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General Tools and Instruments CIH20DL User Manual

Page 25

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To eliminate measurement error, the CIH20DL must be moved close enough so the

motor is the only object in the target area of its IRT (see below figure). For a motor

with an area of 1 ft

2

and using an IRT with a D:S ratio of 8:1, the optimum

measurement distance would be 8 ft.
For best results, the targeted area (spot) should fall within the target’s boundaries

Measuring a motor’s temperature from the wrong (top) and right (bottom) distance

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CIH20DL-FINAL-122111_awb 12/21/11 9:58 AM Page 25