Thermocouple: cartridge with thermocouple.

The best complement

Cartridges can be made with inbuilt sounding lead at any point of the cartridge, according to the customer's requirements. The advantages of the sounding lead are countless. For instance, lenght of catridge life, exactness of localised temperature, energy saving and where a conventional sounding lead cannot be housed due to a question of space. Several types of temperature regulators which require a special thermocouple can be found on the market, eg, J or K.

Thermocouple isolated "Tr.A" The "Tr.A" model is fully insulated against the heater wire of the conections and the protecting sheath. Among its qualities the protection of the instruments for temperature measurements stands out. This is very important as the reading takes place within a few minutes and the read-out continues remains fast.
Thermocouple "Tr.B" (standard) The joint of the thermocouple, in this model, is in contact with the protecting sheath of the cartridge heater, thereby giving a quick and accurate reading where the cartridge is housed.
Thermocouple "Tr.C" This model can be housed according to the customer's requirements. This is important for long cartridges so that a medium temperature is obtained.

Installation tips

When a thermocouple cartridge heater is installed, several factors must be considered. If the temperatures of several cartridge heaters need to be controlled, it is advisable to place the thermocouple in the middle of the group. The thermocouple should never be placed at one of the ends of the cartridge as this will send out wrong inner temperature information to the heater.
The wire of the thermocouple is 1 meter long, you should compensate and adjust your regulator to have a more accurate temperature reading.

TYPES OF TERMOPAR complying with German standards DIN 4374
Code	Positive	Color	Negative	Color	Working Temperature
Type J	Iron	Red	Constantan	Blue	0-750ºC
Type K	Chronium	Red	Aluminum	Green	0-1250ºC

TYPES OF TERMOPAR complying with American standards ANSI/MC 96.1
Code	Positive	Color	Negative	Color	Working Temperature
Type J	Iron	White	Constantan	Red	0-750ºC
Type K	Chronium	Yellow	Aluminum	Red	0-1250ºC