Summary of 405
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Digital multimeter 405.
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Nearly every electrical engineer has a hand held digital multimeter (dmm). We sometimes take them for granted, until we damage them or “burn them out” if you incorrectly connect your dmm to a circuit, or if you have the dmm on wrong setting, you damage the meter and possibly hurt yourself. You can a...
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Overview warning to avoid electric shock or personal injury, read the “safety information” and “rules for safe operation”carefully before using the meter. Digital multimeter model - 405 (hereafter referred to as “the meter”) is a 4½ digits trms multimeter with steady operations, and highly reliable ...
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Features : n low power consumption cmos double integration, a/d transform integrated circuit, auto zero calibration, auto polarity display, data hold, low battery & over range indication. N display : 4½ digit (19999 counts) with digit height 17mm and function/units sign annunciators. N selected rang...
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Electrical specification : ac voltage 50hz~500hz (true rms) input impedance : 10mw overload protection : 500v dc or 350vrms on 200mv range, 1000v dc or 750vrms on all other range accuracy ±(1.0% rdg +10 dgts) ±(2.0% rdg + 20 dgts) resolution 10 m v 100 m v 1 mv 100 mv 10 mv range 200 mv 2 v 20 v 750...
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Duty cycle accuracy pulse width > 10m sec. ±(2.0% rdg +10dgts) range 0 - 90.0% resol. 0.1% overload protection : 500v dc or ac rms frequency range : 20 hz to 20 khz frequency sensitivity : 50mv rms (sine wave), 400mv rms at > 30% and input frequency : more than 10 hz at pulse width > 2m sec. Overloa...
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N disconnect circuit power and discharge all high -voltage capacitors before testing resistance, continuity, diodes, or current. N replace the battery as soon as the battery indicator appears. With a low battery, the meter might produce false readings that can lead to electric shock and personal inj...
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Functional buttons below table indicates the functional button operations buttons power (black button) operation performed switch the meter on and off. N press the power button to switch on the meter. N press the power buttonto turn off the meter. Data-hold (black button) n press hold button to hold...
Page 9: Measurement Operation
The dc voltage ranges are :200mv, 2v, 20v, 200v, 1000v. To measure dc voltage, connect the meter as follows : 1) insert the red test lead into the vw input terminal and the black test lead into the com input terminal 2) set the rotary switch to an appropriate measurement position in v range. 3) conn...
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Never attempt an in - circuit current measurement where the open circuit voltage between terminals and ! Warning : (figure 5) red black ~ w 1000v 750v max 200ma max fused 20a max fused cat. Ii 405 multimeter 20a m a ma com vw hz power auto power off true rms data hold tuv safety approved to iec1010 ...
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The dc current measurement has 5 measurement positions on the rotary switch : 200m a, 2ma, 20ma, 200ma, 20a. To measure dc current, connect the meter as follows : never attempt an in - circuit current measurement where the open circuit voltage between terminals and ground is greater than 60v dc or 3...
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Note : n the test leads can add 0.1w to 0.3w of error to the resistance measurement. To obtain precision readings in low-resistance, that is the range of 200w , short-circuit the input terminals beforehand and record the reading obtained (call this reading as x). (x) is the additional resistance fro...
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(figure 8) red black ~ w 1000v 750v max 200ma max fused 20a max fused cat. Ii 405 multimeter 20a m a ma com vw hz power auto power off true rms data hold tuv safety approved to iec1010 20m 20a 20m 20a a a 2 200m 200m 2m 200m 20m 2m 200k 20k 2k 200 2k 20k 200k 200m 2m 200m 200m 2 20 200 750 logic 20 ...
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To test a diode out of a circuit, connect the meter as follows : red black w 1000v 750v max 200ma max fused 20a max fused cat. Ii 405 multimeter 20a m a ma com vw hz power auto power off true rms data hold tuv safety approved to iec1010 20m 20a 20m 20a a a 2 200m 200m 2m 200m 20m 2m 200k 20k 2k 200 ...
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Maintenance warning to avoid false reading, replace the battery as soon as the battery indicator appears. To replace battery / fuse : n disconnect the connection between the testing leads and the circuit under test, and remove the testing leads away from the input terminals of the meter. N turn the ...
Page 16: Test Certificate
28 mumbai test certificate digital multimeter this test certificate warrantees that the product has been inspected and tested in accordance with the published specifications. The instrument has been calibrated by using equipment which has already been calibrated to standards traceable to national st...
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Warranty each “kusam-meco” product is warranted to be free from defects in material and workmanship under normal use & service. The warranty period is one year (12 months) and begins from the date of despatch of goods. In case any defect occurs in functioning of the instrument, under proper use, wit...