参数规格说明:

• 0.003% basic 1 year dc accuracy
• Increased resolution with 20 mV, 200 mA and 20 ohm ranges
• Extended calibration cycle with 2 year specifications

Specifications

DC voltage
Input characteristics

                        Full scale                      Resolution                               Input
Range           5 1/2 Digits        5 1/2 Digits   4 1/2* Digits         Resistance
20 mV            19.9999 mV              0.1 mV              1 mV                                         ³ 10,000 MW
200 mV          199.999 mV              1 mV                 10 mV                ³ 10,000 MW
2V                  1.99999V                  10 mV               100 mV              ³ 10,000 MW
20V                19.9999V                  100 mV             1 mV                 ³ 10,000 MW
200V              199.999V                  1 mV                10 mV                ³ 10 MW
1000V            1000.00V                  10 mV              100 mV              ³ 10 MW
* 4 1/2 digits at the fastest reading rate

Accuracy
Normal (S) reading rates: ± (% of reading + number of counts)

                      24 hour(1)           90 day            1 year               2 year
Range          23 ± 1°C               23 ± 5°C        23 ± 5°C          23 ± 5°C
20 mV(2)       0.0050+20              0.0070+30      0.0100+30         0.0120+40
200 mV(2)     0.0030+2                0.0045+3        0.0070+3           0.0100+4
2V                 0.0015+2                0.0025+2         0.0030+2           0.0050+3
20V               0.0015+2                0.0030+2         0.0035+2           0.0060+3
200V             0.0015+2                0.0030+2         0.0035+2           0.0060+3
1000V           0.0020+2                0.0035+2         0.0045+2           0.0070+3
(1) Relative to calibration standard
(2) Within one hour of dc zero, using offset control

Medium and fast rates: in medium rate, add 3 counts (20 counts on 20 mV range) to number of counts.
In fast rate, use two 4 1/2 digit counts (30 counts on 20 mV range) for the number of counts
Operating characteristics
Temperature coefficient: > ± (0.0006% of reading + 0.3 count) per °C from 18°C to 0°C and 28°C to 50°C
Maximum input: 1000V dc or peak ac on any range
Noice rejection: automatically optimized at power-up for 50, 60 or 400 Hz

Rate        Readings/       Filter        NMRR(2)      Peak NM       CMRR(3)
               Seconds (1)                                      Signals
S                 2.5(5)            Analog        > 98 dB             20V             > 140 dB
                                              &                                        or
                                          Digital                                 2xFS(4)
M               20(6)              Digital          > 45 dB           1xFS             > 100 dB
F                 100                 None                  -                1xFS             > 60 dB

(1) Reading rate with internal trigger and 60 Hz power line frequency.
(2) Normal mode rejection ratio, at 50 Hz or 60 Hz ± 0.1%. The NMRR
      for 400 Hz ± 0.1% is 85 dB in S rate and 35 dB in M rate.
(3) Common mode rejection ratio at 50 Hz or 60 Hz ± 0.1% with 1 kohm in series
      with either lead. The CMRR is > 140 dB at dc for all reading rates.
(4) 20V or 2 times full scale whichever is greater, not to exceed 1000V.
(5) Reading rate - .31 rdg/sec in the 20 mV, 20 ohm, 200 mA dc ranges.
(6) Reading rate - 1.25 rdg/sec in the 20 mV, 20 ohm, 200 mA dc ranges.

True-RMS AC Voltage (Option 09)
Input characteristics
                         Full                  Resolution
                        Scale              5 1/2              4 1/2*              Input
Range       5 1/2 Digits      Digits            Digits           Resistance
200 mV      199.999 mV         1 mV               10 mV                1 MW
2V              1.99999V             10 mV             100 mV            shunted
20V            19.9999V             100 mV           1 mV             by < 100 pF
200V          199.999V             1 mV              10 mV
700V          700.00V               10 mV            100 mV

Medium and fast reading rates: in medium rate, add 50 counts to the number of counts.
In fast rate the specifications apply for sinewave inputs ³ 1000 4 1/2 digit counts and > 100 Hz.
Nonsinusoidal inputs: for nonsinusoidal inputs ³ 10,000 counts with frequency components
£ 100 kHz, add the following % of reading to the accuracy specifications.

Fundamental                          Crest factor
frequency                  1.0-1.5     1.5-2.0     2.0-3.0
45 Hz to 20 kHz          0.05%       0.15%        0.3%
20 Hz to 45 Hz &
20 kHz to 50 kHz       0.2%         0.7%         1.5%

Operating characteristics
Maximum input: 700V rms, 1000V peak or 2x10 EXP 7 volt-hertz product (whichever is less) for any range.
Temperature coefficient: ± (% of reading + numbers of counts) per °C, 0°C to 18°C and 28°C to 50°C.

                                          Frequency in Hertz
For inputs          20-20k          20k-50k          50k-100k
³ 10,000
counts               0.019 + 9         0.021 + 9            0.027 + 10
³ 1,000
counts            0.019 + 12       0.021 + 15          0.027 + 21

Common mode rejection: > 60 dB at 50 Hz or 60 Hz with 1 kohm in either lead

Current
Input characteristics
                    
                        Full scale                        Resolution
Range           5 1/2 Digits          5 1/2 Digits     4 1/2 Digits(1)
200 mA(2)     199.999 mA               1 uA                 10 uA
2000mA         1999.99 mA             10 uA                100 uA
(1) 4 1/2 digits at the fastest reading rate
(2) 200 mA range is dc only

DC accuracy
Normal (S) reading rate: ± (% of reading + number of counts)

Options
05: IEEE-488 interface
09: True-RMS AC

General Specifications
Size: H 89, W 216, D 371 mm
Weight: 3.4 kg

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