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8027872/1JTM/0-8/2023-05| SICK O P E R A T I N G I N S T R U C TI O N S | FLOWSIC550
Subject to change without notice
FOR YOUR SAFETY 2
2.3 Intended use
The FLOWSIC550 serves for measuring the gas volume, volume flow rate and gas velocity
of natural gas in pipelines.
The FLOWSIC550 with optional volume conversion serves for measuring the gas volume
and converting the gas volume measured to base conditions as well as registering data on
totalizer levels, maximums and other data.
2.4 Operation in potentially explosive atmospheres
The FLOWSIC550 is designed for use in potentially explosive atmospheres according to the
respective device version, see “Technical data”, page 42.
2.5 Restrictions of use
▸ Refer to the type plate for the configuration of your measuring device.
▸ Check the measuring device is suitably equipped for your application (e.g. gas condi-
tions)
▸ The measuring device is suitable for use in pressurized lines within the combination of
maximum allowable Temperature and pressure specified on the type plate.
▸ For use at temperatures below the maximum allowable temperature, the maximum
allowable pressure can be increased within the values as following:
▸ Pressure ratings for temperatures between 38 °C (100°F) and maximum allowable tem-
perature can be determined through interpolation.
▸ It is the user's responsibility to ensure these maximum allowable values are not
exceeded during operation.
2.6 Responsibility of user
The measuring device may only be operated by skilled persons who, knowledgeable of rele-
vant regulations, and able to assess potential hazards related to its operation.
Skilled persons are persons according to DIN VDE 0105, DIN VDE 1000-10 or IEC 60050-
826 or directly comparable standards.
WARNING: Risk of ignition through impacts or friction
The ultrasonic transducers are manufactured from titanium. In rare cases, ignition
sources due to impact or friction sparks could occur.
The user shall ensure that the ultrasonic transducers are suitably protected against
danger from impact or friction
– Class 300 (ASME B16.5): 51 bar(g) for -40°C ... 38 °C
740 psi(g) for -40°F...100°F
– Class 600 (ASME B16.5): 102 bar(g) for -40°C ... 38 °C
1480psi(g) for -40°F...100°F
NOTICE:
The device has been tested for electromagnetic compatibility in industrial environments
according to IEC 61326-1. Additional measures may be required for use in electromag-
netic environments with higher interference levels.
NOTICE:
Skilled persons must have exact knowledge on hazards arising from operation, e.g.
through hot, toxic, explosive gases or gases under pressure, gas-liquid mixtures or other
media as well as adequate knowledge of the measuring system gained through training.
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