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4 thermocouple conditioning and preparation, Figure 8. bending tip of thermocouple, 5 thermocouple attachment to ihs – Intel WiFi Link 5100 User Manual

Page 18: Thermocouple conditioning and preparation, Thermocouple attachment to ihs, Bending tip of thermocouple

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Intel

®

5100 MCH Chipset

Intel

®

5100 Memory Controller Hub Chipset for Communications, Embedded, and Storage Applications

TDG

July 2008

18

Order Number: 318676-003US

5.1.4

Thermocouple Conditioning and Preparation

1. Use a calibrated thermocouple as specified in

Table 5

.

2. Measure the thermocouple resistance by holding both wires on one probe and the

tip of the thermocouple to the other probe of the DMM (compare to thermocouple

resistance specifications).

3. Straighten the wire for about 38 mm (1½") from the bead to place it inside the

channel.

4. Bend the tip of the thermocouple to approximately a 45 degree angle by 0.8 mm

(0.030") from the tip (

Figure 8

).

5.1.5

Thermocouple Attachment to IHS

Caution:

To avoid impact on the thermocouple during the SMT process, reflow must be

performed before attaching the thermocouple to the grooved MCH IHS.

1. Clean the thermocouple wire groove with isopropyl alcohol (IPA) and a lint-free

cloth removing all residue prior to thermocouple attachment.

Figure 7.

Orientation of Thermocouple Groove Relative to Package Pin

Figure 8.

Bending Tip of Thermocouple