DAP Audio 91004 User manual

Brand: DAP Audio

Model: 91004

Type: User manual

This manual is also suitable for

Digital Sound Level Meter V1

DAP Audio 91004 is a professional-grade digital sound level meter designed to measure sound pressure levels in a wide range of applications, including live sound engineering, industrial noise monitoring, and environmental noise assessment. With its high accuracy, wide dynamic range, and versatile feature set, the DAP Audio 91004 is an essential tool for anyone who needs to measure sound levels accurately and reliably.

Some of the key features of the DAP Audio 91004 include:

Auto/manual ranging for optimal accuracy across a wide measurement range
Fast/slow response time weighting for capturing both transient and steady-state sound levels

Some of the key features of the DAP Audio 91004 include:

Auto/manual ranging for optimal accuracy across a wide measurement range
Fast/slow response time weighting for capturing both transient and steady-state sound levels

Digital Sound Level Meter V1

Highlite International B.V. – Vestastraat 2 – 6468 EX – Kerkrade – the Netherlands

Ordercode: 91004

MANUAL

ENGLISH

Ordercode: 91004

Digital Sound Level Meter

Table of contents

Warning ............................................................................................................................................................................... 2

Unpacking Instructions ................................................................................................................................................. 2

Safety Instructions ......................................................................................................................................................... 2

Operating Determinations .......................................................................................................................................... 3

Return Procedure .......................................................................................................................................................... 4

Claims .............................................................................................................................................................................. 4

Description of the device ................................................................................................................................................. 5

Overview ........................................................................................................................................................................ 6

Installation ........................................................................................................................................................................... 6

Set Up and Operation ....................................................................................................................................................... 7

Replacing batteries ...................................................................................................................................................... 8

Maintenance ...................................................................................................................................................................... 9

Troubleshooting ................................................................................................................................................................. 9

Product Specifications ....................................................................................................................................................10

Dimensions ........................................................................................................................................................................11

Notes ..................................................................................................................................................................................12

Ordercode: 91004

Digital Sound Level Meter

Warning

Unpacking Instructions

Immediately upon receiving this product, carefully unpack the carton and check the contents to ensure

that all parts are present, and have been received in good condition. Notify the dealer immediately and

retain packing material for inspection if any parts appear damaged from shipping or the carton itself

shows signs of mishandling. Save the carton and all packing materials. In the event that a fixture must be

returned to the factory, it is important that the fixture be returned in the original factory box and packing.

Your shipment includes:

 Showtec Digital Sound Level Meter

 1 x carrying case

 User manual

Safety Instructions

Every person involved with the installation, operation and maintenance of this device has to:

 be qualified

 follow the instructions of this manual

Before the initial start-up, please make sure that there is no damage caused by transportation.

Should there be any, consult your dealer and do not use the device.

To maintain perfect condition and to ensure a safe operation, it is absolutely necessary for the user to

follow the safety instructions and warning notes contained in this manual.

Please consider that damages caused by manual modifications to the device are not subject to

warranty.

This device contains no user-serviceable parts. Refer servicing to qualified technicians only.

Ordercode: 91004

Digital Sound Level Meter

IMPORTANT:

The manufacturer will not accept liability for any resulting damages caused by the non-observance of

this manual or any unauthorized modification to the device.

 Never remove warning or informative labels from the unit.

 Do not open the device and do not modify the device.

 Do not disconnect and reconnect the device in short intervals, as this would reduce the device’s life.

 Only use the device indoors, avoid contact with water or other liquids.

 Avoid flames and do not put close to flammable liquids or gases.

 Always remove the batteries, when the device is not used or before cleaning!

 Make sure that the device is not exposed to extreme heat, moisture or dust.

 If the device is dropped or struck, have a qualified engineer inspect for safety before operating.

 If the device has been exposed to drastic temperature fluctuation (e.g. after transportation), do not

switch it on immediately. The arising condensation water might damage your device. Leave the

device switched off until it has reached room temperature.

 If your Showtec device fails to work properly, discontinue use immediately. Pack the unit securely

(preferably in the original packing material), and return it to your Showtec dealer for service.

 Repairs, servicing and electric connection must be carried out by a qualified technician.

 WARRANTY: Till one year after date of purchase.

Operating Determinations

 This device is not designed for permanent operation. Consistent operation breaks will ensure that the

device will serve you for a long time without defects.

 The maximum ambient temperature t

= 40°C must never be exceeded.

 The relative humidity must not exceed 50 % with an ambient temperature of 40° C.

 If this device is operated in any other way than the one described in this manual, the product may

suffer damages and the warranty becomes void.

You endanger your own safety and the safety of others!

Ordercode: 91004

Digital Sound Level Meter

Return Procedure

Returned merchandise must be sent prepaid and in the original packing, call tags will not be issued.

Package must be clearly labelled with a Return Authorization Number (RMA number). Products returned

without an RMA number will be refused. Highlite will not accept the returned goods or any responsibility.

Call Highlite 0031-455667723 or mail aftersales@highlite.com and request an RMA prior to shipping the

fixture. Be prepared to provide the model number, serial number and a brief description of the cause for

the return. Be sure to properly pack fixture, any shipping damage resulting from inadequate packaging is

the customer’s responsibility. Highlite reserves the right to use its own discretion to repair or replace

product(s). As a suggestion, proper UPS packing or double-boxing is always a safe method to use.

Note: If you are given an RMA number, please include the following information on a piece of paper

inside the box:

01) Your name

02) Your address

03) Your phone number

04) A brief description of the symptoms

Claims

The client has the obligation to check the delivered goods immediately upon delivery for any short-

comings and/or visible defects, or perform this check after our announcement that the goods are at their

disposal. Damage incurred in shipping is the responsibility of the shipper; therefore the damage must be

reported to the carrier upon receipt of merchandise.

It is the customer's responsibility to report and submit claims with the shipper in the event that a fixture is

damaged due to shipping. Transportation damage has to be reported to us within one day after receipt

of the delivery.

Any return shipment has to be made post-paid at all times. Return shipments must be accompanied with

a letter defining the reason for return shipment. Non-prepaid return shipments will be refused, unless

agreed otherwise in writing.

Complaints against us must be prepared in writing or sent by fax within 10 working days after receipt of

the invoice. After this period complaints will not be handled anymore.

Complaints will only then be considered if the client has so far complied with all parts of the agreement,

regardless of the agreement from which the obligation is resulting.

Ordercode: 91004

Digital Sound Level Meter

Description of the device

Features

Below, the main features of the Showtec Sound Level Meter.

 Power supply: 6 x 1,5V AAA battery

 LCD digital display

 Analog bar indicator

 Wide dynamic range

 Auto/manual range

 Fast/Slow response selectable

 Max. value Hold function

 A/C weighting selection

 Date and time display

 AC/DC auxiliary output

 Backlight

 Low power indication

 Frequency: 20 Hz - 8 kHz Hz

 Sampling Rate: 2 times/s

 Resolution: 0,1dB

 Accuracy: ±1.5dB

 Response frequency: 31.5Hz—8kHz

 Dynamic range: 50dB

 Frequency weighting: A\C

 Time weighting: FAST 125ms, SLOW 1sec

 Microphone: Electret Condenser microphone

 Digital display: 4 digitals, resolution 0.1dB

 Analog bar display: Each analog bar is as 1dB

 Sampling rate 20 times/s

 Auto-range: Micro-computer can choose the best measurement ranges

 Over range indicator: UNDER(less than range) and OVER (over range )

 AC signal output: 0.707 Vrms at FS (Auto-range mode isn’t included) Output impedance approx.

600Ω

 DC signal output: 10mV/dB Output impedance approx. 100Ω

 Power supply: 6x LR03 AM4 1.5V SIZE AAA alkaline cell

 Power life: About ﹥35hrs(alkaline cells)

 Measurement ranges: 30—80dB, 40—90dB,50—100dB, 60—110dB, 70—120dB,80—130dB.

 AC adapter: Voltage 9vDC

Voltage ripple <100mVpp

Supply Current >100mADC

Socket: pin: Ground

Casing: positive

External Diameter 3.5mm

 Operating temperature: 0 ~ +40℃

 Operating humidity: 10 ~ 80%RH

 Storage temperature: -10 ~ +60℃

 Storage humidity: 10 to 70%RH

 Dimensions: 245 x 80 x 35 mm (LxWxH)

 Weight: 0,35 kg (including batteries)

Accessories:

Earphone plug, Operation manual, Battery, Windscreen, computer RS-232 cable,

software for windows

Ordercode: 91004

Digital Sound Level Meter

Overview

Fig. 01

01) Microphone

02) LCD Display

03) Up Button

04) Down Button

05) Backlight

06) Fast/Slow

07) AC

08) Max

09) ON/OFF

Installation

Remove all packing materials from the Sound Level Meter. Check if all foam and plastic padding is

removed. Connect all cables.

Always remove the batteries before cleaning and/or servicing or if the device is not used for a longer

period of time. Damages caused by non-observance are not subject to warranty.

Ordercode: 91004

Digital Sound Level Meter

Set Up and Operation

Follow the directions below, as they pertain to your preferred operation mode.

Make sure that you use 1,5V AAA alkaline batteries.

Please use it according to the following usage.

Environment conditions:

 Altitude: less than 2000 meters.

 Relatively humidity 80% max

 Operation temperature 0 ~ 40℃

01) The meter has been designed according to the IEC651 Type 2, ANSI S1.4 Type 2.

02) Measurement range is from 30dB to 130dB and automatic ranging.

03) Two equivalent weighted sound pressure levels, A and C

04) Corresponsive rate select: FAST/SLOW

05) Maximum value locked

06) Record data in memory: 16000 data, extended up to 128000 data according to user’s demand.

07) Infrared interface for connecting with a computer

08) Computer software for data displaying and data recording on a computer.

09) Clock and calendar function

10) AC and DC analog signals output, which can be linked to frequency analyser or X-Y axis recorder.

11) Background light for working in the night. To save power, the background light shines for 5 seconds,

then closes automatically.

12) Secondary plasticizing meter shell

13) Good circuit designed to save power, the battery can be used for a long time.

Preparation before using

01) Remove the battery cover on the back and put in six 1.5V alkalescent batteries.

02) Close the battery cover.

03) When the battery voltage drops below the operating voltage, a battery icon will start flashing

on the display. The current batteries are depleted, please replace all batteries with new ones.

04) When the DC adapter is used, insert the adapter plug into the DC9V connector on the side panel.

The method of usage

01) Press the power button, the LCD displays the default range (40~90dB) and the sound level of a spot.

If the “UNDER” or “OVER” symbol appears on the display, it indicates the sound level is less than or

more than 40~90dB,. That means the measurement is invalid. you need to set the meter’s range to a

correct position.

02) Set range:

Press LEVEL ▲ or ▼, choose the proper range, measure the sound level of the desired spot.

When the “UNDER” symbol appears on the display, it means that the range is high, you need to press

LEVEL▼ to set a lower range until the “UNDER” symbol disappears.

When the “OVER” symbol appears, it means that the range is low, you need to press LEVEL▲ to set a

higher range until the “OVER” symbol disappears.

03) Choose weighting mode:

When you measure a general noise sound level, you could choose ‘A’ weighting by pressing the A∕C

button. To measure an acoustic sound level , choose “C”.

04) When you want to get a real-time sound level measurement, choose FAST by pressing the FAST∕SLOW

button. To get an average sound level, choose “SLOW”.

05) When you want to get the maximum value of a sound level measurement, you have to press the

“MAX” button.

06) When you want to measure in dark surroundings or at night, you can activate the background light

by pressing “LIGHT” button.

Ordercode: 91004

Digital Sound Level Meter

Record and storage of measured data

01) To save real-time data in the meter, press the “FAST∕SLOW” button for 2 seconds, until the “RECORD”

symbol appears on the display. At the same time, the meter will start to record real-time data until its

memory is full. Then the display will show a “FULL” symbol, indicating that the meter cannot continue

saving the data.

02) To Delete the stored data in the Sound Level Meter’s memory, press the “LEVEL ▲” button for 2

seconds until the display shows the “CEL” symbol. Then press the “LEVEL▼” button for 2 seconds, until

the “CEL” symbol flashes. After a few seconds, the display will return to normal, indicating that the

data has been deleted.

Installing operation software in a computer

01) Insert the accessory CD into the CD-ROM driver of a computer.

02) Click “setup.EXE” to install the software onto your hard disk.

03) When the installation has finished, click “MS6701 DIGITAL SOUND LEVELMETER” in the program menu.

04) An operation window will open on your computer.

Linking and communication between the meter and a computer

01) Connect the infrared output socket of the Sound Level Meter with the RS232 interface of your

computer with the included accessory cable.

02) Run “MS6701 DIGITAL SOUND LEVELMETER”, click “START” to receive and display data.

03) By pressing the “RS232” button on the meter for 2 seconds, the real-time sound level data is

transmitted to your computer. The “SENDING” symbol appears on the display. To stop the data

transmission, press the “RS232” button again for 2 seconds.

04) By pressing the “A / C” button for 2 seconds, the data in the memory of the sound meter is

transmitted to your computer. The “SENDING MEMO” symbol will appear on the display. During

transmission the computer shows “Down loading please wait…”. When the transmission is complete,

a dialog box will open. You need to enter a filename, then you can save the data onto your

computer.

05) To open a saved file on the computer, run the software of the sound level meter, click “FILE”. Then

click “OPEN” on the menu. Select and open the corresponding filename in the dialog box.

Set time and date

01) First press the “MAX” button and then turn on the Sound meter. The display will show time(hour,

minute, second) and the second digitals are flashing. Press “LEVEL▲” or “LEVEL▼” to increase or

decrease the time; Press “MAX” to set minute, hour, mouth, year. After the setup has been

completed, turn off the Sound meter.

Calibrating Sound level Meter

01) When the Sound Level Meter is used for a long time, it’s accuracy may reduce. You need to check

and calibrate the sound meter, once a year. Calibration needs a standard sound source, please

Caution

01) Do not use the meter in high temperatures or in wet places.

02) When not using the Sound meter for a long time, please take out the batteries to avoid damaging

the meter.

03) Auto-range (30-130dB) is unfit for measuring instantaneous and high-impact noises.

04) To measure a sound level in a windy environment, please put a windscreen on the microphone to

avoid wind noises.

05) If mark “ ”is shown on the display, it means the voltage is low. You must replace battery, we advise

you to use alkalescent batteries.

Replacing batteries

01) Place 6 x 1,5V AAA alkaline batteries in the battery housing on the back.

02) You can monitor the battery state by looking at the battery icon on the display.

Ordercode: 91004

Digital Sound Level Meter

Maintenance

The operator has to make sure that safety-related and machine-technical installations are to be

inspected by an expert after every year in the course of an acceptance test.

The operator has to make sure that safety-related and machine-technical installations are to be

inspected by a skilled person once a year.

The Sound Level Meter requires almost no maintenance. However, you should keep the unit clean.

Wipe the cover with a damp cloth. Do not immerse in liquid. Wipe display clean with glass cleaner and a

soft cloth. Do not use alcohol or solvents. Make sure that connections are thoroughly dry before

supplying batteries.

If you do not use this device for a long time, please take out the batteries and place it in a dry area.

Safety symbols

Meter is protected by double insulation

Comply with European Union’s 93/68/EEC

Troubleshooting

This troubleshooting guide is meant to help solve simple problems.

If a problem occurs, carry out the steps below in sequence until a solution is found. Once the unit

operates properly, do not carry out the following steps.

If the Sound Level Meter does not operate properly, refer servicing to a technician.

Suspect one potential problem area as: the batteries.

01) Turn the device on. If the device does not start, please check the batteries. To replace the batteries,

see page 8.

02) If all of the above appears to be O.K., start the unit again.

03) If you are unable to determine the cause of the problem, do not open the Sound Level Meter, as this

may damage the unit and the warranty will become void.

04) Return the device to your Showtec dealer.

Ordercode: 91004

Digital Sound Level Meter

Product Specifications

Model:

Digital Sound Level Meter

Frequency:

20 Hz - 8 kHz Hz

Sampling Rate:

2 times/s

Resolution:

0,1dB

Accuracy:

±1.5dB

Response frequency:

31.5Hz — 8kHz

Dynamic range:

50dB

Frequency weighting:

A\C

Time weighting:

FAST 125ms, SLOW 1sec

Microphone:

Electret Condenser microphone

Digital display:

4 digitals, resolution 0.1dB, sampling rate 2 times/s

Analog bar display:

Each analog bar is as 1dB, sampling rate 20 times/s

Measurement ranges:

30—80dB, 40—90dB, 50—100dB, 60—110dB, 70—120dB, 80—130dB.

Total of 6 ranges

Auto-range:

Micro-computer can choose the best measurement ranges

Over range indicator:

UNDER(less than range) and OVER (over range )

AC signal output:

0.707 Vrms at FS (Auto-range mode isn’t included) Output

impedance approx. 600Ω

DC signal output:

10mV/dB Output impedance approx. 100Ω

Digital display:

4 digitals, resolution 0.1dB

Analog bar display:

Each analog bar is as 1dB

Sampling rate:

20 times/

Power supply:

6x LR03 AM4 1.5V SIZE AAA alkaline cells

Power life:

About > 35hrs (alkaline cells) Continuous operation

AC adapter:

Voltage 9vDC

Voltage ripple <100mVpp

Supply Current >100mADC

Socket pin Ground

Casing positive

External Diameter 3.5mm

Operating temperature:

0 ~ +40℃

Operating humidity:

10 ~ 80%RH

Storage temperature:

-10 ~ +60℃

Storage humidity:

10 to 70%RH

Dimensions:

245 x 80 x 35 mm (LxWxH)

Weight:

Approx.350g(including batteries)

Max. ambient temperature t

40°C

Max. housing temperature t

80°C

Ordercode: 91004

Digital Sound Level Meter

Dimensions

Design and product specifications are subject to change without prior notice.

Website: www.Showtec.info

Email: [email protected]

Ordercode: 91004

Digital Sound Level Meter

Notes

Ordercode: 91004

Digital Sound Level Meter

Ordercode: 91004

Digital Sound Level Meter

DAP Audio 91004 User manual

Brand: DAP Audio

Model: 91004

Type: User manual

This manual is also suitable for

Digital Sound Level Meter V1

Some of the key features of the DAP Audio 91004 include:

Auto/manual ranging for optimal accuracy across a wide measurement range
Fast/slow response time weighting for capturing both transient and steady-state sound levels

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DAP Audio 91004 User manual

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DAP Audio 91004 User manual

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