Tus neeg siv phau ntawv
Specifications
Input
and Analysis Characteristics
No.
of input channels: 2
Input
format:
Differential
input, single-ended input
Input
impedance:
Approx.
1
Mfl/100
pF (single-ended)
Input
coupling:
AC,
DC, and GND
Common-mode rejection ratio
(CMR):
50 dB or more
(with
DC
coupling,
50/60 Hz)
Maximum
differential
input voltage:
±200
V
Maximum
common-mode signal voltage:
±200
V
Input
range: +30 dBV to -60 dBV (variable in 1-dB
steps)
Voltage
display 44.7 V to 1.41 mV
rms display 31.6 V to 1 mV
Auto
range: Optimum setting in above range by signal input (in
5-dB
steps)
Maximum
common-mode signal voltage:
±14
V (-60 dBV range to -6 dBV range)
±140
V (-5 dBV range to +14 dBV range)
±200
V
(
+ 15 dBV range to +30 dBV range)
Maximum
input
sensitivity:
-125 dBV (approx. 0.56/u.
Vrms)
(typical
value: -140 dBV in 2 kHz range)
Dynamic
range: Range of values starting
from
full
scale
in
spectrum mode; measured under the conditions of 32
times averaging, rectangular wave
weighting,
filter
on,
and 400 spectrum lines by
inputting
a sine wave of
frequency range 0 to 90% and amplitude
level
-3 dB.
(at23°C±5°C)
85 dB
(
+
30
dBV
~ -40
dBV)
(Typ.
90 dB)
75 dB(-41 dBV 50 dBV)
65 dB(-51dBV 60 dBV)
Residual noise: Range of values starting
from
full
scale
in
spectrum mode; measured under the conditions of 32
times averaging, rectangular wave
weighting,
filter
on,
and 400 spectrum lines by
eliminating
i/f
noises;
frequency range 0 to 90% (at
23°C
±5°C)
-85
dB(
+
30
dBV
~ -40
dBV)
-75 dB(-41 dBV 45 dBV)
-60 dB(-46 dBV 60 dBV)
Amplitude
linearity:
±0.2 dB or
less
(from
full
scale
to -40 dB,
23°C
±5°C)
Frequency levelness: ±0.3 dB or
less
(at
23°C
±5°C)
(
—3
dB point of
AC
coupling in frequency range
from
0
to
90% is approx. 0.2 Hz)
Amplitude
accuracy:
Amplitude
linearity
+ frequency levelness
(at
23°C
±5°C)
Channel-to-channel amplitude difference: ±0.3 dB or
less
(at
23°C
±5°C)
in the
same
sensitivity range and frequency
range
from
0 to 90%
Channel-to-channel
phase
difference: ±3.0 deg or
less
(at
23°C
±5°C)
in the
same
sensitivity range and frequency
range
from
0 to 90%
Accelerometer power source: AC input
only
4 mA current source Channel A/B + side
Maximum
operating voltage + 18 V
Open
circuit
voltage +24 V or
less
Overload
display: LED
Test signal: In frequency range
from
100 kHz to 2 kHz
Amplitude
level
Approx.
—4 dBV
Frequency 8% rectangular wave in the range
A/D
converter resolution: 16bits
Frequency range: 10 mHz to 100 kHz, 22
ranges
in 1, 2, and 5
steps
Frequency accuracy: ±50 ppm ± measuring resolution in the
frequency range (at
23°C
± 5°C)
Input
filter:
Anti-aliasing
filter
(roll-off
characteristic: —148 dB/
octave automatically set for each frequency range
External
sampling input: Sampling
from
BNC connector of the
rear panel by
TTL-level
external pulse (anti-aliasing
filter
on/off
possible)
External
sampling output: Sampling signal output to BNC
connector of the rear panel
Triggering
Trigger
modes: Free-run, manual, external and internal trigger,
automatically
repeating trigger
Trigger
sources:
Channel A signal, Channel B signal and external
signal
triggering
Trigger
levels:
Internal
trigger Set by numeric keys
with
1/256 resolution of
the amplitude range
External
trigger TTL signal
rising
or
falling
edge
selected
(BNC
connector of rear panel)
Trigger
slope: +, —, ± (input signal trigger)
Trigger
position:
Single-channel mode Setting range of —128K to 1M
with
a
resolution
of
1
sampled data
item
Dual-channel mode Setting range of
—64K
to +1M
with
a
resolution
of
1
sampled data
item
Averaging
Frequency-domain averaging modes:
Addition
(SUM),
subtraction
(SUB),
exponential
function
moving mean
(EXP),
and maximum detected value
(PEAK)
Time-domain
averaging mode:
Addition
(SUM)
Delay-domain
averaging mode:
Addition
(SUM)
Amplitude-domain
averaging mode:
Addition
(SUM)
No.
of
averages:
1 to 32767
Overlapping:
0%, 50%, 75%, max.
Averaging
control:
Start, stop, +1, continue (Erased
automatically
at start)
Measurement modes
•
Waveform measurement mode
•
Spectrum measurement mode
•
Time-frequency analysis mode
•
Frequency
response
function
measurement mode
Waveform
measurement mode
Measured items:
Time-domain
instantaneous data
Time-domain
average
data
Auto-correlation
function
Cross-correlation
function
Probability
density
function
No.
of analyzed data: 64 to 8192 points (1 channel)
64 to 4096 points (2 channels)
Averaging:
Time-domain
averaging
Delay-domain
averaging
Amplitude-domain
averaging
Conversion
function:
In engineering
unit
Marker
analysis functions:
Peak,
rise time,
fall
time, pulse
width,
and effective value
Arithmetic
functions:
Differentiation,
integration, smoothing,
trend
removal, addition, subtraction,
multiplication,
division,
and pre-envelope
Display
functions: Time-amplitude,
amplitude-probability
density, and
orbit
Spectrum Measurement Mode
Measured items:
Complex
spectrum
Power spectrum
Mutual
spectrum
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