11
Note
The boiler connection with flange must be tested during the preliminary boiler
inspection.
Refer to pages 13 and 14 for typical installation examples.
LRGT 16-1 (for marine applications)
Max. admissible measuring/installed length: 400 mm.
When installing the conductivity transmitter in a steam boiler, make sure it is securely
fixed in place and cannot be unscrewed inadvertently.
Installation
Attention
Install the conductivity transmitter horizontally or with a vertical inclination. The
measuring surface(s) must be permanently submerged.
The seating surfaces of vessel threads and flange covers must be accurately
machined.
Use only the supplied sealing ring 33 x 39, form D, DIN 7603, 1.4301, bright annealed.
Do not lag the terminal box along with the rest of the boiler!
Do not insulate the electrode thread with hemp or PTFE tape!
Do not apply conductive paste or grease to the electrode thread!
The specified torques must be strictly observed.
continued
Key
1 Measuring length and installed length
2 Measuring tube
3 Sealing ring 33 x 39, form D, DIN 7603,
1.4301, bright annealed
4 Grub screw M 2.5 DIN 913
5 Electrode thread G 1 A, ISO 228
6 Thermal insulation, provided on site,
d = 20 mm, outside thermal insulation of
steam boiler
7 Spacer disc PTFE (only LRGT 16-2 from
800 mm onwards)
8 Spacer disc PEEK (only LRGT 16-2)
9 EMC cable gland M 20 x 1.5
Tools
Open-end spanner 41 mm A.F.
Screwdriver for hexagon socket head screws, size 1.3
Screwdriver, size 1 and 2
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