E WHO WILL ONLY ACCEPT THE BEST! SE PH = a CdHOW HIGH PERFORMANCE DMM’S WILL BE JUDGED FROM NOW ON ‘True rms DC+AC & AG Volta with 20kH2 band-width (BM837 only) DC+AC true rms_is_given by the expression: /DC% (AC ms)? With DCA. “true me. votage measuremen's, you can accurately measure the voltage values regardless of the ‘waveforms. such as: square, sawiooth, tangle, pulse trans, spies, as well as distorted waveforms with the presence of harmones and DC components. Harmonics and DC ‘camponents may cause: 41) Overheated transformers, generators ‘and motors to bum out faster than their shelf life 2) Circuit breakers to trip prematurely 3)Fuses to bow 4) Neutrals to overneat due to triplen harmonics present on the reutral (80H) 5 5) Bus bars and electrical panels to vibrate The wider the frequency band-width of the meter, the ‘more accurate the ‘measurement willbe, AG only true rms and average reponding meters. can introduce sionticant efrors. in many applications. See table 1 for typical example THPUT WAVEFORM TGsAG | AG AVERAGE ‘Thins | TAM |REPONSE| 00 ov Jernore |snson. lenaoe= oy oe | ee Jor=tatafora.an j.ooev Joaaev foow7 lexnone |ennon- lennon ‘om [seas [sro eras for-2.20 lo7ow fasiev fossa lenaen- enon. femaon= oe feers [ze cr=200 fora sy frooay farorv JO7eSr lengon- |eason. fenaon- oe [aaa [ais 4 or=2 00 * 3999- 4,000/40,000 counts + 9,999 counts dual display To ensure maximum speed, accuracy and resolution, the fast 3.3/4 digit 4,000 count digital display updates 5 times per second nominal, ‘The 10 times high resolution mode 4-3/4 digit 40,000 count digital display updates 1.25 limes per second nominal, ana Is, avaiable in, most functions, in dual display moce. you can simultaneously view ACVsH7 ACAsH7. AG ADP+H2, nS~GQ, SORT" VALUESSEVENT # S%aH2, Or dBmsHz in a 4 digit 9,099 a SY digital i Fig 4 LCD Full ibplay, Shown Actvai Size dBm and relative dB gain with 20kHz band-width (M837 only) Direct dual display readout of frequency and dBm referenced to 20 selectable impedances from 4, 8. 16, 92, 50, 75, 93, 110, 125, 135, 150, 200, 260, 300, 500, 600, 800, 900, 4000, up’ to 12008 . In testing of amplifies, fiters, of attenuators, use the relative function to express the ratio. of output power to input power in JB for fast gain or loss test. Output. of audio amplifiers typically runs as high as 20kH CODB m. TaileT: Wovelorme ad Crest Factors 40.000 ow resistance range Additional 40,000 low resistence range is excellent for locating contact resistance of motor carbon brushes, ‘connectors, or relays, ‘0G 40.00mV tow voltage range Additional 40.00mV low de voltage ange measures extremely small signals with superb resolutions. 99.999H2 low frequency range With 0.001H2 resolution, “you can effectively test variable frequency motor drives, ‘motor controllers, and other ‘equipment that operates at very low frequencies. The frequency counter is ble of measuring 05.000H2 up to 4.0000MH2 in 6 ranges with full 5 digits 99.999 count resolutions, Fig 2: dim + He Display Conductance with GQ in dual display Conductance isthe inverse of resistance, that 's S=1/9.. The series ‘eatures 400 0nS range with G22 in dual display, which virtually extends the resistanee measuring capability up to the order of Giga Ohms. Its useful for leakage measurements in diodes, Uransistors, connectors, printed circuit boards, capacitors, and. transformer insulation Figs: 05+62 Diphy 8 Capacitance measurement ranges h 600V protections You can practeally use test leads to check small electronic capaeitor values in the order of pf, as well as large motor run and start capacitor vaiues in the order of mf. The new meesuring technology employed provides superb accuracy, resoluion, and fully autoranging capabiities. ‘AC/DC Adaptor (ADP) ranges. AC true ‘rms 5OkHz band-width (BM837 only) Featuring SOkHz true ims ACV, or DCV adaptor ranges with 1000M nigh input impedence, It can vraly cope with any typeof transducer at the highest sensithity and the least current dain. In conjunction with the CREST, RECORD, or SORT™ feature, the DMM practically serves asa. superior recording instrument. With a current lamp adaptor and the MAXIMIN crest feature, you can capture in rush current an {rcubleshioot motor a Greut. ADP + He i 40,000 Counts Osplay 128 times/sec extra high speed 43 segments analog bar graph Wa the 43 seamen aalog bar graph updates 128 times/sec in DC Voltage & Resistance functions, you can. eesily detect faulty contacts, ~ Identity Doteniomesr clots, and indicate sia sles srg adustmens in er modes & functions, the bar graph Updates 20 times Showing excelent trending to cope with the signal characteristic Fast audible continuity test with 150us response time Audible continuity test is a quick gomo-go ust tat singulses jelween an open and a closed circur. The mater will give a continuous bee tone when the input resistance drops below 100 for at least. 150us (micco-second). This is useful for Checking wiring connections and operation of switches. The faster the response time, the more pracical the function wl be. Back lighted LCD display (BM837 only) Allow better visibility in low-light conditions. It tums off automatically after 42 seconds to extend battery life.S0ms RECORDS MAX, MIN, MAX-MIM, AVG with autoranging capability You can easily track intermittent signals, capiute _tum-on” tum-off sulges, and monitor line votage changes over a much wider dynamic range with the best resolution, It iarael surpasses single range rezording whic! is "easily overflowed, or with insufficient resolution. The BM830 sere. features a fast. single, range sampling speed of SOms for MAX, MIN, MAX-MIN and AVG readings. The fasier the sampling speed, the more accurate the measurement of surges, spikes and sags will be, The true average AVG feature calculates. all readings taken cover time continually. ‘ig 5: RECORD Function Display .6ms CRESTS MAX, MIN, MAX-MIN capture You can capture transient signal crest voltage (instantaneous peak value) as short as 0.8ms. This function can be Used to determine crest factor which can indicate the presence of harmonics. Crest factor is the ratio of orest value to the true rms value. A pure sinusoidal wavetorm hes a crest factor of 1.414. : “2828 - ig 6: OREST Function Display SORTS™ MAX, MIN, MAX-MIN, AVG with autoranging capability SORT™ is one of the most usetul innovations. The function senses a stable measurement, beeps, captures it {or comparison, then stores the maximum and” minimum readings together with the event numbers in memory for later display. The average feature calculates all the readings taken and displays. the true average value together with number of events counted. This simolfies MAX & MIN values sorting, MAX-MIN & AVG values ‘calculation, and quantity counting in ‘component inspection, When used with relative % change function, readings will ‘be ‘dsplayed in terms ot percentage ceviation. 79 7 SORT Function 6p Relative zero (4) with autorangin: conan Relative zero allows the user to offset the meter measurements wih a relative feference value. Practically all Measured readings can de Set_as ‘olative reference value including MAX MIN, MAX-MIN, and AVG readings of RECORD or SORT” functions. Relative percentage change (*%) with center zero auto zoom bar graph In this mode, the readings show ‘elative percentage changes, and the bar graph automaticaly indicates. +/- 200%, of 4/- 20% ull scale changes with fespect to the relative reference value as center zero point. It simplifies, zero, peaking, nuling measurements and is excelent for fine adjustments, Fig 5: RELATIVE % CHANGE Display Relative per unit (U) A unique feature to show the ratio of measuring values to the relative base value. The relative base value is considered to be one unit, and the consecutive measurements will be displayed in terms of unts, Measuring the parale! capacitance of co-axial cable or parallel wire in. conjunction with the relative per unit mode, for example, helps estimating the total catle length or locating cable breakage locations. 7g 9: RELATIVE PER UNIT Disp HOLOE function When in normal measuring modes, the hold feature freezes the display for iater view. When in RECORD or CREST mode, however, the hold. function stops updating the measurements, and (ou ca read throughout the locked AX, MIN, MAX-MIN. and AVG readings. Release the hold function to continue RECORD or CREST. Data store & recall (MEM) This feature stores the whole display data in memory tor later recall. The memory will remain even in auto-power-off mode, and can also be recalled while you aré in another meter function Diode test Diode test is a simple way to check the condition of diodes by measuring the diode forward and reverse voltage. Autoranging current measurements with audible & visible input warnings The BM830 series equips with 6 ranges of current measurements from 400.6uA up to 10.00A, high energy fuses protection, and audible & visible ingut Warnings to ensure ease of use as well as safe operation, The input wamings produce a 'Infrr’ display and a beep tone to warn the user against possible damage to the meter due to improper Connections to the A or uA input jack. Tig 10: Input Waraing Display Rugged, individual battery compartment, sealed construction ‘An individual battery compartment sealed against battery leakage Contaminant which easy cause fatal printeo circuit board shortage and also earadation of accuracy. A splash proot case sealed against dust, dirt and moisture even under harsh operating environments. Safety Designed to meet UL3I11-1, CSA 22.2 No.231, and IEC 1010-1 installation catogory Ill, PRODUCT SUMMARY FUNCTION/FEATURE _6NB35_B1N037| 4000 COUNTS (FAST) © © ee e 40,000 COUNTS (SLOW) ‘ANALOG BARGRAPH ‘DUAL DISPLAY (0.08%. BASIC DOV ACE @ BACKLIGHT DISPLAY TRUE RWS CONVERSION e DE VOLIAGE, E RANGES —@ © AC VOLTAGE. 5 RANGES DEsAC VOLTAGE. 4 RANGES (DG CURRENT, 6 RANGES © "AC CURRENT, 6 RANGES RESSSIANGE, 7 RANGES. [CONDUCTANCE, 1 RANGE FREQUENCY, 6 RANGES DUTY CYCLE, 1 RANGE (CAPACITANCE, 6 RANGES [DG ADAPTOR, 1 RANGE ‘AC ADAPTOR, 1 RANGE 6 Bm & dB (20 REF)_1 RANGE DIODE TEST, | RANGE (CONTINUITY, 1 RANGE ‘50ms RECORD [sms CREST SORT DATA HOLD STORE & RECALL RELATIVE ZERO RELATIVE % CHANGE — ATE PER UNIT INPUT WARNING ‘SPLASH PROOF OASE PROTECTIVE HOLSTER TOTAL RANGESGENERAL SPECIFICATIONS Display 3-24 cgits 4000 counts or £374 gts 40000 courte eolictable (5 egite £0909 coun for Ho}, and 4 cigs 9980 counts dual display LCD olay: Astonstic. Update Rat 3-40 Date: 8 per second neminat 4-40 Date: 1.25 per soconé nena; 49 Segments Bar graph: 120 pe second max Law Baier: The indicator appears wien the Datery voltage drops below zppron. 58 Operating Temperature :0°C 10 35,C, 080% Rt 38 10 90°, 0-705 A Storage Temperature :-20°C 1060'C, 808 RA (oy tattryramovee) Tomperature Cooficont: nominal 0.15 (Gpecited ccuracyy/C @(0'C-18°C or 28°C-40 "C), or there species Power Supply : Single Alaine 9 batoy, INEDATGOS,uISDOEP or ECBFZ2 ‘APO Timing: Iclefor 4.5 minstes ‘APO Consumption: 20 2& ‘Dimension :Ligsivm Xwa7mn XH36.smm (witout toiste) Salety: Designed to UL3t11-1, CSA C222 N02, and IECYC10-1 instalation catogory ‘Overlord Protections A Eimk-O6BNSO0V Fuse, IR 20044; ‘A: 1BAEOOV Fes, R 100A: ¥:7nVIms, 1000¥peck; nV: 6O0VDGNAG mms; Others: 6O0VOGVAC rms ‘Sensing: True RMS fr BVBS7; Average responding for BMB35 Power Consumption 12a ‘Weight: 290 gm (without roster) ‘Acessories: Test leads (pat), holser,batey instaled and users manual ELECTRICAL SPECIFICATIONS: Jehu pao rs Mbue oar onamunsesere, Are 58 Us Tan ‘Societe oat aso ete Go ee ean att ae De Voltage DC Current rate came onee] ame — [one [ase [torr] a a amar et what | pee | aa Cro a too [aero | Laat co e018 some [ase sen] a oes ‘MAR 12068 @ DD, SOIEOHE, R=! eae rae 4k ‘itr ht, KFS. of AC range Input Impedance : 10002, S2pF nominal (1O9pF neminat proeee Sree ca ai outa —20KH2, > SI FS. of AC range tow nt feos [sess | sve rs aa, ae ee it a Sin, 2 accorent , sant ra Coo a3" = RANGE EME37_ ae 400m, 4.00V, 49.00, —— [e.1% — 92.9% AsoKhe+2d aa som oon ioe [ome | cme | | Tague SEN amE oS a fanaa [oss] tear Cane | cyactee a2 cao] flsomn | nat [once }4ocov. 40.00v, so00v_| 08%44d | 08% 44d Hens Cea 1 Sel nso 10% s4d | 10% +40 Hi 2008 at a tea [0008 38 _BOWA, oon Tomesa [iomeag | © feote— tome - | ee | flonan | eee [eae [wear Er EGR frome [omar | tone [on mer ato [ismee [mte™| ae a om] fluent [rear | toc | Somme a ee] fa ise [aan] cove = wee | feet some [a nae oki oot — ate sooo Unepors [2 sabe jaonox.h Tunepee's [ unepeets [o.sénvina dBm (8M837 only) Se loon fame ae Pemn| SLCMeT Ot a y ssiemana Wigan Seaprses teow fons tomertomer Sam] ieisiaarse'scSnsnaen pees voni0s w spe Hovona fse t zacst | sank | ion, -1170sbnte 424m, Se i a ee een forsee [ees [sas] tS mn **Specifieg rom 10% to 100% of range =i) Audible Continuity Tester se ==] als ana panes a (onan tis tomato ate ae rate sams mae] «Seva ements 4000V, 40,007, 200 OV. 75. 0.0% + 8 — Accstac ‘DC Adaptor oe aaa ona BaF aoe 409.0°2, 4.000K82, 015% +20 ‘Ronee eid tn ST ; Fad tao fen oa feo, an a ‘tte — Sie 4.000 O34 92d 0 ceurts por 1 VAC roe feos ai La Sal nae ss ese wie Stipa ila tas sin 7a Soe cma <1 = Cee Freuony ra os =a RYMEN) ‘Input impedance: 1OMD, 30pF nomial sceuragy a "cto ie ae a [RY EN TECHNOLOGY CORPORATION Ht Diode Tester 3. 99st, $0 989K, Range Poaracy [TexGren] Ope Gran vorge] — [ezegar, somou:_| aan Sona ae 7 z ie aoe fro] ena [one [case {Oe — ae ~-puese mon >aa8