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Digital
Sound Level Meter ( SLM-200H) |
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Sound
Level Meter
Type
SLM-200H is
a compact
Instrument
with
virtual one
handed
operation
for
precision
sound level
measurement
.The type
SLM-200H is
equipped
with
condenser
microphone
type 2201
and a
dynamic
range from
30db-130db .The
indicating
meter is
LCD type
with
resolution
0.1 db and
with high
accuracy.
The sound
level upto
130 db can
be measured
in three
ranges,which
makes the
operation
very simple
.The
equipment
is designed
using
latest technology
to consume
very low
power
.Delivered
in leather
carrying
case with
strap.
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Features
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Compact
Design
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Light
in Weight
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•
Self
Powered
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Direct
Read out
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Applications
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Measurement
of
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Industrial
Noise
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Aircraft
Noise
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Traffic
Noise
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Air
Blowers,
Horns Noise
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Radio &
TV Acoustic
Testing,
etc
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Technical
Specifications
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Measuring
Range |
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30db to
130 db
in three
ranges.30
- 80
db,50 -
100 and
80-130
db |
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Microphone |
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Built
in
electrete
Condenser
type
with
omni
directional
Characteristic |
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Weighting
Network |
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A,B
and C
with cut
off
frequencies
at 1000
Hz.400
Hz.and
20 Hz
respectively. |
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Indicating
meter |
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LCD
type
with 0.5"
character
height. |
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Accuracy |
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±
1db upto
90db ± 1.5 db
above 90
db |
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Power |
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2
Nos. 9V
battery
type 216
or by
eliminator |
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Resolution |
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0.1
db |
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Weight |
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Less
than 500
gms |
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Digital
Sound Level Meter ( 200HF)
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Sound
Level Meter
Type
SLM200HF is
a compact
instruments
with
virtual one
handed
operation
for
precision
sound
measurement
and analyse
the source
of noise to
make a
decision
concerning
possible
corrective
action.The
band pass
filter will
give clear
idea on the
noise
contribution
in each frequency
band. Which
help to
select
effective
hearing
protectors
and sound
barrier
materials.
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Technical
Specification
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Measuring
Range |
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30
- 150 db
in 4
ranges.30
- 80 ,50
- 100,
80-130,100-150 |
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Microphone |
: |
Built
in
Electrete
Condenser
type
with
omni
directional
Characteristic.. |
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Weighting
Network |
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A
, B and
C with
cut off
frequencies
at 1000
Hz,400
Hz and
40 Hz
respectively. |
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Indicating
meter |
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LCD
type
with
0.5'
character
height. |
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Accuracy |
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±
1 db up
to 90 db
and
± 1.5
db above
90 db |
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Resolution |
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0.1
db |
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Power |
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2
Nos. 9V
battery
type 216
or
Eliminator |
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Weight |
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Less
than 500
gms |
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Band
Pass Filter
Specifications:
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Band
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Cut
Off Frequencies |
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Low Pass
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31.5
Hz
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and
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90
Hz
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Hz |
90
Hz
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180
Hz
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| 250
Hz |
190
Hz
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355
Hz
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| 500
Hz |
355
Hz
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710
Hz
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| 1000 Hz |
710
Hz
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1400
Hz
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| 2000 Hz |
2600
Hz
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5600
Hz
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High Pass
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5600
Hz
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8000
Hz
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Attenuation:
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±0.5 db with
in center half
of an
octave
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-3 db ±0.5 db at nominal cut off frequencies
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-20 db at frequencies one hald and twice mid band frequencies
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-40 db at frequencies one fourth and 4 times mid band
frequencies.
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-60 db at frequencies one eight and times the mid band
frequencies.
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