Product description
FLOWSIC600-XT · Operating Instructions · 8018846/1BHP/V2-1/2021-05 · © SICK Engineering GmbH
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2.2.1
Meter body
The meter body consists of a mid section for mounting the ultrasonic transducers, with
flanges on either end. The meter body is made of a single-piece forging, which is machined
on precision equipment to ensure high reproducibility of the geometric parameters.
The internal diameter, design of the sealing surface, and standard dimensions of the
flanges are in accordance with the specifications in the data sheet and key code. The meter
body material is chosen to suit customer requirements. Standard meter bodies are
available in carbon steel, low temperature carbon steel and stainless steel.
The meter bodies can be delivered in several nominal sizes (
).
2.2.2
Ultrasonic transducers
Ultrasonic transducers optimally tuned to system requirements are fitted on the
FLOWSIC600-XT. The high quality of the transducer design provides the basis for accurate
and highly stable transit time measurement of the ultrasonic signals with nanosecond
precision.
In order to meet as many application requirements as possible, an ultrasonic transducer
suitable for this application is used depending on process parameters gas pressure and
temperature, noise and gas composition. The basis for this is a sensor portfolio approved
within the framework of the EU Type Examination Certificate.
In principle, the installed ultrasonic transducers are already functional at ambient
pressure, which brings numerous advantages. Some selected transducer types, especially
for applications above 105 bar absolute pressure, are optimized for high pressure use to
ensure the measuring function. A minimum pressure of ≥ 5 bar(a) is usually required for
these sensor types.
2.2.3
Signal Processing Unit
The Signal Processing Unit contains all the electrical and electronic components for con
-
trolling the ultrasonic transducers. It generates transmission signals and analyzes the
received signals to calculate the measured values. The Signal Processing Unit also contains
several interfaces for communication with a PC or standardized process control system.
The meter counters, log books (errors, warnings, parameter changes) and data logs are
stored with a timestamp in a 30 second time grid,
On system restart, the meter levels that were last saved are restored as the start values for
the volume counters.
The Signal Processing Unit has a three-line LCD display for the current measured data and
diagnostics data. Selection is possibly by operation with pushbuttons on the display. Config
-
uration is not possible on the display, but only via the FLOWgate
TM
operating software.
The connection terminals for power supply and the I/O interfaces for communication with
the device are located in a separate terminal compartment of the Signal Processing Unit.
2.2.4
Integrated pressure and temperature sensor - geometry correction via pressure
and temperature
As an option, the FLOWSIC600-XT has an integrated pressure and temperature sensor. This
sensor measures the process parameters gas pressure and gas temperature at the same
time.
The values measured for pressure and temperature are used to correct the meter body
geometry and to determine the current Reynolds number.
The sensor is not subject to (re-)calibration intervals. Its measurement uncertainty is 1%
over the entire measuring range and is therefore sufficiently accurate for the geometry and
Reynolds number correction in electronics.
The integrated pressure and temperature sensor cannot be used for volume conversion.
