• 12 measurement functions
• 1000 V maximum input
• 15 ppm basic, dV accuracy (24 hour)
• 1000 readings per second direct to HP-IB
• HP-IB and RS-232 standard
• 512-reading memory
• SCPI commands standard

SPECIFICATIONS

DC VOLTAGE

• Input Characteristics

  Range	Maximum Reading (6½ digits)	Resolution in digits - 6½	Input Resistance
  100 mV	120.0000	100 nV	10 Mohm or > 10 Gohm
  1V	1.200000	1 µV	10 Mohm or > 10 Gohm
  10 V	12.00000	10 µV	10 Mohm or > 10 Gohm
  100 V	120.0000	100 µV	10 Mohm
  1000 V	1050.000	1 mV	10 Mohm

• Measurement Accuracy: ± (% or reading + % of range)

  Range	1-Year 23° C ±5° C
  100 mV	0.0050 + 0.0035
  1 V	0.0040 + 0.0007
  10 V	0.0035 + 0.0005
  100 V	0.0045 + 0.0006
  1000 V	0.0045 + 0.0010

AC VOLTAGE (true rms)

• Measurement Accuracy: ± (%of reading + % of range); 1 year, 23° C ± 5° C

  Frequency	Ranges 100 mV	Ranges 1, 10, 100 750 V
  3 to 5 Hz	1.00 + 0.04	1.00 + 0.03
  5 to 10 Hz	0.35 + 0.04	0.35 + 0.03
  10 Hz to 20 kHz	0.05 + 0.04	0.06 + 0.03
  20 to 50 kHz	0.12 + 0.04	0.12 + 0.05
  50 to 100 kHz	0.60 + 0.08	0.60 + 0.08
  100 to 300 kHz	4.00 + 0.50	4.00 + 0.50

• Input Resistance: 1 MW ±2%, in parallel with 100 pf

Frequency and Period

• Range: 3 Hz to 300 kHz (333 ms to 3.33 µs)
• Resolution: 10 µHz to 1 Hz
• Other Measurement Functions: Continuity, Diode Test, Ratio dc: dc, Limit Test
• Math Functions: NULL, Min/Max/Avg, dB, dBm, Limit Test
• Memory: 512-reading internal storage
• Standard Programming Languages: SCPI, HP 3478A AND Fluke 8840A/42A
• Computer Interface: HP-IB and RS-232C standard

RESISTANCE: (2-wire ohm, 4-wire ohm)

• Input Characteristics

  Range	Maximum reading (6½)	Resolution in digits 6½
  100 ohm	120.0000	100 µohm
  1 kohm	1.200000	1 mohm
  10 kohm	12.00000	10 mohm
  100 kohm	120.0000	100 mohm
  1 Mohm	1.200000	1ohm
  10 Mohm	12.00000	10 ohm
  100 Mohm	120.0000	100 ohm

• Measurement Accuracy: ± (% of reading + % of range)
  Specs are for 4-wire ohm or 2-wire ohm using Math Null

  Range	1-Year 23° C ±5° C
  100 ohm	0.010 + 0.004
  1 kohm	0.010 + 0.001
  10 kohm	0.010 + 0.001
  100 kohm	0.010 + 0.001
  1 Mohm	0.010 + 0.001
  10 Mohm	0.040 + 0.001
  100 Mohm	0.800 + 0.010

DC CURRENT

• Measurement Accuracy: ± (% of reading + % of range)

  Range	1-Year 23° C ±5° C
  10 mA	0.050 + 0.020
  100 mA	0.050 + 0.005
  1 A	0.100 + 0.010
  3 A	0.120 + 0.020

• Input Protection: Externally accessible 3A 250V fuse; internal 7A 500V fuse

AC CURRENT (true rms)

• Measurement Accuracy: ± (% of reading + % of range); 1 year, 23° C ± 5° C

  Frequency	Ranges 1A	Ranges 3A
  3 to 5 Hz	1.00 + 0.04	1.10 + 0.06
  5 to 10 Hz	0.30 + 0.04	0.35 + 0.06
  10 Hz to 5 kHz	0.10 + 0.04	0.15 + 0.06