check the device after any storage for damage and functionality. Ask for a check from the RMG service after a storage period for the device of over one year. In this case please send the device to RMG. -
Page 16: Structure Of The Manual
The measurement of liquids is not possible and will destroy the device. The TRZ 04 is a flow rate meter, which can be used for custody transfer flow rate measurement. The TRZ 04 K, however, can only be used for operational volume flow rate measurements. - Page 17 The nominal diameters from DN 250 are special versions without MID approval for which RMG does not guarantee the availability (only on request). The TRZ 04 and TRZ 04-K are approved for the use in explosive areas; the indication is: (HF-Sensors) II 1G Ex ia IIC T4...
- Page 18 Notice The RMG TRZ 04 and TRZ 04-K can be operated in any mounting orientation up to DN200, from the DN 250 is a horizontal orientation is required. If a mounting orientation is specified when ordering, the meter has to be installed in this orientation.
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Page 19: Method Of Operation
(HF 3-D) or a cam of the reference wheel (HF 2-D) passes them. In this way, two pulse sequences are generated which are out of phase. The generated pulses can be further processed for secondary volume measurements or flow measurements......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 20: Approvals
Technical Guideline G13, Sec. 1. Test specifications are as laid down in PTB Testing Instructions, Vol. 4, Volume gas meters, 2 revised edition of 1992. The RMG turbine meters of type TRZ 04 comply with EN 12261 and the European Measuring Instrument Directive 2004/22/EG (MID). 1.7 Validity of meter proving The turbine meters of type TRZ 04 which are suitable for custody transfer metering must be subjected to subsequent meter proving at regular intervals. -
Page 21: Measuring Ranges
Q (see table on page 35). For types TRZ 04 this is the flow range where the gas meter must indicate correct values within the error limits specified by the German Metering and Calibration Rules. Turbine meters of type TRZ 04 have measuring ranges up to 1:30 even under atmospheric pressure. - Page 22 Density in kg/m 3 (Density of air at 20°C and 1.01325 bar 1.2 kg/m 3 ) : Standard density of the gas (standard density of natural gas 0,8 kg/m 3 ) ......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 23: Accuracy Of Measurement
Figure 2: Calibration curve of a turbine meter The reproducibility, i.e. the difference between the results of two measurements under identical conditions, is as follows: 0.1% TRZ 04, TRZ 04-K: ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 24: Temperature Ranges
Introduction Installation and Commissioning ......................................1.10 Temperature ranges For the standard designs of the turbine meters of types TRZ 04 and TRZ 04-K, the following temperature ranges are permitted: MID: -25°C to +55°C (TRZ 04 for custody transfer metering) PED 2014/68/EU: -20°C to +80°C... -
Page 25: Pressure Tap
A pressure tap has been provided to connect the pressure transducer of a volume corrector or a pressure gauge to read the pressure at measurement conditions prevailing inside the gas meter. This pressure tap is identified by “p ”......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 26: Using Gas Meters With Different Types Of Gases
Nitrogen 1.25 Standard Oxygen (100%) 1.43 Standard Special design Pentane 3.46 Standard Propane 2.02 Standard Propylene (gaseous) 1.92 Standard Special measuring element Sulphur dioxide 2.93 Special Special design Town gas ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 27: Installing The Device In The Pipeline
The stability of the flange connection for gaskets and bolts with certain material properties (see chapter 2.2.3 Seals and chapter 2.2.4 Screws) was proved to AD2000 regulations. Other screw / flange - variants were not verified......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 28: Installation And Commissioning
(see DVGW Guideline G 492 II and PTB Guideline G 13 An inlet pipe of a minimum of 2 x DN is required upstream of the RMG TRZ 04 turbine meter. The inlet pipe must be designed as a straight pipe section of the same nominal diameter as the gas meter. - Page 29 3 mm which is available from RMG. The p tap which is located on the RMG turbine meter is the pressure-measuring point which was used for taking the relevant pressure at measurement conditions during meter proving.
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Page 30: Operating Data
If more than one threshold value occurs at the same time, appropriate action must be taken in the station to improve the measuring conditions......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 31: Technical Guideline G 13
2.2.1 Technical Guideline G 13 The installation conditions for new stations complying with TRG G 13 and the simpler installation conditions for RMG turbine meters are compared in the table below. Type of flow Installation cond. Installation cond. Comments... -
Page 32: Perforated-Plate Straighteners
Plate clearance a 0.5 D Opening ratio m 0.2 m 0.4 Pressure loss, dyn. p 5 - 15 (c² / 2) 2 - 15 (c² / 2) ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 33: Seals
2.2.3 Seals It must be guaranteed that flange seals of RMG turbine meters do not protrude from the flange into the gas line. The stability of the flange connection has been verified for seals with the following maximum material properties of AD2000 guideline: −... -
Page 34: Screws
ASTM A320 Grade L7 made of material made of material 42CrMo4 25CrMo4 2.3 Meter head The RMG turbine meter TRZ 04 or TRZ 04-K is fitted with the meter head of type “G”......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 35: Standard Version
Rotatable by 355° without breaking a seal Notice The electrical connector must be covered by a cap closure or a connecting plug! Otherwise moisture may ingress into the meter head......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 36: Type "G-D" Meter Head
The direction of rotation of the drive shaft (with view on the drive shaft) is clockwise. For dimensions and instructions for the connection see the description “Mechanical drive shaft coupling”. Especially note the maximum permissible torques! 2.5.1 Permissible torques (type “G-D”) Nominal dia. Sizes [Nmm] ......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 37 Installation and Commissioning ......................................1:20 1:10 1:20 1:10 0,14 1000 1000 1600 11,5 15,7 37,3 1000 1600 1600 2500 ......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 38: Mechanical Drive Shaft Coupling
If no additional equipment is used, the drive shaft couplings are sealed. The rotation rates of the drive shaft coupling depend on the meter size (see table)......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 39 The rotation thus requires a slight effort. Encoder Figure 6: Type “G” meter head Notice If work has to be done on the meter head, please make sure that the official seals are not damaged......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 40: Pulse Transmitters
2.5.4 Pulse transmitters The TRZ 04 and TRZ 04-K turbine meters provide different sensors which supply volume pulses in a variety of frequency ranges. These pulses can be further processed by volume correctors or remote totalizers, for example. All pulse transmitters of the TRZ 04 have been approved for custody transfer metering. -
Page 41: Pulse Transmitters In The Meter Head (Lf)
2.5.5 Pulse transmitters in the meter head (LF) The meter heads of the RMG TRZ 04 and TRZ 04-K and turbine meters are fitted with two reed contacts as standard. The pulse value corresponds to the rotation rate U . See the indicating plate on the meter head for exact frequency data. - Page 42 08-M have to be grounded. The fixed installation of the intrinsically safe cables is absolutely required. You may find the connector pin assignments in the appendix Connector pin assignments on page 57......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 43: Specifications Of The Pulse Transmitters
51 mW Explosion protection acc. to ATEX marking II 2G Ex ib IIC T6 Notice The power rating in terms of the intrinsic safety, refer to the added certificates (s. Annex) ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 44: Temperature Measurement
3 x DN or a maximum of 600 mm downstream of the turbine meter. All turbine meters of types TRZ 04 from the nominal diameter of DN 80 (3") upwards can be fitted with a thermowell for a PT100 resistance thermometer. - Page 45 The housing must be completely closed. With the connection and the start-up of the encoder, observe the guidelines of the appropriate norms DIN EN 60079-0 and DIN EN 60079-14 ......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 46: Operation
(peak-to-peak) is the nominal diameter of the gas meter is a constant depending on standard density, velocity of sound, compressibility, pressure at base conditions, temperature, and station-specific parameters......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 47: Consequences
Flow variations with a high relative amplitude may occur. In the frequency range below 0.1 Hz, there is a quasi-steady flow which will not cause any distortion with the gas meters......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 48 5% (peak-to-peak) and relative pressure pulsations of less than 0.1% to 0.5% (peak-to-peak). These data should be regarded as approximate values depending on the flow rate and pulsation frequency involved......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 49: Lubrication
Shelf life of oil: The shelf life depends on the operating conditions (e.g. UV light, humidity ..). In principle the oil suffers no quality loss during the first 3-4 years......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 50: Initial Lubrication
If the gas meter is operated under the above-mentioned conditions, it is likely that its service life will be reduced. If you have questions to the relubrication in such cases please contact RMG......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 51: Lubrication Procedure
(delivered quantity: 0,114 cm3/stroke) Screw on knurled cover again. Make sure you stop screwing as soon as you can feel a resistance and leave a gap. Every 3 months 6 strokes ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 52: Maintenance
3.2.6 Maintenance RMG turbine meters are maintenance-free except that they require lubrication at regular intervals. Since all gas meters fitted with oil pumps are shipped with an empty oil storage tank, it is absolutely essential to fill the storage tank of the oil pump with oil and perform the initial lubrication before the gas meter is put into service (see section “Lubrication”). -
Page 53: Labelling
3. ground PIN 4 Re - Lubrication Indicating plate for relubrication of the At 3 month intervals, 2 strokes. main bearings Lubricant: 2-4°E at 25°C Supplementary information see operating instructions......................................Manual TRZ 04 · EN04 · February, 1st 2017... - Page 54 Lubricant: 2 - 4°E at 25°C The containervolume of 0,15 litre is sufficient for 3 months. Supplementary information see operating instructions. Arrow indicating the direction of flow Indication of the reference pressure tap ......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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Page 55: Specifications
PN pressure classes complying with DIN EN 1092, ANSI pressure classes complying with B16.5. Turbine meters for all pressure ranges and pipe sizes can be equipped with a thermowell to accommodate a resistance thermometer......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 56: Meas. Ranges/Dimensions/Pressure Classes Of Trz 04-K
Minimum flow rate for natural gas with corresponding minimum pressure MB 1:30 MB 1:50 MB 1:80 MB 1:100 MB 1:120 MB 1:160 1000 1000 1600 1000 1600 1600 2500 *: measuring range 1:20 ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 57: Values For 2 Nd Metering Or Meters Without Mid Approval
To get the Q value for other gas types you can calculate it using the formula in min, HP chapter 1.8.1 Extension of the measuring range or you can contact RMG. 5.4 Values for 2 metering or meters without MID... -
Page 58: Overview Of The Materials Used
Measuring element bea- Aluminum and/or stainless steel rings Ball bearings Stainless steel Shafts Stainless steel Gearing Stainless steel or plastic Magnetic coupling Stainless steel Meter head cap Plastic or aluminum Totalizer Plastic ......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 59: Annex
Type approval to PED 2014/68/EU Meter head with mechanical index, Encoder and LF pulse transmitters Turbine wheel Reference wheel Flow straightener HF pulse transmitters Figure 7: Sectional drawing of a turbine meter......................................Manual TRZ 04 · EN04 · February, 1st 2017... -
Page 60: Connector Pin Assignments
Vo - LF 2 HF - LF 1 not connected tamper contact LF 2 not connected not connected Cable diameter for HF 2-D, HF 3-D and ENCO 08: 6-8 mm......................................Manual TRZ 04 · EN04 · February, 1st 2017...
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