U1241A Datasheet, PDF (3/6 Pages) Agilent(Hewlett-Packard) – U1241A/U1242A Handheld Digital Multimeter

DC SPECIFICATIONS
FUNCTION
RANGE
VOLTAGE^[1]
CURRENT
RESISTANCE^[4]
DIODE TEST^[7]
1000.0 mV
10.000 V
100.00 V
1000.0 V
1000.0 µA
10000 µA
100.00 mA
440.0 mA^[2]
10.000 A^[3]
1000.0 W^[5]
10.000 kW^[5]
100.00 kW
1000.0 kW
10.000 MW
100.00 MW^[6]
1V
AC SPECIFICATIONS
FUNCTION
RANGE
AC VOLTAGE^[8]
TRUE RMS
AC Current^[9]
TRUE RMS
1000.0 mV
10.000 V
100.00 V
1000.0 V
1000.0 µA
10000 µA
100.00 mA
440.0 mA^[10]
10.000 A^[11]
RESOLUTION
0.1 mV
0.001 V
0.01 V
0.1 V
0.1 µA
1 µA
0.01 mA
0.1 mA
0.001 A
0.1 W
0.001 kW
0.01 kW
0.1 kW
0.001 MW
0.01 MW
0.001 V
TEST CURRENT/
BURDEN VOLTAGE
ACCURACY ± (% of reading + No. of Least Significant Digit)
U1241A
U1242A
–
0.09% + 5
–
0.09% + 2
–
–
0.15% + 5
< 0.06 V (50 W)
0.1% + 3
< 0.55 V (50 W)
0.1% + 3
< 0.18 V (0.5 W)
0.2% + 3
< 0.8 V (0.5 W)
0.5% + 3
< 0.4 V (0.01 W)
0.6% + 5
0.5 mA
0.3% + 3
50 µA
4.91 µA
447 nA
112 nA
0.8% + 3
112 nA
1.5% + 3
approximately 0.5 mA
0.3% + 2
RESOLUTION
0.1 mV
0.001 V
0.01 V
0.1 V
0.1 µA
1 µA
0.01 mA
0.1 mA
0.001 A
TEST CURRENT/
BURDEN VOLTAGE
–
–
–
–
< 0.06 V (50 W)
< 0.55 V (50 W)
< 0.18 V (0.5 W)
< 0.8 V (0.5 W)
< 0.4 V (0.01 W)
ACCURACY ± (% of reading + No. of Least Significant Digit)
40 Hz to 500 Hz 500 Hz to 1 kHz
1 kHz to 2 kHz
2% + 5
–
1% + 5
1% + 5
2% + 5
–
1% + 5
1.5% + 5
–
[1] Input impedance: 10 MW (nominal).
[2] Current can be measured up to 440 mA continuously. An additional 0.2% needs to be added to the specified 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 the 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 specified 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 kW and 10 kW is specified after Null function, which is used to substrate the test lead resistance and the thermal effect.
[6] For the range of 100 MW, the R.H. is specified for < 60%. The temperature coefficient will be 0.15 times of specified accuracy as > 50 MW.
[7] Overload protection: 1000 V RMS for circuits < 0.3 A short circuit current. The built-in buzzer sounds when reading is approximately 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 MW (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 specified 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 the 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
specified 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.
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