agilent U1241A/u1242a handheld digital multimeter data sheet
2 key features check more, ? x more ? 10,000 count display ? 0.09% basic dcv accuracy ? true rms ac measurement ? basic functions acv, dcv, aci, dci, resistance, frequency, diode, continuity test ? advanced functions capacitance, temperature, minmax recording ease of use ? adjustable backlighting 2 intensity levels ? manual data logging (u1242a only) ? built-in switch counter, harmonic ratio (u1242a only), dual/differential temperatures capabilities (u1242a only) built to last ? overmold body casing ? cat iii 1000 v safety protection ? certi? ed to ce, ul, csa standard ? operating temperature: C10 o c to 55 c introduction the agilent u1240a series handheld digital multimeters enable you to check more with wide measurement ranges. they feature true rms readings on its 10,000 counts display. the adjustable backlighting allows you to complete your jobs even in subdued lighting conditions, at the same time prolonging the bat- tery life. your maintenance tasks are greatly simpli? ed with its built-in switch counter, harmonic ratio, dual temperature and differential temperature capabili- ties, with just a press of the button. the meters have high safety rating with cat iii 1000 v protection and certi? ed to ce, csa and ul standards. better yet, the u1240a series comes with certi? cate of calibration and test report C at no extra cost. diode test switch counter dcv/acv : 0.1 mv to 1000 v harmonic ratio (u1242a only) backlight: 2 intensity levels resistance : 0.1 to 100 m ac a : 0.1 a to 10 ma capacitance : 0.1 nf to 10 mf ambient temperature ac m a : 0.01 ma to 1000 ma aca : 0.01 a to 10 a frequency : 0.01 hz to 100 khz minmax recording t1Ct2 differential temperature (u1242a only) temperature : C40 o c to 1000 o c functions and ranges at a glance manual data logging (u1242a only)
3 function range resolution test current/ burden voltage accuracy (% of reading + no. of least signi? cant digit) U1241A u1242a voltage [1] 1000.0 mv 0.1 mv C 0.09% + 5 10.000 v 0.001 v C 0.09% + 2 100.00 v 0.01 v C 1000.0 v 0.1 v C 0.15% + 5 current 1000.0 a 0.1 a < 0.06 v (50 w ) 0.1% + 3 10000 a 1 a < 0.55 v (50 w ) 0.1% + 3 100.00 ma 0.01 ma < 0.18 v (0.5 w ) 0.2% + 3 440.0 ma [2] 0.1 ma < 0.8 v (0.5 w ) 0.5% + 3 10.000 a [3] 0.001 a < 0.4 v (0.01 w ) 0.6% + 5 resistance [4] 1000.0 w [5] 0.1 w 0.5 ma 0.3% + 3 10.000 k w [5] 0.001 k w 50 a 100.00 k w 0.01 k w 4.91 a 1000.0 k w 0.1 k w 447 na 10.000 m w 0.001 m w 112 na 0.8% + 3 100.00 m w [6] 0.01 m w 112 na 1.5% + 3 diode test [7] 1 v 0.001 v approximately 0.5 ma 0.3% + 2 dc specifications [1] input impedance: 10 m w (nominal). [2] current can be measured up to 440 ma continuously. an additional 0.2% needs to be added to the speci? ed accuracy if the signal measured is in the range of 440 ma to 1100 ma for 30 seconds maximum. after measuring current of > 440 ma, leave the meter to cool down for twice t he measuring time used before application of low current measurement. [3] current can be measured up to 10 a continuously with the maximum operating temperature of 50 c. an additional 0.3% needs to be added to the speci? ed accuracy if the signal measured is in the range of 10 a to 19.999 a for 15 seconds maximum. after measuring a current of > 10 a, leave the meter to cool down for 60 seconds before applying low current measurement. [4] the maximum open voltage is < 2.8 v. for instant continuity, the built-in buzzer sounds when resistance is < 10.0 w . [5] the accuracy of 1 k w and 10 k w is speci? ed after null function, which is used to substrate the test lead resistance and the thermal effect. [6] for the range of 100 m w , the r.h. is speci? ed for < 60%. the temperature coef? cient will be 0.15 times of speci? ed accuracy as > 50 m w . [7] overload protection: 1000 v rms for circuits < 0.3 a short circuit current. the built-in buzzer sounds when reading is ap proximately below 50 mv and audible single tone for normal forward biased diode or semiconductor junction as 0.3 v reading 0.8 v. [8] input impedance: 10 m w (nominal) in parallel with <100 pf, with overload protection of 1000 v rms [9] crest factor 3. for non-sinusoidal waveforms with crest factor up to 3, add 2% reading + 2% full scale typical. [10] current can be measured from 50 ma to 440 ma continuously. an additional 0.2% needs to be added to the speci? ed accuracy if the signal measured is in the range of 440 ma to 1100 ma for 30 seconds maximum. after measuring current of > 440 ma, leave the meter to cool down for twice t he measuring time used before application of low current measurement. [11] current can be measured from 0.5 a up to 10 a continuously with the maximum operating temperature of 50 c. an additional 0.3% needs to be added to the speci? ed accuracy if the signal measured is in the range of 10 a to 19.999 a for 15 seconds maximum. after measuring a current of >10 a, leave the meter to cool down for 60 seconds before applying low current measurement. ac specifications function range resolution test current/ burden voltage accuracy (% of reading + no. of least signi? cant digit) 40 hz to 500 hz 500 hz to 1 khz 1 khz to 2 khz ac voltage [8] true rms 1000.0 mv 0.1 mv C 1% + 5 2% + 5 C 10.000 v 0.001 v C 1% + 5 2% + 5 100.00 v 0.01 v C 1000.0 v 0.1 v C C ac current [9] true rms 1000.0 a 0.1 a < 0.06 v (50 w ) 1% + 5 1.5% + 5 C 10000 a 1 a < 0.55 v (50 w ) 100.00 ma 0.01 ma < 0.18 v (0.5 w ) 440.0 ma [10] 0.1 ma < 0.8 v (0.5 w ) 10.000 a [11] 0.001 a < 0.4 v (0.01 w )
4 thermocouple type range resolution accuracy (% of reading + offset error) k (for U1241A and u1242a) C40 to 1000 oc/ C48 to 1832 of 0.1 oc/ 0.1 of 1% + 1 oc/ 1% + 1.8 of j (for u1242a only) C40 to 1000 oc/ C48 to 1832 of 0.1 oc/ 0.1 of 1% + 1 oc/ 1% + 1.8 of temperature specifications capacitance specifications range resolution accuracy (% of reading + no. of least signi? cant digit) 1000.0 nf 0.1 nf 1.2% + 4 10.000 f 0.001 f 100.00 f 0.01 f 1000.0 f 0.1 f 2% + 4 10.000 mf 0.001 mf harmonic ratio specifications range frequency voltage 0.0% to 99.9% 40 hz to 500 hz 100 mvac to 1000 vac range resolution accuracy minimum input frequency 100.00 hz 0.01 hz 0.03%+3 1 hz 1000.0 hz 0.1 hz 10.000 khz 0.001 khz 100.00 khz 0.01 khz 1000.00 khz 0.1 khz frequency specifications frequency sensitivity during voltage measurement input range minimum sensitivity (rms sine-wave) (maximum input for speci? ed accuracy = 10 x range or 1000 v) 20 hz - 50 khz 50 khz to 200 khz 1000.0 mv 0.3 v 0.6 v 10.000 v 0.5 v 1.8 v 100.00 v 5 v 10 v (<100 khz) 1000.0 v 50 v 100 v (<100 khz) frequency sensitivity during current measurement input range minimum sensitivity (rms sine wave) 20 hz to 20 khz 1000.0 a 100 a 10000 a 500 a 100.00 ma 10 ma 440.00 ma 50 ma 10.000 a 1 a function times/second acv 7 dcv (v or mv) 7 w 14 diode 14 capacitance 4 (< 100 f) dca ( a, ma, a) 7 aca ( a, ma, a) 7 temperature 7 (single) frequency 1 (> 10 hz) operating measuring rate
5 power supply 4 single standard 1.5 v aaa batteries (alkaline or zinc chloride type) display dual display (secondary display is cater for temperature function display only) are 4-digit liquid crystal display (lcd) with maximum reading of 11,000 counts. automatic polarity indication. power consumption 0.22 va maximum operating environment full accuracy at C10 o c to 55 o c full accuracy to 80% rh for temperature up to 30 o c, decreasing linearly to 50% rh at 55 o c storage compliance C20 o c to 70 o c altitude 0 C 2000 meters per iec 61010-1 2 nd edition cat iii, 1000 v safety compliance ? iec 61010-1:2001 / en61010-1:2001 ? usa: ul 61010-1:2004 ? canada: csa c22.2 no. 61010-1:2004 measurement category cat iii 1000 v overvoltage protection, pollution degree 2 emc compliance ? certi? ed to iec 61326:2002/en 61326: 2003 ? cispr 11:1990/en55011:1990 ? canada: ices-001:2004 ? australia/new zealand: as/nzs cispr11:2004 common mode rejection ratio (cmrr) > 90 db at dc, 50/60 hz 0.1% (1k unbalanced) normal mode rejection ratio (nmrr) > 60 db at 50/60 hz 0.1% crest factor < 3.0 temperature coefficient 0.1 (speci? ed accuracy) / c (from C10 c to 18 c or 28 c to 55 c) shock and vibration tested to iec/en 60068-2 dimension (hxwxd) 193.8 mm x 92.2 mm x 58.0 mm weight 450 g with batteries 400 g without batteries warranty 3 years general specifications accessories included: ? four 1.5 v aaa alkaline batteries ? certi? cate of calibration (coc) ? test leads ? quick start guide ? product reference cd optional accessories (sold separately): ? u1162a alligator clips ? u1163a smt grabbers ? u1164a fine tip test probe ? u1181a immersion probe (measures food, oil, and other liquids temperature within the range of -50 c to 700 c) ? u1182a industrial surface probe (measures still surface tem perature within the range of -50 c and 400 c) ? u1183a air probe (measures dryer, transport pipe and surrounding air temperature within the range of -50 c to 800 c) ? u1184a temperature probe adapter ? u1185a thermocouple (j-type) probe and adapter ? u1186a thermocouple (k-type) probe and adapter ? u1583a ac current clamp (extend current measurement range up to 400 a) dimension 92 193.8
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