General Installation Instructions - Hart 5437 Manual Del Producto

General installation instructions

If the enclosure is made of non-metallic materials or is made of metal having a paint
layer thicker than 0,2 mm (group IIC), or 2 mm (group IIB, IIA, I), or any thickness
(group III), electrostatic charges shall be avoided.
For EPL Ga, if the enclosure is made of aluminum, it must be installed such, that
ignition sources due to impact and friction sparks are excluded
The distance between terminals, inclusive the wires bare part, shall be at least 3 mm
separated from any earthed metal.
The test pins allow measurement of loop current directly while maintaining loop
integrity. Power must be connected to the transmitter when using the test pins. For
hazardous area installation, only certified test equipment may be used.
If the transmitter was applied in type of protection Ex nA or Ex ec, it may afterwards
not be applied for intrinsic safety.
For installation in a potentially explosive gas atmosphere, the following
instructions apply:
The transmitter shall be mounted in an enclosure form B according to DIN43729 or
equivalent that is providing a degree of protection of at least IP20 according to
IEC60529.
The enclosure shall be suitable for the application and correctly installed.
For installation in a potentially explosive dust atmosphere, the following
instructions apply:
The transmitter shall be mounted in a metal enclosure form B according to DIN43729
or equivalent that is providing a degree of protection of at least IP5X according to
IEC60529. The enclosure shall be suitable for the application and correctly installed.
Cable entry devices and blanking elements shall fulfill the same requirements.
For EPL Da, The surface temperature of the enclosure, for a dust layer with a
maximum thickness of 5mm, is the ambient temperature +20 K.
For installalation in mines the following instructions apply:
The transmitter shall be mounted in a metal enclosure that is providing a degree of
protection of at least IP54 according to IEC60529.
Aluminum enclosures are not allowed for mines.
The enclosure shall be suitable for the application and correctly installed.
Cable entry devices and blanking elements shall fulfill the same requirements.
Ex nA / Ex ec / Ex ic Installation
For safe installation of the 5431A.., 5434A.., 5435A.. and 5437A.. the following must be
observed.
Marking
34
Ex nA IIC T6...T4 Gc
Ex ec IIC T6...T4 Gc
Ex ic IIC T6...T4 Gc
Ex ic IIIC Dc
5437V103-ES