Instruction Manual

7 TECHNICAL DATA
48
OPTITEMP TRA/TCA PLUS
www.krohne.com 01/2012 - 4000630301 - MA OPTITEMP TRA/TCA Plus R01
Electrical connections
Power supply Only necessary when using a temperature transmitter and depends
on transmitter type (typically 24 VDC).
Power consumption Only when using a temperature transmitter (typically 550 mW).
Cable entry (connection head) Depends on the thread to connect to the neck tube:
• For thread according to DIN: M20 x 1.5
• For thread according to ASME/ANSI: ½" NPT, no cable gland
supplied here.
Current output
Current outputCurrent output
Current output
Output range Exists only when using a temperature transmitter and depends on
transmitter type (typically 4...20 mA, HART
®
, Profibus-PA).
Error signal According to NAMUR NE 43, selectable: upper value ≥ 21.0 mA, lower
value ≤ 3.6 mA, the factory default is the upper value.
Load Relevant only when using a temperature transmitter and then
dependent on transmitter type (typically 250 Ω).
Other electrical characteristics
Other electrical characteristicsOther electrical characteristics
Other electrical characteristics
Galvanic isolation Relevant only when using a temperature transmitter (see transmitter
handbook).
Time constant More detailed information can be found in the subsection "Response
times" of the section "Technical data".
Approvals and certificates
Electromagnetic compatibility See handbook for temperature transmitter used.
ATEX Ex i pending for all thermometers with a measuring insert featuring a
diameter of 6 mm / 0.24" and the following sensor:
1 x Pt100, class A, wire-wound RTD.
Functional safety SIL2 with temperature transmitter TT51 C/R
.backup.book Page 48 Tuesday, January 10, 2012 11:57 AM