Page 1
SOUND LEVEL
METER
User's manual
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HB2TM1
02001
Page 2
CONTENTS
1.
General Description & Specifications............ 1
2. Name
and
Funtions .................
3
3. Calibration Procedures ............
6
4. Measurement Preparation .................. .......... 7
5. Operating
precautions
.............7
6. Measurement................ ...........8
7. END
OF
1lFE....... ....................8
Page 3
TEi$vlAf:s
TM-102
Thank
you
for
using our Sound Level Meter.
To ensure that
you
can
get
the most from it, we
recommend
that
you
read and follow the manual
carefully before use.
This unit conforms
to the IEC 61672-1
class
2
standard
,
lEC651 Type2,
ANSI 51.4 Type2 for
Sound
Level
Meters.
This Sound Level
Meter has been
designed
to meet
the
measurement
requirements
of safety Engineers, Health,
lndustrial safety
offices and
quality
control
in various
environments.
.
Ranges from
30dB to 1 30dB at frequencies
between
31
.SHZand
8 KHZ .
.
Display with
0"1dB steps on a 4 digits LCD.
.
With
two equivalent weighted
sound
pressure
levels,
A and C.
1. GENERAL
DESCRIPTION &
SPECIFICATIONS
a. Display:4 digits LCD with maximum/minimum,
Resolution:0.1d8,
Display Update:0.5 sec.
b. Standard
applied:lEC 61672-1 class 2 standard
and
lEC651
Type2, ANS|1.4 Type2.
Frequency range:31
.5Hz-BKHz.
Measuring
level range:A Weighting
30
-130d8.
C Weighting
35-130d8.
Frequency weighting:A,/C.
Microphone:1/2
inch Electret condenser
microphone.
Time weighting:FAST(1
25mS),SLOW( 1 sec).
Level ranges:3O
-1
3OdB(Auto Range).
?Elurtqttril*
TM-102
i. Accuracy:+1.5d8.
j.
Dynamic range:S0dB.
k. MM/MlN:Hold
readings
for the Maximum and
Minimum value.
l. DATA HOLD:The
reading data
shown on LCD can
be locked while
pressing
the button
m. Low Battery lndication:
Replace battery as
LCD
display
"Etr".
n. Power Supply:9v
NEDA 1604,1EC 6F22,JlS
006P
batteryx
1
P6s.
o.
Power Life:About 50
hrs
(alkaline
Battery).
p.
Operation
height:2000M under
the elevation above
sea level.
q.
Operation
temperature
& Humidity:5'C-40"C,
below 80%RH
"
r. Storage
Temperature&Humidity:-10"C
-60"C,
below
70%RH
"
s. Dimension: 200mm(L)x55mm(W)x38mm(H).
t.
Weight: About 1709.
(lncluding
batteries)
u. Accessories:
lnstruction
manual, carrying case
,
9V Battery, windscreen.
c.
d.
e.
f.
s.
h.
EN-1
EN.2
Page 4
2.
NAME
AND
FUNTIONS
.---@
!;
ir:
1. Windscreen
lf
you
operate
at wind
speed
over 10m/sec,
please
put protective
accessories-windscreen
in
front
of
the microphone.
TehFttAfEi
TM_102
a. Low
battery
indicaiion
b.DATA
HOLD
indication
c.
Maximum
indication
d.Minimum
indication
e.A-Weighting
f.
C-Weighting
g.Slow
response
h.Fast
response
i. Sound
level
read
out
Power
button.
The
key for
'lsec
to
turn the
sound level
meter
ON
or OFF.
The auto
power
will be
off automatically
after
5 minutes idle
time
MAX/MlN
hold button
Press
MAXMIN
button
to enter
the
maximum
and
minimum
recording
mode.
Press
once
to select
MAX
value. Press
again
to
select MIN
value,
Press
again
to exit
the MAX/MIN
mode.
Frequency
Weighting
select button.
A
:
A-Weighting.
For
general
sound
level
measurements.
C:C-Weighting.
For
checking
the
low-frequency
content of
noise.(lf
the
C-Weighted
level
is much
higher
than the
A-weighted
level,
then
there is
a large
amount
of low-frequency
noise)
Time weighting
select
button.
FAST:for
normal measurements.
SLOW:for
checking
average
level
of fluctuation
noise.
HOLD
button.
EN-4
1.
2.
J.
4.
E
o.
7.
6-
9.
10.
11.
Windscreen
Display
DATA HOLD
button
Frequency
weighting
select
button
Time
weighting
select
button
Maximum/Minimum
hold
button
Backlight
button
Power button
Microphone
Battery
Cover
Tripod
socket
1
J
6.
7.
Display
EN-3
Page 5
8.
TElSTIAffi
TM-102
The
reading
data shown
on
LCD
can
be locked
while
pressing
the
button.
Backlight
button.
Press the
button
you
enable
the display
backlight
to easy
readings
in
dark environments.
Press
more
than 1 second
to
disable
backlight'
which
however
it automatically
OFF
after
15 seconds.
Microphone
112 inch
Electret
Condenser
microphone.
Battery
cover
TEl{rlAtlg
TM-'102
3. CALIBRATION PROCEDURES
Using a standard Acoustic Calibrator(94dB,1KHz
Sine
wave)
Acoustic
calibrator
Sound level meter
Make the button settings. Display:dBA
Time weighting:FAST
lnsert the Microphone nozzle carefully into
the
insertion
hole of the calibrator.
Press A/C button then
press
the HOLD
button,
hold
the 2
buttons at the same time more than 1 second,
LCD will be blinking to confirm calibration.
When LCD blinked, release
the
A/C
and the HOLD
bultons. The sound level meterwill display
94.0
dBA . The calibration is done.
EN-6
9.
10.
1.
2.
3.
4.
EN-5
Page 6
1.
6,
1.
2
4.
4.
5.
1.
5.
7.
TEfr$llAff'
TM-102
The 94 dB calibration
process
can be
repeated
until the
meter reads 94.0 dB.
Recalibration cycle:1
year.
MEASU
REMENT
PREPARATION
Battery
Loading
Remove
the battery cover
on the back
and
put
in
one
9V Battery.
Battery
Replacement
When the battery
voltage
drops
below the operating
voltage,
the
mark
F?l
appears.
lf it
appears,
battery
should
be replaced
with
new one.
OPERATING
PRECAUTIONS
Wind blowing
across the
microphone
would
bring
additional
extraneous
noise.
Once using
the
instrument in the
presence
of wind,
it is necessary
to mount
the windscreen
preventing
to
pick
up
undesirable
signals.
To achieve
more accurate
measurement,
use an
extension
cable to separate
the
Microphone
from
the
main body so
that the
effect of unexpected
sound
reflection can be
eliminated.
Calibrate
the instrument
before operation
if the
instrument
was not in use
for a long time
or
operation
at
bad environment.
Do
not store or operate
the instrument
at
high
temperature
and high
humidity environment.
Keep
microphone dry
and avoid
severe
vibration.
Please take
out the battery
and
keep the
instrument
in low humidity
environment.
When
it is not
in use.
TeTwlAlll=;
rM-102
MEASUREMENT
Open battery cover and install a 9 Volt battery in
battery compartment.
Turn
on
power
and select the desired response
time and weighting. lf the sound source consists of
short bursts or only catching sound
peak,
set
response
to FAST. To measure average sound
level, use the slow setting. Select A weighting for
general
noise sound
level
and C
weighting
for
measuring
sound
level of acoustic material-
Hold
the instrument comfortably
in hand
or
fix
on
tripod and
point
the microphone at the suspected
noise
source, the sound
pressure
level will be
displayed.
When MAX MIN
(maximum,
minimum hold) mode
is chosen. The
instrumeni
captures and
holds
the
maximum or minimum noise level . Press once to
select
MAX value. Press
again to select
MIN value,
Press again to exit the MAXMIN mode.
"MAX"
or
"
MlN"
symbol disappears.
Turn off the instrument and
remove
the battery
when it is not in use.
END
OF
LIFE
Caution: this symbol indicates that
equipment and
its
accessories shall be
subject to a separate collection and
correct disposal
J.
4.
5.
6.
X
I
EN-B
EN-7
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