INOR PROFIPAQ-L - Manual (Page 9)

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2.5 Installation in an encapsulation
2.5.1 Ambient temperature considerations
The ProfIPAQ-H / -H/D / -HX / -HX/D transmitter is designed to operate within specifications
for ambient temperatures between –40 and 85 °C (–40 and 185 °F), also see ambient
temperatures depending on temperature class and Gas- or Dust-installation in section 2.3.1,
Ex data. Heat from the process is transferred via the thermowell to the transmitter housing.
If the expected process temperature is near or beyond specification limits, this may rise the
temperature in the transmitter housing (encapsulation) above specified ambient
temperature. Always verify that the temperature where the transmitter is mounted is not
above the specified limit. One way to reduce heat transfer via the thermowell is to increase
the length of the thermowell or to move the transmitter housing away from the heat source.
The same safety measures can be used when the temperature is below the specified
minimum temperature.
2.5.2 ProfIPAQ-H/-HX (Gas)
The transmitter may be mounted in a temperature sensor housing, in a box or on a DIN
rail. It is recommended to use INOR mounting accessories, see 2.11, Accessories.
For non-Ex application, a housing with IP 54 is recommended. Most temperature housings
fulfill this requirement.
For Ex n application (non-incendive, Zone 2, Category 3G) ProfIPAQ-H in a housing with at
least IP 54 is needed. The enclosure must fulfill the requirements of EN 60079-0 and EN
60079-15 regarding impact and IP degree, which easiest is achieved by using certified
enclosures, e.g. the housings approved together with ProfIPAQ-H/D / -HX/D.
For applications requiring installation into Zone 0 (Category 1G) or Zone 1 (Category 2G)
ProfIPAQ-HX is used, installed in an appropriate housing with an ingress protection of at
least IP20.
1 M4 Screw, special for ProfIPAQ-H/-HX
2 Spring
3 Locking washer
4 Sensor wires
5 Sensor protection tube
Figure 6 Mounting with Standard Mounting kit 70ADA00017