H
H
M
M
-
-
S
S
e
e
r
r
i
i
e
e
s
s
E
E
l
l
e
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c
c
t
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r
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i
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c
c
A
A
c
c
t
t
u
u
a
a
t
t
o
o
r
r
I
I
n
n
s
s
t
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a
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l
l
l
l
a
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O
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p
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K
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C
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18
4.3.4 Drive Bush Disassembly: Non Thrust Base
1. Loosen the bolts, which secure the base and body.
2. Using tools loosen the securing clips from the Drive Bush and pull, the centre column
for the Actuator separates. Many difference Valve combinations can be achieved on
customer request. It is worthwhile to note that there are various options, for Base and
Drive Bush, which have not been included in this document.
4.7
Electrical Connections and Preliminary Test
Warning ;
When working in potentially explosive areas, observe the European Standards
EN 60079-14 “Electrical Installations in Hazardous Areas” and EN 60079-17
“Inspection and Maintenance of Electrical Installations in Hazardous Areas”.
Work on the electrical system or equipment must only be carried out by a
skilled electrician himself or by specially instructed personnel under the
control and supervision of such an electrician and in accordance with the
applicable electrical engineering rules.
For cable gland or conduit entries that are not used, user or installer shall
close by certified blanking elements so that the flameproof properties of the
enclosure are maintained
Flameproof enclosure! Treat cover with care. Gap surfaces must not be
damaged in any way. Do not jam cover during fitting.
Do not disassemble the cover and the window arbitrarily at site. (confirmation
with the factory is highly recommended).
Do not disassemble the base from the actuator body arbitrarily at site
(confirmation with the factory is highly recommended).
Loosen the screws on the actuator cover and to lift it off.
Make sure that power supply voltage is in accordance with the data on the actuator
nameplate
Pass cables through the cable glands : PF 1“,1½” NPT1“,1½”
For more hazardous environments use suitable reducers, glands or conduits.
When using the Actuator in a Factory, ensure suitable plastic plugs are instead used.
Conduits that are not in use shall be sealed with steel or brass threaded plugs. Suitable
plugs and parts must be used in more dangerous environments
.