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Calibration Manual 
6 
AC Voltage Specifications 
Accuracy 
Function Range  Resolution 
20 to 45 Hz  45 to 65 Hz 
65 Hz to 10 
kHz 
10 to 20 kHz  20 to 100 kHz 
50 mV
[1]
  0.001 mV  1.5 % + 60 0.3 % + 25 0.4 % + 25  0.7 % + 40  3.5 % + 40
[6]
 AC mV
[5]
 
500 mV  0.01 mV  1.5 % + 60 0.3 % + 25 0.4 % + 25  0.7 % + 40  3.5 % + 40 
5 V
[1]
  0.0001 V  1.5 % + 60 0.3 % + 25 0.6 % + 25  1.5 % + 40  3.5 % + 40
[6]
 
50 V
[1]
  0.001 V  1.5 % + 60 0.3 % + 25 0.4 % + 25  0.7 % + 40  3.5 % + 40 
500 V
[1]
  0.01 V  1.5 % + 60 0.3 % + 25 0.4 % + 25  Not Spec’d  Not Spec’d 
AC V 
1000 V  0.1 V  1.5 % + 60 0.3 % + 25 0.4 % + 25  Not Spec’d  Not Spec’d 
-70 to -62 
dB
[3]
 
0.01 dB 
3 dB  1.5 dB  2 dB  2 dB  3 dB 
-62 to -52 
dB
[3]
 
0.01 dB 
1.5 dB  1.0 dB  1 dB  1 dB  2 dB 
-52 to -6 
dB
[3]
 
0.01 dB 
0.2 dB  0.1 dB  0.1 dB  0.2 dB  0.8 dB 
-6 to +34 
dB
[3]
 
0.01 dB 
0.2 dB  0.1 dB  0.1 dB  0.2 dB  0.8 dB 
dBV 
34 to 60 
dB
[3]
 
0.01 dB 
0.2 dB  0.1 dB  0.1 dB  Not Spec’d  Not Spec’d 
Low pass 
filter
[4]
 
 
2 % + 80  2 % + 40 
2 % +10
[2] 
-6 % -60
 
Not Spec’d  Not Spec’d 
L
[4]
 
1000 V  0.1 V  2 % + 80  2 % + 40  2 % + 40
[7]
  Not Spec’d  Not Spec’d 
[1]  Below 5 % of range, add 20 counts. 
[2]  Specification increases linearly from -2 % at 200 Hz to -6 % at 440 Hz. Range is limited to 440 Hz. 
[3] dBm (600 Ω) is specified by adding +2.2 dB to the dBV range values. 
[4] 289 only. 
[5]  500 mV range specification between 64.000 kHz and 67.000 kHz is +(0.0 % to -5 % of reading); 50 mV range specification 
between 64.000 kHz and 67.000 kHz is +(0.0 % to -6 % of reading ±40 counts). Valid from -20 °C to <18 °C and >28 °C to +55 °C. 
[6]  Add 2.5 % above 65 kHz. 
[7]  Range is limited to 440 Hz. 
See Detailed Specifications introduction for additional information. 
AC Current Specifications 
Accuracy 
Function Range Resolution 
20 to 45 Hz  45 to 1 kHz  1 to 20 kHz  20 to 100 kHz
[4]
500 μA 0.01 μA 
1 % + 20  0.6 % + 20  0.6 % + 20  5 % + 40 
AC μA
[3]
 
5000 μA 0.1 μA 
1 % + 5  0.6 % + 5  0.6 % + 10  5 % + 40 
50 mA  0.001 mA  1 % + 20  0.6 % + 20  0.6 % + 20  5 % + 40 AC mA
[3]
 
400 mA  0.01 mA  1 % + 5  0.6 % + 5  1.5 % + 10  5 % + 40 
5 A  0.0001 A  1.5 % + 20  0.8 % + 20  3 % + 40
[4]
 Not Spec’d AC A
[2]
 
10 A
[1]
  0.001 A  1.5 % + 5  0.8 % + 5  3 % + 10
[4]
 Not Spec’d 
[1]  10 A range (10 % to 100 % of range). 
[2]  20 A for 30 seconds on, 10 minutes off. >10 A not specified. 
[3]  400 mA continuous; 550 mA for 2 minutes on, 1 minute off. 
[4]  Verified by design and type tests. 
See Detailed Specifications introduction for additional information.