Emerson Edition 4 Water Heater User Manual


 
Rosemount Tank Radar REX
Chapter 2 Safety
2-6
Installation Manual
308014EN, Edition 4
May 2013
2.3.4 Temperature Multiplexer Card (TMC)
Figure 2-4. Certification label for the Temperature Multiplexer Card
(TMC).
The Temperature Multiplexer Card (TMC) is mounted within the
flameproof enclosure. It is used for connecting up to 6 temperature
sensors to the REX 3900 gauge.
The following information is provided as part of the label of the TMC:
Name and address of the manufacturer
(Rosemount Tank Radar AB)
CE Conformity Marking:
Year of construction
Marking for explosion protection:
[Ex ia] IIC (Ga) (-40 °C Ta +85 °C)
Baseefa(2001) ATEX EC-Type Examination number:
Baseefa03ATEX0050U
Schedule of Limitations
The Temperature Multiplexer Card must be housed within an
enclosure which provides a degree of protection of at least IP20.
The 0V connections must be interconnected and connected to an
I.S. earth point in accordance with EN60079-14 12.2.4., when the
component is installed within an assembly.
The arrangements for the connections to non-hazardous area and
hazardous area external circuits must comply with the require-
ments of Clause 6.3 of EN 50020:2002.
Note! For electrical (I.S.) parameters refer to the appended EC-Type
Examination Certificate Baseefa03ATEX0050U.