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TGID
05-March-10

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Continuous Coil

Your cartridge heater customers are continually amazed when they learn about the con- struction of a conventional heater. Conventional heaters of eight inches or more have two (or more) sections of resistance coil, each wired in parallel to two rods that transverse the heater. The first disadvantage of this construction is that heat-up is extremely uneven as shown in the customer generated data below.

The Dalton Electric Watt-Flex® cartridge heater has a continuous coil running the length of the heater in one leg and then back again in the other leg. From an electrical standpoint, it is simply one large, single resistor. This provides an absolutely even temperature profile as shown at: http://www.daltonelectric.com/EWW/Dalton-Profile.htm

 

Dalton Electric Watlow Firerod Heater

 

The Watt-Flex® cartridge heater has a continuous coil running the length of the heater in one leg and then back again in the other leg. From an electrical standpoint, it is simply one large, single resistor. This provides an absolutely even temperature profile as shown at: http://www.daltonelectric.com/EWW/Dalton-Profile.htm

The temperature drop that you see at either end of the measurement is a result of the technique by which the customer measured temperature. It was done on the outside of a sealing bar and demonstrates the radiant temperature loss of any heat sink. Often, due to the even profile of the Watt-Flex heater, it can replace a conventional heater with distributed wattage to compensate for this heat loss.

  


Friday Funnies

A STORY ABOUT EVERYBODY

This is a story about four people named Everybody, Somebody, Anybody, and Nobody. There was an important job to be done and Everybody was asked to do it. Everybody was sure Somebody would do it. Anybody could have done it, but Nobody did it.

Somebody got angry about that, because it was Everybody's job. Everybody thought Anybody could do it but Nobody realized that Everybody wouldn't do it. It ended up that Everybody blamed Somebody when Nobody did what Anybody could have done.

 



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Dalton Electric Heating Co., Inc (978)356-9844
28 Hayward Street Ipswich, MA 01938 USA

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