72
5.2 Accuracy
AC+DCmV/ V (AC+DCV measurement)
dB (Decibel display)
Range
Accuracy
*1
Input
Impedance
20-45Hz 45-1kHz 1k-10kHz 10k-20kHz 20k-100kHz
51.000
mV
±1.2%rdg.
±80 dgt.
± 0.4%rdg.
± 60 dgt.
± 0.7%rdg.
± 60 dgt.
± 1.5%rdg.
± 60 dgt.
± 3.5%rdg.
± 220 dgt.
1 GΩ
or more
510.00
mV
±1.2%rdg.
±65 dgt.
± 0.4%rdg.
± 30 dgt.
± 0.4%rdg.
± 30 dgt.
± 1.5%rdg.
± 45 dgt.
± 3.5%rdg.
± 125 dgt.
1000.0
mV
5.1000 V
± 3.5%rdg.
± 125 dgt.
1.1 MΩ/
100 pF
or less
51.000 V
510.00 V
± 1.5%rdg.
± 45 dgt.
*2
± 3.5%rdg.
± 125 dgt.
*2
1000.0 V
± 0.4%rdg.
± 45 dgt.
± 0.4%rdg.
± 45 dgt.
Not
specified
Sampling rate: 1.65 times /s
Crest factor: 3 or less
Overload protection: 1000 V DC/ 1000 Vrms (sin) or 10
7
VHz, transient overvolt-
age 8000 V, Overload current 0.3 A or less (AC+DCmV)
*1: Accuracy not specified at less than 5% of range (An accuracy of 45 Hz to 1
kHz is applicable only for a DC component)
*2: Accuracy specified for 200 Vrms or less when exceeding 10 kHz
Range Reference
Reference
Resistance
Conversion Formula Accuracy
510.00 dBm
1 mW
1-9999 Ω
*
10 log
10
[V
2
X (1000/ refer-
ence resistance)]
Add 0.3 dB
to voltage
measure-
ment accu-
racy
510.00 dBV 1 V 20 log
10
V
Bandwidth conforms with voltage measurement
* Initial reference resistance: 600 Ω
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