Samson TROVIS SAFE 3730-6, Монтаж и эксплуатация

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86 EB 8384-6S EN
Mounting and start-up
ent temperatures below –20 °C with metal
cable entries.
Equipment for use in zone 2/zone 22
In equipment operated according to type of
protection Ex nA (non-sparking equipment)
according to EN 60079-15, circuits may be
connected, interrupted or switched while en-
ergized only during installation, mainte-
nance or repair.
The special conditions of use mentioned in
the statement of conformity are to be ob-
served for the rated values and the installa-
tion of the series-connected fuse for intercon-
nection of Ex nA circuits.
For Ex nA equipment (non-sparking equip
-
ment), circuits may be connected, interrupted
or switched while energized only during in-
stallation, maintenance or repair.
−
Positioners with type of protection Ex nA
or Ex tc can be used with a closed cover
(no window) or or with a cover with win-
dow.
−
The
(TROVIS SAFE
3730-61, 3730-65
and 3730-68 Positioners are 100 %
identical in design, except for the mark-
ing and the housing cover.
−
For type of protection Ex nA, the VCC
connection in the interface adapter must
be connected in series with a fuse ac-
cording to IEC 60127, 250 V F or T with
a fuse rating of I
N
≤40 mA.
−
The signal current circuit must be con-
nected in series with a fuse according to
IEC 60127-2/VI, 250 V T with a fuse
rating of I
N
≤63 mA.
−
The transmitter current circuit must be
connected in series with a fuse according
to IEC 60127-2/VI, 250 V T with a fuse
rating of I
N
≤40 mA.
The fuses must be installed outside the haz-
ardous area.
Cable entry
Cable entry with M20x1.5 cable gland, 6 to
12 mm clamping range.
There is a second M20x1.5 threaded hole in
the housing that can be used for additional
connection, when required. The screw termi-
nals are designed for wire cross-sections of
0.2 to 2.5 mm². Tighten the screws by 0.5 to
0.6 Nm.
The wires for the set point must be connect-
ed to the terminals 11 and 12 located in the
housing.
Only use a current source .
≥3.6 mA: Microprocessor and display active
<3.7 mA: LOW reading on display
≤3.8 mA: Emergency shutdown (version with
shutdown at 3.8 mA)
>3.9 mA: Actuator can be filled with air
(version with shutdown at 3.8 mA)
≤4.4 mA: Emergency shutdown (version with
shutdown at 4.4 mA)
>4.6 mA: Actuator can be filled with air
(version with shutdown at 4.4 mA)
>22 mA: OVERLOAD reading on display