From uncertaintyto stability
02.21
050
02.21
These sensors are designed for the use as "charging" or "control" thermocouples in heat treatment equipment, such as soaking pits, annealing, ageing and tempering furnaces.
"Charging" ("embedded") thermocouples are used for temperature measurement of details, prototypes, blanks and feedstock. Charging thermocouple is installed inside material charge or in touch with it.
Control thermocouple is used for heating uniformity control or thermal field uniformity control during certification of furnace or other equipment.
Thermocouple is made of single-wire conductors with mullite silica, ceramic or silica fibre insulation.
Thermocouple with insulation made of ceramic beads up to 25 mm long are also available. By special order thermocouple with ceramic beads up to 10mm long can be produced.
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Hot junction |
one |
exposed |
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Vibration resistance GOST R 52931 |
group L1 |
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Nominal (rated) pressure |
0,1 MPa |
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Seismic resistance MSK-64 |
Not rated |
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Climatic category GOST 15150 |
UHL2 Ambient temperature: |
-60..+120ºС |
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Calibration |
GOST 8.338-2001 - for sensor fitting length larger than 250 mm |
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Reliability measures |
Not rated |
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Response time τ 0,63 |
2 |
0.8mm diameter wire |
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3 |
1.2mm diameter wire |
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CT type |
Insulation material |
Group of operating |
Application |
Calibration |
Mean lifetime |
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CTK |
VH – high-temperature glass fibre |
IV |
-40…+650 |
Not rated |
Not rated |
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CA – ceramic fibre |
-40…+1200 |
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QA – silica fibre |
-40…+1000 |
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К – ceramic beads |
-40…+1200 |
CTK |
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02.21 |
— |
000 |
— |
c1 |
— |
E |
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— |
К |
— |
1.2 |
— |
L |
— |
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1 |
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2 |
3 |
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4 |
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5 |
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6 |
7 |
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8 |
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9 |
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10 |
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11 |
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NN |
Parameter name |
Code |
Description |
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1 |
Sensor type |
CTK, CTJ |
Mineral insulated cable thermocouple with type according to IEC 60584 and ASTM E230 |
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2 |
Explosion protection |
Not filled |
general purpose electrical equipment |
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3 |
Modification |
02.21 |
Thermocouple wire sensor without mounting elements |
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4 |
Terminal head |
000 |
Free electrode ends 50mm |
IP00 |
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200 |
miniature plug |
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400 |
standard plug |
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5 |
Tolerance class |
c1; c2 |
For further details see table 5 page 2-9 |
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6 |
Hot junction design |
0 |
exposed junction, |
general purpose |
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7 |
Number of wire couples |
Not filled |
1 wire couple |
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8 |
Insulation material |
VH |
high-temperature glass fibre |
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CA |
ceramic fibre |
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QA |
silica fibre |
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CBR |
ceramic beads, round |
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CBО |
ceramic beads, oval |
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9 |
Wire diameter |
1.2 |
dimensions in mm |
ceramic beads, round, oval |
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0.8 |
dimensions in mm |
VH, CA, QA fibres |
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10 |
Probe length, L |
1000÷20 000 |
size (mm) on Customer's choice (up to 300 m on special order) |
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11 |
Additional parameter |
Not filled |
Ceramic beads length 25 mm |
CBR, CBО |
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10 |
Ceramic beads length 10 mm |
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CTK 02.21-200 - c1 - E - CA – 0,8 - 15000
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Product type |
CT |
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Type of TC |
K |
chromel-alumel |
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Explosion protection |
- |
general purpose |
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Modification |
02.21 |
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Terminal head |
2 |
miniature plug |
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Tolerance class |
c1 |
first class |
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Junction type |
E |
exposed |
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Insulation material |
СА |
ceramic fibre |
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Wire diameter |
0.8 |
mm |
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Probe length |
15,000 |
mm |
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CTK 02.21-000 - c1 - E - CBО – 1,2 - 10000
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Product type |
CT |
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Type of TC |
K |
chromel-alumel |
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Explosion protection |
- |
general purpose |
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Modification |
02.21 |
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Terminal head |
0 |
Free electrode ends |
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Tolerance class |
c1 |
first class |
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Junction type |
E |
exposed |
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Insulation material |
CBО |
ceramic beads, oval |
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Wire diameter |
1.2 |
mm |
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Probe length |
10,000 |
mm |
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Ceramic beads length |
- |
25 mm |
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