KROHNE OPTITEMP TRA-TCA Plus EN - Manual (Page 12)

2
DEVICE DESCRIPTION
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OPTITEMP TRA/TCA PLUS
www.krohne.com 01/2012 - 4000630301 - MA OPTITEMP TRA/TCA Plus R01
2.2.2 Types of connection heads
A connection head protects the terminals and the temperature transmitter from environmental
effects (e. g. dirt or dust). The cable gland for the connection head on the industrial thermometer
for advanced requirements depends on the process connection for the connection head
(M20 x 1.5 for process connections with the dimensions M24 x 1.5 and ½" NPT for all process
connections with ½" NPT threads, for more information see refer to
Cable gland on page 49).
There are oil-resistant rubber seals on the covers of all connection heads (can be used up to
100°C / 212°F ambient temperature). The connection heads are available in the following
materials:
• Die-cast aluminium for standard applications (Types: BA, BUZ-T/S/H/HW, BGK and AXD). The
surface of these connection heads features a 70µm thick powder coating made of polyester.
• Stainless steel (type BVA), especially for the pharmaceutical and food and beverage
industries
• Plastic (type BBK)
The type "BUZ-HW" is the only connection head with an integrated, head-mounted display fed by
the 4...20 mA current loop.
INFORMATION!
The inside dimensions of the connection heads depicted here comply with DIN 43735.
DANGER!
ATEX approval is pending. Until such approval has been granted, do not install or operate the
industrial thermometer for advanced requirements in potentially hazardous areas. Otherwise
you could cause an explosion that could have fatal consequences.
.backup.book Page 12 Tuesday, January 10, 2012 11:57 AM