Tenmars TM-102 Bedienungsanleitung

DIGITAL CLAMP METER

TM-102

User’s manual

HB2TM1020010

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

TM-102

EN-1

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 IEC651 Type2, ANSI S1.4

Type2 for Sound Level Meters.

This Sound Level Meter has been designed to meet the

measurement requirements of safety Engineers, Health,

Industrial safety offices and quality control in various

environments.



Ranges from 30dB to 130dB at frequencies between

31.5HZand 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：0.1dB, Display Update：0.5 sec.

b. Standard applied：IEC651 Type2, ANSI1.4 Type2.

c. Frequency range：31.5Hz~8KHz.

d. Measuring level range：A Weighting 30 ~130dB.

C Weighting 35~130dB.

e. Frequency weighting：A/C.

f. Microphone：1/2 inch Electret condenser

microphone.

g. Time weighting：FAST(125mS),SLOW(1 sec).

h. Level ranges：30 ~130dB(Auto Range).

i. Accuracy：±1.5dB.

j. Dynamic range：50dB.

TM-102

EN-2

k. MAX/MIN：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 Indication: Replace battery as LCD

display “ ”.

n. Power Supply：9V NEDA 1604，IEC 6F22,JIS

006P battery×1pcs.

o. Power Life : About 50 hrs (alkaline Battery).

p. Operation height：2000M under the elevation

above sea level.

q. Operation temperature＆Humidity：5℃~40℃,

below 80﹪RH。

r. Storage Temperature＆Humidity：-10℃~60℃,

below 70﹪RH。

s. Dimension: 200mm(L)x55mm(W)x38mm(H).

t. Weight: About 170g. (Including batteries)

u. Accessories: User’s manual、carrying case 、9V

Battery, windscreen.

TM-102

EN-3

1. Windscreen

2. Display

3. DATA HOLD button

4. Frequency weighting

select button

5. Time weighting select

button

6. Maximum/Minimum

hold button

7. Backlight button

8. Power button

9. Microphone

10. Battery Cover

2. NAME AND FUNTIONS

1. Windscreen

If you operate at wind speed over 10m/sec, please

put protective accessories-windscreen in front of

the microphone.

5 6

TM-102

EN-4

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. Sound level read out

2. Display

3. Power button.

The key for 1sec to turn the sound level meter ON

or OFF. The auto power will be off automatically

after 5 minutes idle time

4. MAX/MIN hold button

4.1 Press it to select the maximum, minimum or

current reading. Press for more 1 second to

return normal measurement.

4.2 The MAX/MIN function will be disable if:

The MAX/MIN is pressed for more than 1 second.

Turn off the meter.

5 Frequency Weighting select button.

A：A-Weighting. For general sound level

measurements. C：C-Weighting. For checking

the low-frequency content of noise.(If the C-

Weighted level is much higher than the A-

weighted level, then there is a large amount of

low-frequency noise)

6 Time weighting select button.

FAST：for normal measurements.

b c d e

h g

TM-102

EN-5

SLOW：for checking average level of fluctuation

noise.

7 HOLD button.

The reading data shown on LCD can be locked

while pressing the button.

8 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.

9 Microphone

1/2 inch Electret Condenser microphone.

10 Battery cover

TM-102

EN-6

3. CALIBRATION PROCEDURES

Using a standard Acoustic Calibrator(94dB,1KHz Sine

wave)

1. Make the button settings. Display：dBA

Time weighting：FAST

2. Insert the Microphone nozzle carefully into the

insertion hole of the calibrator.

3. 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.

4. When LCD blinked, release the A/C and the HOLD

buttons. The sound level meter will display 94.0

dBA . The calibration is done.

coustic calibrator

Sound level meter

TM-102

EN-7

5. The 94 dB calibration process can be repeated until the

meter reads 94.0 dB. Recalibration cycle：1 year.

4. MEASUREMENT PREPARATION

1. Battery Loading

Remove the battery cover on the back and put in

one 9V Battery.

2. Battery Replacement When the battery voltage

drops below the operating voltage, the mark

appears. If it appears, battery should be replaced

with new one.

5. OPERATING PRECAUTIONS

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.

2. Calibrate the instrument before operation if the

instrument was not in use for a long time or

operation at bad environment.

3. Do not store or operate the instrument at high

temperature and high humidity environment.

4. Keep microphone dry and avoid severe vibration.

5. Please take out the battery and keep the instrument

in low humidity environment. When it is not in use.

TM-102

EN-8

6. MEASUREMENT

1. Open battery cover and install a 9 Volt battery in

battery compartment.

2. Turn on power and select the desired response

time and weighting. If 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.

3. When MAX/ 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 ”

MIN” symbol disappears.

4. Turn off the instrument and remove the battery

when it is not in use.

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