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Suresh R
12/27/05 23:27
Read: 595 times
Chennai
India


 
#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.

Thank's
-suresh

List of 11 messages in thread
TopicAuthorDate
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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