Electricity + Control July 2017

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35 Electricity + Control JULY 2017
round up FLOW MEASUREMENT + INSTRUMENTATION
Evolution in gas measurement
Ultrasonic gas flow meter
As the follow-up to the successful FLOWSIC600, the FLOWSIC600-
XT ultrasonic gas flow meter is setting new standards in its market
segment. With four device variants available, the FLOWSIC600-XT can
take on any challenge – whether it is being used as a stand-alone de-
vice or as part of a system solution – and delivers optimum measure-
ment performance.The FLOWSIC600 already provided absolute long-
term stability in extreme ambient conditions, and now the four device
variants in the FLOWSIC600-XT product family combine the features
of their predecessors with unprecedented usability. Throughout their
service life, they meet every requirement for safe, stable and custody
transfer gas quantity measurement.
The FLOWSIC600-XT’s trend-setting design houses some impres-
sive and innovative internal features: i-diagnostics for smart application
diagnostics with a built-in solution wizard and PowerInTechnology which
continues to take measurements for up to three weeks in the event of
a mains voltage failure. The FLOWSIC600-XT features an ideal combina-
tion of maximum measurement accuracy, long-term stability and unpar-
alleled operational safety, yet is not at all compli-
cated to use. The ultrasonic gas flow meters in
the FLOWSIC600-XT product family are designed
for custody transfer gas quantity measurements,
satisfy the requirements of every cur-
rent national and international stand-
ard, and are exceptionally simple to
integrate into conventional system
environments.
Enquiries: Doreen Cronje.Tel. +27
(0) 11 472 3733 or email Doreen.
High-temperature thermocouple with
added protection from sapphire glass
The newTC84 high-temperature thermocouple from WIKA features the
highest safety and a long service life. Its resilience is based on a sap-
phire protection tube in combination with a two-stage safety chamber.
The measuring instrument is also available in an ATEX and also an IECEx
certified version. Typical applications for the TC84 are gasification reac-
tors with process temperatures up to 1 700°C and pressure loads up to
65 bar or sulphur recovery units. In the patented design of the meas-
uring instrument, the precious-metal thermocouple is shielded from
damaging process influences through two protection tubes - through an
external tube from ceramic and an internal tube from monocrystalline
sapphire glass, which effectively delays the poisoning of the thermo-
couple. In the event of any failure, the dual sealing system of the safety
chamber prevents the escape of toxic media. The construction of the
thermocouple also follows economical principles. ATC84, damaged fol-
lowing extreme loading, can be repaired through the exchange of the
wetted parts; a completely new purchase is therefore not required. The
sapphire protection tube also eliminates the need for expensive purging
with inert gas, for example, to protect the thermocouple.
Enquiries:WIKA Instruments.Tel +27 (0) 11 621 0000 or email