SYSTRONIK
Technical specifications
EUROLYZER® ST / STe
11
3.4
Measuring methods
Table 4: Measuring procedure
Function
Explanation
Temperature meas-
urement
Thermocouple NiCr-Ni (type K)
O
2
measurement
Electrochemical measuring cell
CO measurement
Electrochemical measuring cell
NO measurement (op-
tion)
Electrochemical measuring cell
Pressure/draft
Piezo-resistive sensor with internal tem-
perature compensation
Measuring duration
Short-term, stable measurements of max.
60 minutes are possible, followed by a
new calibration phase with ambient air.
Flue gas measurement Via an external water separator and filter,
the flue gas is supplied to the sensors by
means of a gas pump.
Sensor calibration
After switching on the instrument, there is
a calibration phase that takes 30 seconds
after a cold start.
CO Sensor protection
The standard CO sensor with dynamic H
2
compensation is protected automatically
since the gas pump switches off when the
maximum measuring range limit is
reached (> 9,999 ppm). The measure-
ment starts again automatically when the
sensor resets.
Flue gas sampling
Flue gas sampling is done by means of a
probe which enables either a “one-point
measurement” (combi probe) or a “multi-
point measurement” (multi-hole probe).
4
Technical specifications
Table 5: Device description
Parameter
Value
General specifications
