Installation of the High Temperature Heater or Heater/Cooler Element

The thermoelectric Heater/Cooler element transfers heat from one side of the element to the other side. Thus it requires good thermal conduction between the Heater/Cooler element and the cooling water in the reservoir. Two options are available to ensure adequate thermal conduction:

• Thermally conductive, electrically insulating pads (reorder Bruker part number 499-000-261)
• Wakefield Engineering Thermal Compound, from Wakefield Engineering (part number 120-2)

Wakefield Engineering Thermal Compound is required to reach temperatures below –20°C but is messier than thermal pads, which are therefore preferred when possible.

Procedure:

1. If you are using the Heater/Cooler Element, place a thermally conductive, electrically insulating pad or spread thermal compound on the base of the Heater/Cooler element. If you are using thermal compound on the base of the heater, also spread some thermal compound onto the mating surface of the magnetic base.

Figure 1: Thermally Conductive, Electrically Insulating Pad Mounted on Heater/Cooler Element

2. Insert the Heater/Cooler or High Temperature Heater element into the connector on the top of the Heater/Cooler Magnetic Base.

3. If you are using the Heater/Cooler element, spread a small amount of thermal compound under the sample puck .

4. Use the copper ring for temperatures < 20°C. It is not needed for temperatures > 20°C:
   1. Coat the side of the Heater/Cooler element with thermal compound.
   2. Coat the inside and base of the copper ring with thermal compound.
   3. Slide the copper ring over the heater/cooler element.

Figure 2: Apply thermal compound to the copper ring

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