03.07
03.07
Assemblies can be used for temperature distribution control in vessel or furnace volume.
General industrial versions and explosion protection versions - explosion-proof sheath (Exd) or intrinsically safe circuit «ia» (Exi) according to GOST 30852.13-2002 are available.
Assembly consists of several 02.01 thermocouples with different insertion length. Number of measurement points is equal to the number of thermocouples 02.01 mounted on header flange manufactured according to GOST 12815-80, DIN 1092, ASME B16.5-2003. Junction box is mounted on the sensor header flange by means of interface box.
Multipoint assembly is manufactured on the basis of specific drawings agreed with the Customer. The drawings should specify flange type, interface box design (free wires or junction box), measurement transmitters availability, probe length values and other parameters. If required, terminal box can be positioned away from connecting flange by means of corrugated metal hose.
03.07 multipoint assembly is not equipped with leak monitoring cell connected to the header flange. it is recommended to use such assembly inside special pockets in reactors and tanks (seepicture below).
Terminal box can be equipped with measuring transmitters with 4-20 mА DC output signal according to GOST 26.011 and/or digital signal via HART, PROFIBUS-PA, FOUNDATION Fieldbus protocol.
Hot junction |
one or two |
Ungrounded or Grounded |
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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 |
UHL2Ambient temperature: |
-60..+120ºС for general purpose products |
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-60..+85 ºС for Ex version with analogous signal |
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-55..+85ºС for products with unified output 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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Nominal (rated) |
complies to header flange parameters (0,1 ÷ 25MPa) |
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Flange material |
should be agreed on the drawing. Maximum temperature on mounting flange – 600°С (flange operating pressure and temperature values should not be beyond the limits specified by the relevant rules and standards of the state supervision for these materials and operating conditions) |
Group of operating conditions |
Failure-free operation probability |
Guarantee period |
I |
0.95 for 40 000 hours |
5 years |
II |
0.95 for 16 000 hours |
2 years |
Measurement accuracy of sensors with 4-20 mА DC signal and/or digital signal via HART protocol are given taking into account accuracies of thermocouple itself, transmitter and transmitter's cold junction compensation.
Output signal |
Symbol |
Measurement accuracy |
Output |
Symbol |
Measurement accuracy |
4-20mА |
c0Т40 |
±0,4% ∙tn* or ±1,5°С |
4-20mА+HART |
c1N25 |
±0,25%∙ tn or ±0,9°С; |
c1Т50 |
±0,5%∙ tn or ±2,0°С |
c0N40 |
±0,4%∙ tn or ±1,2°С; |
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c2Т80 |
±0,8%∙ tn or ±2,5°С; |
c1N50 |
±0,5%∙ tn or ±1,7°С; |
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c2N80 |
±0,8%∙ tn or ±2,5°С; |
* - tn thermocouple range should be multiplied by specified value in в %. Select higher value.
CT type |
Measurement range, ºС |
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, 8, 10 |
S321; S316; S347; T600 |
– 200 ..+ 800 |
II |
2 years |
3; 4,5; 6, 8, 10 |
S321 |
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– 200..+ 900 |
3; 4,5; 6, 8, 10 |
S316; S347; T310; T600 |
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CTN |
– 40 ..+ 700 |
I |
5 years |
3; 4.5 |
S347, Т310; Т600; |
– 40 ..+ 800 |
II |
2 years |
3 |
S347, Т310; Т600; |
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– 200 ..+ 1000 |
4.5, 6 |
T310; T600 |
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CTL |
– 40 ..+ 600 |
I |
5 years |
3; 4; 4.6; 5; 6 |
S10 |
CTJ |
– 40 ..+ 760 |
II |
2 years |
3; 4,5 |
S321, S316 |
Response time τ 0,63:
Hot junction |
seconds, for outer diameter d, mm |
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d = 3,0 |
d = 4,5 |
d = 6 |
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Insulated from sheath |
1.0 |
2.0 |
4.0 |
Uninsulated from sheath |
0.5 |
1.0 |
2.0 |
CTK |
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Exd |
03.17 |
— |
1 |
41 |
— |
c1 |
H50 |
— |
4 |
U |
2 |
— |
S316 |
D |
— |
6 |
— |
L |
/ |
l |
- |
Version 930.T2 |
1 |
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2 |
3 |
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4 |
5 |
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6 |
7 |
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8 |
9 |
10 |
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11 |
12 |
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13 |
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14 |
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15 |
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16 |
NN |
Parameter name |
Code |
Description |
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1 |
Sensor type |
CTK, CTL, CTN |
cable thermocouple |
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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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Exd |
1ExdIICT6, explosion-proof enclosure |
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3 |
Modification |
03.07 |
Multipoint temperature sensor with flange, without leak monitoring cell |
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03.17 |
Multipoint temperature sensor with flange, with leak monitoring cell |
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4 |
Terminal head |
0 |
Free electrode ends 50mm |
IP65 |
0ExiaIICT6Х or general purpose |
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1 |
Terminal box |
IP66 |
1ExdIICT6 / 0ExiaIICT6 X |
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5 |
Version |
20 |
159х159х101mm |
maximum 6 MT |
general purpose |
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30 |
110х110х85mm |
maximum 4 MT |
0ExiaIICT6 X |
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31 |
147х147х100mm |
maximum 6 MT |
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32 |
305х147х100mm |
maximum 16 MT |
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40 |
282х182х105mm |
maximum 8 MT |
1ExdIICT6 Х |
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41 |
304х204х214mm |
maximum 15 MT |
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42 |
425х224х214mm |
maximum 24 MT |
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50 |
Stranded conductor, silicon / shield / silicon insulation |
Only for 03.07 |
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60 |
Stranded conductor, PTFE / shield / PTFE insulation |
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6 |
Tolerance class |
c0; c1; c2 |
For further details see table 5 page 2-9 |
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7 |
Output signal, transmitter accuracy symbol, see table 5, page 2-10 |
Not filled |
analogous signal according to NSC |
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Т40 |
4-20 mА |
for k0 |
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Т50; Т70 |
for k1 |
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H40 |
4-20 mА +HART |
for k0 |
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Н25; Н50 |
for k1 |
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9 |
Number of points |
1…30 |
Number of temperature monitoring points (levels) |
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9 |
Sensor hot junction design |
G |
grounded junction, |
general purpose |
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U |
ungrounded junction |
1ExdIICT6 / 0ExiaIICT6 X or general purpose |
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10 |
Number of wire couples |
Not filled |
A pair of wires for every point |
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2 |
2 pairs of wires (2 junctions) for every point |
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11 |
Cable outer sheath material |
S10 |
Steel 12Cr18Ni10Т (only for CTL) |
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S321, S316, S347 |
AISI 321, AISI 316, AISI 347 |
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Т310, Т600 |
AISI 310, INCONEL 600 |
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12 |
Cable sheath thickness |
Not filled |
standard sheath thickness (see table 1 introduction) |
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D |
double sheath thickness (see table 1 introduction) |
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13 |
Outer cable sheath diameter |
3; 4,5;6, 8, 10 |
size (mm) on Customer's choice |
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14 |
Probe length Ln |
10÷100,000 |
Length of the lowest (the most distant) element of the multipoint sensor |
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15 |
Length l of extension wire |
Not filled |
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For versions with terminal boxes 1xx |
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100÷30,000 |
specify dimensions in mm |
Only for versions 05х, 06х |
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16 |
Drawing number |
Version ХХХ.VV |
Brief number of the agreed drawing should be specified. |
CTK Exd03.17-–141 – к1H50 – 4U2 – 2S316 – 6 – L, version 930.T2 ¾ multipoint temperature sensor based chromel-alumel (K) thermocouples, modification 03.17 with leak monitoring cell,with junction box (141)made of aluminium alloy with explosion-proof sheath (Exd), thermocouple tolerance class 1, the sensor is equipped with measuring transmitters 4-20мА+HART (H50), two ungrounded junctions (U2) in every point, 4 measurement points, double-thick cable sheath made of steel AISI 316(2S316) diameter 6 мм, engineering documentation code 930.Т2.