Installation Of The Atex Version; Gemü 9428 Electrical Connection - GEM R488 Victoria Operating Instructions Manual

12 GEMÜ 9428 electrical connection
5 4
13. Slightly tighten the bolts 4 and nuts 5 diagonally.
14. Fully open the disc and check the alignment of the piping.
15. Tighten the nuts 5 diagonally until the flanges fit tightly on
the body.
Observe the permissible tightening torque of the bolts
(see "Mechanical data").

11.4 Installation of the ATEX version

1. Install the butterfly valve, see chapter "Installation of the
standard version".
2. Connect the earthing cable of the butterfly valve to the
earth terminal of the plant.
3. Test the resistance between the earthing cable and actu-
ator shaft (value <106 Ω, typical value <5 Ω).
GEMÜ R488 Victoria
12 GEMÜ 9428 electrical connection
Risk of electric shock
▶ Risk of injury or death (if operating
▶ Adjustments are made with the actu-
▶ Electric shock can cause severe burns
●
●
Power supply varies dependent on the design (see
●
product label).
Do not bridge terminals!
●
For parallel connection of several actuators, use the ver-
●
sion with K-no. 6410.
With version AE (additional potential-free limit switches),
●
the plug connections must not be interchanged with the
power supply.
36 / 69
DANGER
voltage is higher than safe extra low
voltage).
ator cover removed.
and fatal injury.
Always disconnect the product from
power supply!
Therefore, have all work performed
only by qualified electricians.
NOTICE
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