Samson 373 Series User Manual

EB 8384-2 EN 85
Mounting and start-up
5.15.4 Signal pressure (output)
The signal pressure at the output (38) of the
positionercanberestrictedto1.4bar,
2.4baror3.7barinCode16.
The limitation is not activated [No] by de-
fault.
5.16 Electrical connections
For electrical installation, observe the rele-
vant electrotechnical regulations and the ac-
cident prevention regulations that apply in
the country of use. In Germany, these are
theVDEregulationsandtheaccidentpre-
vention regulations of the employers’ liability
insurance.
Risk of fatal injury due to the formation of
an explosive atmosphere.
The following regulations apply to installation
in hazardous areas: EN60079-14
(VDE0165, Part1) Explosive Atmospheres–
Electrical Installations Design, Selection and
Erection.
Incorrect electrical connection will render the
explosion protection unsafe.
− Adhere to the terminal assignment.
− Do not undo the enameled screws in or on
the housing.
− Do not exceed the maximum permissible
values specied in the EC type examina-
tion certicates when interconnecting in-
trinsically safe electrical equipment (U
i
or
U
0
, l
i
or I
0
, P
i
or P
0
, C
i
or C
0
and L
i
or L
0
).
DANGER
!
WARNING
!
The ambient temperature ranges of the ta-
blesintheECtypeexaminationcerticate
apply for the assignment between the per-
missible ambient temperature, temperature
class, maximum short-circuit currents and
maximum power P
i
and P
0
.
The following applies additionally: For posi-
tionersintypeofprotectionExtb
(Type3730-25)andtypeofprotectionExnA
(Type3730-28),thecableglandsandblank-
ingplugsmustbecertiedaccordingto
EN60079-7(Exe).
Selecting cables and wires
Observe Clause12 of EN60079-14 for in-
stallation of the intrinsically safe circuits.
Clause12.2.2.7applieswhenrunningmulti-
core cables or wires with more than one in-
trinsically safe circuit.
The radial thickness of the insulation of a
conductor for common insulating materials
(e.g. polyethylene) must not be smaller than
0.2mm.Thediameterofanindividualwire
inane-strandedconductormustnotbe
smallerthan0.1mm.Protecttheconductor
ends against splicing, e.g. by using wire-end
ferrules.
Whentwoseparatecablesorwiresareused
for connection, an additional cable gland
can be installed. Seal cable entries left un-
used with plugs. Fit equipment used in ambi-
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)

Samson 373 Series Specifications

General

Brand	Samson
Model	373 Series
Category	Valve Positioners
Language	English