Electric Heating Co., Inc

Center Groove

Last week we looked at the side groove for the inclusion of a thermocouple with a Watt-Flex® cartridge heater. Benefits are replacability of the t/c,temperature monitoring at the point of temp. transfer and the ability to look at the temperature anywhere along the profile of the sheath. There are, however, limitations on side grooving that have to do with the size of the heater.

If the heater is 1/2" diameter and longer than 7" or any larger diameter, it must be center grooved. This groove will extend roughly 6" into the heater from the terminal end, and a needle-type thermocouple can be inserted.

This can be assembled into a header with stainless hose or braid and forms a convenient package for heat and control.

The thermocouple will still monitor the sheath heat at a location more accurate to the actual temperature being transferred to the host metal. Conventional heaters are restricted to measuring internal coil temperature.

Friday Funnies

FOR LEXOPHILES (LOVERS OF WORDS):

1. He broke into song because he couldn't find the key.
2. A calendar's days are numbered.
3. A lot of money is tainted: 'Taint yours, and 'taint mine.
4. A boiled egg is hard to beat.
5. He had a photographic memory which was never developed.
6. A plateau is a high form of flattery.
7. A short fortuneteller who escaped from prison: a small medium at large.
8. Those who get too big for their britches will be exposed in the end.
9. When you've seen one shopping center you've seen a mall.
10. If you jump off a Paris bridge, you are in Seine.
11. When she saw her first strands of gray hair, she thought she'd dye.
12. Bakers trade bread recipes on a knead to know basis.
13. Santa's helpers are subordinate clauses.
14. Acupuncture: a jab well done.

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

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