Electricity + Control May 2015

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New sensor for temperature control of cement
Instrotech, local distributor of process control instrumentation and specialised systems, has
announced the availability of the Optris CSmicro LT pyrometer, specifically for application in
the measurement and control of temperature in cement manufacture.
Temperature is a critically importance component in the process of making of concrete, and
specifically, the importance of controlling the temperature before the concrete is deposited.
Optimal temperature of the concrete must fall within the range of +5 °C and +55 °C, a factor
which greatly influences the final characteristics of concrete and performance (cracking, resist-
ance and wear and tear). Concrete temperature is directly related to the development of strength
and fresh concrete can be damaged when exposed to very low or very high temperatures. Key
factors to control during the pouring of concrete related with temperature:
• Warm weather affects speed limits evaporation
• Cold weather inhibits the hydration process
The Optris CSmicro LT is equipped with an innovative, miniaturised stainless steel measuring
head, the optimally suited for installation in limited spaces. Its small size and its temperature
resistance up to 120 °Cmake the mechanic integration of the measuring head especially cost-ef-
ficient.The intelligent LED display works optionally as alarm signal, target support, self-diagnosis
or temperature-code display.The placement of electronic components within the cable allows
for a high temperature resist-
ance of the measuring head. It
measures temperature in the
range of -40 °C to 1 030 °C;
the spectral range is eight to
14 µm and the response time
is 30 ms – 999 s. The unit can
be optimally installed on ce-
ment pumps, mixer trucks and
cement silos.
Enquiries: Scott Hunter.
Tel. 010 595 1831 or email
ROUND UP ANALYTICAL INSTRUMENTATION
World’s smallest IR camera
Optris, specialists in non-contact tempera-
ture measurement, have launched the
OPTRIS PI 640 - the smallest measuring
video graphics array (VGA) infrared
camera, worldwide. With an optical
resolution of 640 x 480 pixels, the PI 640
delivers pin-sharp radiometric pictures and
videos in real time.
With a body sized 45 x 56 x 90 mm and
weighing only 320 grams (lens included),
the PI 640 counts among the most compact
thermal imaging cameras on the market.
It can be delivered with industrial thermal
imager equipment and comes with an ex-
tensive licence-free thermography software
which enables users to monitor and docu-
ment measurements and to edit infrared
video imagery.
Key specifications of the PI 640 are its
temperature range of between -20 °C and
900 °C, the spectral range of 7,5 to 13 µm and
the frame rate of 32 Hz.
Enquiries: Scott Hunter.Tel. 010 595 1831 or