|
Integrating-averaging
Precision Sound Level Meter/
|
|
|
Integrating-averaging
Sound Level Meter
|
|
|
TYPE 6224/ TYPE 6226
|
|
|
|
|
|
Features
|
|
|
§ Percentile
level (Lx) – any 5 selectable values
|
|
|
§ Measure
equivalent continuous A-weighted sound pressure level capability (Leq)
Measure environmental noise required for securing occupational
health capability
|
|
|
§ Wide
linearity range of 100 dB
|
|
|
§ Equipped
with an RS-232C function, allows for processing of data by PC
|
|
|
§ Equipped
with memory function, allows for storing up to 15,000 bits of data
|
|
|
§ Backlite LCD screen for
high-visibility and easy-on-the-eye display
|
|
|
§ Excellent
cost/performance ratio overpowers comparably priced products
|
|
|
|
|
|
Specifications
|
|
|
Type
|
6224
|
6226
|
|
Applicable
Standards
|
JIS
C 1505, IEC 60651 Type 1,
IEC
60804 Type 1, IEC/CDV 61672-1 Class 1
|
JIS
C 1502, IEC 60651 Type 2,
IEC
60804 Type 2, IEC/CDV 61672-1 Class 2
|
|
Measurement
Range
|
27
~ 130dB (A)
38
~ 130dB (C)
41
~ 130dB (F)
|
28
~ 130dB (A)
33
~ 130dB (C)
38
~ 130dB (F)
|
|
Peak
Level
|
38
~ 138dB (A)
55
~ 138dB (C)
60
~ 138dB (F)
|
|
Measurement
Frequency Range
|
20Hz
~ 20kHz (JIS range: 20Hz ~12.5kHz)
|
20Hz
~ 8kHz
|
|
Microphone
|
7146N
1/2
Electret condenser microphone
|
7052N
1/2
Electret condenser microphone
|
|
Level
Range Control
|
10dB
6 steps
|
|
Linearity
Range
|
100dB
|
|
Time
weighting characteristics
|
Fast,
Slow, Impulse
|
Fast,
Slow, Impulse
|
|
Frequency
Weighting
|
A,
C, Flat
|
|
Measurement
Parameters
|
Lp: Sound
pressure level
Leq:
Equivalent continuous A-weighted sound pressure level
Le:
Sound exposure level
Lmax: Maximum
sound level
Lmin: Minimum
sound level
Lx:
Percentile level (5 values of free select)
Lpeak: Waveform
peak hold (C weighting selectable)
|
|
Response
Time For Constant Input Signal
|
1s,
3s, 5s, 10s, 1min, 5min, 10min, 15min, 30min, 1h, 8h, 24h, Manual (Max:
199H59M59S)
|
|
Sampling
Time
|
20.8µs
(Leq), 10ms (Lmax, Lmin)
|
|
Lx
Sampling Time
|
100ms
|
|
Display
Type
Digital display
Bar display
Warning
Battery
|
Liquid
crystal and Back light (128 x 64 points)
4
digits, Display Period: 1s
Display
Period: 0.1s
Over:
+3dB from upper limited scale Under: -0.6dB from
lower limited scale
4
steps display
|
|
Memory
|
Memorize
the Sound pressure level or the Operation level (Approx. 15000 data)
|
|
Date
|
Built-in
(year/month/day/hour: minute: second)
|
|
Pause
|
Pause/
data clear
|
|
Calibration
|
Electric
calibration with internal oscillator (1kHz Sine wave)
|
|
AC
Output
|
1Vrms
for full scale Output impedance: 600Ω, resistance: more than 10kΩ
|
|
DC
Output
|
2.5V
for full scale, 0.25V/10dB Output impedance: 50Ω, resistance: more than 10kΩ
|
|
I/O
Terminal
|
Interface:
RS-232C Data: 8bits, Stop: 2bits, Parity:not, Baud
rate: 4800, 9600, 19200bps
(direct
output to printer, control and output data to computer)
|
|
Battery
|
Four
1.5V Alkaline cells IEC type LR6, Optional AC adapter
Alkaline
dry cell: Approx. 24 hours (Manganese dry cell: Approx. 11 hours)
when
Switch on a back light: Approx. 1/3
|
|
Operating
Temperature Range
|
Temperature:
-10°C ~ 50°C Humidity: 30% ~ 90%
(not condensing)
|
|
Dimensions
|
85
(W) x 310 (H) x 48 (D)
|
85
(W) x 284 (H) x 48 (D)
|
|
Weight
|
Approx.
370g
|
|
|
|
|
