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21 

4.8 Setting a sample 

 

●  Following shows how to set a sample. 

 

(1)  Remove  dust  from  the  pole  faces  of  the  measuring 

yoke  with  the  provided  blower  brush.  Make  sure  no 
dust or dirt is on the sample. Remove all the dust and 
dirt. 
 

(2)

 

Slide  the  sample  through  the  installed  B  coil  and 
place  the  left  and  right  sides  of  the  sample  on  the 
pole  faces  of  the  measuring  yoke,  as  shown  in  Fig. 
4-13. 
When  using  a  long  sample,  use  the  guide  arms  to 
align  the  center  in  the  widthwise  direction  of  the 
sample and the center of the measuring yoke’s pole 
faces. 
 

(3)  Determine the setting value of the Slider Position No. Switch P. 

The value is determined from the thickness of the sample [mm] and the force with which the slider presses 
the sample [N]. Two examples of how to determine the value are shown below. 

 

[Example 1] 

Determine the value directly from the Slider Position   

No. Table 
When  the  thickness  of  a  sample  is  1.0  [mm]  and  the  force  with 
which to press the sample is 3.9 [N], 

P=6

 as shown in Fig. 4-14. 

 

[Example 2]

 Determine the value from the conversion formula. 

When  determining  the  value  directly  from  the  table  is  difficult, 
determine the value of the Slider Position No. P with the conversion 
formula given in the table. 
When the thickness of a sample is T=0.7 [mm] and the force with 
which to press the sample is F=5.7 [N],   
Substitute T and F into the conversion formula:   

P=F-2×T+4 
P=5.7-2×0.7+4=8.3 

Round the number to the nearest integer to find 

P=8

 

*

 

The value of P is from 1 to 16 and cannot exceed 16

. Any other 

number is invalid and the slider doesn't descend. 

*

  The  load  value  on  the  table  is  the  typical  value.  ±3  [N]  deviation 

from the displayed value may occur. 

 
(4)  Set the Slider Position No. Switch to the value P determined in (3). 
 
(5)  Close the cover. Push the cover in until you hear a clicking sound. 

When  the  cover  is  properly  closed,  blinking  of  the  RELEASE 
button and the SET button stops. 

 

*

  Measurement cannot be conducted while the cover is open. 

 
(6)  Move the slider down by pressing the SET button. Setup is completed when the LED on  the SET button 

stops blinking and stays on. 

 

*

 

Visual confirmation of the contact

 between the sample and press block and between the sample and 

the pole faces of the measuring yoke 

is possible

 by opening the cover when the SET button LED is on. 

 

 

 

Fig. 4-14 Slider Position No. Table

 

Fig. 4-13 Setting a sample

 

Place the sample parallel to the 

pole faces 

 

Place the sample so that it sticks 

out symmetrically. 

Thickness 

1.0 [mm] 

Force 3.9 [N] 

Содержание SY-956

Страница 1: ...Instruction Manual Mini Single Sheet Tester SY 956...

Страница 2: ...2014_2015 IWATSU TEST INSTRUMENTS CORPORATION All rights reserved...

Страница 3: ...operation or failure to observe the warning may result in death or serious injury Cautions Incorrect operation or failure to observe the caution may result in injury or damage to instrument Notes Par...

Страница 4: ...is product if wet otherwise an electric shock or fire could occur If water gets on or inside this product turn off the main power switch on the front side and remove the power plug from the receptacle...

Страница 5: ...d since this product automatically adapts to the power supply voltage Strictly observe items below when handling the power cord If not an electric shock or fire may occur If the power cord is damaged...

Страница 6: ...y cause an electric shock fire or failure If water chemical metal object gets in turn off the main power switch on the front side and remove the power plug from the receptacle Then contact Iwatsu offi...

Страница 7: ...fire may occur In addition if a 2 core power cord is used a fire may occur Unless specified when purchasing this product the power cord suitable for 100V system center voltage 100V to 120V is attached...

Страница 8: ...hock may occur Do not use any damaged cable or power cord Otherwise an electric shock or fire may occur If this product will not be used for a long time remove the power plug from the receptacle for s...

Страница 9: ...or an item damaged during transportation immediately contact Iwatsu office or our sales distributors Components Mini Single Sheet Tester SY 956 main unit 1 Accessories Mini Single Sheet Tester cable...

Страница 10: ...ervice center Any failure which occurs within the term of warranty and for which Iwatsu is responsible should be repaired without any cost When shipping a product to be repaired clearly write the prod...

Страница 11: ...ing Mini Single Sheet Tester Cable SY 957 16 4 4 Powering on 18 4 5 Powering off 18 4 6 Attaching and detaching a B Coil 19 4 7 Measurable samples 20 4 8 Setting a sample 21 4 9 Confirmation of functi...

Страница 12: ...iction is used for the measuring yoke 3 Highly accurate measurement of single sheet core loss has been achieved by providing the Yoke Compensation 1 function which cancels the measurement yoke s magne...

Страница 13: ...e of temperature and humidity If exposed to direct sunlight or used outside an operating range e g high humidity it may fail Ranges of temperature and humidity for usage are as follows Indoor use only...

Страница 14: ...measurement using the same B magnetic flux density coil Although 2 types of B coils are provided with this instrument it is the best practice for users to wind a B coil by themselves with considerati...

Страница 15: ...ing 6 Conduct a comparative measurement under the same temperature It is a basic practice to conduct a comparative measurement under the same temperature as magnetic properties of some materials such...

Страница 16: ...in the case of SSTs As such Pcv measured without any sample is the detection limit of core loss Pcv of the particular device with the same frequency under the same excitation conditions That means th...

Страница 17: ...yoke Core area Ay Relative permeability y equipped with an excitation coil Number of turns n1 and a B coil Number of turns n3 a signal generator that sends excitation current to each excitation coil...

Страница 18: ...h this instrument magnetic field strength in the measuring yoke Hya which was unmeasurable with conventional MC method based SSTs can be calculated from this 1st measurement and the 2nd and 3rd explai...

Страница 19: ...e double yoke is 9 When the magnetic path length of the double yoke is Lyb the magnetic field strength Hyb in the double yoke can be calculated from Ampere s Law 10 Hyb is the magnetic field strength...

Страница 20: ...2nd measurement this instrument controls the amplitude of the signal generator precisely and adjusts the excitation current i1b sent through the double yoke However the generator cannot be controlled...

Страница 21: ...hed Operation is invalid if the button is pressed while the LED is blinking 5 SET button Pressing this button when the LED is off will cause the slider to move down while the LED blinks and press a sa...

Страница 22: ...ock is made of poly phenylene sulfide PPS resin PPS resin may deform at 160 C or higher 3 Slider Move the press block up and down 4 Guide arms Support long samples from the side Guide arms are made of...

Страница 23: ...ect the output from the power amplifier with the BNC cable 3 Connection terminals for Mini Single Sheet Tester Cable SY 957 Connect to the B H Analyzer with Mini Single Sheet Tester Cable SY 957 1 Pow...

Страница 24: ...the B H Analyzer See sec 4 10 Select the single sheet testing mode Select Sheet in the Mode menu of the B H Analyzer See sec 4 11 Set up a sample on SY 956 See sec 4 8 Measurement See sec 4 15 Warm u...

Страница 25: ...eeds to be connected to the B H Analyzer with which it has been calibrated together Proper measurement cannot be made by connecting to any other B H Analyzers Fig 4 2 Connecting SY 956 B H Analyzer OS...

Страница 26: ...ews so that they do not get lost 4 Install the measuring block for Mini Single Sheet Tester Cable SY 957 First align the terminal block guide with the measuring POD guide See Fig 4 5 4 6 Then slowly p...

Страница 27: ...et Tester Cable SY 957 on the back of the product Fit the 4 BNCs and a multi pin connector together See Fig 4 8 7 Secure the connector by turning the lever to the right See Fig 4 9 Fig 4 8 Connecting...

Страница 28: ...it start up Refer to the B H Analyzer s instruction manual for the operation 5 Warm it up for 30 minutes or more 4 5 Powering off The following is the method to power off this instrument Follow the po...

Страница 29: ...S2 terminals Place the excess wire in the concavity of the press block to prevent interference with the press block and the measuring yoke when the slider moves up and down Do not modify the provided...

Страница 30: ...measurable 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...

Страница 31: ...ue of the Slider Position No P with the conversion formula given in the table When the thickness of a sample is T 0 7 mm and the force with which to press the sample is F 5 7 N Substitute T and F into...

Страница 32: ...to display the Mode menu 2 Move the editing cursor to Sheet press and confirm selection of the single sheet mode See Fig 4 16 3 The single sheet testing mode screen is displayed See Fig 4 18 4 11 Conf...

Страница 33: ...Shows whether the currently displayed graph is Current current measurement or Reference stored measurement 5 Cursor Values Shows the cursor value when the cursor is displayed Unit is same as the grap...

Страница 34: ...ules Description Sample Name Up to 20 characters Le Effective magnetic path length System 2 Device specific eigenvalue Device specific size inside the poles of the measuring yoke Unit is fixed to mm U...

Страница 35: ...Hz Set the frequency of an excitation signal Fixed Parameter Target parameter Bm Max magnetic flux density 0 001 to 99999 Set a target parameter value for measurement Hm Max magnetic field I1m Max exc...

Страница 36: ...orner of the B H graph screen the top left corner on the time axis graph to show that the third measurement is taking place See Fig 4 20 4 When the 3rd measurement has been completed successfully the...

Страница 37: ...27 Fig 4 19 1st Measurement Screen Fig 4 20 3rd Measurement Screen...

Страница 38: ...ase refer to the B H Analyzer s instruction manual for the operation 4 20 USB memory output of screen hardcopy Similar to the normally installed testing modes output of a measuring screen hardcopy to...

Страница 39: ...per or the like This would cause an increase in core loss of the yoke leading to incorrect measurement 2 Lightly wipe the measuring yoke except its pole faces with a soft cloth moistened with a small...

Страница 40: ...e Comp Enabled 4 0 15 deg Typical f 10 kHz 200 mA and 200 mV range or more at the amplitude of 80 or more of the range in use Core loss Yoke Comp Disabled 3 5 6 Typical Estimated value at phase angle...

Страница 41: ...31 6 2 Outside appearance diagram Unit mm...

Страница 42: ...32 6 3 Outside appearance of the fixture Unit mm...

Страница 43: ...Address 7 41 Kugayama 1 chome Suginami ku Tokyo 168 8511 Japan Phone 81 3 5370 5483 Facsimile 81 3 5370 5492 Homepage http www iti iwatsu co jp...

Страница 44: ...SY 956...

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