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High density cartridge heaters
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  3-phase CCHC
CCHC + thermocouple
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CCHC with intern thermocouple


Products > Cartridge > High density cartridge heaters > CCHC with intern thermocouple


The whole range of cartridge heaters can be equiped with TCJ : Iron/Constantan ou de TCK: Nickel Chrome/Nickel Alloyed, with or without special leads and accessories.

Standard : leads and TC length : 1000 mm (maxi)
On demand : length 500 or 250 mm

We can provide 4 different positions for the internal thermocouple according to the final use and accuracy required :

TC at the bottom of the CCHC
TC at the bottom of the CCHC, insulated from earth
TC in the center of the heating core
TC in the center of cartridge near the tube


Style of thermocouple and norms

Polarity International French American German English Japanese
Norms IEC 584 NFC 42324 ANSI MC 96.1 DIN 43714 BS 1843 JICS 1610.1981
J
0 to 760°C
Iron (+)
magnetic
Black Yellow White Red Yellow Red
Constantan(-)
No magnetic
White Black Red Blue Blue White
K
0 to 1260°C
Ni. Chrome(+)
no magnetic
Green Yellow Yellow Red Brown Red
Ni. Alloyed(-)
Magnetic
White Purple Red Green Blue White


Important :
All operating temperatures of the chart are measured on the conducting wires of the thermocouple probes.
According to the mounting and use the TC can be facing temperatures much higher than indicated for the regulation system (especially for TC 1 and TC 2) and result to be damaged (see below graph).



TC at the bottom of the CCHC
TC J1 or TC K1


Solution not recommanded for hight temperature or flux (W/cm²).
The thermocouple is located at the bottom of the CCHC, not insulated from the earth.
If the cartridge is mounted in a blind hole it will supply a good reading of the temperature with an average response time.

Mounted in a hole opened at both ends, or too big, the thermocouple will lead to overheating, rapid damages on the cartridge heater, and non-precise regulation of the mold.
  • Average inertia
  • Quick temperature rise
  • Not insulated from earth.
Special assembly
Tc at the bottom of the CCHC
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TC at the bottom of the CCHC, insulated from earth
TC J2 or TC K2


The thermocouple is located at the bottom of the CCHC but insulated from the earth.
Very used to protect the electronic part of the regulation.
Response time : slow.
Precautions of use : same than above.


  • Inertia : important,
  • Quick temperature rise,
  • Insulated from the earth.
Standard assembly for Ø 6.35 to 8
TC at the bottom of the CCHC, not insulated from earth
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TC in the center of the heating core
TC J3 or TC K3

Solution recomanded for all applications

The junction of the thermocouple is located in the heating core to monitor the inner temperature of the CCHC.
It can be extremely helpful in evaluating the heat transfer efficiency of the application, and avoiding overheating parts in the mold.

Useful for uses which require precise measures of temperature and very short response time.

  • Very low inertia.
  • Low rise of temperature
  • Precise regulation of the temperature
  • Insulated from the earth.
Standard assembly for Ø 9.52 to 20
TC in the center of the heating core
Back


TC in the center of the cartridge near the tube
TC J4 or TC K4


TC in the center of the cartridge near the tube
Special assembly only for Ø 12.5 à 20
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