Installation and Commissioning
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Manual TRZ 04 · EN04 · February, 1st 2017
17
1.5 Approvals
Type
TRZ 04
has been approved for custody transfer metering.
The following approvals have been obtained:
MID approval
No. T10417
PED approval
No. CE 0091
Independent whether the turbine meter can be remotely read (via the encoder) it is fitted
with a metrological controlled mechanical index. The reading of this index is the
measurement result that serves as the basis for billing.
Type
TRZ 04-K
has not been approved for custody transfer metering. The following
approvals have been obtained:
PED 2014/68/EU / DGRL2014/68/EU ISG-22-12-1980 (TRZ04)
ISG-22-12-1994
(TRZ04-K)
1.6 Standards / Guidelines
All RMG turbine meters have passed the disturbance measurements in compliance with
OIML Recommendation IR-32/89, Annex A, with slight and heavy flow disturbances.
Therefore, this meter design meets the requirements for installation in compliance with
Technical Guideline G13, Sec. 1. Test specifications are as laid down in PTB Testing
Instructions, Vol. 4, Volume gas meters, 2
nd
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. The validity of meter
proving is determined in the German Metering and Calibration Rules (MessEV, Edition 11,
December 2014) with the following periods:
Turbine meters without lubricator
8 years
Turbine meters with flow range 65 m3/h to
4.000
m3/h
12
years
Turbine meters with flow range > 4.000 m3/h to < 16.000 m3/h
16 years
Turbine meters with flow range
16.000
m3/h
unlimited
Introduction
