| Measurement Characteristics | |||
| dc Voltage | ¡@ | ||
| Measurement Method | Continuously Integrating Multi-slope III A-D Converter | ||
| A-D Linearity | 0.0002% of reading + 0.0001 % of range | ||
| Input Resistance | ¡@ | ||
| 
       0.1V, 1V,10 V ranges  | 
      Selectable 10 M£[ or >10,000 M£[ | ||
| 
       100 V, 1000 V ranges  | 
      10 M£[ ¡Ó 1% | ||
| Input Bias Current | < 30pA at 25¢X C | ||
| Input Protection | 1000 V all ranges | ||
| dcV:dcV Ratio Accuracy | Vinput Accuracy + Vreference Accuracy | ||
| ¡@ | ¡@ | ||
| True rms ac Voltage | |||
| 
       Measurement Method ¡@  | 
      
       ac coupled True rms ¡V measures the ac component of the input with up to 400 Vdc of bias on any range.  | 
    ||
| Crest Factor | Maximum of 5:1 at Full Scale | ||
| 
       Additional Crest Factor ¡@ ¡@  | 
      
       
      Errors (non-sinewave) 
      Crest Factor 1¡V2 0.05 % of reading Crest Factor 2¡V3  | 
    ||
| Input Impedance | 1 M£[ ¡Ó 2% in parallel with 100 pF | ||
| Input Protection | 750Vrms all ranges | ||
| ¡@ | ¡@ | ||
| Resistance | |||
| Measurement Method | Selectable 4-wire or 2-wire Ohms. Current source referenced to LO input. | ||
| Maximum Lead Resistance | |||
| 
       (4-wire)  | 
      10% of range per lead for 100½ and 1k£[ ranges. 1k½ per lead on all other ranges. | ||
| Input Protection | 1000 V all ranges | ||
| ¡@ | ¡@ | ||
| dc Current | |||
| Shunt Resistance | 5 £[ for 10 mA,100 mA; 0.1 £[ for 1 A, 3 A | ||
| Input Protection | Externally accessible 3 A 250 V Fuse Internal 7 A 250 V Fuse | ||
| ¡@ | ¡@ | ||
| True rms ac Current | |||
| 
       Measurement Method ¡@  | 
      
       Direct coupled to the fuse and shunt. ac coupled True rms measurement (measures the ac component only).  | 
    ||
| Shunt Resistance | 0.1 £[ for 1 A and 3 A ranges | ||
| Input Protection | ExternalIy accessible 3 A 250 V Fuse Internal 7 A 250 V Fuse | ||
| ¡@ | ¡@ | ||
| Frequency and Period | |||
| Measurement Method | Reciprocal counting technique | ||
| Voltage Ranges | Same as ac Voltage Function | ||
| Gate Time | 1 s, 100 ms, or 10 ms. | ||
| ¡@ | ¡@ | ||
| Continuity / Diode | |||
| Response Time | 300 samples/s with audible tone | ||
| Continuity Threshold | Selectable from 1 £[ to 1000 £[ | ||
| ¡@ | ¡@ | ||
| Measurement Noise Rejection 60 (50) Hz[1] | |||
| dc CMRR | 140 dB | ||
| ac CMRR | 70 dB | ||
| ¡@ | ¡@ | ||
| Integration Time | Normal Mode Rejection[2] | ||
| 100 plc / 1.67 s (2 s) | 60 dB[3] | ||
| 10 plc / 167 ms (200 ms) | 60 dB[3] | ||
| 1 plc / 16.7 ms (20 ms) | 60 dB | ||
| <1 plc / 3 ms or 800 µs | 0 dB | ||
| ¡@ | ¡@ | ||
| Operating Characteristics[4] | |||
| Function | 
      
  | 
    ||
| dcV, dcI, and | 
      
  | 
    ||
| Resistance | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| acV, acI | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| Frequency or Period | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| ¡@ | 
      
  | 
    ||
| ¡@ | ¡@ | ||
| System Speeds[6] | |||
| Configuration Rates | 26/s to 50/s | ||
| Autorange Rate (dc Volts) | >30/s | ||
| ASCII readings to RS-232 | 55/s | ||
| ASCII readings to GPIB 1000/s | 1000/s | ||
| Max. Ext. Trig. Rate to Memory | 1000/s | ||
| ¡@ | ¡@ | ||
| Triggering and Memory | |||
| Reading HOLD Sensitivity | 10%, 1%, 0.1%,or 0.01% of range | ||
| Samples/ trigger | 1 to 50,000 | ||
| Trigger Delay | 0 to 3600 s: 10 µs step size | ||
| External Trigger Delay | < 1 ms | ||
| External Trigger Jitter | < 500 µs | ||
| Memory | 512 readings | ||
| ¡@ | ¡@ | ||
| Math Functions | |||
| NULL, Min/Max/Average, dBm, dB, Limit Test (with TTL output) | |||
| ¡@ | ¡@ | ||
| Standard Programming Languages | |||
| SCPI (IEEE-488.2), Agilent 3478A, Fluke 8840A/42A | |||
| ¡@ | ¡@ | ||
| Accessories Included | |||
| 
       
      Test Lead Kit with 
      probe, alligator, and grabber attachments. Operating Manual, Service 
      Manual, test report,  | 
    |||
| ¡@ | ¡@ | ||
| General Specifications | |||
| Power Supply | 100 V/120 V/220 V/ 240 V ¡Ó10% | ||
| Power Line Frequency | 45 Hz to 66 Hz and 360 Hz to 440 Hz Automatically sensed at power-on | ||
| Power Consumption | 25 VA peak (10W average) | ||
| Operating Environment | Full accuracy for 0¢X C to 55¢X C Full accuracy to 80% R.H. at 40¢X C | ||
| Storage Environment | ¡V 40¢X C to 70¢X C | ||
| Weight | 3.6 kg (8.0 Ibs) | ||
| Safety | Designed to CSA, UL-1244, IEC-348 | ||
| RFI and ESD | MIL-461C, FTZ 1046, FCC | ||
| Vibration and Shock | MIL-T-28800E, Type III, Class 5 (Sine Only) | ||
| Warranty | 3 years | ||
| 
       
      1 For 1k½ unbalance 
      in LO lead.  | 
    |||