background image

407780A

EU

EN

 

v1.3

   

4/14

 

 

10

Setting

 

the

 

Current

 

Time

 

and

 

Date

 

Date

 

and

 

time

 

information

 

is

 

stored

 

with

 

each

 

stored

 

record

 

block.

 

Therefore,

 

it

 

is

 

important

 

to

 

ensure

 

that

 

this

 

information

 

is

 

correct.

 

1.

 

Press

 

 

to

 

switch

 

OFF

 

the

 

meter.

 

2.

 

Press

 

and

 

hold

 

the

 

DATE

 

TIME

 

button

 

and

 

then

 

press

 

the

 

 

button

 

to

 

switch

 

ON

 

the

 

meter

 

to

 

enter

 

the

 

date

 

and

 

time

 

setting

 

mode.

 

3.

 

A

 

flashing

 

cursor

 

indicates

 

the

 

currently

 

selected

 

parameter

 

(seconds),

 

use

 

the

 

▲▼

buttons

 

to

 

set

 

the

 

current

 

second.

 

4.

 

Press

 

the

 

DATE

 

TIME

 

button

 

to

 

move

 

to

 

the

 

next

 

parameter

 

(minutes)

 

and

 

use

 

the

 

▲▼

buttons

 

to

 

set

 

the

 

current

 

minute.

 

5.

 

Repeat

 

step

 

4

 

to

 

set

 

the

 

current

 

hour,

 

day,

 

month,

 

and

 

year.

 

6.

 

Press

 

DATE

 

TIME

 

to

 

store

 

the

 

new

 

date

 

and

 

time,

 

and

 

to

 

exit

 

this

 

mode.

 

 

Recording

 

Data

 

In

 

the

 

Integrating

 

Sound

 

Level

 

Meter

 

mode

 

the

 

meter

 

can

 

record

 

and

 

store

 

measurement

 

data.

 

Memory

 

capacity

 

is

 

32000

 

records

 

which

 

can

 

be

 

stored

 

in

 

up

 

to

 

255

 

blocks.

 

Recording

 

can

 

start

 

when

 

integration

 

begins

 

or

 

at

 

a

 

preset

 

time.

 

The

 

stored

 

data

 

cannot

 

be

 

viewed

 

on

 

the

 

meter’s

 

display;

 

it

 

must

 

be

 

downloaded

 

using

 

the

 

supplied

 

PC

 

software.

 

1.

 

Setting

 

the

 

data

 

sampling

 

rate.

 

a)

 

Press

 

the

 

 

button

 

to

 

switch

 

OFF

 

the

 

meter.

 

b)

 

Press

 

and

 

hold

 

the

 

INTEG

 

TIME

 

button

 

and

 

then

 

switch

 

the

 

meter

 

ON,

 

the

 

Intr

 

symbol

 

and

 

the

 

sample

 

rate

 

in

 

seconds

 

will

 

be

 

displayed.

 

c)

 

Use

 

the

▲▼

buttons

 

to

 

set

 

the

 

sampling

 

rate

 

(1

 

to

 

255

 

seconds).

 

d)

 

Press

 

INTEG

 

TIME

 

to

 

store

 

the

 

setting

 

and

 

exit

 

this

 

mode.

 

2.

 

Set

 

the

 

integrating

 

functions

 

as

 

described

 

previously.

 

3.

 

Press

 

the

 

RECORD

 

ERASE

 

button

 

to

 

prepare

 

for

 

recording.

 

The

 

REC

 

symbol

 

will

 

appear

 

on

 

the

 

display.

 

4.

 

Press

 

the

 

 ‖

 

button.

 

The

 

measurements

 

will

 

start

 

and

 

the

 

REC

 

symbol

 

will

 

begin

 

to

 

flash,

 

indicating

 

that

 

data

 

are

 

being

 

stored.

 

5.

 

If

 

integration

 

is

 

paused,

 

recording

 

will

 

also

 

pause.

 

6.

 

When

 

the

 

memory

 

is

 

filled

 

(32000

 

data

 

points

 

or

 

255

 

blocks

 

used),

 

the

 

REC

 

FULL

 

symbol

 

will

 

be

 

displayed.

 

 

www.

.com

[email protected]

1.800.561.8187

Содержание 407780A

Страница 1: ...USER GUIDE Integrating Sound Level Meter and Datalogger Model 407780A www com information itm com 1 800 561 8187 ...

Страница 2: ...ich permit sound level measurements under a variety of conditions Features include Five measurement ranges Fast Slow and Impulse time weighting settings A and C frequency weighting settings Storage of up to 32000 measurement records USB serial port for downloading records to a computer or real time analysis AC DC signal outputs are available from a single standard 3 5mm coaxial socket suitable for...

Страница 3: ...d use Protect the instrument from air with high salt or sulphur content gases and stored chemicals as this may damage the delicate microphone and sensitive electronics Always switch the instrument off after use Remove the batteries from the instrument if it is not to be used for a long period of time Do not leave exhausted batteries in the instrument as they may leak and cause damage Clean the ins...

Страница 4: ...itch 8 FAST SLOW IMPULSE time weighting select switch FAST 125ms SLOW 1 second IMPULSE 35ms with slow decay 9 MAX button 10 RECORD ERASE button 11 Real time clock button 12 Integration time button 13 Alarm output 14 AC DC output 15 CAL calibration adjustment 16 External power input USB input located on bottom not shown Tripod mounting screw located on rear not shown Battery cover located on rear n...

Страница 5: ...ator displays L 05 L 10 L 50 L 90 or L 95 4 Leq Equivalent continuous sound level reading 5 SEL Sound exposure level reading 6 SPL Time weighted sound level reading Sound Pressure Level 7 Low battery indication 8 MAX When displayed flashing it indicates that the Maximum time weighted sound level reading is shown When it is displayed solid it indicates that the Maximum sound level reading is displa...

Страница 6: ...ing session 17 SLOW Slow time weighting indicator 18 FAST Fast time weighting indicator 19 Indicates that integrating sound level measurements have been stopped 20 Indicates that integrating sound level measurements are paused 21 Start and continuous integrating measurement indicator 22 UNDER Under range indicator appears flashing when under range measurements have been included in the sound level...

Страница 7: ...surement the upper limit of the selected range has been exceeded Increase the range setting until the symbol remains off during measurements Similarly if the UNDER indicator appears reduce the range setting until the symbol remains off Both indicators are non latching and will clear when the correct range is selected 5 Hold the instrument comfortably in hand away from the body or position it on a ...

Страница 8: ... select the desired dB range Choose a setting in which the bar graph indication registers near the middle of the range If the OVER or UNDER indicators switch ON frequently change the level range setting 5 Setting the integrating measurement time Default or Manual Default times a Press the INTEG TIME button once to select a default integrating time b Use the buttons to select the measurement time c...

Страница 9: ...before starting the measurement Pause intervals are not included in the measurement time 7 When the measurement is completed paused or in progress press the Leq SEL SPL button to cycle through and display the following measurement results Leq Equivalent continuous sound level with start measurement time SEL Sound exposure level with terminate measurement time SPL MAX Maximum sound level with time ...

Страница 10: ...s 32000 records which can be stored in up to 255 blocks Recording can start when integration begins or at a preset time The stored data cannot be viewed on the meter s display it must be downloaded using the supplied PC software 1 Setting the data sampling rate a Press the button to switch OFF the meter b Press and hold the INTEG TIME button and then switch the meter ON the Intr symbol and the sam...

Страница 11: ...er 2 Press and hold the RECORD ERASE button and then press the button to switch ON the meter 3 The CLr symbol will appear on the display indicating that the data have been erased Analog outputs The analog outputs provide analog signals proportional to the measured values for recorders and other devices The outputs require a 3 5mm stereo mini plug AC Output An AC signal corresponding to the frequen...

Страница 12: ...asurement errors Such effect can be reduced by using the windscreen Tripod Mounting For long term measurements the instrument may be mounted on a standard camera tripod using the rear integral x 20 UNC mounting thread Alarm output If the measured dB level exceeds the set limit the over limit signal will appear at the alarm output connector 5Vdc output The output signal will remain active as long a...

Страница 13: ... ON 4 Adjust the meter s calibration potentiometer as shown in the accompanying diagram until the meter s display matches the acoustical calibrator output signal typically 94 or 114dB 5 Switch the calibrator OFF 6 Remove the calibrator from the microphone very slowly to avoid damaging the microphone 7 In cases where adjusting the potentiometer does not affect the displayed reading or where the adj...

Страница 14: ... 4 Replace and secure the battery cover 5 Press the button to switch ON the instrument Check for correct operation Never dispose of used batteries or rechargeable batteries in household waste As consumers users are legally required to take used batteries to appropriate collection sites the retail store where the batteries were purchased or wherever batteries are sold Disposal Do not dispose of thi...

Страница 15: ...el A or C SPL MAX Maximum sound pressure level A or C SPL MIN Minimum sound pressure level A or C PH Peak Hold sound pressure level A or C L 05 5 percentile sound level A or C L 10 10 percentile sound level A or C L 50 50 percentile sound level A or C L 90 90 percentile sound level A or C L 95 95 percentile sound level A or C SPL MAX Maximum time weighted sound pressure level MAX symbol blink Meas...

Страница 16: ...s 44 dB FREQUENCY Hz WEIGHTING L O R dB WEIGHTING L O R dB 31 5 A 36 1 50 6 C 39 5 87 0 1000 A 36 1 90 0 C 39 5 90 0 4000 A 36 1 90 0 C 39 5 89 2 8000 A 36 1 88 9 C 39 5 87 0 RANGE 40 100 dB Test starting point 74 dB for all weightings and frequencies except 31 5Hz A weighted for which the starting point is 54 dB FREQUENCY Hz WEIGHTING L O R dB WEIGHTING L O R dB 31 5 A 40 0 60 6 C 40 0 97 0 1000 ...

Страница 17: ... 70 0 129 2 8000 A 70 0 128 9 C 70 0 127 0 Frequency range Overall characteristics including microphone 31 5 to 8000Hz Frequency weighting A meets the requirement of IEC 61672 1 for class 2 A weighting C meets the requirement of IEC 61672 1 for class 2 C weighting Time weighting RMS detection Fast according to IEC 61672 1 class 2 Slow according to IEC 61672 1 class 2 Impulse according to IEC 61672...

Страница 18: ...dication of current sound level with 1dB resolution Sound level range indicator 30 90dB 40 100dB 50 110dB 60 120dB or 70 130dB in five ranges Time display year month day and hour minute second Display update rate 1 second Display s start up indication Depends on the condition of meter when it was last switched off Warning indications Out of range indications OVER displayed at upper limit of the ra...

Страница 19: ...eld No noticeable effect Standards Compliance indicates compliance with applicable European Union Directives EMC Emission IEC 61000 6 3 Generic emission standard for residential commercial and light industrial environments No significant emissions from the instrument IEC 61672 1 Instrumentation standard classification group X and performance class 2 sound level meter EMC Immunity IEC 61000 6 2 Gen...

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