External
Thermocouples - an Exclusive Watt-Flex Option
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 an operational component 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.
Type K with 48" leads.
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.
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