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1.
GENERAL
The ST450EC sensing head is designed for the detection of toxic gasses at ppm level and
Oxygen. The ST450EC is designed for integration within a stationary gas detection system like
the Consilium CGS50/500 CGD50/500 systems.
The ST450EC implements a “one-man-calibration” design. All necessary calibration settings are
available on the sensing head. This calibration method offers the highest degree of accuracy
and can be carried out by one person. A secondary calibration procedure on the gas detection
control unit is not necessary.
The ST450EC sensing head features a LC-Display and control buttons. The display shows an up-
to-date “live” reading of the measured gas concentration and several status messages. The
control keys activates the calibration menu of the sensing head.
The ST450EC features an electrochemical sensor. The sensor is housed in a special,
replaceable enclosure. The ST450EC is available for the detection of a numerous types of
toxic gasses.
The ST450EC generates a standard 4-20mA output signal. The ST450EC also features a RS-485
communication interface, which enables communication capabilities for industrial
installations. The sensing head uses the MODBUS as its communication protocol.
The ST450EC sensing head is supplied with an Ex d/Ex t enclosure and includes an Ex d/Ex t
certified cable gland. The Ex d/Ex t sensor of the gas detector is replaceable and is available for
numerous toxic gasses and Oxygen.
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