15
Note
n
For the approval of the boiler standpipe the relevant regulations must be considered.
n
Refer to page 18 for typical installation examples.
n
Install the level switch only in a vertical position.
n
The seating surfaces of the standpipe or the flange provided on the vessel must be
accurately machined,
Fig. 6
!
n
Do not bend electrode tips when mounting!
n
Do not subject electrode tips to physical shocks.
n
At least 30 mm of the insulating tube must remain on the electrode tips.
n
Use only the supplied joint ring!
33 x 39, form D, DIN 7603, 1.4301, bright annealed
n
Do not lag electrode body above the hexagonal section!
n
Do not lag the electrode body above the hexagonal part!
n
Note that the max. thermal insulation of the boiler is 40 mm (see
Fig. 5
).
n
Do not insulate electrode thread with hemp or PTFE tape!
n
Do not apply conductive paste or grease to the electrode thread!
n
Make sure that the air distance between the electrode tips and earth (flange, vessel
wall) is not less than 14 mm!
Fig. 7, 8
n
Observe the minimum distances for the installation of the electrode!
n
The specified torques must be strictly observed.
Attention
Tools
n
Open-end spanner A.F. 41, DIN 3110, ISO 3318
n
Scriber
n
Bolt cutter
n
Flat file, medium cut 2 , DIN 7261, form A
n
Screwdriver, size 2
n
Screwdriver, size 2.5, completely insulated according to VDE 0680
Installation
