Structure And Function; Device Description - Honeywell QA Mode D'emploi

Honeywell

2. Structure and function

Operating principle
The gas flowing into the meter causes the turbine wheel to turn, with the
number of revolutions being proportional to the operating volume passing
through the meter. The gas flowing into the meter is accelerated by the
specially designed flow conditioner which is located at the meter inlet.
The speed of the rotating turbine wheel is reduced by a gear assembly. Via a
magnetic coupling, a transmission shaft connected to this gear assembly
drives the 7-digit mechanical roller index in the unpressurized index head or
a pulse generator disc which is scanned by the electronic index.

2.1 Device description

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Fig. 1 | Quantometer QA
1 Meter housing
2 Measuring cartridge
3 Mechanical index
Please contact your local Honeywell Customer Service Centre for assistance
in commissioning, maintenance and installation of pulse generators and
volume conversion devices for instance. Repairs may be carried out only by
authorized workshops.
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4 Electronic index
5 LF pulse generator (optional)
6 MF pulse generator (optional)
73025026a © Elster GmbH | All rights reserved. Subject to modification
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