How to Change Thermocouple Type (Type S or Type K) on a Genesis

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How to Change Thermocouple Type (Type S or Type K) on a Genesis

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How to Change Thermocouple Type (Type S or Type K) on a Genesis

The type of thermocouple on a Genesis can be either Type K or Type S.

  1. You must have the appropriate thermocouples and lead wire to switch from one to the other; either Type K thermocouples and wire or Type S. See this link for more information.
  2. To begin, you must access the "TC-Type" menu to choose the appropriate thermocouple type.  
    1. Select the "Menu" button
    2. Next, select the "6-Factory Config." button
    3. Enter "443" and then select the "Save" button
    4. Then, select the "1-TC-Type" button
    5. Finally, choose the type of thermocouple that is appropriate for your kiln and save.
  3. For precaution, a small jumper must be moved on the circuit board when going from K to S. 
    1. This jumper is located at bottom left of the board just above the marking “HDR5”.
    2. If the jumper is on only one of the prongs the control is set for Type K. If the jumper is on both of the two prongs the control is set for Type S.
  4. This precaution keeps you from accidentally having it set for K with S thermocouples or vise-versa.
  5. If there is a mismatch between the jumper setting and the software setting you will get an error code: ERR9.

CAUTION: (A severe overfiring can occure if you have the control programmed for a Type S thermocouple and you are using a type K thermocouple).

Additional Actions to Take

Standard Practice at L&L

The following is the standard practice describing thermocouple polarity for Type K and Type S thermocouples that is used on L&L kilns.

Testing polarity of a Type K thermocouple

You can easily test the polarity of a Type K thermocouples. The negative wire is MORE magnetic than the positive wire. Just put a magnet up to each wire. One will be more magnetic than the other. (This does not work for Type S thermocouples.)

TYPE K (USA)

  • Type K Thermocouple lead wire (Yellow on the outside)
  • Yellow Wire = PLUS (+)
  • Red Wire = MINUS (-)
  • The thermocouples are marked with a (+) and (-). Also the negative (-) is marked with a red marker. The negative wire is MORE magnetic than the positive wire.
  • NOTE: Ground the outside metal foil wrapper to the negative terminal of the control.

TYPE S (USA)

TYPE K (EUROPE)

  • Thermocouple wire (Yellow on the outside)
  • Green Wire = PLUS (+)
  • White Wire = MINUS (-)
  • The thermocouples are marked with a (+) and (-). Also the negative (-) is marked with a red marker. The negative wire is MORE magnetic than the positive wire.

TYPE S (EUROPE)

  • Type S Thermocouple wire (Green on the outside)
  • Orange Wire = PLUS (+)
  • White Wire = MINUS (-)
  • The thermocouples are marked with a (+) and (-). Also the negative (-) is marked with a black marker.

NOTES

  1. See this for information on how thermocouples work.
  1. Unplug kiln.
  2. Remove or hinge open the control box.
  3. Remove the Thermocouple Lead Wire from the Thermocouple.
  4. Unscrew the Thermocouple from the kiln.
  5. Remove Thermocouple.
  6. Install a new Thermocouple and screw in place.
  7. Replace Thermocouple Lead Wire and tighten. Be sure to get red matched to the MINUS (Negative) sign and the Yellow matched to the PLUS (Positive) sign.

See this video: