206
206
These sensors are designed for temperature measurement in liquid and gaseous non-corrosive media, and also corrosive media that do not damage protective cover material. Sensors are recommended to be used together with UNKJ thermowell.
Resistance thermometer is based on flexible cable CNMS-N (cable with nickel conductors, steel sheath and mineral insulation).
It is permitted to bend thermometer along the length (even to make a loop) to put sensing element in measuring area, if it is used in complex-geometry equipment or hard-to-get-at places. Thermometer can be wound on a cylinder, which radius is five times cable diameter d, without thermometer performance change. Bend should not be closer than 60 mm from thermometer working end.
It is recommended to mount resistance thermometers without mounting elements using fittings UNKJ 031 or UNKJ 029 (see "UNKJ units and components" section).
Terminal heads 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, and also cable glands for additional cable fastening, and metal hose fastening, if required.
026 sensors can be equipped with remote transmitters.
Connection diagram |
3-wire |
Tolerance class АА, А, В, С |
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4-wire |
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Vibration resistance GOST R 52931 |
group V3 |
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Nominal (rated) |
6.3 MPa |
105 modification |
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1,0 МПаif equipped with UNKJ 031 fitting |
106, 206 Modifications |
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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 |
- GOST 8. 461-2009 without measuring transmitters; |
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Response time |
does not exceed 8 seconds |
Group of operating |
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 (6 years)* |
2 years |
III |
0.95 for 8 000 hours |
1 year |
2 years |
1 year |
* - Increased mean lifetime with 0,6 failure-free operation possibility for the given period.
Measurement accuracy of sensors with 4-20 mА DC signal and/or digital signal via HART protocol
Output signal |
Nominal |
Measurement |
Output |
Nominal |
Measurement |
4-20mА |
AA3T25; А3T25 |
0,25 % · tn or 0,5 °С |
4-20mА+HART |
AAxH25, AxH25 |
0,25 % · tn or 0,3 °С |
B3T70 |
0,7 % · tn or 1,0 °С |
AxH10, BxH10 |
0,1 % · tn or 0,15 °С |
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A3T40 |
0,4 % · tn or 0,5 °С |
BxH70 |
0,7 % · tn or 1,0 °С |
* - tn thermocouple range should be multiplied by specified value in в %. Select higher value.
** - «х» means number of wires in resistance thermometer connection diagram, х=3 or 4. For example, АА4Н25 or B3H70.
TC type |
Thermowell diameter, mm |
Thermowell material |
Group of |
Tolerance |
Application |
Calibration |
Mean lifetime |
PRTD |
4.5 or 6 |
S10 |
II |
AA |
-50…+150 |
2 years |
4 years |
III |
-50…+250 |
1 year |
2 years |
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I |
A, B, С |
-50…+300 |
5 years |
10 years |
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II |
-50…+450 |
2 years |
4 years |
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III |
В, С |
-50…+600 |
1 years |
2 years |
PRTD |
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Exi |
105 |
— |
А |
21 |
— |
Pt100 |
— |
В |
3 |
Н10 |
— |
S10 |
— |
8 |
— |
L |
/ |
l |
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G1/2 |
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 |
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13 |
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14 |
NN |
Name |
Code |
Description |
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1 |
Sensor type |
PRTD |
Platinum resistance temperature detector |
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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 |
105, 106, 206 |
see drafts |
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4 |
Wire terminal head |
0 |
Free electrode ends 50mm |
IP65 |
0ExiaIICT6Х or general purpose |
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2 |
miniature plug |
IP40 |
general purpose |
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4 |
standard plug |
IP40 |
general purpose |
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Cable gland |
0 |
standard cable gland of terminal head |
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А |
for unarmoured cable in metal hose RZCH-15 |
Terminal heads ≥ 14 |
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В |
for unarmoured cable in metal hose MRPI-15 |
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C |
for unarmoured cable in metal hose DN18 |
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D |
for unarmoured cable in metal hose DN20 |
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E |
for unarmoured cable in metal hose DN12 |
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F |
for pipe assembly, М20х1,5 internal thread |
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G |
for pipe assembly, output external thread G1/2 |
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H |
for unarmoured cable, 6.5 - 14 mm diameter |
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I |
for unarmoured cable, 3.2 - 8.7 mm diameter |
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J |
for cable with internal/external sheath diameter: 6,1-11,7/9,5-15,9, single-line wire armoured cable |
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К |
for cable with internal/external sheath diameter: 3,1-8.7/6,1-11,5, all armour types |
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L |
for cable with internal/external sheath diameter: 6,5-14/12,5-20,9, all armour types |
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5 |
Sensor terminal |
10 |
plastic head |
IP55 |
general purpose |
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15; 16;17; 18; 19 |
aluminium head |
IP66/IP68 |
1ExdIICT6 / 0ExiaIICT6 X |
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20; 22 |
aluminium head |
IP65 |
general purpose |
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14; 21; 23; 24; 25; 26; 28; 29 |
aluminium head |
IP66 |
0ExiaIICT6 Х or general purpose |
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27 |
stainless steel |
IP66 |
0ExiaIICT6 or |
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005 (for 106) |
terminal block |
IP00 |
general purpose |
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50 |
(for 206) |
silicon / shield / silicon |
IP65 |
0ExiaIICT6 X |
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60 |
PTFE / shield / PTFE |
IP65 |
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70 |
glass filament / glass filament / outer armour |
IP40 |
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80 |
PTFE / shield / PTFE in metal hose |
IP65 |
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6 |
Type of TC |
Pt100, Pt500, Pt1000 |
NSC according to GOST 6651-2009 |
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7 |
Tolerance class |
АА, А, В, С |
Tolerance class according to GOST 6651-2009 |
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8 |
Connection diagram |
3, 4 |
3- and 4-wire connection diagram |
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9 |
Output signal, measuring transmitter accuracy designation - see table 3 at page 6-3 |
Not filled |
analogous signal (Ohm) according to NSC |
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T25; T25 |
For terminal |
4-20 mА |
for AA3 and A3 |
Only for |
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T40 |
for A3 |
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T70 |
for B3 |
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H10 |
4-20 mА +HART |
for А4, В4, А3, В3 |
individual |
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H25, H25 |
for АА4, А4, АА3, А3 |
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H70 |
for В3, В4 |
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10 |
Cable sheath |
S321 |
AISI 321 (tip material - steel 12Cr18Ni10Т) |
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S316 |
AISI 316 (tip material - steel 10Cr17Ni13M2Т) |
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11 |
Outer diameter |
4.5 or 6 |
dimensions in mm |
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12 |
Probe length, L |
50÷3150 |
probe length L to the working end, mm, can be longer than 3150 mm |
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13 |
Extension |
Not filled |
if equal to 120 mm or there are no mounting elements |
If terminal head is selected |
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30÷500 |
specify dimension in mm, oif 120 mm doesn't fit |
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Extension wire length ℓ |
100÷30,000 |
specify dimensions in mm 500, 1000, 2000 3150 and more |
If wire |
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14 |
Fitting standard size |
Not filled |
if threaded fitting M20x1.5 or no fitting is used |
PRTD Exi 206–050 – Pt100 – А4 – S10 – 4,5 – 250/1000 |
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Product type |
PRTD |
Platinum resistance temperature detector |
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Explosion protection |
Exi |
0ExiaIICT6 X |
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Modification |
206 |
|
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Wring (wire code) |
050 |
silicon insulation |
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Type of TC |
Pt100 |
|
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tolerance class and connection diagram |
А4 |
Class А, diagram 4-wire |
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Output signal |
|
according to NSC |
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Sheath material |
S10 |
steel 12Cr18Ni10T |
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Working end diameter |
4.5 |
mm |
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Probe length L |
250 |
mm |
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Extension neck length ℓ |
1000 |
mm |