Iwatsu SY-956, Instruction Manual

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4.7 Measurable samples
● Table 4-1 shows the sizes of measurable samples
Table 4-1 Measurable sample size and specifications of the provided B coils
Types of B coils
Measurable sample sizes
[mm]
Size of the bobbin
hole [mm]
Number
of Turns
Thickness Width Length
Thickness
direction
Width
direction
B Coil 01 1
≧
10
≧
36
≦
1.5
±0.1
12
±0.1 35
B Coil 02 1
≧
30
≧
36
≦
1.5
±0.1
32
±0.1 100
Coil wound by user 3
≧
35
≧
36
≦ － － －
● Table 4-2 shows the conditions of samples that make them unmeasurable, other than size.
Never measure
items with the following conditions . Not only will it lead to incorrect measurement, but it may also cause a
failure or damage.
Table 4-2 Unmeasurable conditions of samples
Conditions of samples Expected failures

Wet samples Moisture will be attached to the yoke, causing it to rust.

Dirty samples
Dirt will be attached to the yoke, causing it to
deteriorate.

Samples with sharp
bumps
Pole faces of the yoke or the press block may get
damaged when the slider is descending.

Samples with hard
foreign objects attached
● Table 4-3 shows the conditions of samples that result in incorrect measurements.
Table 4-3 Conditions of samples that result in incorrect measurements
Conditions of samples Expected failures

Samples with uneven
width
Magnetic flux density inside the sample will be
nonuniform.

Sample that deforms

Samples with uneven
thickness
Air-gaps are formed between the sample and the pole
faces of the yoke.

Samples with uneven
surface

Samples with foreign
objects attached