Tenmars TM-103 User manual

TENMARS
Sound Level Meter
Datalogging
TM-l03

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CONTENTS
General Description & Specifications.......... 1
Name and Funtions ................ 3
Calibration Procedures ...........6
Measurement Preparation ........................... 7
Operating precautions ............7
Measurement............................................... 8
Setup User End......................................9
User End Manipulation Menu....................9
TENMARS Tt\4-'10s
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 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.
o Ranges from 30dB to 130d8 at frequencies between
31 .SHZand B KHZ .
o Display with 0.1d8 steps on a 4 digits LCD.
. With two equivalent weighted sound pressure levels,
A and C.
1. GENERAL DESCRIPTION &
SPECIFICATIONS
1.1. Display : 4 digits LCD with maximum/minimum,
Resolution : 0.1d8, Display Update : 0.5 sec.
1.2. Standard applied : lEC651 Type2, ANS| 1.4
Type2.
1.3. Frequency range : 3'l .5Hz-8KHz.
1.4. Measuring level range : A Weighting 30 -130d8.
C Weighting 35-130d8.
1.5. Frequency weighting : A,/C.
1.6. Microphone : 1/2 inch Electret condenser
microphone.
1.7. Time weighting : FAST(125mS),SLOW(1 sec).
1.8. Level ranges : 30 -130d8(Auto Range).
1.9. Accuracy : t1.sdB.
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TENMARS Tt\,l- 103
1.10. Dynamic range : 50d8.
1.11. MA)UMIN : Hold readings for the Maximum and
Minimum value.
1.12. DATA HOLD : The reading data shown on LCD
can be locked while pressing the button
1 .13. REo:According io the timing that is setup by user
to save the data.
1.14. Low Battery lndication: Replace battery as LCD
display'E!".
1.15. Power Supply : 9V NEDA 1604 ' IEC 6F22'JlS
006P batteryxl pcs.
1.16. Power Life : About 50 hrs (alkaline Battery)
1.17. Operation height : 2000M under the elevation
above sea level.
1 .18. Operation temperature & Humidity : 5'C -40 C ,
below 809,i RH "
1 .19. Storage Temperature & Humidity : -1 0.C -60'C ,
below 70% RH .
1.20. Dimension: 200mm(L)x55mm(W)x38mm(H)
1.21. Weight: About 1709. (lncluding batteries)
1.22. Accessories: lnstruction manual ' carrying
case . 9V Battery, windscreen.
TENMARS
2. NAME AND FUNTIONS
2.1. Windscreen
lf you operate at wind speed over 1Om/sec,
please put protective accessories-windscreen in
front of the microphone.
I "' i, .[,:ifJ**,*",
.,, ,! u .lil:il;l:l'''.n
1ffMh ...^.,,,".,. 6. Maximum/Minimum
ffi' -?i 7 n3ffliJ'n",1,u""
ffi 8. power bution.
&*@, L REC button
4e . . 10. RS-232 lnterface
r;@', IirzConnector
11. Microphone
12. Battery Cover
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ef
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HOLD button.
The reading data shown on LCD can be locked
while pressing the button.
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{requency noise)
Time weighting select button.
FAST : for normal measurements.
SLOW : for checking average level of fluctuation
noise.
MA)?MIN hold button
r Press the key to activate the function. The
"MAX" symbol appears on the display and
instrumenl measures and show the Maximum
TENMARS Tt\,l-103
value of parameter which automatically updates
iiself when a larger value is measured.
I Press the key again and the "MlN" symbol
appears on the display and the instrument
measures and displays the Minimum value of the
parameter which automatically updates itself
when a lower value occurs.
r The MA)(/MlN function will be disable if:
The MAXMIN is pressed for more than 1
second.
Turn off the meter.
2.7. 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.
2.8. Power button.
The key for 'l sec to turn the sound level meter
ON or OFF. The auto power will be off
automatically after 5 minutes idle time
2-9. REC button
Press the button to start recording data and press
REC again to stop recording.
THE MINIMAL INTERVAL IS 1 SECOND AND
MAXIMUM INTERVAL TIME IS 7 HOURS 59
MINUTES AND 59 SECONDS
2.1 0. RS-232 lnterface Connector
RS-232 interface with a personal.
2.11. Microphone
1/2 inch Electret Condenser microphone.
2.12. Battery cover
2.2. Di spl ay
b
2.5.
a. Low battery indication
b.DATA HOLD
indication
c.Maximum indication
d.Minimum indication
e.A-Weighting
f. C-Weighting
g.Slow response
h. Fast response
i. REC response
i. Sound level read out
2.4.
HOLD [/rAX i dBA
F:n MtN -r dBc
F.ff.ff
Fast Slow
2.6.
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TENMAR5 TENMARS TM-1 03
3.5. When LCD blinked, release the A,/C and the
HOLD buttons. The sound level meter will display
94.0 dBA. The calibration is done.
3.6. The 94 dB calibration process can be repeated until the
meter reads 94.0 dB. Recalibration cycle : 1 year.
4. MEASUREMENTPREPARATION
4.1. Battery Loading
Remove the battery cover on the back and put in
one 9V Battery.
4.2. Battery Replacemeni When the battery voltage
drops below the operating voltage, the mark Ffi
appears. lf it appears, battery should be replaced
with new one.
5. OPERATING PRECAUTIONS
5.1. 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.
5.2. 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.
5.3. Calibrate the instrument before operation if the
instrument was not in use for a long time or
operation at bad environment.
5.4. Do not store or operate the instrument at high
temperature and high humidity environment.
5.5. Keep microphone dry and avoid severe vibration.
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3. CALIBRATION PROCEDURES
3.1. Using a standard Acoustic Calibrator (94d8,
l KHz Sine wave)
t-il
i ffi- Acoustic calibrator
fl
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Sound level meter
Make the button settings. Display : dBA
Time weighting : FAST
lnsert the Microphone nozzle carefully into the
insedion 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.
3.2.
3.3.
3.4.
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5.6. Please take out the battery and keep the
instrument in low humidity environment. When it
is not in use.
6. MEASUREMENT
6.1. Open battery cover and install a g Volt battery in
battery compadment.
6.2. 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.
6.3. Hold the instrument comfodably in hand or fix on
tripod and point the microphone at the suspected
noise source, the sound pressure level will be
displayed.
6.4. When MA)V MIN (maximum, minimum hold)
mode is chosen. The instrument 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
MAX/MIN mode. "MAX" or " MlN" symbot
disappears.
6,5. Turn off the instrument and remove the battery
when it is not in use.
7. SETUP USER END
7.1. The User End package contains
I Custom designed RS-232 cable for User End
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T€NI*IAR'S Tt\,4-103
System Required
r Windows 2000, Windows XP
Minimum Hardware Required
I Pentium lll 500MHZ PC compatible, or above
12BMB RAM; At least 1OMB hard disk space
available to install User End program.
Recommended display resolution is 800X600 or
above
8. USER END MANIPULATION MENU
7.2.
7.3.
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TENMARS TM-103
8.1. Tool Bar
Tool bar section has 6 buttons:
[Conneci To Meter] fDownload All Records]
[Erase All Records] lUpdate Meter Date/Time]
[Save Records to File] [Print]
Use button [Connect to meter] to connect meter and
PC. This step is the first step to use this software.
Use button [Download All Records] to download
records from Meter to Local computer.
Use button [Erase All Records] to erase all the records
saved in memory.
Use button [Update Meter Date/Time] to let the time in
meter to be same with the computer time. Remember if
the battery is taken out, the clock in the meter will stop.
Please do time re-setup and load it into the meter after
replacement or removed of battery.
Use button [Save Records to File] to export the
records from the list box to txt file. This button will be
enabled after downloading records.
Use button [Print] to print all the downloaded data.
TENI'IARS TN/-1 03
8.2. Sound Meter Real Data
Real time data section is used to displayed real time
data including dB value, dBfudBC status, Fasvslow
status, HOLD, REC, MN0MIN status.
Current meter situation including total group and total
records in the memory, interval, meter date and time,
are also displayed at the left side.
8.3. Group information Data
Group information daia section is used io display
selected group information including start time, end time,
dba/dbc status, records number in selected group'
8.4. Status Message
Status message is to display current mete status such
as recording, connected, disconnected,
8.5. Sound Meter Setting Data
This section is used to set interval into meter.
8.6. Records Data
Data will be downloaded into this section after
[download records] button is pressed
8.7. Connected Signal
The light is used indicated connection status. Green
means connected, red means disconnected.
Procedure to install USER END SOFTWARE
1. Place ihe setup disc into the CD-ROM.
2. Double click "setup.exe" in the CD-ROM.
3. After finishing setup process, go to stad--all I
programlData Logger\sound meter "to run the I
Program. v/
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