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5
Operation
Thermal mass flow sensor
Familiarise yourself with the operation and programming of the
sensor. The sensor is calibrated ex factory and provided with
default settings for each nominal width. Do not inadvertently
change these.
5.1.
Operation and display elements
The following illustration shows the control and display unit of the
sensor from above.
Number
Type
1
Green LED
2
Green LED
3
Green LED
Green LED
4
steady
flashing
5
Green LED
6
Green LED
7
Yellow LED
Description
Volumetric flow rate [m³/min] (LED l/min
and LED 10³ lights up)
Flow rate [m³/h]
Average speed [m/s]
Current consumption quantity since the last
reset [m³]
Consumption quantity before the last reset
in m³
Gas temperature [°C]
10³
= the displayed value must be multiplied
by 1000
SP2
= display of the switch status: LED
illuminates when the respective output is
switched through
5 Operation
27
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