CONTENTS
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Manual TRZ 04 · EN04 · February, 1st 2017
2.5Type “G-D” meter head.................................................................33
2.5.1Permissible torques (type “G-D”).........................................................33
2.5.2Mechanical drive shaft coupling ..........................................................35
2.5.3Connection of additional equipment ....................................................35
2.5.4Pulse transmitters................................................................................37
2.5.5Pulse transmitters in the meter head (LF) ...........................................38
2.5.6Pulse transmitters in the measuring element (HF 2-D and HF 3-D)....38
2.5.7Tamper contact....................................................................................38
2.5.8Encoder ...............................................................................................38
2.6Specifications of the pulse transmitters......................................40
2.7Temperature measurement...........................................................41
2.8Commissioning..............................................................................41
2.8.1Filling with oil .......................................................................................41
2.8.2Connecting the gas flow ......................................................................41
3OPERATION....................................................................43
3.1Influences on the error of measurement due to operation ........43
3.1.1Intermittent operation...........................................................................43
3.1.2Influence of pulsations.........................................................................43
3.1.3Consequences.....................................................................................44
3.1.4Limiting values.....................................................................................44
3.2Lubrication.....................................................................................46
3.2.1Lubricator.............................................................................................46
3.2.2Specification for lubricating oils ...........................................................46
3.2.3Initial lubrication...................................................................................47
3.2.4Relubrication........................................................................................47
3.2.5Lubrication procedure..........................................................................48
3.2.6Maintenance........................................................................................49
4LABELLING.....................................................................50
5SPECIFICATIONS ...........................................................52
5.1Meas. ranges/Dimensions/Pressure classes of the TRZ 04.......52
5.2Meas. ranges/Dimensions/Pressure classes of TRZ 04-K.........53
5.3Qmin depending on the operating pressure in natural gas.......53
5.4Values for 2nd metering or meters without MID approval...........54
5.5Overview of the materials used....................................................55
ANNEX.....................................................................................56
Certificate for LF-, HF-sensors and Encoder...............................................56
Connector pin assignments ..........................................................................57
