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Suresh R
12/27/05 23:27
Read: 609 times

#106070 - Actual Requirement
Responding to: Andy Neil's previous message
Andy Neil said:
It would help if you stated your actual requirement!

Do you simply want a variable-power supply to a 9V heater element (nominally 90W)?

The Heater element is Platinum coated with nickel. When i measured its resistance with multimeter it read .5 ohms.

This element is connected to the secondary of 9V/10A transformer whose primary is controlled by a 110 VAC Variac for heating adjustments. The element is used to seal small glass tubes with following dia in millimeter.
outer: 1.7 - 4.8
inner: 1.4 - 2.5

The sealing Temperature range is at 800 deg celcius .

Now my need is to replace this bulky setup of variac and transformers into some thing which is PCB mountable (or) preferring any other alternatives.

Suggestions required.


List of 11 messages in thread
Variac Alternatives      Suresh R      12/27/05 02:29      
   heater coils      Erik Malund      12/27/05 07:05      
   Why?      Andy Neil      12/27/05 19:57      
      Actual Requirement      Suresh R      12/27/05 23:27      
         large heavy pcb      Terry Lingle      12/28/05 06:23      
            My thought too !      Steve M. Taylor      12/28/05 06:49      
      variable - power supply      Suresh R      12/28/05 23:06      
         More detail      Andy Neil      12/29/05 08:08      
   Maybe it's too simple, but -        Hal Albach      12/29/05 08:06      
      sweet!      Erik Malund      12/29/05 08:36      
      It works for me!      Andy Neil      12/29/05 12:27      

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