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Introduction:
Armored thermocouple is a sensor used for temperature measurement
and control, with a wide range of applications and important
functions. The basic principle of armored thermocouples is to use
the thermoelectric effect of two different metal wires to measure
temperature changes and convert them into corresponding voltage
signals.
It has the characteristics of fast response, wide temperature
range, high accuracy and stability, and plays an important role in
industry, scientific research and other fields.
There are some key factors to consider when selecting an armored
thermocouple. The first is the temperature range. Select the
appropriate model based on specific application needs to ensure
normal operation within the target temperature range. The second is
the material of the protective sleeve, which needs to have
properties such as high temperature resistance, corrosion
resistance and mechanical strength to protect the wires of the
armored thermocouple from the external environment. In addition,
factors such as the size, response time, and connection method of
the armored thermocouple need to be considered.
In summary, the armored thermocouple is a sensor widely used in the field of temperature measurement and control. It has the advantages of fast response, wide temperature range, high accuracy and stability, and plays an important role in industry, scientific research and various other fields. Choosing the right armored thermocouple can meet the needs of a specific application and provide an accurate and reliable temperature measurement solution.
Product Features:
Advantage:
Application areas:
Code | Wire Component of the thermocouple | ||
+Positive leg | - Negative Leg | ||
N | Ni-Cr-Si(NP) | Ni-Si-magnesium (NN) | |
K | Ni-Cr(KP) | Ni-Al(Si) (KN) | |
E | Ni-Cr(EP) | Cu-Ni (EN) | |
J | Iron (JP) | Cu-Ni (JN) | |
T | Copper (TP) | Cu-Ni (TN) | |
B | Platinum Rhodium-30% | Platinum Rhodium -6% | |
R | Platinum Rhodium-13% | Platinum | |
S | Platinum Rhodium -10% | Platinum |
Material | Type | Grade | Working temperature (deg) | Tolerance | Standard | |
Long Term | Short Term | |||||
NiCr-NiSi | K | 1 | -40~1100 | -40~1300 | ±1.5 deg | GB/T 2614-1998 |
2 | ±2.5 deg | |||||
NiCr-CuNi | E | 1 | -40~800 | -40~900 | ±1.5 deg | GB/T 4993-1998 |
2 | ±2.5 deg | |||||
Fe-Constantan | J | 1 | -40~600 | -40~800 | ±1.5 deg | GB/T 4994-1998 |
2 | ±2.5 deg | |||||
Cu-CuNi | T | 1 | -200~300 | -200~400 | ±0.5 deg | GB/T 2903-1998 |
Outer Sheath(mm) | core wire Dia.( mm) | Outer Sheath(mm)o core wire Dia.( mm) | Length(m) | |||||
Out Dia | Wall Thickness | K,N,E,J,T Types | S,R,B Types | K,N Types | E,J,T Types | S,R Types | B Types | |
0.5 | 0.05-0.10 | 0.08-0.12 | ... | SS304, SS321, SS316, SS310, INCL600 | SS30, SS32, SS316 | INCL60, INCL800 | INCL60, INCL800 | 500 |
1.0 | 0.10-0.20 | 0.15-0.20 | ... | 300 | ||||
1.5 | 0.15-0.25 | 0.23-0.30 | ... | 200 | ||||
1.6 | 0.16-0.26 | 0.26-0.36 | ... | 200 | ||||
2.0 | 0.25-0.35 | 0.40-0.50 | 0.25-.030 | 180 | ||||
3.0 | 0.38-0.48 | 0.50-0.60 | 0.30-0.40 | 80 | ||||
3.2 | 0.48-0.58 | 0.58-0.68 | 0.30-0.40 | 75 | ||||
4.0 | 0.52-0.62 | 0.60-0.70 | 0.35-0.40 | 70 | ||||
4.8 | 0.73-0.83 | 0.75-0.85 | 0.40-0.45 | 40 | ||||
5.0 | 0.78-0.88 | 0.80-0.90 | 0.40-0.45 | 40 | ||||
6.0 | 0.98-1.08 | 0.90-1.10 | 0.45-0.50 | 30 | ||||
6.4 | 1..05-1.15 | 1.02-1.12 | 0.45-0.50 | 30 | ||||
8.0 | 1.30-1.44 | 1.30-1.40 | 0.45-0.50 | 20 | ||||
12.7 | 1.75-1.90 | 1.95-2.05 | ... | 10 |
Q&A:
What are the advantages of armored thermocouples over other
temperature sensors?
Armored thermocouples have the advantages of fast response, high
measurement accuracy and high durability. Compared to other
temperature sensors, armored thermocouples provide accurate and
reliable temperature measurements over a wide temperature range.
How to calibrate armored thermocouples?
Calibration of sheathed thermocouples is usually performed by
exposing them to a calibration source of known temperature. Based
on the calibration results, the relationship between temperature
and potential difference can be established to obtain accurate
temperature measurements.
What temperature ranges are armored thermocouples suitable for?
Armored thermocouples are available over a wide temperature range.
Different types of armored thermocouples have different temperature
range adaptability. For example, Type K thermocouple is suitable
for the range of -200°C to 1,300°C, while Type J thermocouple is
suitable for the range of -210°C to 760°C. . The specific selection
of the appropriate type of armored thermocouple depends on the
temperature range to be measured and the requirements of the
application environment.