GESTRA NRG 16-38 S, Оригинальная инструкция по установке

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37
Installation
- continued -
EN
b
Housing screws M4
c
Cable gland 2 M 20 x 1.5
d
Housing cover
e
Switch for measuring range
f
Potentiometer for lower measuring point (4 mA)
g
LED “Liquid level 0 %”
h
LED “Liquid level greater than 0 %, less than 100 %”
Key
Aligning terminal box of NRGT 26-1S, step 3
A self-locking fixing nut
o
connects the terminal box to the electrode part. Before establishing the
electrical connection you can turn the terminal box through max. +/– 180° into the desired direction
(cable gland).
i
LED "Liquid level 100 %"
j
Potentiometer for upper measuring point
k
Terminal lugs for voltage measurement
l
Thermal fuse T
max
102°C
m
Terminal strips
n
PE connection
o
Fixing nut
Note
n
For the approval of the boiler standpipe the relevant regulations must be considered.
n
Refer to page 16 for a typical installation example.
Tools
n
Hacksaw
n
Flat file, medium cut
n
Open-end spanner 13 mm A. F.
n
Open-end spanner 17 mm A. F.
n
Open-end spanner 18 (19) mm A. F.
n
Screwdriver, size 1
n
Screwdriver, size 2.5, completely insulated according to DIN VDE 0680-01