A-2
IM 01C50C05-01EN
YTA70PQA01 20
21-04-21
2/2
ATEX
Installation drawing YTA70PQA01
Temperature
Class
Ambient temperature range
Pi: 0.84W
Pi: 0.75W
T6
-40
°C to +40 °
C
-40
°C to +45°
C
T5
-
40 °C to +
55
°
C
-40
°C to +
60
°C
T4
-
40 °C to +85 °C
-
40 °C to +85 °C
Installation notes.
If the enclosure is made of non
-
metallic plastic materials, electrostatic charges on the transmitter
enclosure
shall be avoided.
If the
transmitter is installed in an explosive atmosphere requiring the use of equipment protection
level Ga,
the transmitter shall be mounted in a
separately certified enclosure that provides a
degree of protection of at
least IP20 according to
EN 6052
9, and that is
suitable for the application
and
correctly installed.
If the transmitter is installed in an explosive atmosphere requiring the use of equipment protection
level Ga,
and if the enclosure is made of aluminum, it must be installed such, that ignition
sources due to impact and
friction sparks are excluded.
If the transmitter is installed in an explosive atmosphere requiring the use of equipment protection
level Db,
the transmitter shall be mounted in a separately certified enclosure that provides a
degree of protection of at
least IP5X according to
EN IEC
60079
-
0, and that is suitable for the
application and correctly installed.
The
surface temperature of the outer enclosure is
+20 K above the ambient temperature, determined without a
dust layer.
Ambient temperature range:
-
40 °C to +85 °C
Cable entries and
blanking elements
shall be used that are suitable for the application and correctly installed.
For an ambient temperature
≥
60º
C, heat resistant cables shall be used with a rating of
at least 20 K above
the ambient temperature.
The sensor circuit is not infallibly galvanic isolated from the input circuit. However, the galvanic isolation
between the circuits is capable of withstanding a test voltage of 500Vac for
1 minute.
