Technical data

2 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide
1 Specifications
Product Specifications
DC specifications
[1]
Table 1 - 1 DC accuracy ±
Function Range Input
impedance
Test current
/Burden voltage,
shunt resistance
Accuracy
(% of reading +
%of range)
Temperature
coefficient
0
°C to 18 °C
28 °C to 55 °C
Voltage
[2]
100.000 mV 10 MΩ – 0.015 + 0.008 0.002 + 0.0008
1.00000 V 10 MΩ – 0.015 + 0.005 0.001 + 0.0005
10.0000 V 10 MΩ – 0.018 + 0.005 0.002 + 0.0005
100.000 V 10 MΩ – 0.018 + 0.005 0.002 + 0.0005
300.000 V 10 MΩ – 0.018 + 0.005 0.0015 + 0.0005
Current
[3]
10.0000 mA – <0.2 V, 10 Ω 0.06 + 0.015 0.005 + 0.0025
100.000 mA – <0.2 V, 1 Ω 0.06 + 0.005 0.008 + 0.002
1.00000 A – <0.3 V, 0.1 Ω 0.15 + 0.007 0.005 + 0.002
2.00000 A – <0.8 V, 0.1 Ω 0.15 + 0.007 0.005 + 0.002
Resistance
[4]
100.000 Ω – 1.0 mA 0.03 + 0.008 0.006 + 0.0008
1.00000 kΩ – 1.0 mA 0.03 + 0.005 0.006 + 0.0005
10.0000 kΩ –100 μA 0.03 + 0.005 0.006 + 0.0005
100.000 kΩ – 10.0 μA 0.03 + 0.005 0.006 + 0.0005
1.00000 MΩ –1 μA 0.06 + 0.005 0.01 + 0.0005
10.0000 MΩ – 225 nA 0.25 + 0.005 0.025 +0.0005
100.000 MΩ – 225 nA 2.0 + 0.005 0.3 + 0.0005
Diode test
[5]
1.0000 V – 1.00 mA 0.015 + 0.03 0.005 + 0.0005
Continuity Test
[6]
1.0000 kΩ – 1.00 mA 0.05 + 0.03 0.005 + 0.0005