Watt-Flex split-sheath cartridge heaters can be manufactured with a groove along the exterior of the cartridge to accommodate a needle-type thermocouple for more accurate temperature sensing and control.
Watt-Flex external thermocouples outperform internal monitors used in conventional heaters. With Watt-Flex heaters, you can:
Measure temperature at the precise point of heat transfer.
Unlike conventional heaters with internal thermocouples that measure internal heater coil temperature, Watt-Flex external thermocouples measure more precisely at the point where heat transfers from the heater to the host metal.
Monitor temperature at any point along the heater.
Dalton Watt-Flex heaters give you the flexibility to monitor heat at any point along the heater, instead of at pre-defined fixed points with internal monitors in conventional heaters.
Replace heater or thermocouple independently.
With Watt-Flex external thermocouples, you can replace either the heater or the thermocouple independently, without having to replace the entire heater/thermocouple as with conventional heater designs.
Thermocouple Specifications
Maximum lengths:
15" maximum for grooved heaters with 1/4" or 3/8" diameter heaters. 7" maximum for grooved heaters with 1/2" diameter heaters.
Longer heaters using 1/2" diameter or larger heaters, can be center- grooved between the legs to any depth between 6" to 15".
Thermocouples:
Type J with 48" leads (standard) or to specification.
Type K with 48" leads (standard) or to specification.
Needle diameters:
0.040" for 1/4" diameter heaters and all center grooves.
0.062" for side-grooved 3/8" and 1/2" diameter heaters.
Watt-Flex® with Thermocouples
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