GE Masoneilan 4700P Maintenance Manual page 39

Special Conditions for Safe Use (denoted by X
after the certificate number)
For type n (Ex nL, nA protection concept):
Special Conditions for Safe Use
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Ex ia IIIC Da T90 °C
Sira 02ATEX4279X
II 3 G
Ex nA nL IIC T4 Gc
.
T = -40 °C to +80 °C, P
a
This enclosure is made from light
metal which could cause ignition
due to impact. This shall be taken
into consideration when the appa-
ratus is installed in locations that
specifically require Equipment Pro-
tection Levels Ga or Da.
If the Model 4000 I/P Converter is
mounted with the axis of the plastic
baffle in the vertical position with
the baffle uppermost, the required
ingress protection against water is
invalidated; therefore, it shall only
be installed in this orientation if its
location provides protection against
falling water.
T = -40 °C to +80 °C
a
Provisions shall be made externally
to limit the supply transients from
exceeding 40% of the rated input
voltage (30 V).
If the Model 4000 I/P Converter is
mounted with the axis of the plastic
baffle in the vertical position with
the baffle uppermost, the required
ingress protection against water is
invalidated; therefore, it shall only
be installed in this orientation if its
location provides protection against
falling water.
The installer shall ensure that the
Model 4000 I/P Converter is
installed in a location where there is
a low risk of mechanical impact to
the plastic baffle.
Masoneilan 4700P/E & 4800P/E Positioners Manual =| 39
= 1.1 W
i