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F.W. Bell 5060, Instruction Manual

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F.W. Bell 5060 Instruction Manual Download Page 36

OPERATING INSTRUCTIONS

 

 

3-19

 

 

 

 

Figure 3-14 

Probe Output versus Flux Angle 

 
 

 

The probe is calibrated and specified with flux lines passing 

perpendicularly through the Hall generator. 

 
5) As shown in Figure 3-15 the greater the distance between the 
magnetic source and the Hall probe the fewer flux lines will pass 
through the probe, causing the probe’s output to decrease. 
 

 

 

Figure 3-15 

Probe Output versus Distance 

 

6) Flux density can vary considerably across the pole face of a 
permanent magnet.  This can be caused by internal physical flaws  

Summary of Contents for 5060

Page 1: ...Model 5060 GAUSS TESLA METER Instruction Manual Manual UN 01 229 Rev E ECO 13097 Item No 359924 Sypris Test Measurement All rights reserved ...

Page 2: ... on the instrument and probe It refers the operator to additional information contained in this instruction manual also identified by the same symbol NOTICE See Pages 3 1 and 3 2 for SAFETY instructions prior to first use ...

Page 3: ......

Page 4: ...l Probe 2 4 Optional Probe Extension Cable 2 5 Zero Flux Chamber 2 6 SECTION 3 OPERATING INSTRUCTIONS Operator Safety 3 1 Operating Features 3 3 Instrument Preparation 3 5 Power Up 3 7 Power Up Settings 3 8 Low Battery Condition 3 9 Overrange Condition 3 10 UNITS of Measure Selection 3 11 RANGE Selection 3 12 ZERO Function 3 13 Automatic ZERO Function 3 14 Manual ZERO Function 3 16 Sources of Meas...

Page 5: ...obe Electrical Warning 3 2 Figure 3 3 Operating Features 3 3 Figure 3 4 Battery Installation 3 5 Figure 3 5 Probe Connection 3 6 Figure 3 6 Power Up Display 3 7 Figure 3 7 Missing Probe Indication 3 8 Figure 3 8 Low Battery Indication 3 9 Figure 3 9 Overrange Indication 3 10 Figure 3 10 UNITS Function 3 11 Figure 3 11 RANGE Function 3 12 Figure 3 12 Automatic ZERO Function 3 15 Figure 3 13 Manual ...

Page 6: ... source Thus all magnetic sources are said to have two poles Flux lines are said to emanate from the north pole and return to the south pole as depicted in Figure 1 1 Figure 1 1 Flux Lines of a Permanent Magnet One line of flux in the CGS measurement system is called a maxwell M but the weber W which is 108 lines is more commonly used Flux density also called magnetic induction is the number of fl...

Page 7: ...ol H in scientific documents It is important to know that magnetic field strength and magnetic flux density are not the same Magnetic field strength deals with the physical characteristics of magnetic materials whereas flux density does not MEASUREMENT OF FLUX DENSITY A device commonly used to measure flux density is the Hall generator A Hall generator is a thin slice of a semiconductor material t...

Page 8: ...the same number of flux lines pass through the material in either direction the net result is zero volts The Hall voltage is also a function of the angle at which the flux lines pass through the material The greatest Hall voltage occurs when the flux lines pass perpendicularly through the material Otherwise the output is related to the cosine of the difference between 90 and the actual angle The s...

Page 9: ...e measurements between two magnetic poles such as those in audio speakers electric motors and imaging machines Axial probes are often used to measure the magnetic field along the axis of a coil solenoid or traveling wave tube Either probe can be used where there are few physical space limitations such as in geomagnetic or electromagnetic interference surveys Handle the Hall probe with care Do not ...

Page 10: ...otch in the bail allows the meter to be wall mounted when bench space is at a premium The large display is visible at considerable distances The instrument is easily configured using a single rotary selector and two pushbuttons Two measurement ranges can be selected A zero function allows the user to remove undesirable readings from nearby magnetic fields including earth s or false readings caused...

Page 11: ... electric motor armatures and stators transformer lamination stacks cut toroidal cores coils and solenoids Determining the location of stray fields around medical diagnostic equipment Determining sources of electromagnetic interference Locating flaws in welded joints Inspection of ferrous materials 3 dimensional field mapping Inspection of magnetic recording heads ...

Page 12: ...ITH TEMPERATURE not including probe 0 02 ºC typical WARMUP TIME TO RATED ACCURACY 15 minutes OPERATING TEMPERATURE 0 to 50ºC 32 to 122ºF STORAGE TEMPERATURE 25 to 70ºC 13 to 158ºF BATTERY TYPE 9 Vdc alkaline NEDA 1640A BATTERY LIFE 8 hours typical two batteries AUXILIARY POWER 9 Vdc 300 mA AUXILIARY POWER CONNECTOR Standard 2 5 mm I D 5 5 mm O D connector Center post is positive polarity ...

Page 13: ...Compliance was demonstrated to the following specifications as listed in the official Journal of the European Communities EN 50082 1 1992 Generic Immunity IEC 801 2 1991 Electrostatic Discharge Second Edition Immunity IEC 1000 4 2 1995 ENV 50140 1993 Radiated Electromagnetic IEC 1000 4 3 1995 Field Immunity EN 50081 1 1992 Generic Emissions EN 55011 1991 Radiated and Conducted Emissions ...

Page 14: ...0 to 2 T 0 to 20 kG FREQUENCY BANDWIDTH dc only OFFSET CHANGE WITH TEMPERATURE 30 µT 300 mG ºC typical ACCURACY CHANGE WITH TEMPERATURE 0 05 ºC typical OPERATING TEMPERATURE RANGE 0 to 75 ºC 32 to 167ºF STORAGE TEMPERATURE RANGE 25 to 75 ºC 13 to 167ºF Figure 2 1 Standard Transverse Probe ...

Page 15: ...0 to 2 T 0 to 20 kG OFFSET CHANGE WITH TEMPERATURE 30 µT 300 mG ºC typical ACCURACY CHANGE WITH TEMPERATURE 0 05 ºC typical FREQUENCY BANDWIDTH dc only OPERATING TEMPERATURE RANGE 0 to 75 ºC 32 to 167ºF STORAGE TEMPERATURE RANGE 25 to 75 ºC 13 to 167ºF Figure 2 2 Standard Axial Probe ...

Page 16: ...CATIONS 2 5 OPTIONAL PROBE EXTENSION CABLE MODEL NUMBER X5000 0006 OPERATING TEMPERATURE RANGE 0 to 75 ºC 32 to 167ºF STORAGE TEMPERATURE RANGE 25 to 75 ºC 13 to 167ºF Figure 2 3 Optional Probe Extension Cable ...

Page 17: ...CHAMBER MODEL NUMBER YA 111 CAVITY DIMENSIONS Length 50 8 mm 2 Diameter 8 7 mm 0 343 ATTENUATION 80 dB to 30 mT 300 G PURPOSE To shield the probe from external magnetic fields during the ZERO operation Figure 2 4 Zero Flux Chamber ...

Page 18: ...not connect the auxiliary power connector to an ac power source Do not exceed 15 Vdc regulated or 9 Vdc unregulated Do not reverse polarity Use only a regulated ac to dc power supply certified for country of use Figure 3 1 Auxiliary Power Connector Warnings ...

Page 19: ...arning Batteries contain ferrous materials that are attracted to magnetic fields Be careful when operating the instrument near large magnetic fields as it may move without warning Extension cables are available to increase the probe cable length so that the instrument can remain in a safe position with respect to the field being measured with the probe ...

Page 20: ...his control allows the operator to change the meter s range and units of measure It also engages the ZERO and MEASURE modes of operation 4 Battery Compartment Cover This cover slides open to allow one or two 9 volt batteries to be installed 5 Power Switch Push on push off type switch to apply power to the meter 6 SELECT Switch Momentary pushbutton used in conjunction with the Function Selector 3 t...

Page 21: ...are disconnected when using this connector Do not connect the auxiliary power connector to an ac power source Do not exceed 15 Vdc regulated or 9 Vdc unregulated Do not reverse polarity Use only a regulated ac to dc power supply certified for country of use 9 Probe Connector The Hall probe or probe extension cable plugs into this connector and locks in place To disconnect pull on the body of the p...

Page 22: ... battery compartment cover at the two points shown in Figure 3 4 Slide the cover open and remove 2 Install one or two 9 volt alkaline batteries two batteries will provide longer operating life The battery compartment is designed so that the battery polarity cannot be reversed Reinstall the battery compartment cover Figure 3 4 Battery Installation ...

Page 23: ...ge and current ratings When using a power supply the batteries are automatically disconnected 4 Install the probe or probe extension cable by matching the key way in the connector to that in the mating socket in the meter The connector will lock in place To disconnect pull on the body of the plug not the cable Figure 3 5 Probe Connection ...

Page 24: ... code will appear after each failure This process will continue indefinitely or until the circuitry passes the test A condition in which a circuit fails and then passes should not be ignored because it indicates an intermittent problem that should be corrected If the self test is successful the meter will perform a self calibration During this phase the meter will display the software revision num...

Page 25: ...EASURE position flux density measurements will begin Allow adequate time for the meter and probe to reach a stable temperature See the SPECIFICATIONS section for specific information POWER UP SETTINGS The meter permanently saves certain aspects of the instrument s setup and restores them the next time the meter is turned on The conditions that are saved are RANGE setting UNITS of measure gauss or ...

Page 26: ...ll be restored to the 200 mT range because the FUNCTION selector was never returned to the MEASURE mode prior to turning it off LOW BATTERY CONDITION The meter is designed to use one or two standard 9V alkaline batteries two batteries will provide longer operating life When the battery voltage becomes too low the battery symbol on the display will flash as shown in Figure 3 8 Replace the batteries...

Page 27: ...ic flux density exceeds the limit of the selected range the meter will display a flashing value of 1999 The next highest range should be selected If already on the highest range then the flux density is too great to be measured with this instrument Figure 3 9 Overrange Indication ...

Page 28: ...ensity measurements in terms of gauss G or tesla T To choose the desired units rotate the function selector to the UNITS position Press the SELECT pushbutton to select G or T on the display This setting is saved and will be restored the next time the meter is turned on Figure 3 10 UNITS Function ...

Page 29: ...s advance in decade steps The lowest range offers the best resolution while the highest range allows higher flux levels to be measured To choose the desired range rotate the function selector to the RANGE position The RANGE legend will flash Press the SELECT pushbutton to select the desired range on the display This setting is saved and will be restored the next time the meter is turned on Figure ...

Page 30: ...m electric motors permanent magnets and the earth roughly 0 5 gauss or 50 µT can induce errors in the final reading It is vital to remove these sources of error prior to making actual measurements The process of zeroing removes all of these errors in one operation The meter cancels the combined dc error signal by introducing another signal of equal magnitude with opposite polarity After zeroing th...

Page 31: ...field must not exceed 30 mT 300 G 2 The field must be stable during the zeroing process It should not contain alternating ac components AUTOMATIC ZERO FUNCTION The meter provides two methods to zero the probe The first is completely automatic Prepare the probe for zeroing then rotate the function selector to the ZERO position The ZERO legend will flash and actual dc flux density readings will appe...

Page 32: ...ime all controls are disabled except for the POWER switch The process normally takes from 5 to 15 seconds The meter selects the lowest range and adjusts the nulling signal until the net result reaches zero If the existing field is too large or unstable the meter will sound a double beep and the phrase OVER will appear momentarily on the display At this point the automatic process is terminated and...

Page 33: ...rocess can be repeated or a manual adjustment can be performed see Manual Zero Function The final zero values will remain in effect until the meter and probe are zeroed again if the probe is disconnected or if the meter is turned off and back on again MANUAL ZERO FUNCTION The second zeroing method is a manual adjustment This feature also allows the user to set the zero point to something other tha...

Page 34: ...ng it slowly results in a fine adjustment turning it quickly results in a coarse adjustment NOTE Making a manual ZERO adjustment not only affects the lowest range but also the highest range though to a lesser extent For example assume an automatic ZERO has already been performed after which both ranges should read zero Now a manual adjustment is made that causes the reading on the lowest range to ...

Page 35: ... probe and nearby sources of magnetic interference 3 Subjecting the probe to physical abuse Handle the Hall probe with care Do not bend the stem or apply pressure to the probe tip as damage may result Use the protective cover when the probe is not in use 4 One of the most common sources of error is the angular position of the probe with respect to the field being measured As mentioned in Section 1...

Page 36: ...ll generator 5 As shown in Figure 3 15 the greater the distance between the magnetic source and the Hall probe the fewer flux lines will pass through the probe causing the probe s output to decrease Figure 3 15 Probe Output versus Distance 6 Flux density can vary considerably across the pole face of a permanent magnet This can be caused by internal physical flaws ...

Page 37: ...nsity Variations in a Magnet 7 Using more than one extension cable can result in measurement errors In some cases the meter may report an error Total cable length between the meter and the probe connector should not exceed 2 1 m 7 ft The use of more than one extension cable can result in measurement errors and increase susceptibility to radio frequency interference RFI 8 The accuracies of the prob...

Page 38: ...S AND LIABILITIES ON THE PART OF SYPRIS TEST MEASUREMENT AND NO PERSON INCLUDING ANY DISTRIBUTOR AGENT OR REPRESENTATIVE OF SYPRIS TEST MEASUREMENT IS AUTHORIZED TO ASSUME FOR SYPRIS TEST MEASUREMENT ANY LIABILITY ON ITS BEHALF OR ITS NAME EXCEPT TO REFER THE PURCHASER TO THIS WARRANTY THE ABOVE EXPRESS WARRANTY IS THE ONLY WARRANTY MADE BY SYPRIS TEST MEASUREMENT SYPRIS TEST MEASUREMENT DOES NOT ...

Page 39: ...THIS SHEET BLANK Back of Warranty ...

Page 40: ...THIS SHEET BLANK ...

Page 41: ...THIS SHEET BLANK ...

Page 42: ...THIS SIDE BLANK Inside of back cover ...

Page 43: ...6120 Hanging Moss Road Orlando Fl 32807 Phone 407 678 6900 Fax 407 677 5765 ...

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