30
LRG 1x-6x - Installation & Operating Manual -
819878-00
Installation
ATTENTION
Incorrect installation can lead to destruction of the system or the conductivity
electrode.
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Inspect the sealing surfaces of respective tank threaded standpipes or flange covers to
ensure they are perfectly machined; see Fig. 12.
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Take care not to bend conductivity electrodes during installation!
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Avoid hard knocks against the measuring electrodes during installation.
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You must
not
install the terminal box
A
and the sheath
F
of the measuring electrode in the
thermal insulation of the boiler!
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■
Please note the installation dimensions of the conductivity electrode; see installation exam-
ples on pages 33 to 36.
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■
Check the boiler connection and flange during the preliminary boiler inspection.
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Adhere to the specified tightening torques.
Additional installation notes
ATTENTION
An electrode that is not fully immersed in the medium leads to incorrect measurement
results and jeopardises system safety.
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■
Install the conductivity electrode such that it is always fully immersed in the medium.
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As far as possible, always install the conductivity electrode below the admissible LW mark.
Measuring points (metallic objects) between the boiler wall and electrode
impair the measurement. Incorrect measurement results jeopardise the system’s safety.
Therefore, adhere to the distances mentioned subsequently.
LRG 16-60/LRG 17-60
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■
Provide spacing of approx. 30 mm between the lower end of the measuring tube and the
boiler wall, the smoke tubes, other metallic fittings and the low water level (LW).
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■
The measuring electrodes and the measuring tube cannot be shortened.
LRG 16-61
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Provide spacing of approx. 60 mm between the lower end of the measuring electrodes and
the boiler wall, the smoke tubes, other metallic fittings and the low water level (LW).