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Summary of Contents for Elster Instromet TRZ
- Page 1 Instruction Manual Turbine Gas Meter and Quantometers Type TRZ TRZ2 TRZ-IFS Q...
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Page 2: Table Of Contents
Contents Intended use and field of application ............... 3 Technical data ......................4 Operating location ....................5 Staff .......................... 6 Legal declarations ....................6 Installation / connection.................... 6 Pulse generators ...................... 7 Pressure test point ....................7 Temperature test points ................... 8 Counter versions ...................... -
Page 3: Intended Use And Field Of Application
1. Intended use and field of application This product is intended for calibratable volumetric metering using turbine gas meters and for non-calibratable volumetric metering using quantometers of - flammable gases: natural gas/town gas/propane/butane/hydrogen - non-flammable gases: air/nitrogen/inert gases - suitable for use in potentially explosive atmospheres of Category 2 (Zone 1) of Class EX II 2 G c IIC Other fields of application / media on request This product is not intended... -
Page 4: Technical Data
NAMUR (II 2 G EEx ia IIC T4) or ATEX approval SCR (II 2 G EEx ib IIB T4) or M-Bus Meter types TRZ, Q all sizes LF pulse generator Optional or retrofittable INS-10, INS-11, INS-12 = 24 V, I = 50 mA, P = 0.25 VA,... -
Page 5: Operating Location
The length of the inlet and outlet section must be at least twice the nominal diameter for reasons relating to measuring accuracy. The inlet section must be designed as a straight pipe section with the same nominal diameter as the meter. Flow Typical inlet TRZ2 / TRZ-IFS disturbanc sections PTB approval PTB approval symbol... -
Page 6: Staff
4. 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 7: Pulse Generators
Hexagon screws and nuts for flanges in accordance with DIN EN 1092-1 Material / strength class Operating limits Standards Screw up to 40 bar DIN ISO 4014 down to -10°C DIN ISO 4032 CK 35 CK 35 up to 100 bar down to -10°C DIN 2510 Stud bolts with continuous thread for flanges... -
Page 8: Temperature Test Points
You can use a maximum of two temperature sensors for measuring the gas temperature in the meter housing for the meter sizes listed in the table below (quantometers cannot be fitted with thermowells in the meter housing; on TRZ//TRZ-IFS/TRZ2 thermowells are optional up to nominal diameter DN 200): Max. -
Page 9: Counter Versions
10. Counter versions The meter can be equipped with various counter versions: Counter head S1 - This is the standard version with an 8-digit mechanical roller counter - Provides universal read-off - Can be rotated up to 355° about its axis - Suitable for outdoor installation - Designed for LF pulse generators which can plugged on from the outside and which can be exchanged on site... -
Page 10: Commissioning
Connection of the encoder - Use only screened cable to connect the encoder and ensure that the pin assignment is correct (see sticker next to the cover of the terminal box). - When connecting the Namur interface, ensure that the 2-wire connection has the correct polarity. -
Page 11: Maintenance And Lubrication
13. Maintenance and lubrication Meters without oil pump are maintenance-free. Meters with oil pump must be lubricated. - You must open the cover of the supply tank before operating the oil pump’s hand lever. - Ensure that the supply tank has an adequate quantity of oil. -
Page 12: Annex A
GmbH (Same electr. 68307 Mannheim II 2 G EEx ia IIC T6 * system as Germany *) NJ 3,5-12 GK-N NJ 4-12 GK-N) NJ 1,5-6,5-N (TRZ DN 50 only) All rights reserved. Subject to technical modification. Page 12 of 13... -
Page 13: Annex B
17. Annex B Plastics used in turbine gas meters and quantometers, see also point 15 “Recycling and environmental protection” Plastic parts Abbreviation Chem. name Pulse generators PA 6.6 Polyamide Flow bodies PAMXD6 Polyarylamide Gears and small parts Polyoxymethylene Counter cover and counter Polycarbonate Counter bottom section Polyphthalamide...
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