3-phase inverter waveform recording example differential probe 9322 ?floating measurement of high-voltage waveforms ?detection of power supply surge noise ?rms rectified output introducing a new 3-function universal probe 3-phase inverter output circuit (floating measurement is essential due to varying emitter potentials of each phase.) ? product outline and features 3 kinds of measurement with a single probe the differential probe 9322 provides foating measurement of high voltage waveforms, detection of surge noise on power supply lines, and true rms rectifed output of high voltage ac. works with a variety of power supplies, such as an ac adapter or logic terminal for operation, convenience is the key. operating power for the differential probe 9322 can be supplied from the standard logic terminals of a memory hicorder or the clamp sensor input terminals of an f/v unit 8940 , as well as from the probe's own ac adapter 9418 -15 . floating measurement of high-voltage waveforms (dc mode) when measuring the potential difference in signals containing a large common mode voltage component on commercial power lines, an electrocution hazard exists unless measurement is done using an instrument with fully isolated inputs, such as a memory hicorder. when measuring signals carrying common mode voltages with a high frequency component (such as those produced by inverter control circuits and switching power supplies), measurements are greatly affected by the rate of common mode elimination at the isolated inputs. although memory hicorders provide the greatest possible to-ground voltage rating (ordinarily 400v ac or dc), use of the differential probe 9322 raises the rating level to 1500v ac (cat ii), 600v ac (cat iii), allowing measurement of circuits carrying even larger common mode voltages. potential differences can be measured for input voltages of up to 2000v dc or 1000v ac (cat ii), 600v ac/dc (cat iii), producing a 1/1000 divided output. measurement of power line surge noise (ac mode) upon selecting the ac output mode, the ac coupled signal inside the probe is divided by 1000 for output. since the probe's frequency range is from 1khz to 10mhz, output waveforms are produced only when input voltages contain high frequency components, such as surge noise imposed on 50/60hz commercial mains power. the probe can thus serve as either a noise detector or for measurement of wave peaks. provides output of true rms rectifed voltages (rms mode) upon selecting the rms output mode, the input signal is divided by 1000, rectified to obtain the true rms value, then output as a direct current voltage. true rms rectification is performed by an analog circuit with a bandwidth of 40hz to 100khz, allowing true rms conversion of signals containing high frequency components, such as inverter output waveforms, as well as 50/60hz commercial mains. main applications measurement of potential differences included in common mode voltages, such as igbt measurement of commercial power line waveforms, such as on 400v power lines measurement of high voltage surge noise waveforms measurement of the rms value of inverter outputs, etc.
head office : 81 koizumi, ueda, nagano, 386-1192, japan tel +81-268-28-0562 / fax +81-268-28-0568 e-mail: os-com@hioki.co.jp hioki usa corporation : 6 corporate drive, cranbury, nj 08512 usa tel +1-609-409-9109 / fax +1-609-409-9108 e-mail: hioki@hiokiusa.com distributed by all information correct as of dec. 25, 2007. all specifcations are subject to change without notice. 9322e4-7ze-00p printed in japan hioki (shanghai) sales & trading co., ltd. : 1904 shanghai times square offce, 93 huai hai zhong road shanghai, p.r.china postcode: 200021 tel +86-21-6391-0090/0092 fax +86-21-6391-0360 e-mail: info-sh@hioki.cn beijing offce : a-2602 freetown, 58 dong san huan nan road beijing, p.r.china postcode: 100022 tel +86-10-5867-4080/4081 fax +86-10-5867-4090 e-mail: info-bj@hioki.cn guangzhou offce : room 303, proft plaza, no.76, west huangpu road guangzhou, p.r.china postcode: 510623 tel +86-20-38392673/2676 fax +86-20-38392679 e-mail: info-gz@hioki.cn 2 ? the differential probe 9322 cannot be used by itself. please use it in combination with a hioki memory hicorder . ? the differential probe 9322 requires a power supply. o rd e r i n g i n f o r m a t i o n differential probe 9322 (up to 2kv dc, 1kv ac) power power unit 9687 (factory-installed option, built in on the bottom case of the memory hicorder 8860 -50 / 8861 -50 .) simultaneously power up to 8 units of the 9322. (max. 3a output) power cord 9248 (power supply from the probe power unit 9687 for the memory hicorder 8860 -50 / 8861 -50 ) ac adapter 9418-15 (universal power supply for ac 100 to 200 v commercial mains; outputs dc 12v/ 2.5a.) l options power cord 9324 (power supply from large type logic connector) power cord 9325 (power supply from 8940 sensor connector) power cord 9328 (power supply from 8950, 8952, 8953-10, 8955 input units for the memory hicorder 8855 ) o usable hicorders usable input units memory hicorder 8860 -50 /8861 -50 (input unit sold separately) 8956, 8957, 8959, 8936, 8938 memory hicorder 8860/8861 (input unit sold separately) 8956, 8957, 8959, 8936, 8938 memory hicorder 8855 (input unit sold separately) 8950, 8952, 8953 -10 , 8955 memory hicorder 8841/8842 (input unit sold separately) 8936, 8938 memory hicorder 8835 -01 /8835 (input unit sold separately) 8936, 8938 memory hicorder 8826 (input unit sold separately) 8936, 8938 memory hicorder 8807/8808 (equipped with input section as standard) memory hicorder 8807 -50 /8808 -50 (equipped with input section as standard) power hicorder 8714/8715 (equipped with input section as standard) basic specifications (accuracy at 23 5c/73 9f, 35 to 80% rh, after 30 minutes of warm-up time; accuracy guaranteed for 1 year) measurement functions (1) dc mode, (2) ac mode, (3) rms mode input type balanced differential input voltage division ratio 1/1000 input resistance, capacity hCl: 9 m?, approx 10 pf (c at 100 khz) h, lCcase: 4.5 m?, approx 20 pf (c at 100 khz) output bnc terminal (dc/ac/rms 3-mode selectable output) maximum input voltage 2000 v dc, 1000 v ac (cat ii ), 600 v ac/dc (cat iii ) maximum rated voltage to earth when using grabber clip: 1500v ac/dc (cat ii), 600v ac/dc (cat iii) when using alligator clip: 1000v ac/dc (cat ii), 600v ac/ dc (cat iii) common mode elimination ratio 10000:1 or better (input/output ratio at 50/60 hz with input shorted) 1000:1 or better (input/output ratio at 100 khz or 1 mhz with input shorted) power supply (1) ac adapter 9418-15 (dc 12 v10%)* 1 (2) power supply through power cord 9324 connected to logic connector on memory hicorder.* 2 (3) power supply through power cord 9325 connected to sensor connector on f/v unit 8940 .* 3 (4) power supply through power cord 9328 connected to dc jack on input unit 8950/ 8952/ 8953/ 8955 , for the memory hicorder 8855 . (5)power supply through power cord 9248 connected to the probe power unit 9687 , for memory hicorder 8860-50/ 8861-50 . *1 operating voltage range: +5 to +12v, less than 300ma. dc jack od 5.5 mm, id 2.1 mm *2 power jack on probe connects to logic connector on memory hicorder through the power cord 9324 . up to "4 power cords" can be connected to the memory hicorder 8826 , only "1 cord" can be connected to the memory hicorder 8841 , 8842 , 8835 or 8835 -01 . with the 8841 , 8842 , 8835 , and 8835 -01 , the differential probe 9322 cannot be used in combination with the logic probes 9320 and 9321 . with the 8826 , the 9322 can be used with the 9320/9321 in the following combinations. " 9324 4 with no 9320/9321 " " 9324 3 and 9320/9321 4" " 9324 2 and 9320/9321 6" " 9324 1 and 9320/9321 7" *3 power jack on probe connects to sensor connector on the f/v unit 8940 through the power cord 9325 . up to "6 power cords" 9325 can be used with the memory hicorders 8826, 8841 , and 8842 , and up to "4 power cords" can be used with the memory hicorder 8835 -01 . when used in combination with the clamp sensors 3273 or 9270 series , up to "6 power cords" can be used in combination with the 8826 and up to "4 power cords" can be used in combination with the 8841, 8842 , and 8835 -01 . dc mode application waveform monitor output frequency characteristic dc to 10 mhz, 3 db dc amplitude accuracy 1 % f.s. (1000 v dc or less) 3 % f.s. (2000 v dc or less) f.s.=2000 v dc ac mode application detection of power line surge noise frequency response 1 khz to 10 mhz 3 db rms mode application rectified rms output of dc and ac voltages frequency response output accuracy dc, 40 hz to 1 khz : 1 % f.s. 1 khz to 100 khz : 4 % f.s. f.s.=1000 v ac response speed 200 ms or less (400 v ac ) other ce mark compliance safety: en61010, emc: en61326 supplied accessories alligator clips (2), grabber clips (2), carrying case 3853 (1) dimensions and mass : approx. 70 (2.76in) w 150 (5.91in) h 25 (0.98in) d mm, approx. 350g (12.3oz) cable length: main unit cable 1.3 m (4.27 ft), input section cable 46 cm (1.51 ft) (2) power supply from logic probe terminal via the power cord 9324 (1) power supply from the ac adapter 9418-15 (3) power supply from sensor connector on 8940 via the power cord 9325 (4) power supply from the memory hicorder 8855 via the power cord 9328 (5) power supply from the memory hicorder 8860-50/ 8861-50 via the power cord 9248 and the probe power unit 9687
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