From uncertaintyto stability
21.06
15
21
23
24
28
21.06
are designed for temperature measurement in liquid and gaseous non-corrosive media, and also corrosive media that do not damage protective cover material.
Depending on modification the sensor can be equipped with welded fitting. Sensors without mounting elements are recommended to be equipped with movable fitting UNKJ 031, 041, or movable flange UNKJ 030 (see section 10 "UNKJ mounting fittings"). Nominal pressure is rated according to mounting element. 01.08 sensor can be equipped with mounting threaded flange UNKJ 039 (see page 10-2).
High-temperature CTх 01.16 sensor is equipped with assembly heat-resistant thermowell. Assembly thermowell is recommended for heat-resistant tube consumption reduction and thermocouple cost saving. One part of thermowell insertion length is made of heat-resistant alloy CrNi45U,alloy Kanthal АРМ or AISI 310 steel, and other (low-temperature) part is made of 12Cr18Ni10Т stainless steel or similar. Two thermowell parts are welded together by argon-arc welding. Temperature at welding point during operation should not exceed 700°С.
CTK 01.06 and 01.16 with thermowell made of heat-resistant steel AISI 310 are recommended for temperature up to 1100°С instead of thermocouple with more expensive thermowell made of CrNi45U and Kanthal АРМ alloy.
01.06 and 01.16 sensors can be dismantled. Temperature-sensing elements CTK 01.01-006 can be supplied separately. 01.06 and 01.16 sensors have angle versions 01.06A and 01.16A with 90° bend. 01.06A and 01.16A modifications can not be dismantled. For further details see "Alternative designs & Ordering information" below.
Thermocouple design with AISI 310 steel thermowell is covered by utility model patent No. 41190.
21.06, 21.08 and 21.16 temperature sensors are recommended if precision temperature measurement is required. Such precision is achieved due to periodic calibration or verification. They are similar to 01.06 and 01.16 modifications, and have the same technical specification.
21.xx temperature sensor has an additional channel for control or reference thermocouple installation next to temperature-sensing element inside thermowell. Such construction allows to calibrate temperature-sensing element without thermocouple dismantling according to MI 3091--2007 (see pages 2-16). CETN 01 or CETN 02 are used as reference thermocouples (see section 8).
CTxx 21.XX thermocouple design is covered by patent for invention No. 2299408.
Explosion-proof versions 0ExiaIICT6 X or 1ExdIICT6 according to GOST 30852.10-2002 are available (except for 21.06, 21.08, 21.16 modifications). For further details see "Alternative designs & Ordering information" below.
Terminal heads can be equipped with transmitters with 4-20 mА DC output signal and/or digital signal via HART, PROFIBUS-PA, FOUNDATION Fieldbus protocol. It is recommended to use heads of 16, 23, 28 modifications for easy wire connection to transmitters. Terminal head can be equipped with standard or special-purpose cable gland. For further details see "Alternative designs & Ordering information" below.
|
Hot junction |
one |
Ungrounded or Grounded |
||
|
two |
||||
|
Vibration resistance GOST R 52931 |
group V3 |
|||
|
Seismic resistance MSK-64 |
grade 9 for unit installation up to 70 m above zero mark |
|||
|
Nominal (rated) pressure |
6.3 MPa |
01.08 modification |
||
|
0.1 MPa |
01.06, 01.16 modifications |
|||
|
Climatic category GOST 15150 |
UHL2Ambient temperature: |
-60..+120ºС for general purpose products |
||
|
-60..+85 ºС for Ex version with analogous signal |
||||
|
-55..+85ºС for products with unified output signal |
||||
|
Calibration |
- MI 3090-2007 – for assembled sensor, with fitting length 20 - 250 mm, without measuring transmitters; |
|||
Group of operating conditions |
Probability of |
Specified lifetime |
Mean |
Guarantee |
|
I |
0.95 for 40 000 hours |
5 years |
10 years |
5 years |
|
II |
0.95 for 16 000 hours |
2 years |
4 years |
2 years |
|
III |
0.95 for 8 000 hours |
1 year |
2 years |
1 year |
|
IV |
Not rated |
Not rated |
Not rated |
Not rated |
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; |
||
|
c2Т80 |
±0,8%∙ tn or ±2,5°С; |
c1N50 |
±0,5%∙ tn or ±1,7°С; |
||
|
|
|
c2N80 |
±0,8%∙ tn or ±2,5°С; |
* - tn sensor adjustment range should be multiplied by specified value in %. Select higher value.
CT type |
Thermowell diameter |
Thermowell material |
Group of operating conditions |
Application |
Calibration interval |
Mean lifetime |
|
CTN |
16; 20 |
S10 |
I |
-40…+600 |
5 years |
10 years |
|
II |
-200…+800 |
2 years |
4 years |
|||
|
CTK |
20 |
S13 |
I |
-40…+600 |
5 years |
10 years |
|
II |
-200…+900 |
2 years |
4 years |
|||
|
CTN |
20 |
S13 |
I |
-40…+800 |
5 years |
10 years |
|
II |
-200…+900 |
2 years |
4 years |
|||
|
CTK |
20 |
T310 |
I |
-40…+600 |
5 years |
10 years |
|
II |
-200…+900 |
2 years |
4 years |
|||
|
III |
-200…+1100 |
1 year |
2 years |
|||
|
CTN |
20 |
T310, Т45 |
I |
-40…+800 |
5 years |
10 years |
|
II |
-200…+1100 |
2 years |
4 years |
|||
|
Т310 |
IV |
-200…+1150 |
Not rated |
Not rated |
||
|
20 |
Т45 |
IV |
- 200…+ 1250 |
Not rated |
Not rated |
|
|
CTK |
20 |
Т45 |
III |
-200…+1100 |
1 year |
2 years |
|
IV |
- 200…+ 1250 |
Not rated |
Not rated |
|||
|
CTN |
27 |
Tarm |
II |
-200…+1100 |
2 years |
4 years |
|
CTK |
III |
-200…+1100 |
1 year |
2 years |
||
|
CTK, CTN |
IV |
- 200…+ 1300 |
Not rated |
Not rated |
||
|
CTL |
16; 20 |
S10 |
I |
-40…+600 |
5 years |
10 years |
|
II |
-100…+800 |
2 years |
4 years |
|||
|
CTJ |
16; 20 |
S10; S13 |
II |
-40…+760 |
2 years |
4 years |
Response time τ 0,63:
Hot junction |
Sensor response time depending on diameter, s |
||||
|
Modifications: 01.06(U); 01.16(U); 01.08; |
Modifications: 01.12, 01.13 |
||||
|
d = 14 |
d = 16 |
d = 20 |
d = 5 |
d = 7 |
|
|
Insulated from sheath |
30 |
40 |
50 |
5 |
7 |
|
Uninsulated from sheath |
— |
— |
— |
3 |
5 |
|
CTK |
|
Exi |
01.08 |
— |
0 |
21 |
— |
c1 |
H50 |
— |
U |
|
— |
S10 |
— |
20 |
— |
L |
/ |
l |
|
|
|
1 |
|
2 |
3 |
|
4 |
5 |
|
6 |
7 |
|
8 |
9 |
|
10 |
|
11 |
|
12 |
|
13 |
|
14 |
|
NN |
Name |
Code |
Description |
||||
|
1 |
Sensor type |
CTK, CTL, CTN, CTJ, CTM |
Mineral insulated cable thermocouple with type according to IEC 60584 and ASTM E230 |
||||
|
2 |
Explosion protection |
Not filled |
general purpose electrical equipment |
||||
|
Exi |
0ExiaIICT6 X, intrinsically safe circuit |
||||||
|
Exd |
1ExdIICT6, explosion-proof enclosure |
||||||
|
3 |
Modification |
01.06;21.06; 01.06A |
without mounting elements, and angled (A) |
||||
|
01.08; 21.08 |
with welded fitting |
||||||
|
01.16; 21.16; 01.16A |
with assembled cover without mounting elements, and angled (A) |
||||||
|
4 |
Cable gland |
0 |
standard cable gland |
Not permitted for 1ExdIICT6 |
|||
|
А |
for unarmoured cable in metal hose RZCH-15 |
||||||
|
В |
for unarmoured cable in metal hose MRPI-15 |
||||||
|
C |
for unarmoured cable in metal hose DN18 |
||||||
|
D |
for unarmoured cable in metal hose DN20 |
||||||
|
E |
for unarmoured cable in metal hose DN12 |
||||||
|
F |
for pipe assembly, М20х1,5 internal thread |
||||||
|
G |
for pipe assembly, output external thread G1/2 |
||||||
|
H |
for unarmoured cable, 6.5 - 14 mm diameter |
||||||
|
I |
for unarmoured cable, 3.2 - 8.7 mm diameter |
||||||
|
J |
for cable with internal/external sheath diameter: 6,1-11,7/9,5-15,9, single-line wire armoured cable |
||||||
|
К |
for cable with internal/external sheath diameter: 3,1-8.7/6,1-11,5, all armour types |
||||||
|
L |
for cable with internal/external sheath diameter: 6,5-14/12,5-20,9, all armour types |
||||||
|
5 |
Sensor terminal |
10 |
plastic head |
IP55 |
general purpose |
||
|
15; 16;17; 18; 19 |
aluminium head |
IP66/IP68 |
1ExdIICT6 / 0ExiaIICT6 X |
||||
|
20; 22 |
aluminium head |
IP65 |
general purpose |
||||
|
14; 21; 23; 24; 25; 26; 28; 29 |
aluminium head |
IP66 |
0ExiaIICT6 Х or general purpose |
||||
|
27 |
stainless steel |
IP66 |
0ExiaIICT6 Х or general purpose |
||||
|
6 |
Tolerance class |
c0; c1; c2 |
For further details see table 5 page 2-9 |
||||
|
7 |
Output signal, transmitter accuracy symbol, see table 5, page 2-10 |
Not filled |
analogous signal (mV) according to NSC |
||||
|
Т40 |
For terminal heads >14 |
4-20 mА |
for c0 |
||||
|
Т50; Т70 |
for c1 |
||||||
|
Т80; Т100 |
for c2 |
||||||
|
H25 |
4-20 mА +HART |
Individual sensor calibration (c1) |
|||||
|
H40 |
for c0 |
||||||
|
H50 |
for c1 |
||||||
|
H80 |
for c2 |
||||||
|
8 |
Hot junction |
G |
grounded junction, |
general purpose |
|||
|
U |
ungrounded junction, |
1ExdIICT6 / 0ExiaIICT6 X / general purpose |
|||||
|
9 |
Number of wire couple |
Not filled |
1 wire couple |
||||
|
2 |
2 wire couples (2 junctions) |
||||||
|
10 |
Reinforcement material |
S10 |
steel 12Cr18Ni10T |
||||
|
S13 |
steel 10Cr17Ni3M2T |
||||||
|
Т310 |
AISI 310 |
||||||
|
Т45 |
alloy CrNi45U |
||||||
|
Tart |
АРМ Kanthal alloy |
||||||
|
11 |
Outer diameter |
14; 16; 20 |
size (mm) on Customer's choice |
||||
|
12 |
Probe length |
50÷3150 |
probe length L to the working end, mm |
||||
|
13 |
Extension neck length l |
Not filled |
if equal to 120 mm or there are no mounting elements |
||||
|
30÷500 |
specify dimension in mm, oif 120 mm doesn't fit |
||||||
|
14 |
Fitting standard size |
Not filled |
if threaded fitting M33x2 or no fitting is used |
||||
|
Specify thread size |
in other cases |
||||||