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4.14 Setting measurement conditions 

 

●  Set the measurement conditions. 

 

(1)  While referring to Table 4-5, move the editing cursor to the Edit Box of the measurement condition to be 

entered in Excited Conditions and press 

  to confirm the selection. 

 

(2)  For  those  with  a  Popup  List  that  opens,  move  the  editing  cursor  to  a  suitable  item  and  press 

  to 

confirm the settings. 

 

(3)  When the Popup Edit Box opens, use the ten keys to enter numeric characters directly and press 

  , 

or move the editing cursor to the numeric character to be  changed and press 

  , or turn 

  to 

change the number. Press 

  to confirm the settings. 

 

Table 4-5 Measurement Conditions 

 

Items 

Selectable items/Input rules 

Descriptions 

Function

 

Sine 

Only the sine wave is used for the single sheet testing mode. 

Calc.

 

Normal

 

Selects a calculation mode. 

μ

 

Frequency

 

10 Hz to 20 kHz 

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. excitation   

current) 

V2m (Max. induced 

voltage) 

Tolerance

 

0.1 to 100% 

When Yoke 
Comp. is 
Disabled 

Finish  the  testing  when  the  measured  value  of 
the target parameter reaches within 

[%] of this 

set value. Set the tolerance 

X

When Yoke 
Comp. is 
Enabled 
 

Proceed  from  the  1st  measurement  to  the  2nd 
measurement  when  the  measured  value  of  the 
target parameter reaches within 

[%] of this set 

value. The 3rd measurement is completed when 
Bm of the 3rd measurement reaches the Bm of 
the  2nd  measurement  and  falls  within 

[%]  of 

this set value. 
 

*

  Therefore,  the  target  parameter  of  the  1st 

measurement will be within the set Tolerance 
range, but when testing continues until the 3rd 
measurement, 

the target parameter may not 

fall  within  the  Tolerance

,  due  to  the  Yoke 

Comp. function. 

Yoke Comp. 

Disabled 

Disables Yoke Comp. 

Enabled 

Enables Yoke Comp. 

 

 

 

Summary of Contents for SY-956

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

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

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

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

Page 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...

Page 44: ...SY 956...

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