Working Principle - Yuxiang Magnetic Material Co.
Contents
1. the zeroing knob to make the pointer to locate exactly on zero line 0 then adjust the measuring knob to the range which will be measured after repeating the zeroing process measuring work could start b When use 10mT adjust the measuring knob to indicate 10 then adjust the zeroing knob ii to make the pointer to locate exactly on zero line 0 Caution c When in use especially measuring 10 100mT if the probe is pressed distorted or temperature on the magnets to be measured changes the zeroing process should be performed to eliminate errors d Due to the high sensitivity of 10mT measuring range tester should check frequently if the zero line 0 changes If so zeroing process should be performed before measuring e When zeroing the hall sensor should not be place near magnetic field 3 Measuring a Adjust the measuring knob to the measuring range desired b Remove the metal and plastic protecting cap on the hall sensor c Put the top of hall sensor into the magnetic field to be measured d Slowly moving the hall sensor locate the max Value the angle between magnetic field measured and hall sensor should be 90degree measured on the magnets which is the reading of magnetic field measured e When measuring is finished adjust the measuring knob to OFF 3 lt the turn off the power supply disconnect the hall sensor Caution a Before measuring please check and ensure t2. least 1M afar from the same 2 Operating instructions 1 Zeroing Turn the measuring knob to OFF X first adjust the mechanical zero setter 0 in the instrument s center to make the pointer locate on zero line 0 Caution This process should be adjusted carefully before connecting power supply so as to ensure the accuracy rate 2 Connecting power supply a Connecting power supply outlet and Hall Sensor with Tesla meter b Press down the power supply indicator On the left side c Connecting power supply 220V 10 50Hz Calibration line adjust When the measuring knob indicates Calibration 7 the pointer should locate near the calibration constant which could be found on the probe Warm up for 30 minutes then adjust the calibration hole lt f make the pointer locate exactly on calibration constant Caution a This equipment adopts constant current circuit and usually the current changes seldom Adjust is only needed when ambient temperature changes considerably If the current fluctuates too greatly please check if the constant current apparatus is out of order 4 Zeroing of amplifier adjust the measuring knob to indicate 0 adjust mechanical zero setter 0 in the instrument s center and make the pointer to locate exactly on zero line 0 5 Zeroing knob a When use 50 2500mT measuring range adjust the measuring knob to indicate 50 then adjust
3. CAUTION Hall sensor is very fragile in order to make difference of good quality from bad do not tear off the seal of the sensor before you start to use it You may take following steps to check in advance l 2 Joint plug of Hall sensor with apparatus Switch on the power supply then step on adjusting and zeroing generally you could adjust to zero line it is testified that the sensor is in good condition If the needle could not be adjusted to zero line or out of order our factory is responsible of repairing While for the sensor is device easy to break off so we could not take responsibility if it is broken when the seal is torn open However we still repair the whole apparatus for you Tearing the seal and unscrewing metal cap then you may operate it Please be noticed that you should pull out the cap with direct orientation when you unscrew and do not try to do in deviation avoiding the cap touching the head of sensor and break it In addition during the process of usage please pay special attention to the head of sensor avoiding any pressing crushing twisting bending and clashing etc in order to avoid the apparatus being destroyed and could be used it is best to name specified personnel to use it 1 Summary CTSA Hall effect tesla is a kind of magnetoelectricity multi range tesla that composes with integrated calculating amplifier It uses Hall effect theory and high gain low deviation It can once test AC magnetic f
4. d back 3 Technical specifications 1 Measuring range mT 0 10 50 100 250 1000 2500mT 2 Polarity of Magnetic field N and S 3 Accuracy 2 5 for the 50 100 250 1000 5 for 0 10 calculate by percentage Currently it is calibrated by 1000point for 2500 scope 4 Operating temperature 5 C 40 C 5 Overall dimension of Hall sensor 3 2x1 1x35mm 6 Using position Horizontal position 7 Power supply 220V 10 Overall dimension of tesla meter 210x160x100mm 4 structure of apparatus main parts of apparatus include Hall sensor compensating circuit regulated power supply IC Yuxiang Magnetic Materials Ind Co Ltd 2 Add Floor 16 Jinyuan plaza 57 Hubin nan Road Xiamen CHINA 361004 Url Http www e magnet cn E mail yingli magnets com cn or mag e magnet cn amplifier permanent current device and magnetoelectric millivotmeter please refer to drawing 1 Permanent Hall Compensating IC Range Magnetoelectric current sensor circuit amplifier selecting millivometer device regulated power supply 1 Hall sensor the apparatus has one CT5A 1 Hall sensor and can test transverse magnetic field Also it installs gallium arsenide Hall device and the dimension of CMOS chip is 1x10 2mm the device is glued on the insulated scaleboard and protected by flat copper shell outside When it installs testing hand the figure size of sensor is 3 2x1 1x35mm the device is coordinately installed the head
5. he above 1 5 processes are correct b When measuring hall sensor s plane should be perpendicular to the magnetic field to be 6 Yuxiang Magnetic Materials Ind Co Ltd Add Floor 16 Jinyuan plaza 57 Hubin nan Road Xiamen CHINA 361004 Url Http www e magnet cn E mail yingli magnets com cn or mag e magnet cn measured c When measuring the hall sensor should be moved slowly and slightly to prevent it from being damaged 4 Polarity identification of magnetic field When measuring when the pointer locate from 0 to max Value measured check the copper tube on the hall sensor the side with N on the probe is N pole and conversely it is S pole 7 Examine and repair for apparatus 1 Sensor 1 The knob indicates 50 while could not adjust to zero line even the reading number reach the end of scale 2 The knob indicates adjusting while could not reach to adjusting line even only reach to 0 scale sometimes Checking method using range R X 10 of multi purpose meter to measure the resistance of 1 3 and 2 4 of the sensor Eligible resistance of device should be 400 600Q reading number should not have great discrepancy 1 Four wires of sensor are broken or badly connected this happens more easily when the copper tube is flexible You should check it very carefully and weld tightly so that it would be ok 2 Because of pressing or bending the sensor has had leakage and resulted in making in
6. lux density fast and exactly so can be used as a convenient and time saved necessary apparatus for magnetic testing personnel 2 Characteristics of apparatus l 4 5 The probe of the apparatus can be replaced and the apparatus is composed with host part and probe that is Hall sensor The chip in probe is a gallium arsenide Hall magnet sensitive device that characterizes as low deviation high linearity and sizing 1 1 Besides this the capability of circuit of host part is very stable All this successfully settled the problem that the old CTS tesla had Old CTS only have one probe and its probe cannot be replaced This apparatus displays with magnetoelectricity pointer and its dial has clear reflecting mirror magnetic field 0 2 5T all using one scale users could check the value of magnetic field in the testing in a short while In addition different magnetic wares have different sensitivity so on the dial there has one standard reading constant line T and the users could adjust according to the probe the factory originally provided By this way you can precisely test out the value of magnetic field you needed This apparatus can test transverse magnetic field with clearance gt 1 2mm If it equips CT5A 2 Hall sensor it can test axial magnetic field of trachea with diameter gt d7mm The apparatus CT5A has 18 months limit of guaranteeing usage All damages which not caused by incorrect using we all could repair replace or han
7. n nan Road Xiamen CHINA 361004 Url Http www e magnet cn E mail _yingli magnets com cn or mag e magnet cn the magnetic field B that is vertical with surface of semiconductor electrons will change their way so called Laurence strength because of the effect of strength of magnetic field BH and produce electron accumulation on one traverse side of the slice then resulting in building electric field between two sides 2 4 When magnetic force FB equals to electric force FE the accumulation of electron reaches to homeostasis and then produces a stable Hall electric potential VH We call this phenomenon as Hall effect Initial connection VH KH IH COSO H working current B magnetic flux density KH sensitivity of device relevant to shape coefficient fg thickness d and Hall constant RH VH Hall electric potential O stands the angle between two lines of direction of magnetic field and plane of semiconductor From above we can understand that when the size of material of semiconductor is decided working Electron accumulation ER Se Vertical line current is given at this time the Hall electric potential VH will be in direct ratio to tested magnetic field B if the position of Hall device and magnetic field is fixed up when angle 0 O that is the outputs comes to max VH is in direct ratio to B 2 3 This apparatus is produced according to Hall effect theory mentioned above In order t
8. ner resistance larger If this happens it can not be repaired and only take a new sensor however since there exchange limit between different sensors so it should be sent to factory with apparatus to make repairs and supply replacements 2 FC72 amplifier Malfunction the indication 0 could not be adjusted to zero line when the knob indicates 0 this means the amplifier is out of order Checking method 1 Take part of the apparatus and check whether the zero to ground on the printed circuit board is 12V and six to ground is 12V 2 Check whether the potentiometer is broken 3 If two points above are in good condition it indicates that the amplifier has been out of order or badly connected 3 Permanent current supply Malfunction 1 The knob indicates adjusting while could not adjust to adjusting line but the checking of sensor testified that it is in well condition 2 The knob could adjust to adjusting line while the reading of the scale is not stable or changed constantly Checking method 1 Check when put 7 feet or 4 feet of F007 to ground the voltage should be 9V 2 Check when 2 feet of F007 to ground the voltage should be about 1V and two sides of 2DW7C voltage regulator under low part of circuit should be 6V 8 Package content 1 CTSA tesla meter Iset 2 Hall sensor Ipcs 3 Wire connecting power supply lpcs 4 Carton Ipcs 5 User manual 1 copy 6 Product s qualificati
9. o ensure to keep working current stable the apparatus uses F007 as permanent current circuit to provide power to device IH and takes FC72C IC AC amplifier to expand range helping reading enlarger of high sensitive millivotmeter to output VH and so that people could read the magnetic flux density B directly Attention The reading number of this apparatus indicates the number of magnetic flux density of testing point which is different from B in practical usage and parameter of material Br 6 Operating instructions 1 Caution 1 Hall sensor in the probe is fragile Care should be taken to protect the Hall element from excessive stress due to shock pressure bending and bump 2 Tesla meter should be kept and used by assigned person so as to minimize the possibility of damage 3 User manual should be read carefully before operation 4 Before operation please check if there s calibration constant marked on the probe 5 Before operation please check if the copper sleeve on the hall sensor is tight enough if not 5 Yuxiang Magnetic Materials Ind Co Ltd Add Floor 16 Jinyuan plaza 57 Hubin nan Road Xiamen CHINA 361004 Url Http www e magnet cn E mail yingli magnets com cn or mag e magnet cn please fasten it 6 Hall sensor should not be used in environment with strong sunlight temperature higher than 60 C and corrosive gas 7 Tesla meter should not be stored near strong magnetic field and should be keep at
10. of copper tube Ref to drawing 2 Flat copper tube Flat copper tube Jevice 4 gfe anne Size of surface Bi The user could note to add CTSA 2 sensor when place the product if he needs test axial magnetic field of trachea that is magnetic field which parallel with the rod of sensor The figure size of CTS5A 2 sensor lt 6 5mm length of rod 400mm 2 Compensating circuit for technical reason when match electric current the sensor originally has no output if it is not put into magnetic field But because the voltage of two sides of device isn t at same surface and already has output its range changing according to different temperature So it must have one compensating circuit This apparatus take bridge circuit to compensate and use zeroing knob to adjust before beginning to test Through this way the output on the dial 1s zero in the normal State ee Unparalled electric potential compensating circuit Yuxiang Magnetic Materials Ind Co Ltd 3 Add Floor 16 Jinyuan plaza 57 Hubin nan Road Xiamen CHINA 361004 Url Http www e magnet cn E mail yingli magnets com cn or mag e magnet cn Regulated power supply there are two suits of reliable three ended integrated regulators under the shell of apparatus 1 9Vfor permanent current and 2 2 12V for FC72 amplifier AC amplifier in order to expand its range the apparatus uses FC72C high linearity low deviation CI calculating amplifier to advance its sen
11. on certificate 1 copy 7 Fuse 2pcs Yuxiang Magnetic Materials Ind Co Ltd Add Floor 16 Jinyuan plaza 57 Hubin nan Road Xiamen CHINA 361004 Url Http www e magnet cn E mail yingli magnets com cn or mag e magnet cn 9 Theory circuit diagram
12. sitivity shorten its size and predigest its craftwork The apparatus has zeroing device to adjust the zero line of amplifier Ei f wits Ct af gt yl EY To stat Garr I JJa NDF Ghat l MATa o ATA Sa C Le DOG lbk Jina t Permanent current device during the process of testing the working current of Hall sensor should not be changed Especially when testing magnetic field the magnetic blocking effect is apparent and so that will effect variation of working current This apparatus uses Foo7C linearity IC guaranteeing the working current is unchanged when testing At the same time in order to assort with ununiformity of sensitivity of device and temperature effect the apparatus installs one adjustable calibration device as compensation magnetoelectric millivotmeter the appartatus uses high sensitive testing device and parallel in series resistance to make up a wide range millivotmeter Also it adjusts limit of each range by change the resistance of connection in series In order to protect the testing device during the process of transportation the apparatus has off button to make the device in short circuit 5 Testing theory Hall effect means that electrify on the two traverse sides 1 3 of a piece of thin semiconductor slice at this time electrons in semiconductor move with direction reversely from IH When putting into 4 Yuxiang Magnetic Materials Ind Co Ltd Add Floor 16 Jinyuan plaza 57 Hubi
Download Pdf Manuals
Related Search