SICK FLOWSIC550 User Manual

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8027872/1JTM/0-8/2023-05| SICKO P E R A T I N G I N S T R U C T I O N S | FLOWSIC550
Subject to change without notice
3 PRODUCT DESCRIPTION
3.6 Volume conversion (option)
The FLOWSIC550 gas flow meter with volume conversion captures the gas volume under
measurement conditions and converts it to a volume under base conditions.
Gas volume conversion runs as PTZ volume conversion. Measurement conditions are
recorded with the pressure and temperature sensors or entered as fixed values.
By default, measured values recording and subsequent calculation of the conversion factor
are performed every 30 seconds. The update interval can be adjusted.
Depending on the configuration, the compressibility factor (K-factor) is determined with
one of the following calculation methods or can be entered as a fixed value.
● Fixed value
● SGERG88
● AGA 8 Gross method 1
● AGA 8 Gross method 2
● AGA NX-19
● AGA NX-19 mod.
● AGA NX-19 mod. GOST
● GERG91 mod.
FLOWSIC550 checks the permissible entry limits of the parameters for the selected calcu-
lation method. If one of the entry values is outside the limit values, the FLOWSIC550
switches to malfunction state and uses the fixed value of the compressibility factor for
calculation of the basis volume.
A relative pressure sensor EDT23 or the functionally compatible successor model EDT96
and a temperature sensor EDT34 or the functionally compatible successor model EDT87
measure current measurement conditions and transfer the sensor type, measured value
as well as the sensor status via a digital interface.
The FLOWSIC550 reads the valid measuring range automatically and, periodically, the
current status and measured value.
A sensor is only activated for measurement when the configured serial number matches
the serial number transferred for the sensor.
If no sensor is detected or a sensor is not functioning correctly, the FLOWSIC550 automati-
cally uses the stored default value (= fixed value) of the state variable.
In this case, the FLOWSIC550 switches to malfunction state and, using the default value,
stores the volume under base conditions calculated for pressure or temperature in the error
volume counter.
If not specified otherwise, the FLOWSIC550 is supplied with the following standard
settings:
Unit system SI Imperial
T unit °C ° F
P unit bar psi
Symbols according to EN 12405 API
Calculation method SGERG88 AGA 8 Gross method 1
Reference conditions for
density and heating value
(T1/T2/p2)
25 °C/0 °C/1.01325 bar (a)
(T1/T2/p2)
60 °F/60 °F/14.7300 psi (a)
Basic pressure 1.01325 bar (a) 14.7300 psi (a)
Basic temperature 0 °C 60 °F

SICK FLOWSIC550 Specifications

General

Brand	SICK
Model	FLOWSIC550
Category	Measuring Instruments
Language	English