From uncertaintyto stability
03.06
03.06
Multipoint assemblies, modification 03.06 are designed for temperature measurement along axis of heat treatment furnace.
03.05 modification structure for multipoint measurement is an assembly of 02.01 modification thermocouples. Number of measurement points (from 3 to 10) equals to number of thermocouples in an assembly. Compensating wire length equals to 1000 mm or should be specified at the time of order. 03.06 modification multipoint assembly is designed for installation inside special thermowells of process equipment. Thermocouple edges should be pressed up to thermowell walls or spaced inside thermowell by spring properties of a ring formed near hot junction. The assembly is designed for 60 mm thermowell inner diameter (analogous to THK 2988), and is mounted on common header flange (flange without mounting holes).
Sensors can be of explosion protection type 0ExiaIICT6 X according to GOST 30852.10-2002. For further details see "Alternative designs & Ordering information" below.
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Hot junction |
one or two |
Ungrounded |
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Vibration resistance GOST R 52931 |
group V3 |
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Seismic resistance MSK-64 |
grade 9 for unit installation up to 70 m above zero mark |
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Climatic category GOST 15150 |
UHL2 Ambient temperature: |
-60..+120ºС for general purpose products |
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-60..+85 ºС for Ex version with analogous signal |
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Calibration |
Not subject to periodic calibration Should be put out of operation after operating resource depletion |
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Group of operating conditions |
Probability of |
Guarantee |
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I |
0.95 for 40 000 hours |
5 years |
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II |
0.95 for 16 000 hours |
2 years |
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III |
0.95 for 8 000 hours |
1 year |
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IV |
Not rated |
Not rated |
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CT type |
Measurement |
Group of operating conditions |
Specified lifetime |
Cable selection |
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Sheath diameter |
Sheath material |
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CTK |
– 40 .. + 600 |
I |
5 years |
3; 4,5; 6 |
S321; S316; T310; Т446; T600 |
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– 200 ..+ 800 |
II |
2 years |
3; 4,5; 6 |
S321 |
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– 200..+ 900 |
3; 4,5; 6 |
S316; T310; T600 |
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– 200..+ 1000 |
III |
1 year |
3 |
T310; Т446; T600 |
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– 200..+ 1100 |
4.5; 6 |
T310; Т446; T600 |
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– 40..+ 1300 |
IV |
Not rated |
4.5; 6 |
T600 |
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CTN |
– 40 ..+ 800 |
I |
5 years |
3; 4.5 |
Т310; Т600; Т740 |
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– 200 ..+ 1000 |
II |
2 years |
3 |
T310; T600 |
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– 200 ..+ 1100 |
4.5 |
T310; T600 |
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3; 4.5 |
Т740 |
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– 200 ..+ 1100 |
III |
1 year |
3 |
Т740, Т600 |
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– 200 ..+ 1200 |
4.5 |
Т740 |
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– 40 ..+ 1300 |
IV |
Not rated |
4.5 |
Т740 |
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CTL |
– 40 ..+ 600 |
I |
5 years |
3; 4; 4.6; 5; 6 |
S10 |
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– 100 . + 800 |
II |
2 years |
3; 4; 4.6; 5; 6 |
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CTJ |
– 40 ..+ 760 |
II |
2 years |
3; 4.5 |
S321, S316 |
Response time τ 0,63:
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Hot junction |
Sensor response time depending on diameter, s |
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d = 3.0 |
d = 4,0 |
d = 4,5; 4,6 |
d = 5,0 |
d = 6,0 |
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Insulated from sheath |
1.0 |
1.5 |
2.0 |
3.0 |
4.0 |
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Uninsulated from sheath |
0.5 |
1.0 |
1.0 |
1.5 |
2.0 |
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CTK |
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Exi |
03.06 |
— |
0 |
50 |
— |
c1 |
— |
5 |
U |
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— |
S321 |
— |
3 |
— |
Ln |
l |
— |
List of length |
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1 |
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2 |
3 |
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4 |
5 |
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6 |
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7 |
8 |
9 |
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10 |
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11 |
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12 |
13 |
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14 |
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NN |
Name |
Code |
Description |
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1 |
Sensor type |
CTK |
cable thermocouple chromel-alumel |
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CTL |
cable thermocouple chromel-copel |
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CTN |
cable thermocouple nichrosil-nisil |
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CTJ |
cable thermocouple iron-konstantan |
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2 |
Explosion protection |
Not filled |
general purpose electrical equipment |
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Exi |
0ExiaIICT6 X, intrinsically safe circuit |
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3 |
Modification |
03.05, 03.06 |
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4 |
Terminal head |
0 |
Free electrode ends 50mm |
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5 |
Wire version (see "Alternative designs" table, pages 1-14) |
50 |
Stranded conductor, silicon / shield / silicon insulation - shield is insulated from sensor body and does not have a terminal |
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60 |
Stranded conductor, PTFE / shield / PTFE insulation - shield is insulated from sensor body and does not have a terminal |
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6 |
Tolerance class |
c0, c1; c2 |
For further details see table 5 page 2-9 |
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7 |
Number of points |
1…20 |
Number of temperature monitoring points (levels) |
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8 |
Sensor hot junction design |
G |
grounded junction, general purpose |
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U |
ungrounded junction |
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9 |
Number of wire couples |
Not filled |
1 wire couple |
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2 |
2 wire couples |
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10 |
Reinforcement material |
S10 |
Steel 12Cr18Ni10Т (only for CTL) |
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S321 |
Steel AISI 321 |
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S316 |
Steel AISI 316 |
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Т310 |
Steel AISI 310 |
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Т446 |
Steel AISI 446 |
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Т600 |
INCONEL 600 |
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Т740 |
ALLOY 740 |
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11 |
Outer diameter |
3;4; 4,5; 4,6; 5; 6 |
size (mm) on Customer's choice |
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12 |
Probe length Ln |
10÷100 000 |
Length of the lowest (the most distant) element of the multipoint sensor |
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13 |
Length l |
250÷20,000 |
Extension wire length |
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14 |
List of length |
L1, L2,…,Ln |
List of probe length values for all measuring points. |
CTK Exi 03.06-050 - c1 - 5U2 - S316 - 3 – 12000/1000 – L1=1000, L2=3000, L3=5000, L4=7000, L5=12000 – Multipoint temperature sensor, design modification 03.06 based on cable thermocouples, modification version 050 with extension leads silicon/screen/silicon 1000 mm long, tolerance class 1, two ungrounded junctions (U2), cable sheath material - steel AISI 316 (S316), cable thermocouple diameter 3 mm, Measuring point length values L1=1000, L2=3000, L3=5000, L4=7000, L5=12000. Explosion protection - "Intrinsically safe circuit ia", 0ExiallCT6 X.