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Summary of Contents for F.W. Bell 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 This symbol appears 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 !
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Page 4: Table Of Contents
Table of Contents SECTION-1 INTRODUCTION Understanding Flux Density..........Measurement of Flux Density..........Product Description............Applications............... SECTION-2 SPECIFICATIONS Instrument................. Standard Transverse Probe..........Standard Axial Probe............Optional Probe Extension Cable........Zero Flux Chamber............SECTION-3 OPERATING INSTRUCTIONS Operator Safety..............Operating Features............Instrument Preparation............Power-Up................ - Page 5 List of Illustrations Figure 1-1 Flux Lines of a Permanent Magnet.... Figure 1-2 Hall Generator..........Figure 1-3 Hall Probe Configurations......Figure 2-1 Standard Transverse Probe....... Figure 2-2 Standard Axial Probe......... Figure 2-3 Optional Probe Extension Cable....Figure 2-4 Zero Flux Chamber........Figure 3-1 Auxiliary Power Connector Warnings..
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Page 6: Section-1 Introduction
Section 1 Introduction UNDERSTANDING FLUX DENSITY Magnetic fields surrounding permanent magnets or electrical conductors can be visualized as a collection of magnetic flux lines; lines of force existing in the material that is being subjected to a magnetizing influence. Unlike light, which travels away from its source indefinitely, magnetic flux lines must eventually return to the source. -
Page 7: Measurement Of Flux Density
INTRODUCTION commonly used term is the tesla (T), which is 10,000 lines per cm . Thus 1 tesla = 10,000 gauss 1 gauss = 0.0001 tesla Magnetic field strength is a measure of force produced by an electric current or a permanent magnet. It is the ability to induce a magnetic field “B”. - Page 8 INTRODUCTION A constant current (Ic) is forced through the material. In a zero magnetic field there is no voltage difference between the other two edges. When flux lines pass through the material the path of the current bends closer to one edge, creating a voltage difference known as the Hall voltage (Vh).
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Page 9: Figure 1-3 Hall Probe Configurations
INTRODUCTION Figure 1-3 Hall Probe Configurations In “transverse” probes the Hall generator is mounted in a thin, flat stem whereas in “axial” probes the Hall generator is mounted in a cylindrical stem. The axis of sensitivity is the primary difference, as shown by “B”... -
Page 10: Product Description
The measurement range is from 0.1 mT (1 G) to 1.999T (19.99 kG). The MODEL 5060 consists of a palm-sized meter and various detachable Hall probes. The meter operates on standard 9 volt alkaline batteries or can be operated with an external ac-to-dc power supply. -
Page 11: Applications
INTRODUCTION APPLICATIONS • Sorting or performing incoming inspection on permanent magnets, particularly multi-pole magnets. • Testing audio speaker magnet assemblies, electric motor armatures and stators, transformer lamination stacks, cut toroidal cores, coils and solenoids. • Determining the location of stray fields around medical diagnostic equipment. -
Page 12: Section-2 Specifications
Section 2 Specifications INSTRUMENT RANGE RESOLUTION GAUSS TESLA GAUSS TESLA 2 kG 200 mT 0.1 mT 20 kG 10 G 1 mT ± 4 % of reading, ± 3 ACCURACY (including probe): counts ACCURACY CHANGE WITH TEMPERATURE ± 0.02 % / ºC typical (not including probe): WARMUP TIME TO RATED ACCURACY:... - Page 13 SPECIFICATIONS METER DIMENSIONS: Length: 13.2 cm (5.2 in) Width: 13.5 cm (5.3 in) Height: 3.8 cm (1.5 in) WEIGHT: Meter w/batteries: 400 g (14 oz.) Shipping: 1.59 kg (3 lb., 8 oz.) REGULATORY INFORMATION: Compliance was demonstrated to the following specifications as listed in the official Journal of the European Communities: EN 50082-1:1992 Generic Immunity...
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Page 14: Standard Transverse Probe
SPECIFICATIONS STANDARD TRANSVERSE PROBE MODEL NUMBER: HTV56-0602 0 to ± 2 T (0 to ± 20 kG) FLUX DENSITY RANGE: FREQUENCY BANDWIDTH: dc only OFFSET CHANGE WITH ± 30 µT (300 mG) / ºC typical TEMPERATURE: 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) -
Page 15: Standard Axial Probe
SPECIFICATIONS STANDARD AXIAL PROBE MODEL NUMBER: SAV56-1904 0 to ± 2 T (0 to ± 20 kG) FLUX DENSITY RANGE: OFFSET CHANGE WITH ± 30 µT (300 mG) / ºC typical TEMPERATURE: ACCURACY CHANGE WITH TEMPERATURE: - 0.05% / ºC typical FREQUENCY BANDWIDTH: dc only OPERATING TEMPERATURE RANGE: 0 to +75 ºC (+32 to +167ºF) -
Page 16: Optional Probe Extension Cable
SPECIFICATIONS 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: Zero Flux Chamber
SPECIFICATIONS ZERO FLUX 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: Section-3 Operating Instructions
Section 3 Operating Instructions OPERATOR SAFETY 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. Figure 3-1 Auxiliary Power Connector Warnings... -
Page 19: Figure 3-2 Probe Electrical Warning
OPERATING INSTRUCTIONS Do not allow the probe to come in contact with any voltage source greater than 30 Vrms or 60 Vdc. Figure 3-2 Probe Electrical Warning 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. -
Page 20: Operating Features
OPERATING INSTRUCTIONS OPERATING FEATURES Figure 3-3 Operating Features Display. Liquid crystal display (LCD). Manual ZERO Control. In the ZERO mode of operation the user can manually adjust the zero point using this control. Function Selector. This control allows the operator to change the meter’s range and units of measure. - Page 21 OPERATING INSTRUCTIONS AUTO Switch. Momentary pushbutton used to start an automatic ZERO operation when in the ZERO mode. Auxiliary Power Connector. This is an industry standard 2.5 mm I.D. / 5.5 mm O.D. dc power connector. The meter will accept a regulated dc voltage in the range of 6 - 15 Vdc at 300 mA minimum current or unregulated 9 Vdc.
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Page 22: Instrument Preparation
OPERATING INSTRUCTIONS INSTRUMENT PREPARATION 1) With the power switch turned off (POWER pushbutton in the full up position) apply pressure to the 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). -
Page 23: Figure 3-5 Probe Connection
OPERATING INSTRUCTIONS 3) If using an ac-to-dc power supply review Figure 3-1 for safety notes and the SPECIFICATIONS section for voltage 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. -
Page 24: Power-Up
OPERATING INSTRUCTIONS POWER-UP Depress the POWER switch. There will be a momentary audible beep and all display segments will appear on the display. Figure 3-6 Power-Up Display The instrument will conduct a self test before measurements begin. If a problem is detected the phrase “Err” will appear on the display followed by a 3-digit code. -
Page 25: Power-Up Settings
OPERATING INSTRUCTIONS Figure 3-7 Missing Probe Indication After power-up the position of the FUNCTION selector switch will determine what happens next. For instance if the selector is in the RANGE position the meter will wait for the user to change the present range. -
Page 26: Low Battery Condition
OPERATING INSTRUCTIONS NOTE: The present setup of the instrument is saved only when the FUNCTION selector is returned to the MEASURE position. For example assume the meter is in the MEASURE mode on the 200 mT range. The FUNCTION selector is now turned to the RANGE position and the 2 T range is selected. -
Page 27: Overrange Condition
OPERATING INSTRUCTIONS OVERRANGE CONDITION If the magnitude of the magnetic 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. -
Page 28: Units Of Measure Selection
OPERATING INSTRUCTIONS UNITS OF MEASURE SELECTION The meter is capable of providing flux density 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. -
Page 29: Range Selection
OPERATING INSTRUCTIONS RANGE SELECTION The meter is capable of providing flux density measurements on one of two fixed ranges. The available ranges are listed in the SPECIFICATIONS section of this manual. The ranges advance in decade steps. The lowest range offers the best resolution while the highest range allows higher flux levels to be measured. -
Page 30: Zero Function
OPERATING INSTRUCTIONS ZERO FUNCTION “Zeroing” the probe and meter is one of the most important steps to obtaining accurate dc flux density measurements. The ideal Hall generator produces zero output in the absence of a magnetic field, but actual devices are subject to variations in materials, construction and temperature. -
Page 31: Automatic Zero Function
OPERATING INSTRUCTIONS Handle the Hall probe with care. Do not bend the stem or apply pressure to the probe tip as damage may result. In other situations the user may want the probe to be exposed to a specific magnetic field during the zeroing process so that all future readings do not include that reading (such as the earth’s field). -
Page 32: Figure 3-12 Automatic Zero Function
OPERATING INSTRUCTIONS Figure 3-12 Automatic ZERO Function Press the AUTO pushbutton and the process will begin. The “AUTO” legend will also flash. Once automatic zeroing begins it must be allowed to complete. During this time all controls are disabled except for the POWER switch. The process normally takes from 5 to 15 seconds. -
Page 33: Manual Zero Function
OPERATING INSTRUCTIONS will disappear. The “ZERO” legend will continue to flash to remind the user that the ZERO mode is still active. If the nulling process is successful, the highest range is selected. No further electronic adjustments are made, but at this stage a reading is acquired which will be mathematically subtracted from all future readings on this range. -
Page 34: Figure 3-13 Manual Zero Function
OPERATING INSTRUCTIONS Figure 3-13 Manual ZERO Function By turning the MANUAL control in either direction the reading will be altered. Turning the control clockwise adds to the reading, turning it counterclockwise subtracts from the reading. Turning it slowly results in a fine adjustment, turning it quickly results in a coarse adjustment. -
Page 35: Sources Of Measurement Errors
OPERATING INSTRUCTIONS be non-zero depending upon the magnitude of the change. The adjustment has 10 times less effect on the highest range. SOURCES OF MEASUREMENT ERRORS When making flux density measurements there are several conditions that can introduce errors: 1) Operating the meter while the LOW BATTERY symbol appears. Instrument specifications are not guaranteed when a low battery condition exists ! 2) Failure to zero the error signals from the meter, probe and... -
Page 36: Figure 3-14 Probe Output Versus Flux Angle
OPERATING INSTRUCTIONS 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. -
Page 37: Figure 3-16 Flux Density Variations In A Magnet
OPERATING INSTRUCTIONS such as hairline cracks or bubbles, or an inconsistent mix of materials. Generally the sensitive area of a Hall generator is much smaller than the surface area of the magnet, so the flux density variations are very apparent. Figure 3-16 illustrates this situation. -
Page 38: Warranty
WARRANTY This instrument is warranted to be free of defects in material and workmanship. Sypris Test & Measurement’s obligation under this warranty is limited to servicing or adjusting any instrument returned to the factory for that purpose, and to replace any defective parts thereof. This warranty covers instruments which, within one year after delivery to the original purchaser, shall be returned with transportation charges prepaid by the original purchaser, and which upon examination shall disclose to Sypris Test &... - Page 39 THIS SHEET BLANK ! (Back of Warranty)
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- Page 43 6120 Hanging Moss Road Orlando, Fl 32807 Phone: 407-678-6900 Fax: 407-677-5765...
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