Magnetic Instrumentation 2130 Instruction Manual Download Page 1

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8431 Castlewood Drive, Indianapolis, IN 46250 USA

(317) 842-7500

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Fax (317) 849-7600

E-Mail: [email protected]

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www.maginst.com

Fluxmeter

Model 2130

Instruction Manual

Revision 3, 18-March-2013

Starting with Serial Number 41554

Summary of Contents for 2130

Page 1: ...ewood Drive Indianapolis IN 46250 USA 317 842 7500 Fax 317 849 7600 E Mail maginst maginst com www maginst com Fluxmeter Model 2130 Instruction Manual Revision 3 18 March 2013 Starting with Serial Num...

Page 2: ......

Page 3: ...user such as high voltage etc Please pay especially close attention to these messages The CAUTION Message indicates that a condition exists that may cause damage to the Model 2130 The display symbol...

Page 4: ...9 SETTING THE HELMHOLTZ CONSTANT FOR USE WITH HELMHOLTZ COILS 3 9 3 10 SETTING THE MAGNET VOLUME 3 10 3 11 VIEWING THE CALIBRATION COEFFICIENT 3 11 3 12 SETTING THE LOWER LIMIT 3 12 3 13 SETTING THE U...

Page 5: ...Coil Parameters 4 9 4 13 3 Sample Volume 4 9 4 13 4 Instrument Specifications 4 9 4 13 5 Interference of coil signal with zero self test mode 4 9 5 THEORY OF OPERATION 5 1 5 1 MEASUREMENT OF FLUX 5 1...

Page 6: ...L ITEMS 1 3 TABLE 1 4 1 MODEL 2130 DISPLAY ITEMS 1 4 TABLE 1 5 1 ACCURACY SPECIFICATIONS 1 5 TABLE 1 5 2 I O SPECIFICATIONS 1 5 TABLE 1 5 3 GENERAL SPECIFICATIONS 1 6 TABLE 2 2 1 DEFAULT CONFIGURATION...

Page 7: ...ea and resistance can be read from or written to the M2130 or manually entered using the menu system 1 1 2 Key Features High Accuracy Low Drift with Automatic Drift Correction Measurement Ranges Singl...

Page 8: ...ons and parameters 4 MAX HOLD Key Switches between NORMAL and MAX HOLD modes of operation 5 ZERO Key Allows the user to zero and calibrate the Model 2130 s integrator 6 MODE Key Switches between the N...

Page 9: ...or Helmholtz coil to the Model 2130 5 RANGE SWITCH Coarse range selection fine range selection is made via the front panel RANGE key 6 J6 AUXILIARY CONNECTOR Allows access to the analog output limits...

Page 10: ...ed currently selected When no dots appear before the drift correction speed the reading is approximately within 0 5 of the displayed range and the the meter is continuosly performing drift correction...

Page 11: ...tions 1 5 2 I O Specifications Interface Specification Serial RS 232C 9600 baud rate 8 data bits no parity 1 stop bit no handshaking DB 9 female connector GPIB optional Complies with IEEE 488 1978 Ana...

Page 12: ...Size 12 6 x 6 9 x 2 9 L x W x H Weight 7 5 lbs Power 115 or 220 VAC 50 60 Hz Fuse 0 25A 250V type 3AG Table 1 5 3 General Specifications 1 5 4 Radiated RF Immunity When operated in a field of 3 0V M...

Page 13: ...ety ground is connected to earth ground If these precautions are not followed electrical shock could result c Wet Environment Do not operate this equipment in standing water or damp areas Failure to f...

Page 14: ...pect all accessories for damage Please report any damaged items to Magnetic Instrumentation Inc immediately 2 2 Model 2130 Functional Check Before attempting to apply power to the Model 2130 ensure th...

Page 15: ...uration settings which are now enabled Menu Number Parameter Default Value 1 Display Period 300 ms 2 Units Maxwell Turns 3 Coil Parameter Coil Resistance 0 0 Ohms 3 Coil Parameter Coil Area 1 0 cm2 3...

Page 16: ...m or a sub menu item causes the menu system to move down one level Once the menu system is at the parameter level pressing the ENTER key stores any selected or modified parameter to the meter s config...

Page 17: ...ter Coil Turns Coil Parameter Helmholtz Const Dual Limits Upper Limit Dual Limits Lower Limit 100 ms to 2500 ms MT M G T Bdi G Bdi T 2500 ms 00000 00 Ohms to 99999 99 Ohms 00000 0000 cm2 to 99999 9999...

Page 18: ...This parameter is only used when the Bdi Gauss or Bdi Tesla measurement units are selected 5 Calibration Allows the user to view the calibration correction coefficient for the Model 2130 s integrator...

Page 19: ...panel ENTER key to enter the menu parameter level d Press the front panel UP RESET key or DOWN DRIFT key to change the parameter to the desired display period In this example the Display Period has be...

Page 20: ...he front panel ENTER key to enter the menu parameter level d Press the front panel UP RESET key or DOWN DRIFT key to change the parameter to the desired measurement units In this example the measureme...

Page 21: ...he front panel ENTER key to enter the menu parameter level f Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key to incre...

Page 22: ...Press the front panel ENTER key to enter the menu parameter level f Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key t...

Page 23: ...ress the front panel ENTER key to enter the menu parameter level f Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key to...

Page 24: ...T key or DOWN DRIFT key to select the Helmholtz Const sub menu item f Press the front panel ENTER key to enter the menu parameter level g Press the front panel DOWN DRIFT key to move the display curso...

Page 25: ...ameter level d Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key to increment the digit to the desired value In this ex...

Page 26: ...he Calibration menu item c Press the front panel ENTER key to enter the menu parameter level The display will show the calibration coefficient from the last calibration performed This parameter can no...

Page 27: ...Press the front panel ENTER key to enter the menu parameter level f Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key...

Page 28: ...Press the front panel ENTER key to enter the menu parameter level f Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key...

Page 29: ...nu parameter level d Press the front panel DOWN DRIFT key to move the display cursor under the digit to be modified then press front panel UP RESET key to increment the digit to the desired value In t...

Page 30: ...l ENTER key to enter the menu parameter level d Press the front panel UP RESET key or the DOWN DRIFT key to enable or disable the particular drift rate This selection applies to what drift rate s are...

Page 31: ...t to the Default menu item c Press the front panel ENTER key to enter the menu parameter level d Press the front panel UP RESET key or the DOWN DRIFT key to set the parameter to This set or All sets e...

Page 32: ...c Press the front panel ENTER key to enter the menu parameter level d Press the front panel UP RESET key or the DOWN DRIFT key to set the address to the desired value In this example the GPIB address...

Page 33: ...o the DC AC menu item c Press the front panel ENTER key to enter the menu parameter level d Press the front panel UP RESET key or the DOWN DRIFT key to obtain the desired function In this example the...

Page 34: ...meter level j Press the front panel UP RESET key or the DOWN DRIFT key to obtain the desired selection If No is selected only the RESET DRIFT and ZERO buttons will be active k Press the front panel EN...

Page 35: ...the Setup menu item c Press the front panel ENTER key to enter the menu parameter level d Press the front panel UP RESET key or the DOWN DRIFT key to select the desired setup number In this example t...

Page 36: ...any combination of the above in nature These magnetic flux types can be likened to DC AC or Peak voltage respectively Just as a voltmeter must be configured to measure DC AC or Peak voltage the Model...

Page 37: ...e of either an alternating or pulsed magnetic field or flux The peak detection scheme used by the Model 2130 allows the fluxmeter to capture either the maximum positive or negative excursion of the me...

Page 38: ...er to select from twelve measurement ranges Each of these ranges is selected by using a combination of the rear panel range switch coarse range select and the front panel range key fine range select T...

Page 39: ...il of wire as a sensor However the user should consider several parameters when deciding on the search coil for a particular application 4 6 1 Number of Turns The output voltage from a search coil for...

Page 40: ...ws the measurement of the Bdi intrinsic remanant induction of a magnet sample in an open circuit condition The Helmholtz coil arrangement is also fairly independent of the position of the sample withi...

Page 41: ...om fashion In modern microprocessor controlled fluxmeters like the Model 2130 the drift compensation adjustment is made under the control of the meter software Instead of a user adjustable potentiomet...

Page 42: ...the Model 2130 s integrator Thus if the input signal is a sinusoid the output will also be sinusoidal with a 90o phase shift However if the input signal is a square wave the output will be a triangle...

Page 43: ...ector Pin Assignments for Remote Reset pin designation 4 13 Sources of Error When using a fluxmeter such as the Model 2130 several sources of error should be considered 4 13 1 Coil Orientation Search...

Page 44: ...and the total area of the coil or 2 the actual number of turns on the coil being used and the average area of the coil Entering the total area and the actual number of turns will result in an incorrec...

Page 45: ...flux and inversely proportional to the period in which the flux change occurs In most cases of flux measurement the desired measurement is the flux quantity independent of the rate of change This is...

Page 46: ...fluxmeters the Model 2130 included accomplish this function with a Miller integrator The following figure is a simplified representation of the Model 2130 s integrator Figure 5 3 1 Miller Integrator S...

Page 47: ...to the integrator output voltage eo This gives the transfer function for the integrator 10 e e R C t o i i f The integrator output voltage is therefore directly proportional to the time integral of t...

Page 48: ...2 1 RS 232 Settings 6 2 2 IEEE 488 Settings The IEEE 488 GPIB address may be set by the user and can range from 1 to 16 The user application must read at least 36 characters to assure that the entire...

Page 49: ...nt panel key presses or by sending numeric characters corresponding to the menu option or parameter Example Suppose the menu system is active and is set to the top menu item 1 Display Rate If the user...

Page 50: ...r B Parameter none Returns display text Description Returns the display text present on the Model 2130 LCD display Example When the DISPLAY QUERY command is sent the Model 2130 will return a string of...

Page 51: ...ter none Returns none Description Simulates the front panel ENTER key GAIN QUERY Character G Parameter none Returns gain Description Returns the current gain setting of the Model 2130 Value can be 1 2...

Page 52: ...table Example Sending the command h01 will set the Model 2130 in Max Hold mode Mode Mode number Normal 00 Max Hold 01 through 99 Table 6 4 2 Mode Numbers MENU QUERY Character A Parameter none Returns...

Page 53: ...Y command while the Model 2130 is set to the Normal mode will return the following string NORM CR LF RANGE Character N Parameter none Returns none Description Simulates the front panel RANGE key RANGE...

Page 54: ...T Up arrow Character R Parameter none Returns none Description Simulates the front panel RESET Up arrow key RESULT QUERY Character I Parameter none Returns result Description Returns a string of chara...

Page 55: ...h time power is supplied to the Model 2130 while other messages will only appear in the event of an error Refer to Table 7 2 1 to identify possible problems and corrective action If the Model 2130 doe...

Page 56: ...from an AC source check to be certain the correct line voltage is being used If this message persists the unit should be returned to Magnetic Instrumentation Inc for repair ERROR Flash Mem Indicates a...

Page 57: ...8 NDAC Not Data Accepted 9 IFC Interface Clear 10 SRQ Service Request 11 ATN Attention 12 SHIELD Cable Shield 13 DIO 5 Data Input Output 5 14 DIO 6 Data Input Output 6 15 DIO 7 Data Input Output 7 16...

Page 58: ...IN NAME DESCRIPTION 1 pins 1 4 and 6 internally shorted 2 TXD Transmit Data 3 RXD Receive Data 4 pins 1 4 and 6 internally shorted 5 GND Ground 6 pins 1 4 and 6 internally shorted 7 pins 7 and 8 inter...

Page 59: ...3 LL Limits Low Output active low 4 GRD Common 5 LP Limits Pass Output active low 6 RS Remote Not Reset active low 7 Not Connected 8 Vdd Probe Memory 5V 9 Batt 9V Battery Connection 10 Batt 9V Batter...

Page 60: ...Magnetic pole strength p Weber W 108 4 e m u Magnemotive force F Ampere A Gilbert Gb Mass kilogram kg 103 gram g 7 Permeability absolute u Henry meter H m 107 4 Unitless 8 Permeability relative u 1 9...

Page 61: ...equirements of CENELEC document EN50082 1 Part 1 Residential Commercial Light Industry sections covered Environmental Phenomena RF Electromagnetic Field Electrodischarge Air Fast Transient and Electro...

Page 62: ...ess 3 17 helmholtz constant 3 9 lower limit 3 12 magnet volume 3 10 relative offset 3 14 units 3 5 upper limit 3 13 view angle 3 15 Connector auxilliary 8 3 Auxilliary 1 3 GPIB 1 3 8 1 Power 1 3 Probe...

Page 63: ...SET Key 1 2 resistance 3 3 RMS AC Function 4 2 RS 232 1 1 S Safety Precautions 1 7 Search Coil selecting 4 4 theory 5 1 SET Key 1 2 Sources of Error 4 8 Specifications accuracy 1 5 Dual Limit Outputs...

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