Electronics Forum | Fri Dec 03 03:58:12 EST 1999 | Wolfgang Busko
Hi Charly, For batch ovens there is no discussion. For inline loading interval depends on the oven you use, the amount of heat the PCB takes out of the zone and the capability of the oven to get it back in. The approximate time for the PCB to stay i
Electronics Forum | Fri Dec 03 18:27:09 EST 1999 | Dave F
Charley: As Wolfgang says, you're unlikely to be able to put enough (average) boards in a modern reflow oven to be able to thermally load the machine. Ta Dave F
Electronics Forum | Sun Dec 05 22:43:27 EST 1999 | dreamsniper
Charley, Though my reply is quite late, it might be a good info for you and i hope that this info could help or could provide you some views. Some companies practice at least 1 board gap, which means the length of the pcb you are currently loading,
Electronics Forum | Thu Apr 15 11:53:37 EDT 2004 | Claude_Couture
Hi everyone, Our QC manager is bugging me about calibrating the TC readings on our reflow ovens. I keep telling him that doing a regular reflow profiling with a mole is sufficient to see if the oven temperature are normal. The manuals state that TC c
Electronics Forum | Thu Apr 15 16:33:40 EDT 2004 | wgaffubar
We never really use to calibrate the thermocouples on our reflow oven or wave solder systems, but we did disconnect the T/C's and input a calibration standard to check that the computer cards were correctly reading the proper temperature for a given
Electronics Forum | Fri Apr 16 07:34:10 EDT 2004 | Claude_Couture
Ken, thanks for your answer, it is much better presented than what I was fed by our qc. By "calibrating TCs" I meant the readings the controller is displaying on the screen. So that would be the converter that we would check and calibrate. Thank you
Electronics Forum | Thu Apr 15 20:41:22 EDT 2004 | Ken
There are ledgitimate reasons for checking furnace calibrations, but let me clarify what that is. 1. TC's are not necessarily calibrted. Not unless you need "absolute" accuracy. TC's operate against a (non-linear) standard +/- a tolerance. Most
Electronics Forum | Thu Jan 26 20:12:46 EST 2012 | gaz
We have a thermocouple that is basically some tc wire plugged into our reflow oven. The oven converts these voltages into the readings, but are all K type thermocouple wire the same, so would have the same exact same values sent to the ovens cpu? I
Electronics Forum | Thu Jan 08 16:21:05 EST 2004 | Bill
James: The ovens can be calibrated to help get this a little closer. In the computer box are 3 cards (alike) attached to the motherboard. They are called IPS-7 cards. On these cards are 2 potentiometers to calibrate the T/Cs for the heat zones. There
Electronics Forum | Thu Jan 08 11:06:40 EST 2004 | russ
If I read this correctly you have two identical ovens that were setup the same ie zone temps, fan speeds etc... when you ran the same board through each of them one showed a lower board temp. Is this correct? Is the temp of the board 7 deg. lower t
