284 Appendix A Specifications
1 / DC Voltage
DC Voltage
Accuracy
3
(ppm of Reading (ppm of Reading for Option 002) + ppm of Range)
Transfer Accuracy/Linearity
Settling Characteristics
For first reading or range change error, add 0.0001% of input voltage step additional error.
Reading settling times are affected by source impedance and cable dielectric absorption characteristics.
Additional Errors
Range Full Scale Maximum
Resolution
Input Impedance Temperature Coefficient (ppm of
Reading + ppm of Range) /º C
Without ACAL¹ With ACAL²
100 mV 120.00000 10 nV >10 GW 1.2 + 1 0.15 + 1
1V 1.20000000 10 nV >10 GW 1.2 + 0.1 0.15 + 0.1
10 V 12.0000000 100 nV >10 GW 0.5 + 0.01 0.15 + 0.01
100 V 120.000000 1 µV 10 MW ± 1% 2 + 0.4 0.15 + 0.1
1000 V 1050.00000 10 µV 10 MW ± 1% 2 + 0.04 0.15 + 0.01
Range
24 Hour
4
90 Day
5
1 Year
5
2 Year
5
100 mV 2.5 + 3 5.0 (3.5)+ 3 9 (5)+ 3 14 (10)+ 3
1V 1.5 + 0.3 4.6 (3.1)+0.3 8 (4)+ 0.3 14 (10)+0.3
10 V 0.5 + 0.05 4.1 (2.6) + 0.05 8 (4) + 0.05 14 (10)+0.05
100 V 2.5 + 0.3 6.0 (4.5) + 0.3 10 (6)+0.3 14 (10)+ 0.3
1000 V
6
2.5 + 0.1 6.0 (4.5)+ 0.1 10 (6)+ 0.1 14 (10)+ 0.1
Range
10 Min, Tref ± 0.5ºC
(ppm of Reading + ppm of
Range)
Conditions
100 mV 0.5 + 0.5
• Following 4 hour warm-up. Full scale to 10% of full scale
• Measurements on the 1000 V range are within 5% of the
initial meausurement value and following measurement
setting.
• Tref is the starting ambient temperature.
• Measurements are made on a fixed range (>4 min.) using
accepted metrology practices
1V 0.3 + 0.1
10 V 0.05 + 0.05
100 V 0.5 + 0.1
1000 V 1.5+0.05
Noise Rejection (dB)
7
*RMS Noise
AC NMR
8
AC ECMR
DC
ECMR
NPLC<1 090140
NPLC>1 60 150 140
NPLC > 10 60 150 140
NPLC > 100 60 160 140
NPLC = 1000 75 170 140
Range Multiplier
0.1V x20
1V x2
10 V x1
100 V x2
1000 V x1
For RMS noise error,
multiply RMS noise
result from graph by
multiplier in chart. For
peak noise error. multiply
RMS noise error by 3.
7. Applies for 1 kW
unbalance in the LO lead
and ± 0.1% of the line
frequency currently set
for LFREQ.
8. For line frequency ± 1%,
ACNMR is 40 dB for
NPLC ³ 1, or 55 dB for
NPLC ³ 100. For line
frequency ± 5%, ACNMR
is 30 dB for NPLC ³ 100.
1. Additional error from Tcal
or last ACAL ± 1 º C.
2. Additional error from Tcal
±5º C
3. Specifications are for
PRESET, NPLC 100.
4. For fixed range (> 4 min.),
MATH NULL and Tcal
±1ºC.
5. Specifications for 90 day, 1
year and 2 year are within 24
hours and ±1º C of last
ACAL; Tcal ±5ºC, MATH
NULL and fixed range.
ppm of Reading
specifications for High
Stability (Option 002) are in
parentheses.
Without MATH NULL, add
0.15 ppm of Range to 10 V,
0.7 ppm of Range to 1 V,
and 7 ppm of Range to 0.1
V. Without math null and for
fixed range less than 4
minutes, add 0.25 ppm of
Range to 10 V, 1.7 ppm of
Range to 1 V and 17 ppm of
Range to 0.1 V.
Add 2 ppm of reading
additional error for Agilent
factory traceability to US
NIST. Traceability error is
the absolute error relative to
National Standards
associated with the source of
last external calibration.
6. Add 12 ppm X (Vin/1000)
2
additional error for inputs >
100 V.
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