FLK Gas Sampling System - MPIP - Free

SQ250 FLK Gas Sampling System
The four-way ball valve is moved to the "Closed" position with the probe withdrawn.
The measuring gas pump is only in operation with the probe inserted, when a minimum coolant temperature of 130°C has
been reached and when the measuring gas filter has reached its operating temperature.
3.2.4 Heat exchanger unit
See also the operating manual for the heat exchanger unit.
After checking the electrical functions, the signal interchange to the controller and the coolant lines, the following settings for
the coolant circuit must be checked and adjusted.
Settings on the limit monitor:
Coolant temperature, min.: 130°C
Fan starts at : 180°
Coolant temperature, max.: 220°C
Switching hysteresis 2°C
Set value for three-way valve: 140°C
The precise settings are derived from the operating values over a longer period of time and may vary from system to system.
Note:
Do not open the shut-off valves on the venting containers when the pump is stationary unless really
necessary, because otherwise air will enter the closed coolant circuit.
3.2.5 Probe with retraction device
In order to be able to begin with the insertion of the probe, the parameters in the PLC controller must be checked according to
the "Controller" operating manual.
Danger: During automatic or manual traversing of the probe, no unauthorized personnel should be present in the
immediate vicinity of the probe, the kiln connection pipe and the retraction device.
Note: The "EXTERNAL" release must be present ("1" signal on the PLC Input 4.6).
Then a start can be made on the insertion of the probe into the kiln or precalcination chamber.
• Set the manual / automatic switch to manual;
• Uninterrupted pressing of the button "Insert probe";
It is essential to check the following:
• all moving parts such as coolant hoses, measuring gas line and electrical feeders.
• the open Kiln connection piece
• the proper functioning of the dust blow-back system (TMR 3,4,11)
• coolant flow (heat exchanger unit, Lamp H6), flow measurement always on max. indication
• coolant level min. (heat exchanger unit, Lamp H7)
• pump fault (heat exchanger unit, Lamp H2)
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