Keysight Technologies U3400 Series 41/2 and 51/2 Digit Digital Multimeters Data Sheet Basic + Good = Elegant Simplicity 02 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Simply right for your basic needs, without compromising quality The U3400 Series digital multimeters (DMMs) come with functions vital for your everyday measurements: DC, AC and AC+ DC voltage and current, 2- and 4-wire resistance, frequency, continuity and diode tests. Math functions dBm, Min/Max, Relative, Compare, Hold and Percentage** are also available to ease your measurement analysis. Not only are the U3400 Series built robust for lasting reliability over the long haul, these DMMs also ensure dependable measurements with up to 0.012% basic DCV accuracy. Efficient testing with dual display and selectable resolutions* Dual display on the U3400 Series lets you view two parameters simultaneously as you measure, and further enhances your troubleshooting tasks. For example, theability to see both AC voltage and frequency simultaneously would help you to measure the frequency response of amplifier circuits more efficiently and effectively. Refer to Page 3 for more typical dual display combinations and applications. Up to three measurement speeds are available on the U3402A: Slow, Medium and Fast. This means greater flexibility in catering to different testing needs: a faster measurement speed at lower resolution or a higher resolution at slower measurement speed. Physical security Your instruments may be at risk of theft or misplacement whenever you leave them unattended on the bench. With the U3400 Series' rear Kensington lock slot, you can secure your DMM and be assured that it is where you expect it to be for your continued testing the next day. Features -- Up to 120,000 counts resolution -- Up to 0.012% basic DCV accuracy -- 11 basic measurements and up to six built-in math functions -- Dual display on bright VFD -- Selectable resolutions for variable measurement speeds* -- Kensington lock slot security * U3402A only ** U3401A only 03 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Take a closer look Primary display Input terminals and current fuse Measurement function keypads Secondary display Autoranging, manual range and comparator operation Shift Math operation keypads Power on/off switch Figure 1 Front panel of the U3402A. The front panel of the U3401A is similar with slight differences in the position of certain functions. Please refer to the U3401A's User's and Service Guide U3401-90001 for details. AC line voltage selector AC power AC line fuse connector Line voltage fuse selection table Chassis ground lug Figure 2 Rear panel of the U3401A/U3402A. RS232 interface connector (For calibration use only) 04 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Typical dual display combinations and applications Primary display Secondary display DCV ACV Application -- Testing of DC-to-AC or AC-to-DC converter circuit Available in U3402A, U3401A ACV + DCV DCV -- Power supply DC level and AC ripple measurement U3402A, U3401A DCV DCI -- Testing of power supply load regulation U3402A DCV ACI -- Loop current and voltage drop level checking U3402A ACI + DCI DCV -- Testing of line and load regulation U3402A ACV DCI -- Testing of AC-to-DC or DC-to-AC converter U3402A ACI + DCI ACV -- Power supply DC level and AC ripple measurement U3402A ACV ACI -- Transformer testing U3402A ACV Hz -- Amplifier circuit's AC frequency response measurement U3402A, U3401A ACI Hz -- Adjustment of AC motor control U3402A, U3401A DCI ACI -- Power supply AC ripple and DC current measurement U3402A, U3401A ACI + DCI DCI -- Current dissipation measurement U3402A, U3401A dBm Reference W dBm DCV dBm ACV dBm Hz U3401A -- RF frequency measurement U3402A, U3401A U3402A, U3401A -- Frequency response checking U3402A 05 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet U3400 Series specifications DC voltage DCV resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C) Typical input impedance1 500.00 mV 10 V 510.00 0.02% + 4 10.0 MW 5.0000 V 100 V 5.1000 0.02% + 4 11.1 MW 50.000 V 1 mV 51.000 0.02% + 4 10.1 MW 500.00 V 10 mV 510.00 0.02% + 4 10.0 MW 1000.0 V 100 mV 1200.0 0.02% + 4 10.0 MW 2 1. Input impedance is in parallel with capacitance <100 pF. 2. In VDC 1000 V range, 1200 V is readable with audio warning. Rate Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C) Typical input impedance1 Slow 120.000 mV 1.20000 V 12.0000 V 120.000 V 1000.00 V 1 V 10 V 100 V 1 mV 10 mV 119.999 1.19999 11.9999 119.999 1000.00 3 0.012% + 82 10.0 MW 10.0 MW 11.1 MW 10.1 MW 10.0 MW 0.012% + 5 0.012% + 5 0.012% + 5 0.012% + 5 Medium 400.00 mV 4.0000 V 40.000 V 400.00 V 1000.0 V 10 V 100 V 1 mV 10 mV 100 mV 399.99 3.9999 39.999 399.99 1000.0 3 0.012% + 5 0.012% + 5 0.012% + 5 0.012% + 5 0.012% + 5 10.0 MW 11.1 MW 10.1 MW 10.0 MW 10.0 MW Fast 400.0 mV 4.000 V 40.00 V 400.0 V 1000 V 100 V 1 mV 10 mV 100 mV 1V 399.9 3.999 39.99 399.9 1000 3 0.012% + 2 0.012% + 2 0.012% + 2 0.012% + 2 0.012% + 2 10.0 MW 11.1 MW 10.1 MW 10.0 MW 10.0 MW 1. Input impedance is in parallel with capacitance <120 pF. 2. Relative (REL) operation is used. 3. In VDC 1000 V range, 1050 V is readable. 06 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet AC voltage (true RMS, AC coupling mode) ACV resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 30 Hz to 50 Hz 50 Hz to 10 kHz 10 kHz to 30 kHz 30 kHz to 100 kHz 500.00 mV 10 V 510.00 1% + 40 0.05% + 40 2% + 60 3% + 20 5.0000 V 100 V 5.1000 1% + 20 0.35% + 15 1% + 20 3% + 50 50.000 V 1 mV 51.000 1% + 20 0.35% + 15 1% + 20 3% + 50 500.00 V 10 mV 510.00 Not specified 0.5% + 15 1% + 20 2 3% + 50 2 750.0 V 100 mV 1000.0 Not specified 0.5% + 15 1% + 20 Not specified 3 2 1. Accuracy specified at input >5% of full scale. 2. Input voltage <200 V RMS. 3. For 5 kHz to 10 kHz, accuracy is 0.7% + 15. 4. In VAC 750 V range, 1000.0 V RMS is readable with audio warning. U3402A 5.5-digit DMM Rate Slow Range 120.000 mV 1.20000 V 12.0000 V 120.000 V 750.00 V Resolution 1 V 10 V 100 V 1 mV 10 mV Maximum reading Accuracy (1 year; 23 C 5 C)1 20 Hz to 45 Hz 45 Hz to 10 kHz 10 kHz to 30 kHz 30 kHz to 100 kHz 119.999 1.19999 11.9999 119.999 750.00 4 1% + 100 0.2% + 100 0.2% + 100 0.2% + 100 0.2% + 100 0.2% + 100 1.5% + 100 1% + 100 1% + 100 1% + 100 1% + 100 5% + 300 2 3% + 200 2 3% + 200 2 3% + 200 2 3% + 200 3 1% + 100 1% + 100 1% + 100 1% + 100 2 Medium 400.00 mV 4.0000 V 40.000 V 400.00 V 750.0 V 10 V 100 V 1 mV 10 mV 100 mV 399.99 3.9999 39.999 399.99 750.0 1% + 40 1% + 40 1% + 40 1% + 40 2 1% + 40 2 0.2% + 40 0.2% + 40 0.2% + 40 0.2% + 40 0.2% + 40 1.5% + 80 1% + 40 1% + 40 1% + 40 1% + 40 5% + 120 2 3% + 80 2 3% + 80 2 3% + 80 2 3% + 80 3 Fast 400.0 mV 4.000 V 40.00 V 400.0 V 750 V 100 V 1 mV 10 mV 100 mV 1V 399.9 3.999 39.99 399.9 750 1% + 5 1% + 5 1% + 5 1% + 5 2 1% + 5 2 0.2% + 5 0.2% + 5 0.2% + 5 0.2% + 5 0.2% + 5 1.5% + 10 1% + 5 1% + 5 1% + 5 1% + 5 5% + 15 2 3% + 10 2 3% + 10 2 3% + 10 2 3% + 10 3 1. Accuracy specified at input >5% of full scale. 2. Input voltage <200 V RMS. 3. Input voltage <500 V RMS. 4. In VAC 750 V range, 787.5 V RMS is readable. 07 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet AC voltage (true RMS, AC+DC coupling mode) AC+DC voltage resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 50 Hz to 10 kHz 10 kHz to 30 kHz 30 kHz to 100 kHz 500.00 mV 10 V 510.00 0.5% + 50 2% + 70 3% + 130 5.0000 V 100 V 5.1000 0.5% + 25 1% + 30 3% + 60 50.000 V 1 mV 51.000 0.5% + 25 1% + 30 500.00 V 10 mV 510.00 0.5% + 25 1% + 30 750.0 V 100 mV 1000.0 3 0.5% + 25 4 1% + 30 2 3% + 60 2 3% + 60 2 Not specified 1. Accuracy specified at input >5% of full scale. 2. Input voltage <200 V RMS. 3. In VAC 750 V range, 1000.0 V RMS is readable with audio warning. 4. For 5 kHz to 10 kHz, accuracy is 0.7% + 25. U3402A 5.5-digit DMM Rate Slow Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 45 Hz to 10 kHz 10 kHz to 30 kHz 30 kHz to 100 kHz 0.2% + 100 1.5% + 300 1% + 100 1% + 100 1% + 100 1% + 100 5% + 300 3% + 200 3% + 200 3% + 200 3% + 200 3 120.000 mV 1.20000 V 12.0000 V 120.000 V 750.00 V 1 V 10 V 100 V 1 mV 10 mV 119.999 1.19999 11.9999 119.999 750.000 2 Medium 400.00 mV 4.0000 V 40.000 V 400.00 V 750.0 V 10 V 100 V 1 mV 10 mV 100 mV 399.99 3.9999 39.999 399.99 750.00 0.2% + 45 0.2% + 43 0.2% + 43 0.2% + 43 0.2% + 43 1.5% + 83 1% + 43 1% + 43 1% + 43 1% + 43 5% + 125 3% + 83 3% + 83 3% + 83 3% + 83 3 Fast 400.0 mV 4.000 V 40.00 V 400.0 V 750 V 100 V 1 mV 10 mV 100 mV 1V 399.9 3.999 39.99 399.9 750.0 0.2% + 7 0.2% + 7 0.2% + 7 0.2% + 7 0.2% + 7 1.5% + 12 1% + 7 1% + 7 1% + 7 1% + 7 5% + 18 3% + 12 3% + 12 3% + 12 3% + 12 3 0.2% + 100 0.2% + 100 0.2% + 100 0.2% + 100 1. Accuracy specified at input >5% of full scale. 2. In VAC 750 V range, 787.5 V RMS is readable. 3. Input voltage <500 V RMS. 08 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet DC current DCI resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C) Burden voltage1 and shunt resistor 500.00 A 10 nA 510.00 0.05% + 5 <0.06 V/100 W 5.0000 mA 100 nA 5.1000 0.05% + 4 <0.6 V/100 W 50.000 mA 1 A 51.000 0.05% + 4 <0.08 V/1 W 500.00 mA 10 A 510.00 0.05% + 4 <0.8 V/1 W 5.0000 A 100 A 5.1000 0.25% + 5 <0.3 V/0.01 W 10.000 A 1 mA 20.000 2 0.25% + 5 <0.6 V/0.01 W 1. Typical at full-scale reading and voltage across the input terminals. 2. In 10 A range, >10 to 20 ADC is readable for 20 seconds maximum with audio warning. U3402A 5.5-digit DMM Rate Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C) Burden voltage1 and shunt resistor Slow 12.0000 mA 120.000 mA 1200.00 mA 12.0000 A 0.1 A 1 A 10 A 100 A 11.9999 119.999 1199.99 11.9999 0.05% + 15 2 <0.15 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W 0.05% + 5 0.2% + 5 0.2% + 5 Medium 40.000 mA 120.00 mA 1200.0 mA 12.000 A 1 A 10 A 100 A 1 mA 39.999 119.99 1199.9 11.999 0.1% + 6 0.1% + 3 0.2% + 3 0.2% + 3 <0.5 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W Fast 40.00 mA 120.0 mA 1200 mA 12.00 A 10 A 100 A 1 mA 10 mA 39.99 119.9 1199 11.99 0.1% + 2 0.1% + 2 0.2% + 2 0.2% + 2 <0.5 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W 1. Typical at full-scale reading and voltage across the input terminals. 2. Relative (REL) operation is used. 09 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet AC current (true RMS, AC coupling mode) ACI resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 30 Hz to 50 Hz 50 Hz to 2 kHz 2 kHz to 5 kHz 5 kHz to 20 kHz Burden voltage2 and shunt resistor 500.00 A 10 nA 510.00 1.5% + 50 0.5% + 20 1.5% + 50 3% + 75 3 <0.06 V/100 W 5.0000 mA 100 nA 5.1000 1.5% + 40 0.5% + 20 1.5% + 40 3% + 60 <0.6 V/100 W 50.000 mA 1 A 51.000 1.5% + 40 0.5% + 20 1.5% + 40 3% + 60 <0.08 V/1 W 500.00 mA 10 A 510.00 1.5% + 40 0.5% + 20 1.5% + 40 3% + 60 <0.8 V/1 W 5.0000 A 100 A 5.1000 2% + 40 4 0.5% + 20 Not specified Not specified <0.3 V/0.01 W 10.000 A 1 mA 20.000 5 2% + 40 4 0.5% + 30 (<1 kHz) Not specified Not specified <0.6 V/0.01 W 1. 2. 3. 4. 5. Accuracy specified at input >5% of full scale and >1 A for 10 A range unless otherwise stated. Typical at full-scale reading and voltage across the input terminals. Input current >35 A RMS. Input current <3 A RMS. In 10 A range, >10 to 20 ADC is readable for 20 seconds maximum with audio warning. U3402A 5.5-digit DMM Rate Slow Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 20 Hz to 45 Hz 45 Hz to 2 kHz 2 kHz to 10 kHz Burden voltage2 and shunt resistor 1.5% + 100 0.5% + 100 0.5% + 100 0.5% + 100 1% + 100 2% + 200 2% + 200 2% + 200 Not specified <0.15 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W 12.0000 mA 120.000 mA 1200.00 mA 12.0000 A 0.1 A 1 A 10 A 100 A 11.9999 119.999 1199.99 11.9999 Medium 40.000 mA 120.00 mA 1200.0 mA 12.000 A 1 A 10 A 100 A 1 mA 39.999 119.99 1199.9 11.999 1.5% + 40 1.5% + 12 1.5% + 12 1.5% + 12 (<1.2 A) 0.5% + 40 0.5% + 12 0.5% + 12 1% + 12 2% + 80 2% + 30 2% + 30 Not specified <0.5 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W Fast 40.00 mA 120.0 mA 1200 mA 12.00 A 10 A 100 A 1 mA 10 mA 39.99 119.9 1199 11.99 1.5% + 5 1.5% + 2 1.5% + 2 2% + 2 (<1.2 A) 0.5% + 5 0.5% +2 0.5% +2 1% +2 2% + 10 2.2% + 5 2.2% + 5 Not specified <0.5 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W 1.5% + 100 1.5% + 100 2% + 100 (<1.2 A) 1. Accuracy specified at input >5% of full scale. 2. Typical at full-scale reading and voltage across the input terminals. 10 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet AC current (true RMS, AC+DC coupling mode) AC+DC current resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 50 Hz to 2 kHz 2 kHz to 5 kHz 5 kHz to 20 kHz Burden voltage2 and shunt resistor 500.00 A 10 nA 510.00 0.5% + 30 1.5% + 60 3% + 85 3 <0.06 V/100 W 5.0000 mA 100 nA 5.1000 0.5% + 30 1.5% + 50 3% + 70 <0.6 V/100 W 50.000 mA 1 A 51.000 0.5% + 30 1.5% + 50 3% + 70 <0.08 V/1 W 500.00 mA 10 A 510.00 0.5% + 30 1.5% + 50 3% + 70 <0.8 V/1 W 5.0000 A 100 A 5.1000 0.5% + 30 Not specified Not specified <0.3 V/0.01 W 10.000 A 1 mA 20.000 0.5% + 40 (<1 kHz) Not specified Not specified <0.6 V/0.01 W 4 1. Accuracy specified at input >5% of full scale and >1 A for 10 A range unless otherwise stated. 2. Typical at full-scale reading and voltage across the input terminals. 3. Input current >35 A RMS. 4. In 10 A range, >10 to 20 ADC is readable for 20 seconds maximum with audio warning. U3402A 5.5-digit DMM Rate Slow Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 45 Hz to 2 kHz 2 kHz to 10 kHz Burden voltage2 and shunt resistor 0.5% + 100 2% + 200 2% + 200 2% + 200 Not specified <0.15 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W 12.0000 mA 120.000 mA 1200.00 mA 12.0000 A 0.1 A 1 A 10 A 100 A 11.9999 119.999 1199.99 11.9999 Medium 40.000 mA 120.00 mA 1200.0 mA 12.000 A 1 A 10 A 100 A 1 mA 39.999 119.99 1199.9 11.999 0.5% + 42 0.5% + 15 0.5% + 15 1% + 15 2% + 80 2% + 30 2% + 30 Not specified <0.5 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W Fast 40.00 mA 120.0 mA 1200 mA 12.00 A 10 A 100 A 1 mA 10 mA 39.99 119.9 1199 11.99 0.5% + 7 0.5% + 4 0.5% + 4 1% + 4 2% + 12 2% + 7 2% + 7 Not specified <0.5 V/10 W <1.5 V/10 W <0.3 V/0.1 W <0.6 V/0.01 W 0.5% + 100 0.5% + 100 1% + 100 1. Accuracy specified at input >5% of full scale. 2. Typical at full-scale reading and voltage across the input terminals. 11 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Resistance Resistance resolution, full scale reading, and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range1 Resolution Maximum reading Test current Accuracy (1 year; 23 C 5 C) 500.00 W 10 mW 510.00 0.5 mA 0.1% + 5 2 5.0000 kW 100 mW 5.1000 0.45 mA 0.1% + 32 50.000 kW 1W 51.000 45 A 0.1% + 3 500.00 kW 10 W 510.00 4.5 A 0.1% + 3 5.0000 MW 100 W 5.1000 450 nA 0.1% + 3 50.000 MW 1 kW 51.000 45 nA 0.3% + 3 1. To reduce noise interference that may be induced by the test leads, we recommend using a shielded test cable for measuring resistances above 500 kW. 2. Relative (REL) operation is used. U3402A 5.5-digit DMM Rate Range1 Resolution Maximum reading Test current Accuracy (1 year; 23 C 5 C) 2-wire 4-wire Slow 120.000 W 1.20000 kW 12.0000 kW 120.000 kW 1.20000 MW 12.0000 MW 120.000 MW 1 mW 10 mW 100 mW 1W 10 W 100 W 1 kW 119.999 1.19999 11.9999 119.999 1.19999 11.9999 119.999 0.5 mA 0.5 mA 100 A 10 A 1 A 100 nA 10 nA 0.1% + 82 0.08% + 52 0.06% + 52 0.06% + 5 0.06% + 5 0.3% + 5 3% + 8 0.05% + 82 0.05% + 5 2 0.05% + 5 0.05% + 5 0.05% + 5 0.3% + 5 3% + 8 Medium 400.00 W 4.0000 kW 40.000 kW 400.00 kW 4.0000 MW 40.000 MW 300.00 MW 10 mW 100 mW 1W 10 W 100 W 1 kW 10 kW 399.99 3.9999 39.999 399.99 3.9999 39.999 299.99 0.5 mA 100 A 50 A 5 A 500 nA 50 nA 10 nA 0.1% + 5 2 0.08% + 32 0.06% + 3 0.06% + 3 0.15% + 3 1.5% + 3 5.0% + 5 0.05% + 5 2 0.05% + 3 0.05% + 3 0.05% + 3 0.15% + 3 1.5% + 3 5.0% + 5 Fast 400.0 W 4.000 kW 40.00 kW 400.0 kW 4.000 MW 40.00 MW 300.0 MW 100 mW 1W 10 W 100 W 1 kW 10 kW 100 kW 399.9 3.999 39.99 399.9 3.999 39.99 299.9 0.5 mA 100 A 50 A 5 A 500 nA 50 nA 10 nA 0.1% + 2 2 0.08% + 2 0.06% + 2 0.06% + 2 0.15% + 2 1.5% + 2 5.0% + 2 0.05% + 2 0.05% + 2 0.05% + 2 0.05% + 2 0.15% + 2 1.5% + 2 5.0% + 2 1. To reduce noise interference that may be induced by the test leads, we recommend using a shielded test cable for measuring resistances above 100 kW. 2. Relative (REL) operation is used. 12 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Diode test/continuity U3401A 4.5-digit DMM Range Resolution Maximum reading Accuracy (1 year; 23 C 5 C) 2.3000 V 100 V 2.3000 V 0.05% + 5 U3402A 5.5-digit DMM Rate Resolution Maximum reading Accuracy (1 year; 23 C 5 C) Slow 1.19999 V 10.0000 V 0.012% + 5 Medium 2.4999 V 100.00 V 0.012% + 5 Fast 2.499 V 1.000 mV 0.012% + 2 Frequency Frequency resolution, full-scale reading and accuracy [ (% of reading + count)] U3401A 4.5-digit DMM Range Measurement range Resolution Maximum reading Accuracy (1 year; 23 C 5 C) 500.00 Hz 5 Hz to 500 Hz 0.01 Hz 510.00 0.01% + 5 5.0000 kHz 500 Hz to 5 kHz 0.1 Hz 5.1000 0.01% + 3 50.000 kHz 5 kHz to 50 kHz 1 Hz 51.000 0.01% + 3 500.00 kHz 50 kHz to 500 kHz 10 Hz 999.99 0.01% + 3 Range Input sensitivity for voltage measurement (sine-wave) 5 Hz to 100 kHz 100 kHz to 500 kHz 500 mV 35 mV RMS 200 mV RMS 5V 0.25 V RMS 0.5 V RMS 50 V 2.5 V RMS 5 V RMS 500 V 25 V RMS Not specified 750 V 50 V RMS Not specified U3402A 5.5-digit DMM Range Measurement range Resolution Maximum reading Accuracy (1 year; 23 C 5 C)1 Input sensitivity (sine wave) 1200.00 Hz 5 Hz to 1200 Hz 10 mHz 1199.99 0.005% + 3 40 mV RMS 12.0000 kHz 10 Hz to 12 kHz 100 mHz 11.9999 0.005% + 2 40 mV RMS 120.000 kHz 100 Hz to 120 kHz 1 Hz 119.999 0.005% + 2 40 mV RMS 1.0000 MHz 1 kHz to 1 MHz 10 Hz 1.1999 0.005% + 2 0.5 V RMS 1. Specified accuracy at input >5% of full scale. 13 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Decibel (dB) calculation Range and accuracy (dB) U3401A 4.5-digit DMM Voltage range1, 2 Input voltage dBm3 range at 600 W ref 30 Hz to 50 Hz 50 Hz to 10 kHz 10 kHz to 100 kHz 500.00 mV 20 mV to 500 mV -29.82 to -3.80 0.3 0.3 0.7 5.0000 V 5000 mV to 5 V -3.80 to 16.20 0.2 0.2 0.5 50.000 V 5 V to 50 V 16.20 to 36.20 0.2 0.2 0.5 500.00 V 50 V to 500 V 36.20 to 56.20 0.2 1000.0 VDC 500 V to 1000 V 56.20 to 62.22 Not specified 750.0 VAC 500 V to 750 V 56.20 to 59.72 Not specified 1. 2. 3. 4. 5. Accuracy (1 year; 23 C 5 C) 4 0.2 0.5 4 0.2 5 Not specified 0.2 5 Not specified Auto ranging is used when dBm operation is selected. In VDC 1000 V range, 1200 V is readable. In VAC 750 V range, 1000 V is readable. Reading is displayed in dB when relative (REL) operation is used. Input voltage <200 V RMS. For input voltage within the frequency range of 50 Hz to 1 kHz. U3402A 5.5-digit DMM Rate Slow Voltage range 1, 2 120.000 mV 1.20000 V 12.0000 V 120.000 V 1000.00 VDC 750.00 V Input voltage 6 mV to 120 mV 120 mV to 1.2 V 1.2 V to 12 V 12 V to 120 V 120 V to 1000 V 120 V to 750 V dBm3 range at 600 W ref Accuracy (1 year; 23 C 5 C) 20 Hz to 45 Hz 45 Hz to 10 kHz 10 kHz to 100 kHz -42.20 to -16.20 -16.20 to 3.80 3.80 to 23.80 23.80 to 43.80 43.80 to 62.22 43.80 to 59.72 1.0 0.2 0.1 0.1 0.1 1.0 4 1.0 4 1.0 0.8 0.8 0.8 Not specified Not specified 0.8 0.8 0.8 Not specified Not specified Medium 400.00 mV 4.0000 V 40.000 V 400.00 V 1000.0 VDC 750.0 V 20 mV to 400 mV 400 mV to 4 V 4 V to 40 V 40 V to 400 V 400 V to 1000 V 400 V to 750 V -31.76 to -5.74 -5.74 to 14.26 14.26 to 34.26 34.26 to 54.26 54.26 to 62.22 54.26 to 59.72 1.0 0.8 0.8 0.8 Not specified Not specified 0.2 0.1 0.1 0.1 1.0 4 1.0 4 1.0 0.8 0.8 0.8 Not specified Not specified Fast 400.0 mV 20 mV to 400 mV 400 mV to 4 V 4 V to 40 V 40 V to 400 V 400 V to 1000 V 400 V to 750 V -31.76 to -5.74 -5.74 to 14.26 14.26 to 34.26 34.26 to 54.26 54.26 to 62.22 54.26 to 59.72 1.0 0.8 0.8 0.8 Not specified Not specified 0.2 0.1 0.1 0.1 1.0 4 1.0 4 1.0 0.8 0.8 0.8 Not specified Not specified 4.000 V 40.00 V 400.0 V 1000 VDC 750 V 1. Auto ranging is used when dBm operation is selected. 2. In VAC 750 V range, 5% over-range is readable. 3. Reading is displayed in dB when relative (REL) operation is used. 4. For input voltage within the frequency range of 45 Hz to 1 kHz. 14 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Supplemental specifications Full-scale display counts Model Reading rate Display counts U3401A N/A 51,000 U3402A Slow 120,000 Medium 40,000 Fast 4,000 Supplemental measurement specifications Measurement DC voltage DC current Specification Measurement method Sigma Delta A-to-D converter Input resistance 10 MW 2% range (typical) Maximum input voltage 1000 VDC or PEAK AC on all ranges Input protection 1000 V on all ranges Response time Approximately 1.0 second when the displayed reading reaches 99.9% DC value of the tested input signal at the same range Shunt resistance U3401A -- 0.01 W to 100 W for 500 A to 10 A ranges U3402A -- 0.1 W to 10 W for 12 mA to 1.2 A ranges -- 0.01 W for 12 A range AC voltage Maximum input and overload protection (U3402A only) mA input terminal: 1200 mADC or AC RMS. Protected with 1.25 A/500 V, IEC-127 sheet, FB fuse 12 A input terminal: 10 ADC or AC RMS continuous; or 12 ADC or AC RMS for 30 seconds maximum. Protected with 15 A/600 V, breaking capacity 10,000 A FB fuse Response time Approximately 1.0 second when the displayed reading reaches 99.9% DC value of the tested input signal at the same range Measurement method AC-coupled true RMS: measures the AC component with up to 400 VDC bias on any range Crest factor Maximum 3:0 at full scale Input impedance U3401A: 1 MW in parallel with <100 pF U3402A: 1 MW 2% in parallel with <120 pF Maximum input voltage U3401A: 1000 V RMS/1400 V PEAK U3402A: 750 V RMS/1200 V PEAK 2x10 7 V-Hz product on any range, normal mode input 1x10 6 V-Hz product on any range, common mode input Overload ranging Selects higher range if peak input overload is detected during auto range. Overload is reported in manual ranging Input protection U3401A: 1000 V RMS on all ranges U3402A: 750 V RMS on all ranges Response time Approximately 1.5 seconds when the displayed reading reaches 99.9% AC RMS value of the tested input signal at the same range. 15 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Supplemental measurement specifications (continued) Measurement AC+DC voltage AC current Specification Measurement method AC+DC coupled true RMS: measures the AC component with up to 400 VDC bias on any range Crest factor Maximum 3:0 at full scale Input impedance U3401A: 1 MW in parallel with <100 pF U3402A: 1 MW 2% in parallel with <120 pF Maximum input voltage U3401A: 1000 V RMS/1400 V PEAK U3402A: 750 V RMS/1100 V PEAK 2x10 7 V-Hz product on any range, normal mode input 1x10 6 V-Hz product on any range, common mode input Overload ranging Selects higher range if peak input overload is detected during auto range. Overload is reported in manual ranging Input protection U3401A: 1000 V RMS on all ranges U3402A: 750 V RMS on all ranges Response time Approximately 1.5 seconds (2.5 seconds for U3402A) when the displayed reading reaches 99.9% AC RMS value of the tested input signal at the same range Measurement method DC coupled to the fuse and current shunt, AC coupled true rms measurement (measures the AC component only) Crest factor Maximum 3:0 at full scale Shunt resistance U3401A -- 0.01 W to 100 W for 500 A to 10 A ranges U3402A -- 0.1 W to 10 W for 10 mA to 1.2 A ranges -- 0.01 W for 12 A range Input protection U3401A Front panel fuse 630 mA, 500 V; internal 25 A, 440 V U3402A mA input terminal: 1200 mADC or AC RMS. Protected with 1.25 A/500 V, IEC-127 sheet, FH fuse 12 A input terminal: 10 ADC or AC RMS continuous; or 12 ADC or AC RMS for 30 seconds maximum. Protected with 15 A/600 V, breaking capacity 10,000 A FH fuse AC+DC current Resistance Response time Approximately 1.5 seconds when the displayed reading reaches 99.9% AC RMS value of the tested input signal at the same range Measurement method AC+DC coupled to the fuse and current shunt, AC+DC coupled true rms measurement (measures the AC component only) Crest factor Maximum 3:0 at full scale Measurement range Vdc and Vac are automatically set at the same range Response time Approximately 1.5 seconds when the displayed reading reaches 99.9% AC RMS value of the tested input signal at the same range Measurement method U3401A: 2-wire ohms U3402A: 2-wire ohms or 4-wire ohms Open-circuit voltage U3401A: Limited to <+6 VDC U3402A: Limited to <+5 VDC Zeroing error 0.05 W or less (excluding test lead resistance) in each range when Relative operation is used 16 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Supplemental measurement specifications (continued) Measurement Resistance Specification Input protection 500 V Response time U3401A -- Approximately 1.5 seconds for 5 MW and ranges below 5 MW U3402A -- Approximately 1.5 seconds for 12 MW and ranges below 12 MW -- Approximately 5 seconds for 40 MW -- Approximately 10 seconds for 120 MW -- Approximately 23 seconds for 300 MW Diode/ Continuity Resistance/ Continuity (U3402A only) Frequency Noise rejection Measurement method U3401A: 0.5mA +/- 0.2% constant current source, open circuit voltage limited to <6V. U3402A: 0.5mA +/- 0.2% constant current source, open circuit voltage limited to <5V. Test current Approximately 0.5 mADC Open-circuit voltage U3401A: Limited to <+6 VDC U3402A: Limited to <+5 VDC Continuity threshold 10 W fixed Continuity level Approximately <+50 mVDC Audible tone Continuous beep for continuity and single tone for normal forward-biased diode or semiconductor junction Input protection 500 V Measurement method 2-wire ohms Test current Approximately 0.5 mADC Open-circuit voltage Limited to <+5 VDC Audible tone Continuous beep for continuity and single tone for normal forward-biased diode or semiconductor junction Zeroing error 0.05 W or less (excluding test lead resistances) in each range when Relative operation is used Input protection 500 V Measurement method Reciprocal counting technique. AC coupled input using AC voltage function Crest factor Maximum 3:0 at full scale Signal level 10% of range to full-scale input on all ranges; auto or manual range selection Gate time 0.1 second or 1 period of the input signal, whichever is longer Input impedance U3401A: 1 MW in parallel with <100 pF U3402A: 1 MW 2% in parallel with <120 pF Maximum input voltage U3401A: 1000 V RMS/1400 V PEAK U3402A: 750 V RMS/1100 V PEAK 2x10 7 V-Hz product on any range, normal mode input 1x10 6 V-Hz product on any range, common mode input Input protection 750 V RMS on all ranges Response time Approximately 1.5 seconds when the displayed reading reaches 99.9% of frequency value Common mode rejection ratio (CMRR) for 1 kW unbalanced LO lead 50/60 Hz 0.1%: DC >90 dB Normal mode rejection ratio (NMRR) 50/60 Hz 0.1%: >50 dB 17 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Supplemental measurement specifications (continued) Measurement dBm operation Specification 0 dBm 1 mW at 600 W reference impedance Resolution U3401A 0.01 dB for all ranges U3402A Slow: 0.01 dB for all ranges Medium: 0.01 dB for all ranges Fast: 0.1 dB for all ranges Reference impedance1 2 W 2, 4 W 2, 8 W 2, 16 W 2, 50 W, 75 W, 93 W, 110 W, 124 W, 125 W, 135 W, 150 W, 250 W, 300 W, 500 W, 600 W, 800 W, 900 W, 1000 W, 1200 W, 8000 W Math operation U3401A: dBm, Relative, Min/Max, Compare, Hold, Percentage U3402A: dBm, Relative, Min/Max, Compare, Hold I/O interface RS-232 (for calibration use only) 1. Reference impedance is displayed on the secondary display. 2. Reading is displayed in watts (audio power). 18 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet General characteristics Power supply -- 100 V/120 V/220 V/240 V 10% -- AC line frequency 50 Hz to 60 Hz Power consumption 16 VA maximum Input power option Manual-ranging (100 VAC to 240 VAC 10%) Fuse U3401A Terminal: 25 A, 440 V FB fuse; 0.63 A, 500 V FB fuse Power line: 0.25 A, 250 V SB fuse, or 0.125 A, 250 V SB fuse U3402A Terminal: 15 A, 600 V FB fuse; 1.25 A, 500 V FB fuse Power line: 0.25 A, 250 V SB fuse, or 0.125 A, 250 V SB fuse Display Highly visible vacuum fluorescent display (VFD) Operating environment -- Operating temperature from 0 C to +50 C -- Relative humidity up to 80% at 28 C RH -- (non-condensing) -- Altitude up to 2000 meters -- Pollution degree 2 -- For indoor use only Storage compliance -- -20 C to 60 C -- Relative humidity at 5% to 90% RH -- (non-condensing) Safety compliance -- IEC 61010-1:2001/EN61010-1:2001 -- (2nd Edition) -- Canada: CAN/CSA-C22.2 No. 610101-04 -- USA: ANSI/UL 61010-1:2004 EMC compliance -- IEC 61326-1:2005/EN61326-1:2006 -- Canada: ICES/NMB-001:2004 -- Australia/New Zealand: AS/NZS -- CISPR11:2004 Shock and vibration Tested to IEC/EN 60068-2 I/O connector Output connectors I/O interface RS-232 (for calibration use only) Dimensions (W x H x D) 255 mm x 105 mm x 305 mm (with bumpers) 215 mm x 87 mm x 282 mm (without bumpers) Weight 3.44 kg (with bumpers) Warranty Three years for U3401A/U3402A Three months for standard shipped accessories Calibration cycle One year Warm-up time At least 30 minutes 19 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet Ordering Information Each U3400 Series includes these standard shipped accessories: -- Quick Start Guide -- Product Reference CD -- Certificate of Calibration -- 34138A Test Lead Kit -- AC Power Cord Accessories 34138A Test Lead Kit U1161A E x tended Test Lead Kit 34330A Curr ent Shunt (30 A) 34133A Pr ecision Electronic Test L eads 11059A Kelvin Probe Set U3400A-1CM Rack Mount Kit 20 | Keysight | U3400 Series 41/2 and 51/2 Digit Digital Multimeters - Data Sheet myKeysight www.keysight.com/find/mykeysight A personalized view into the information most relevant to you. www.axiestandard.org AdvancedTCA(R) Extensions for Instrumentation and Test (AXIe) is an open standard that extends the AdvancedTCA for general purpose and semiconductor test. Keysight is a founding member of the AXIe consortium. ATCA(R), AdvancedTCA(R), and the ATCA logo are registered US trademarks of the PCI Industrial Computer Manufacturers Group. www.lxistandard.org LAN eXtensions for Instruments puts the power of Ethernet and the Web inside your test systems. Keysight is a founding member of the LXI consortium. www.pxisa.org PCI eXtensions for Instrumentation (PXI) modular instrumentation delivers a rugged, PC-based high-performance measurement and automation system. Three-Year Warranty www.keysight.com/find/ThreeYearWarranty Keysight's commitment to superior product quality and lower total cost of ownership. The only test and measurement company with three-year warranty standard on all instruments, worldwide. Keysight Assurance Plans www.keysight.com/find/AssurancePlans Up to five years of protection and no budgetary surprises to ensure your instruments are operating to specification so you can rely on accurate measurements. www.keysight.com/go/quality Keysight Technologies, Inc. DEKRA Certified ISO 9001:2008 Quality Management System Keysight Channel Partners www.keysight.com/find/channelpartners Get the best of both worlds: Keysight's measurement expertise and product breadth, combined with channel partner convenience. www.keysight.com/find/low-cost-dmm For more information on Keysight Technologies' products, applications or services, please contact your local Keysight office. The complete list is available at: www.keysight.com/find/contactus Americas Canada Brazil Mexico United States (877) 894 4414 55 11 3351 7010 001 800 254 2440 (800) 829 4444 Asia Pacific Australia China Hong Kong India Japan Korea Malaysia Singapore Taiwan Other AP Countries 1 800 629 485 800 810 0189 800 938 693 1 800 112 929 0120 (421) 345 080 769 0800 1 800 888 848 1 800 375 8100 0800 047 866 (65) 6375 8100 Europe & Middle East Austria Belgium Finland France Germany Ireland Israel Italy Luxembourg Netherlands Russia Spain Sweden Switzerland United Kingdom 0800 001122 0800 58580 0800 523252 0805 980333 0800 6270999 1800 832700 1 809 343051 800 599100 +32 800 58580 0800 0233200 8800 5009286 0800 000154 0200 882255 0800 805353 Opt. 1 (DE) Opt. 2 (FR) Opt. 3 (IT) 0800 0260637 For other unlisted countries: www.keysight.com/find/contactus (BP-09-04-14) Some of the best equations express large ideas with elegant simplicity. The same is true with the Keysight Technologies, Inc. U3401A and U3402A dual-display DMMs. When you need basic capabilities with good performance at 41/2 or 51/2 digits, respectively, these affordable benchtop units make the grade in educational, electronics and communications applications. For extra credit, they also include a PC-grade lock slot for physical security. The U3400 Series: basic, good capability in an elegantly simple DMM. This information is subject to change without notice. (c) Keysight Technologies, 2010 - 2014 Published in USA, July 31, 2014 5990-3970EN www.keysight.com