KROHNE OPTITEMP TRA-TCA EN - Manual (Page 40)

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TECHNICAL DATA
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OPTITEMP TRA/TCA
www.krohne.com 08/2010 - 4000630501 - MA OPTITEMP TRA/TCA R01 en
Installation conditions
Insertion angle 90° to the flow, directly against or diagonally against the flow.
Insertion length 10...15 x thermowell diameter, minimum 100 mm / 3.94" (shorter
insertion lengths possible but they impair measuring accuracy).
Pipes with Ø < 300 mm / 11.8" Thermowell tip should project past the middle of the pipe.
Bending radius The immersion tubes on the measuring inserts can be bent but the
smallest bending radius must be at least three times the diameter of
the immersion tube. Note: Do not bend the bottom 50 mm / 2"!
Materials
Thermowells (including process
connection)
The materials of the thermowells, neck tubes, flanges and threads as
process connections are always identical:
Standard: Standard: Standard: Standard:
1.4571 / AISI 316 Ti (X6CrNiMoTi 17-12-2)
Option: Option: Option: Option:
1.4841 / AISI 314/310 (X15CrNiSi 25-20) or 1.4404 / AISI 316 L
(X2CrNiMo 17-12-2)
Compression fitting 1.4571 / AISI 316 Ti (X6CrNiMoTi 17-12-2), metal or PTFE
compression ring
Connection heads Aluminium (powder coated), plastic or stainless steel
Measuring inserts With Pt100 RTD: 1.4404 / AISI 316 L (X2CrNiMo 17-12-2)
With thermocouple: Inconel 600 ®
Process connections and connection head thread
Insertion-type thermometer
(including version without
thermowell)
Insert, weld in (not possible with TRA/TCA-P14) or attach using
compression fitting (thread: G½", G¾", G1", ½" NPT or ¾" NPT).
Threaded thermometer (with and
without neck tube)
Thread as per DIN/ISO 228 (G½", G¾" or G1") or
ANSI/ASME B1.20.1 (½" NPT and ¾" NPT), other sizes on request.
Attachment using welding sleeves. Starting at a wall thickness of
20 mm / 0.8", it is possible to screw in directly with thread in the pipe.
Flange thermometer As per DIN EN 1092-1: B1-DN25 / PN40, B1-DN50 / PN40, other sizes
on request.
As per ASME B16.5: RF 1" / 150 lb, RF 1" / 300 lb, RF 1½" / 150 lb, RF
1½" / 300 lb, other sizes on request.
Surface roughness of the flange sealing face is 3.2...12.5 μm (DIN EN
flange) or 3.2...6.3 μm (ASME flange).
Connection head M24 x 1.5 thread to connect the thermowell or neck tube.
.book Page 40 Tuesday, August 17, 2010 12:18 PM