TES TES-1354 Manual de usuario
Personal Noise Exposure
Model: TES-1354
INSTRUCTION MANUAL
TABLE OF CONTENTS
1. GENERAL DESCRIPTION....................................................... 1
2. PRINCIPLE OF MEASURING ACCUMULATED NOISE
EXPOSURE .......................................................................................1
3. FEATURES ................................................................................ 2
4. SPECIFICATION....................................................................... 2
5. NOMENCLATURE
AND FUNCTIONS .................................. 5
6. DISPLAY PANEL DESCR IPTION ......................................... 7
7. MEASUREMENT
PREPARATION ......................................... 8
8. OPERATING INSTRUCTIONS................................................ 8
9. CALIBRATION PROCEDURES ............................................10
10.MODE SETTING .....................................................................11
11.USING THE PERSONAL NOISE EXPOSURE METER............ 11
12.MAINTENANCE ..................................................................... 12
1
1. GENERAL DESCRIPTION
Thanks for your selecting Personal Noise Dosemeter. To
ensure that you can get the most from it we recommend that you
read the manual carefully before use.
The personal noise dosimeter is test equipment to evaluate the
noise condition of working environment by measuring the
accumulated noise exposure. With this test data, company can
ensure the related noise regulation is followed or decide whether
or not to apply certain noise reduction action to avoid the acoustic
trauma and noise-induced hearing loss occurs to the working
personnel.
2. PRINCIPLE OF MEASURING ACCUMULATED
NOISE EXPOSURE
DOSE is a parameter used to quantify noise exposure
measured during a period, in turns of % noise exposure relative to
90dBA for 8 hours.
i.e. 100% DOSE = 90dBA for 8 hours
This is known as the Criterion. Other criterion are
available such as 100% DOSE = 85dBA for 8 hours to meet
legislation in different countries.
If the person stayed in this environment for 4 hours, he
would receive 50%DOSE.
Also if the noise level was say 93dBA, 3dB higher, a 100% DOSE would be
accumulated in only 4 hours, The above example is for a dosemeter with 3dB
Exchange Rate, where a 3dB increase in sound level corresponds to a
doubling energy. A dosemeter with 5dB Exchange Rate is also, available
where the sound must increase by 5dB to double the dose as required to meet
noise legislation in some countries.
2
3. FEATURES
(1)
Measures personal accumulated noise exposure in a period
with the unit of % noise dose.
(2)
70
〜
140 dBA sound level measurement.
(3)
Accurate, easy to use and understand.
4. SPECIFICATION
Standard applied : ANSI S1.25-1991 A-weighting
ISO-1999
BS 6402: 1983
Microphone: 1/2 inch electret condenser
microphone, 31-inch cable.
Display : Liquid Crystal Display
Noise DOSE Range: .01 to 9999 % DOSE
Criterion Level: Selectable 80 , 84 , 85 , 90dB
Threshold Level: Selectable 70
〜
90dB, 1dB step
Exchange Rate: Selectable 3 , 4 , 5 , 6dB
High Level Detector: 115dBA
Peak Flag: 140dBA
3
Measuring Range of Sound Level: 70-140dBA
Accuracy :
±
1.5dB
Frequency Weighting: A
Frequency Response: 20Hz
〜
10KHz
Time Constant : F(FAST) ; S(SLOW)
Operating Temperature & Humidity:
0
〜
50
℃
(32 to122
℉
),
10
〜
90%RH
Storage Temperature & Humidity:
-10
〜
60
℃
(14to140
℉
),
10
〜
75%RH
Battery : 4pcs. size AAA alkaline batteries
Battery Life: about 40 hours
Size: 106(L)
×
60(W)
×
34(H)mm
4.2(L)
×
2.4(W)
×
1.3(H)inch
Weight: Approx. 350g (including batteries)
Accessories: Instruction manual, Carrying case,
Screwdriver, batteries
4
CE Certification:
CE-mark indicates compliance EMC Directive
Safety
EN61010-1 (1993) and IEC 1010-1 (1990): Safety
requirements for electrical equipment for measurement,
control and laboratory use
EMC
Emission
EN50081-1 (1992): Generic emission standard.
Part 1 : Residential, commercial and light industry
EN50081-2 (1993): Generic emission standard.
Part 2: Industrial environment
CISPR22 (1993): Radio disturbance characteristics of
information technology equipment. Class B Limits
FCC Rules, Part 15: Complies with the Limits for a
Class B digital device
EMC
Immunity
EN50082-1 (1992): Generic immunity standard.
Part 1: Residential, commercial and light industry
RF immunity implies that sound level indications of
70dB or greater will be affected by no more than
±
1.5dB
EN 50082-2 (1995): Generic immunity standard.
Part 2: Industrial environment RF immunity implies that
sound level indications of 70dB or greater will be
affected by no more than
±
1.5dB
5
5. NOMENCLATURE AND FUNCTIONS
Fig 1
6
Microphone
Display panel
Power switch
Instantaneous of sound pressure level
Press the key to starts accumulating noise exposure.
Press the key and hold 3 seconds to stops accumulating noise
exposure.
DOSE is a parameter used to quantify noise exposure
measured in a period with the unit of % noise exposure .
The total time means accumulated running time, the
colon will blink and display will show hours and minutes.
CAL screw
Battery cover
11
Carrying clip
7
6. DISPLAY PANEL DESCR IPTION
Fig 2
DOSE sign
Displayed when a sound pressure level is over 140dBA
Run time for DOSE measurement
SPL sign
Displayed when a sound pressure level is over 115dBA
Battery energy condition indicator
Fast or Slow response time constant
Indication of noise exposure is now been accumulated
Measurement interruption of noise exposure
8
7. MEASUREMENT PREPARATION
(1)
Load Battery
Unscrew the big screw on the back of the unit and remove the
carrying clip. Insert four AAA-size alkaline batteries.
Note: Make sure the battery polarity is installed as indicated.
(2)
Battery replacement
When the batteries is down, a low battery mark flash in
the display. Batteries should be replaced with new ones.
(3)
The battery symbol shows the remaining capacity the
battery by the number of segments. The relative of the
remaining capacity and the number of segments are show as
below.
Four segments --- over 84% capacity remaining
Three segments --- over 66% capacity remaining
Two segments --- over 25% capacity remaining
One segments --- over 11% capacity remaining
Empty battery --- Instrument specification not
guaranteed.
8. OPERATING INSTRUCTIONS
Power the instrument on by pressing the key.
When you switch on this instrument, you will see all of the
annunciator, DOSE sign and the set Criterion level ( ),
Threshold level ( ), Exchange rate ( ) information.
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