108
108
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.
It is recommended to mount temperature sensors without mounting elements and with protection sleeves using fittings UNKJ 031 or UNKJ 029 (see "UNKJ units and components" section).
107 and 108 modifications are equipped with removable sensing element (SE) PRTD 106-005, which is fixed in head by means of spring-loaded screws
Sensors can be of explosion protection type 0ExiaIICT6 X or 1ExdIICT6 according to GOST 30852.10-2002. For further details see "Alternative designs & Ordering information" below.
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.
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 |
107 modification |
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1 МПаif equipped with UNKJ 031 fitting |
108 modification |
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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 |
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; |
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 |
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 |
10, 8 |
S10 |
I |
A, B, С |
– 50…+300 |
5 years |
10 years |
II |
– 50…+450 |
2 years |
4 years |
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III |
В, С |
– 50…+600 |
1 year |
2 years |
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10 |
S13 |
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II |
АА |
– 50…+150 |
2 years |
4 years |
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III |
– 50…+250 |
1 year |
2 years |
Response time:
Sensor response time depending on diameter, s |
|
d = 8 |
d = 10 |
20 |
30 |
PRTD |
|
Exi |
107 |
— |
А |
21 |
— |
P100 |
— |
В |
3 |
Н10 |
— |
S10 |
— |
8 |
— |
L |
/ |
l |
|
G1/2 |
1 |
|
2 |
3 |
|
4 |
5 |
|
6 |
|
7 |
8 |
9 |
|
10 |
|
11 |
|
12 |
|
13 |
|
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 |
107, 108 |
see drafts |
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4 |
Cable gland |
0 |
standard cable gland of terminal head |
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А |
for unarmoured cable in metal hose RZCH-15 |
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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 |
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 |
aluminium head |
IP66 |
0ExiaIICT6 Х or general purpose |
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27 |
stainless steel |
IP66 |
0ExiaIICT6Х or general purpose |
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6 |
Type of TC |
50М, 100М, 50P, 100P, 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 heads ≥14 |
4-20 mА |
for AA3 and A3 |
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T40 |
for A3 |
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T70 |
for B3 |
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H10, 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 outer sheath material |
S10 |
steel 12Cr18Ni10T |
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S13 |
steel 10Cr17Ni3M2T |
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11 |
Outer diameter |
8 |
size (mm) on Customer's choice. |
S10 |
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10 |
S10, S13 |
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12 |
Probe length, L |
50÷3150 |
probe length L to the working end, mm |
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13 |
Extension neck length ℓ |
Not filled |
if equal to 120 mm or there are no mounting elements |
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30÷500 |
specify dimension in mm, oif 120 mm doesn't fit |
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14 |
Fitting standard size |
Not filled |
if threaded fitting M20x1.5 or no fitting is used |
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Specify thread size |
in other cases |
PRTD Exi 108-028–Pt100-В3Н70 – S13 - 10 – 800 |
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Product type |
PRTD |
Platinum resistance temperature detector |
|
Explosion protection |
Exi |
0ExiaIICT6 X |
|
Modification |
102 |
without mounting elements |
|
Cable gland |
0 |
standard |
|
Wring (terminal head code) |
28 |
IP66 |
|
Type of TC |
Pt100 |
|
|
tolerance class and connection diagram |
В3 |
Class B, 3 wire diagram |
|
Output signal (accuracy class) |
Н70 |
4-20mА+HART |
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Sheath material |
S13 |
steel 10Cr17Ni3M2T |
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Working end diameter |
10 |
mm |
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Probe length L |
800 |
mm |
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PRTD 108-020–Pt100-В3 – S10 - 10 – 400 |
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Product type |
PRTD |
Platinum resistance temperature detector |
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Explosion protection |
― |
general purpose |
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Modification |
107 |
with thrust ring |
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Cable gland |
0 |
standard |
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Wring (terminal head code) |
20 |
IP65 |
|
Type of TC |
Pt100 |
Pt100 |
|
tolerance class and connection diagram |
В3 |
Class B, 3 wire diagram |
|
Output signal (accuracy class) |
― |
analogous (Ohm) |
|
Sheath material |
S10 |
steel 12Cr18Ni10T |
|
Working end diameter |
10 |
mm |
|
Probe length L |
400 |
mm |