determine li-ion battery reliability in just 10 seconds low-frequency ac-ir measurement without charging/discharging substantially reduces the time needed to inspect the internal resistance of battery cells. battery impedance meter BT4560 component measuring instruments
2 incomparable speed exceptional accuracy unsurpassed stability oreuency ai measurement enables aster measurement ast o need to carediscare traditionally, the internal resistance of battery cells is measured by pre-charging the battery, then passing large currents and measuring the voltage drop (dc-ir measurement). pre-charging the battery, however, usually takes several minutes to several tens of minutes. the BT4560 eliminates the need for charging or discharging by measuring the internal imped - ance at a low frequency of 1 hz or below ( ac-ir measurement ), enabling significant reduction in the time required for measuring battery cells. when measuring at a frequency of 1 hz requires around 10 seconds * ac-ir measurement (using BT4560 ) requires 20 to 30 minutes to around one hour, including charging/discharging dc-ir measurement (conventional method) comparison of time taken to measure battery cell internal resistance difference in speed
3 the BT4560 battery impedance meter substantially reduces the time required for inspecting li-ion battery cells by measuring at low frequencies, providing a fast and accurate measurement of the battery status. high reliability guaranteed through proven performance accurate, stable measurements voltage measurement accuracy comparable to high-end testers 3 m minimum range with high noise suppression accuracy: 0.0035% rdg. 5 dgt. minimum resolution: 10 v the BT4560 employs ac-ir measurement with a small current load, enabling highly reliable mea - surement without damaging batteries. accuracy: 0.4% rdg. 8 dgt. * minimum resolution: 0.1 supported, improving the fexibility of cabling in pro measure dc voltage with high accuracy measure without damaging batteries measure very low impedance circuit confguration highly tolerant of contact resistance two types of dedicated probes for different purposes clip type probe l2002 pin type probe l2003 for measuring laminated sheet batteries for line-embedded applications and various other types of batteries dedicated probes with four-terminal structure enables stable measurement unaffected by environmental noise or cabling. the BT4560 can mea - sure the voltage much more accurately than traditional resistance meters(0.01% rdg. 3 dgt.). it guarantees highly accurate voltage measurement where greater accuracy than that of previous ma - chines is required. compared to the cur - rent used by traditional battery testers, 0.1a, the BT4560 uses a cur - rent 15 times stronger, 1.5 a, which improves the s/n ratio. enhanced noise suppression enables the device to provide reliable measurements for low-impedance batteries used for hybrid and plug-in hybrid vehicles. adjust the point of contact by sliding a stopper. * contact your local hioki distributor for details of the probe tip shapes. * when pure resistance is measured with measurement speed set to [ slow ] threaded holes are provided to secure the probe on an inspection fxture.
4 an alternative measurement method for inspecting charging/discharging output characteristics (dc-ir) [low-frequency ac-ir measurement] information obtained by low-frequency measurement correlation between dc-ir measurement and low-frequency ac-ir measurement electrochemical characteristics of a battery and cole-cole plot conceptual diagram of a battery battery equivalence circuit electrolyte resistance reaction resistance lithium ions move between electrodes through the electrolyte measurement at low frequency reveals the reaction resistance of the battery cole-cole plot when the correlation be - tween dc-ir and ac-ir measurements is plotted using multiple li-ion bat - teries .... a strong correlation is found between the measured values of dc-ir and low-frequency ac-ir. useful as an alternative to dc-ir testing dc-ir measurement ac-ir measurement method whereby a dc load is put through the battery, and the resistance is calcu - lated from the voltage variation that occurs. traditional battery testers only record the electro - lyte resistance of the battery by measuring it at a frequency of 1 khz. measurement at a low frequency of around 1 hz, however, enables the tester to also observe the reaction resistance on the surface of the electrodes. the BT4560 assures the quality of battery cells by investigating both electrolyte resistance and reac - tion resistance with a two-point measurement at high and low frequencies. in this way, it helps to im - prove quality and extend the service life of lithium ion battery modules. method whereby an ac signal is applied to the battery to measure its imped - ance. e 0 battery voltage imaginary part real part low-frequency region high-frequency region load current response derived from fast reactions response derived from slow reactions r r r 2 cr m m m m load positive electrode negative electrode ion movement in electrolyte ( electrolyte resistance) approx. 1 khz chemical reaction on electrode surface (reaction resistance): approx. 1 hz e - r 1 r 1 r 2 r 2 c li + li + li + li + two-point measurement at high and low frequencies a d b e c f 1 khz 1 hz 1 1 1 1 1 1 1 1 1 technical analysis [correlation coefcient r 2 =0.94] [correlation coefcient r 2 =0.99]
5 characteristics and features of bt 4560 the BT4560 requires no loading devices and provides measure - ments simply as a stand-alone unit, without having to establish a complicated measurement system. correct any ofset voltage and gain drift that may be present in the all-in-one compact unit self-calibration simultaneous measurement of impedance and voltage sample delay * prevent charging or discharging when ac voltage is applied * slope correction function * temperature measurement create cole-cole plots using bundled software the BT4560 comes with a free pc application that can be used for measurement and drawing cole-cole plots. you can also select the desired measurement frequency or export the measured values in text format. cole-cole plot drawing screen cole-cole plot data measurement screen * functions available during impedance measurement
6 embed in automated machines and production lines rs-232c usb (for pc connection) npn/pnp switch for e x t. i/o e x t. i/o functions suitable for automated machines monitor the contact resistance of the probe before and after mea - surement so that the measurement will only start when the measuring electrode on the probe is in contact with the object to be measured. ? ? ? contact check comparator panel saving and loading npn/pnp switch external control input/output terminal (ext. i/o) 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 pin ignal name i/o functionality 1 tart (tri) in starts measurement (external trigger) xor_hi xor_lo xor_in 330 mm 80 mm
7 accuracy specifcations impedance measurement accuracy voltage measurement accuracy temperature measurement accuracy accuracy graph 3 m range (0.1 hz to 100 hz), 10 m range, 100 m range r accuracy = ( 0.004 |r| + 0.0017 |x| ) [ m ] x accuracy = ( 0.004 |x| + 0.0017 |r| ) [ m ] (the units of r and x are [ m ] . is as shown in the table below.) z accuracy = 0.4% rdg. ( |sin| + |cos| ) accuracy = 0.1 57. 3 ( |sin| + |cos| ) ( is as shown in the table below.) 3 m range (110 hz to 1050 hz) r accuracy = ( 0.004 |r| + 0.0052 |x| ) [ m ] x accuracy = ( 0.004 |x| + 0.0052 |r| ) [ m ] (the units of r and x are [ m ] . is as shown in the table below.) z accuracy = 0.4% rdg. ( |sin| + |cos| ) accuracy = 0.3 57. 3 ( |sin| + |cos| ) ( is as shown in the table below.) accuracy 0.5c (measurement temperature: 10.0c to 40.0c) 1.0c (measurement temperature: -10.0c to 9.9c, 40.1c to 60.0c) temperature coeffcient temperature coeffcient: 0.01c/c (applied in the ranges of 0c to 18c and 28c to 40c) 3 m range 10 m range 100 m range fast 25 dgt. 60 dgt. 60 dgt. med 15 dgt. 30 dgt. 30 dgt. slow 8 dgt. 15 dgt. 15 dgt. temperature coeffcient r: r accuracy 0.1 / c, x: x accuracy 0.1 / c, z: z accuracy 0.1 / c, : accuracy 0.1 / c, (applied in the ranges of 0 c to 18c and 28c to 40 c) v display range ?5.10000 v to 5.10000 v resolution 10 v voltage accuracy fast 0.0035% rdg. 5 dgt. med 0.0035% rdg. 5 dgt. slow 0.0035% rdg. 5 dgt. temperature coeffcient 0.0005% rdg. 1 dgt. /c (applied in the ranges of 0c to 18c and 28c to 40c) accuracy [ % rdg. ] phase [ ] phase [ ] accuracy [ % rdg.] 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 ?180 ?180 ?90 x x r r ?90 0 0 90 90 180 180 3 m range (0.1 hz to 100 hz) , 10 m range, 100 m range 3 m range (110 hz to 1050 hz) impedance accuracy excluding ( 0.004|r|+0.0017|x|, 0.004|x|+0.0017|r| ) (when self-calibration is performed) v impedance accuracy excluding ( 0.004|r|+0.0052|x|, 0.004|x|+0.0052|r| ) z z
BT4560 specifcations (guaranteed accuracy period: 1 year) options instrument measured signals impedance, voltage, temperature measurement parameters r resistance, x reactance, z impedance, phase angle measurement frequency 0.1 hz to 1050 hz frequency setting resolution 0.10 hz to 0.99 hz in 0.01-hz increments 1.0 hz to 9.9 hz in 0.1-hz increments 10 hz to 99 hz in 1-hz increments 100 hz to 1050 ?? hz in 10-hz increments measurement ranges 3.0000 m, 10.0000 m, 100.000 m measurement range 5.00000 v (single range) resolution 10 v measurement time fast : 0.1 s med : 0.4 s slow : 1.0 s display range -10.0 c to 60.0 c resolution 0.1 c measurement time 2.3 s 3 m range 10 m range 100 m range measurement current 1.5 arms 10% 500 marms 10% 50 marms 10% dc load current 1 ma or less 0.35 ma or less 0.035 ma or less fast med slow 0.10 hz to 66 hz 1 wave 2 waves 8 waves 67 hz to 250 hz 2 waves 8 waves 32 waves 260 hz to 1050 hz 8 waves 32 waves 128 waves measurement functions ( r , x ,v,t ) / ( z ,,v,t ) / ( r,x,t ) / ( z,,t ) / ( v,t ) function comparator, self-calibration, sample delay, average, voltage limit, potential gradient compensation for impedance measurement, charge/discharge prevention during ac signal application, key lock, system test, panel saving and loading (up t o 126 condition sets) measurement error detection contact check, measurement current error, voltage drift on measured object, overvoltage input, voltage limit interface rs-232c/usb (virtual com port) * cannot be used simultaneously transmission speed: 9,600 bps/19,200 bps/38,400 bps ext. i/o trig, load, hi, in, lo, and others (npn/pnp can be switched) allowable input voltage up to 5 v operating temperature and humidity range 0 c to 40 c, 80% rh or less (no condensation) storage temperature and humidity range -10 c to 50 c, 80% rh or less (no condensation) operating environment indoor, pollution degree 2, altitude up to 2,000 m power supplies rated supply voltage: 100 to 240 vac rated supply frequency: 50/60 hz rated power 8 0 va dielectric strength 1.62 kvac, 1 min, cutoff current 10 ma (between power supply terminal lump and protec - tive ground) applicable standards safety: en61010 emc: en61326, en61000-3-2, en61000-3-3 dimensions and mass approx. 330w 80h 293d mm (12.99w 3.15h 11.54d in), approx. 3.7 kg (130.5 oz) accessories power cord 1, instruction manual 1, zero-adjust - ment board 1, usb cable (a-b type) 1, cd-r (communication instruction manual, pc application software, usb driver) 1 impedance measurement measurement current/dc load (dc load: ofset current applied to measured object during impedance measurement) battery impedance meter BT4560 standard accessories power cord, instruction manual, zero-adjustment board, usb cable, cd-r clip type probe l2002 cable length : 1.5 m pin type probe l2003 cable length : 1.5 m temperature sensor z2005 cable length : 1 m rs-232c cable 9637 cable length : 1.8 m * when self-calibration is performed, 0.21 s is added to the measurement time. 12 mm 9.15 mm 6.3 mm f 1.3 mm f 1.8 mm 2.5 mm headquarters 81 koizumi, ueda, nagano, 386-1192, japan tel +81-268-28-0562 fax +81-268-28-0568 http://www.hioki.com / e-mail: os-com@hioki.co.jp hioki usa corporation tel +1-609-409-9109 fax +1-609-409-9108 http://www.hiokiusa.com / e-mail: hioki@hiokiusa.com all information correct as of nov. 17, 2014. all specifcations are subject to change without notice. BT4560e1-4ym printed in japan distributed by hioki (shanghai) sales & trading co., ltd. tel +86-21-63910090 fax +86-21-63910360 http://www.hioki.cn / e-mail: info@hioki.com.cn hioki india private limited tel +91-124-6590210 fa x +91-124-6460113 e-mail: hioki@hioki.in hioki singapore pte. ltd. tel +65-6634-7677 fax +65-6634-7477 e-mail: info-sg@hioki.com.sg hioki korea co., ltd. tel +82-42-936-1281 fax +82-42-936-1284 e-mail: info-kr@hioki.co.jp note: company names and product names appearing in this catalog are trademarks or registered trademarks of various companies.
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