A-4 Specifications
DC Volts (cont’d)
Polarity Reversal Error
This is the portion of the instrument error that is seen when
HI and LO are reversed. This is not an additional error—it is
included in the overall instrument accuracy specification.
Reversal Error:
<4 counts at 10V input at 7
½
digits, 10 power
line cycles, synchronous autozero, 10-reading repeat digital
filter.
Input Bias Current
<100pA at 25
°
C.
Settling Characteristics
<50
µ
s to 10ppm of step size for the 200mV–20V ranges. <1ms
to 10ppm of step size for the 200V and 1000V ranges. Reading
settling times are affected by source impedance and cable
dielectric absorption characteristics.
Autoranging
Autoranges up at 105% of range, down at 10% of range.
Linearity
<0.1ppm of range typical,
<0.2ppm maximum.
Zero Stability
Typical maximum variation
in 1 hour, T
REF
±
0.5
°
C, 7
½
-
digit resolution, 10-reading
digital filter, synchronous
autozero.
Range
1 PLC
10 PLC
200 mV
4
±
60 counts
±
40 counts
2
V
4
±
6 counts
±
4 counts
20
V
±
4 counts
±
1 count
200
V
±
5 counts
±
2 counts
1000
V
±
2 counts
±
1 count
DC Volts Notes
1 Specifications are for 10 power line cycles, synchronous
autozero, 10-reading repeat digital filter, autorange off,
except as noted.
2 For T
CAL
±
1
°
C, following 4-hour warm-up. T
CAL
is ambient
temperature at calibration (23
°
C at the factory). Add 0.5
ppm of reading uncertainty if the unit is power cycled
during this interval.
3 For T
CAL
±
5
°
C, following 4-hour warm-up.
4 Care must be taken to minimize thermal offsets due to
operator cables.
5 For T
CAL
±
5
°
C, normal autozero. 1-year or 2-year accuracy
can be found by applying the same speed accuracy ppm
changes to the 1-year or 2-year base accuracy.
6 Applies for 1k
Ω
imbalance in the LO lead. For 400Hz
operation, subtract 10dB. For the 200V and 1000V ranges,
subtract 20dB.
7 For noise synchronous to the line frequency.
8 For line frequency
±
0.1%.
9 For on-scale readings, no trigger delays, internal trigger,
digital filter off, normal autozero, display off, SREAL
format. These rates are for 60Hz and (50Hz). Rates for
400Hz equal those for 50Hz.
10 Typical values. Peak-to-peak noise equals 6 times rms
noise.
11 In burst mode, display off. Burst mode requires autozero
refresh (by changing resolution or measurement function)
once every 24 hours.
12 Specifications apply for 20-reading repeat digital filter,
T
REF
±
0.5
°
C (T
REF
is the initial ambient temperature), and
for measurements within 10% of the initial measurement
value and within 10 minutes of the initial measurement
time.
13 Add 2.5ppm
×
(V
IN
/1000V)
2
additional uncertainty for
inputs above 200V, except in transfer accuracy
specifications.
14 Specifications are for 1 power line cycle, normal autozero,
digital filter off, autorange off.
15 Using Internal Buffer.
DCV Peak Spikes Measurement
Repetitive Spikes Accuracy
1
90 Days, 1 Year or 2 Years, T
CAL
±
5
°
C
±
(% of % of range)
Temperature Coefficient
1kHz–
10kHz–
30kHz–
50kHz–
100kHz–
300kHz–
500kHz–
750kHz–
±
(% of % of range)/
°
C
Range
0–1kHz
4
10kHz
30kHz
50kHz
100kHz
300kHz
500kHz
750kHz
1MHz
Outside T
CAL
±
5
°
C
200 mV
0.08+0.7
0.09+0.7
0.1 +0.7
0.15+0.7
0.25+0.7
1.0+0.7
2.5+0.7
5.5+0.7
9+0.7
0.002+0.03
2
V
0.08+0.3
0.09+0.3
0.1 +0.3
0.15+0.3
0.25+0.3
1.0+0.3
2.5+0.3
5.5+0.3
9+0.3
0.002+0.03
20
V
0.1 +0.7
0.11+0.7
0.14+0.7
0.19+0.7
0.25+0.7
1.0+0.7
2.5+0.7
5.5+0.7
9+0.7
0.004+0.03
200
V
3
0.1 +0.3
0.11+0.3
0.14+0.3
0.19+0.3
0.25+0.3
1.0+0.3
2
2.5+0.3
2
5.5+0.3
2
9+0.3
2
0.004+0.03
1000
V
3
0.12+0.6
0.16+0.6
0.2 +0.6
0.25+0.6
2
0.5 +0.6
2
0.01 +0.02
Max. % of Range
±
125%
±
125%
±
125%
±
125%
±
125%
±
125%
±
125%
±
100%
±
75%
Default Measurement
Resolution
3
½
digits.
Maximum Input
±
1100V peak value, 2
×
10
7
V·Hz (for inputs above 20V).
Non-Repetitive Spikes
10% of range per
µ
s typical slew rate.
Spike Width
Specifications apply for spikes
≥
1
µ
s.
Range Control
In Multiple Display mode, voltage range is the same as DCV
range.
Spikes Measurement
Window
Default is 100ms per reading (settable from 0.1 to 9.9s in
Primary Display mode).
Input Characteristics
Same as ACV input characteristics.
Spikes Display
Access as multiple display on DC Volts. First option presents
positive peak spikes and highest spike since reset. Second
option presents negative spikes and lowest spike. Highest
and lowest spike can be reset by pressing DCV function button.
Third option displays the maximum and minimum levels of
the input signal. Spikes displays are also available through
CONFIG-ACV-ACTYPE as primary displays.
DCV Peak Spikes Notes
1 Specifications apply for 10-reading digital filter. If no
filter is used, add 0.25% of range typical uncertainty.
2 Typical values.
3 Add 0.001% of reading
×
(V
IN
/100V)
2
additional uncertainty
for inputs above 100V.
4 Specifications assume AC+DC coupling for frequencies
below 200Hz. Below 20Hz add 0.1% of reading additional
uncertainty.
Содержание 2002
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