236
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11.2 Input Unit Specifications
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Period of guaranteed
accuracy
The specifications below show the accuracy at 23
o
C
5
o
C and 30% to
80% RH when zero adjustment is completed 30 minutes after powering
on. Accuracy is guaranteed for one year
Measurement ranges
100 mV, 200 mV, 500 mV, 1 V, 2 V, 5 V/DIV
DC amplitude accuracy
0.5% f.s.
Zero position accuracy
0.1% f.s.
Temperature characteristic
Gain:
0.03% f.s./
o
C
Zero position:
0.025%f.s./
o
C
Frequency characteristic
DC 400 kHz max.
3 dB
Common mode refection
ratio
80 dB min. (at 50/60 Hz and with signal source resistance 100
Ω
max.)
Low-pass filter
OFF, 5, 50, 500, 5 k, 50 k, 100 k
50% (Hz) -3 dB,
Noise
3 mVp-p(typ), 5 mVp-p(max.) (sensitivity range, with input shorted)
Input type
Unbalanced (input isolated from output)
Input resistance
1 M
Ω
1%
Input capacitance
20 pF
10 pF (at 100 kHz)
A/D resolution
12 bits
Voltage axis resolution
160 points/DIV (Voltage axis ratio X 1)
Maximum sampling speed
1 MS/s
Method of input signal
coupling
DC, GND
Input terminals
Terminal stand, M3.5 screw
Maximum input voltage
30 V rms or 60 V DC (CAT I)
Maximum rated voltage to
earth
30 V rms or 60 V DC (between the input channels and the main unit, and
between the each input channels)
Effect of radioactive radio-
frequency electromagnetic
field
5% f.s. at 10 V/m
Effect of conductive radio-
frequency electromagnetic
field
2% f.s. at 3 V
11.2 Input Unit Specifications
