Standard applied Measuring law JIS C 1510-1995
(Japan)
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Measuring functions
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Vibration level
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Lv
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Vibration acceleration level
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Lva
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Power average
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Leq
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Maximum value
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Lmax
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Minimum value
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Lmin
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Percentile level
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Lx(Five values arbitrarily selected)
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Measuring time
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10 seconds,1,5,10,15,30 minutes,
1,8,12,24 hours
Manual Longest measuring time:
199 hours 59 minutes 59 seconds
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Measuring level
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30-120 dB
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Self-noise
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Not larger than 30 dB
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Linearity range
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75 dB
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Level range switching
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2 stage switching by 20 dB step
30 90 dB
50 110 dB
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Frequency range
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1-80 Hz
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Frequency correcting circuit
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Vertical characteristic, horizontal characteristic,
and flat characteristic
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Effective value detecting circuit
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Real effective value detecting circuit
(digital computing scheme)
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Dynamic characteristic
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0.63 second
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Calibration
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Electrical calibration by built-in
oscillator(sinusoidal wave of 31.5 Hz)
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Sampling period
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2 ms (Leq)
64 ms (Lmax, Lmin, Lx)
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Computing
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Power average(Leg)
Computing mean square within measuring
time in three directions simultaneously.
Percentile level(Lx)
Computing L5, L10, L50, L90 and L95 in
three directions simultaneously based on
cumulative frequency distribution.
Maximum, minimum value(Lmax,Lmin)
Computing maximum and minimum values
within measuring time in three directions
simultaneously
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Pause function
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General pause function
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Displayer
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Liquid crystal displayer(128 X 64 dots)
with backlight
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Digital display
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Displayed in numerals: Displayed in 4
digits
Displaying cycle: 1 second
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Bar display
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Displaying cycle Approximately:64 ms
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Alarm display
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Over: Overload,displayed in+10 dB from
scale upper limit
Under: Excessively faint signal, displayed
in -0.6 dB from scale lower limit
Remaining battery amount: Displayed in 4
stages
Clock: Year, Month, Date, Hour, Minute, Second
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Output terminal
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Independent output in 3 directions
respectively
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AC output
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Output voltage: 1 Vrms(full scale)
Output resistance: 600 Ohm
Load resistance: Not less than 10k Ohm
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DC output
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Output voltage'.2.5 V(full scale)
0.25 V/10 dB
Output resistance'.50 0
Load resistance.'Not less than 10 ka
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I/0 terminal
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Control of vibration meter and data output
by computer(direct output to computer)
Interface RS-232C(asynchronous)
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Battery
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AA batteries four or AC adaptor
Battery life.'Alkali battery,approximately
20 hours(Manganese battery, approximately
11 hours)Battery life is approximately 1/3
the above when the backlight lights
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Operating temperature range
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-10-50 30 % 90 %RH(no condensation)
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Weight Approximately
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350 g including batteries
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Configuration
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Main body TYPE 3233 1
Vibration pickup TYPE 7833
(Three directional) 1
Cable(3m) BC-0233 1
BNC pin cord BC-0071 1
AA batteries 4
Housing case 1
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