TROTEC SL400 Sound Level Measuring Device Instruction Manual

OPERATING MANUAL
DIGITAL SOUND LEVEL METER

SL400

Symbols

Warning of electrical voltage
This symbol indicates dangers to the life and health of persons due to electrical voltage.
Warning
This signal word indicates a hazard with an average risk level that, if not avoided, can result in serious injury or death.
Caution
This signal word indicates a hazard with a low-risk level which, if not avoided, can result in minor or moderate injury.
Note
This signal word indicates important information (e.g. material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the operating manual must be observed.

Safety

Read this manual carefully before starting or using the device. Always store the manual in the immediate vicinity of the device or its site of use.
Warning
Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury. Save all warnings and instructions for future reference.

• Do not use the device in potentially explosive rooms or areas and do not install it there.

• Do not use the device in an aggressive atmosphere.

• Do not immerse the device in water. Do not allow liquids to penetrate into the device.

• The device may only be used in dry surroundings and must not be used in the rain or at a relative humidity exceeding the operating conditions.

• Protect the device from permanent direct sunlight.

• Do not expose the device to strong vibrations.

• Do not remove any safety signs, stickers or labels from the device. Keep all safety signs, stickers, and labels in legible condition.

• Do not open the device.

• Never charge batteries that cannot be recharged.

• Different types of batteries and new and used batteries must not be used together.

• Insert the batteries into the battery compartment according to the correct polarity.

• Remove discharged batteries from the device. Batteries contain materials hazardous to the environment. Dispose of the batteries according to national regulations.

• Remove the batteries from the device if you will not be using the device for a longer period of time.

• Never short-circuit the supply terminal in the battery compartment!

• Do not swallow batteries! If a battery is swallowed, it can
  cause severe internal burns within 2 hours! These burns
  can lead to death!

• If you think batteries might have been swallowed or otherwise entered the body, seek medical attention immediately!

• Keep new and used batteries and an open battery compartment away from children.

• Only use the device, if sufficient safety precautions were taken at the surveyed location (e.g. when performing measurements along public roads, on building sites, etc.).
  Otherwise do not use the device.

• Observe the storage and operating conditions (see Technical data).

• Do not expose the device to directly squirting water.

• Check accessories and connection parts for possible damage prior to every use of the device. Do not use any defective devices or device parts.

Intended use
Only use the device for sound level measurements within the measuring range specified in the technical data.
To use the device for its intended use, only use accessories and spare parts which have been approved by Trotec.
Foreseeable misuse
Do not use the device in potentially explosive atmospheres, for measurements in liquids or at live parts.
Any unauthorized changes, modifications or alterations to the device are forbidden.

Personnel qualifications
People who use this device must:

• have read and understood the operating manual, especially the Safety chapter.

Personal protective equipment
Wear hearing protection
Wear hearing protection when handling the device.

Residual risks
Warning of electrical voltage
There is a risk of a short circuit due to liquids penetrating the housing!
Do not immerse the device and the accessories in water. Make sure that no water or other liquids can enter the housing.
Warning of electrical voltage
Work on the electrical components must only be carried out by an authorized specialist company!
Warning
Risk of hearing damage!
Ensure sufficient ear protection when there are sources of loud sound. There is a danger of hearing damage.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may use it as a dangerous toy.
Warning
The device is not a toy and does not belong in the hands of children.
Warning
Dangers can occur at the device when it is used by untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Caution
Keep a sufficient distance from heat sources.
Note
To prevent damage to the device, do not expose it to extreme temperatures, extreme humidity or moisture.
Note
Do not use abrasive cleaners or solvents to clean the device.

Information about the device

Device description
The digital sound level meter was specifically designed to perform noise measurements and quality inspections in various areas and different locations. The measurements can be carried out e.g. at your workplace, at the office, in factories, schools, at home or on busy roads. This permits the introduction of preventative measures and helps to guard against noise-induced diseases.

• The device meets the requirements of the standard for digital sound level meters DIN EN 61672-1.
• display of maximum and minimum values
• indication when exceeding the measuring range
• indication when falling below the measuring range
• dBA and dBC display
• measuring range selection
• data transfer to PC software via USB

Device depiction

Control panel

Display

Connections

• e.g. to connect a frequency analyser or recorder

Technical data

100 dB, 30 dB to 130 dB
Display response time| 500 ms
Power supply| 9 V battery 006P or NEDA 1604 or IEC 6F22
Alarm function| OVER: Fallen below measuring range UNDER: Fallen below measuring range
Time weighting| FAST: 125 ms SLOW: 1 s
Microphone| 1/2-inch electret condenser microphone
Operating conditions| 0 °C to 40 °C with 10 % to 90 % RH
Storage conditions| -10 °C to +60 °C with 10 % to 75 % RH
Weight| 305 g
Dimensions (length x width x height)| 255 x 63 x 45 mm
Automatic switch-off| Switch-off after approx. 15 min of non-use

Scope of delivery

• 1 x Digital sound level meter
• 1 x Windshield for the microphone
• 1 x Mini tripod
• 1 x CD with software
• 1 x USB cable
• 1 x Transport case
• 1 x Mini screwdriver
• 1 x 9 V battery
• 1 x Power adapter
• 1 x Quick guide

Transport and storage

Note
If you store or transport the device improperly, the device may be damaged.
Note the information regarding the transport and storage of the device.

Transport
For transporting the device, use the transport case included in the scope of delivery in order to protect the device from external influences.

Storage
When the device is not being used, observe the following storage conditions:

• dry and protected from frost and heat
• protected from dust and direct sunlight
• For storing the device, use the transport case included in the scope of delivery in order to protect the device from external influences.
• the storage temperature complies with the values specified in the Technical data
• Remove the battery from the device.

Operation

Inserting the battery
Insert the supplied battery before first use.
Note
Make sure that the surface of the device is dry and that the device is switched off.

1. Open the battery compartment at the rear of the device by loosening the screw at the cover.
2. Use the battery clip to connect the 9 V battery with the correct polarity.
3. Place the battery with the battery clip into the battery compartment.
4. Reattach the cover to the battery compartment.
5. Retighten the screw at the battery compartment.

Switching the device and performing measurements
Info
Please note that moving from a cold area to a warm area can lead to condensation forming on the device’s circuit board. This physical and unavoidable effect can falsify the measurement. In this case, the display shows either no measured values or they are incorrect. Wait a few minutes until the device has become adjusted to the changed conditions before carrying out a measurement.

Info
Please note that the measurement of a sound source always has to be carried out directly. There must be no objects or persons located in between the microphone and the sound source unless their influence on the sound intensity is to be measured on purpose as well.

1. Press the Power button (4) for approx. 2 s.
   ⇒ The display (6) is switched on and the device is ready for operation.
   ⇒ The current measured value is displayed in the measurement value display (23).

2. Point the device at the sound source to be measured.
   ⇒ Wait for a moment to achieve a stable measured value.

Setting the measuring range
The device has different measuring ranges which can be selected as needed or according to the expected sound level. If the expected sound level range is a known factor, one should always select the corresponding measuring range whenever possible, since this permits an optimum resolution of the scale (21) at all times.

• Lower measuring range: 30 to 80 dB
• Medium measuring range: 50 to 100 dB
• Upper measuring range: 80 to 130 dB
• Auto: 30 to 130 dB

Please proceed as follows to set the measuring range:

1. Repeatedly press the LEVEL button (10) until the desired measuring range is displayed on both ends of the scale (20 and 33)
   ⇒ The scale will be adjusted automatically.
   ⇒ The UNDER (15) or OVER (18) indication will be displayed, if applicable. If so, you should adjust the measuring range further.

Measured curve setting (dBA / dBC)
You can choose whether your measured values are to be displayed according to dB(A) or dB(C).
Please proceed as follows to set the measured curve:

1. Repeatedly press the A/C button (8) until either dB(A) or dB(C) is displayed in pos. 26.
   ⇒ The measured value will be adjusted automatically.

Setting the MIN / MAX function
By use of the MAX/MIN function, you can retain either the highest or the lowest value of the current measurement. Please proceed as follows to set the MAX/MIN function:

1. Press the MAX / MIN button (7).
   ⇒ The MAX indication (34) appears on the display.
   ⇒ The measured value display (23) will be frozen and changes only if a new higher value is measured.

2. Press the MAX / MIN button (7) again.
   ⇒ The MIN indication (16) appears on the display.
   ⇒ The measured value display (23) will be frozen and changes only if a new lower value is measured.

3. Press the MAX/MIN button (7) again to quit using the MAX/MIN function.

Setting the HOLD function
By use of the HOLD function, you can retain the currently measured value.
Please proceed as follows to set the HOLD function:

1. Press the HOLD button (13).
   ⇒ The HOLD indication (25) appears on the display.
   ⇒ The measured value display (23) will be frozen.

2. Press the HOLD button (13) again.
   ⇒ The currently measured value is indicated.
   ⇒ The HOLD indication (25) disappears.

Setting the time weighting
You can choose between a (FAST) and (SLOW) time weighting.

• FAST: 125 ms (real-time signal evaluation)
• SLOW: 1 s (average signal evaluation)

Please proceed as follows to set the time weighting:

1. Press the F/S button (9) until the desired type of time weighting (FAST 17 or SLOW 19) is indicated on the display.

Switching the background illumination on or off
The device comes with optionally selectable background illumination.
Please proceed as follows to switch the background illumination on or off:

1. Press the button for background illumination (14) to switch the background illumination on or off.

Setting the automatic switch-off
The device comes equipped with an automatic switch-off function and switches off automatically if no button was pressed for approx. 15 min.
Please proceed as follows to activate or deactivate the automatic switch-off function:

1. Press the SETUP button (11).
   ⇒ The indication for automatic switch-off (30) appears on the display.
   ⇒ The automatic switch-off function is activated.

2. Press the SETUP button (11) again to deactivate the automatic switch-off function.

Setting the time and date
You can adjust the time and date for the device.
You can save the settings at any time and exit the menu by means of the HOLD button (13).
To do so, please proceed as follows:
√ The device is switched off.

1. Press and hold the SETUP button (11).

2. Switch the device on.
   ⇒ The TIME indication (22) briefly appears on the display.

3.  Release the SETUP button (11).
   ⇒ The DATE indication (31) appears on the display. Also indicated is the current date in the year-month format as well as the day in the measured value display.

4. Press the SETUP button (11) again.
   ⇒ The TIME indication (22) and the set minutes are displayed.

5. Press the LEVEL button (10) to adjust the minutes.

6. Press the SETUP button (11) again.
   ⇒ The TIME indication (22) and the set hours are displayed. h-P stands for P.M. and h-A for A.M.

7. Press the LEVEL button (10) to adjust the hours.

8. Press the SETUP button (11) again.
   ⇒ The DATE indication (31) and the set day are displayed.

9. Press the LEVEL button (10) to change the day.

10. Press the SETUP button (11) again.
    ⇒ The DATE indication (31) and the set month are displayed.

11. Press the LEVEL button (10) to change the month.

12. Press the SETUP button (11) again.
    ⇒ The DATE indication (31) and the set year are displayed.

13. Press the LEVEL button (10) to change the year.

14. Press the HOLD button (13) to save the new time and date settings. If you do not want to save the settings made for time and date, press the SETUP button (11) again whilst in the display for setting the year.
    ⇒ The indication rSt appears on the display.

15. To reset the settings for time and date to the factory default, press the HOLD button (13).

16. In order to return to the menu for setting time and date, press the SETUP button (11) when it is displayed.
    ⇒ The next setting corresponds to the menu for adjusting the current date as described in step 3.

Recording measurement series on the device (REC / Logging)

1. Press the REC button (12) to activate the device’s recording function.
   ⇒ The REC indication (28) appears on the display.

2. Press the REC button (12) again to stop recording measured values.
   ⇒ The measurement will be stored on the device memory with time and date.

Adjusting the saving interval of the device
√ The device is switched off.

1. Press and hold the button for background illumination (14).

2. Switch the device on.
   ⇒ 0001 Int appears on the display.

3. Press the LEVEL button (10) to adjust the saving interval between 0001 and 0059 seconds.

4. Press the HOLD button (13) to save the setting.
   ⇒ The new saving interval is saved until the device is switched off.

Deleting data memory
√ The device is switched off.

1. Press and hold the REC button (12).
2. Switch the device on.
   ⇒ The indication CLR appears on the display.
   ⇒ All data records on the device memory will be deleted.

Setting the data transmission via USB
In order to transfer data for further analysis to a PC via USB, please proceed as follows:

1. Install the supplied software on your PC, see chapter Software.

2. Start the software.

3. Connect the device to the PC using the supplied USB cable.

4. Press the SETUP button (11) to activate both the real-time display of the device in the software interface and the data transfer mode.
   ⇒ The automatic switch-off function will be deactivated for the duration of data transmission.

5. For the data transmission from the device to the PC please follow the instructions in the software help file.

6. Press the SETUP button (11) again to terminate the connection between the device and PC.

Assembling the tripod
The device is equipped with a 1/4-inch tripod thread. If required, you can mount the device onto a tripod.
Switching the device off
If the automatic switch-off function is enabled, the device switches off automatically after approx. 15 min without a keystroke.

1. Press the Power button (4) until the device is switched off.
   ⇒ Indicated on the display is a countdown from 3 to 1.

Errors and faults

The device has been checked for proper functioning several times during production. If malfunctions occur nonetheless, check the device according to the following list.
The device does not switch on:

• Check the charging status of the battery. Change the battery, if required.
• Make sure that the battery is properly positioned. Check the polarity is correct.
• Never carry out an electrical check yourself; instead, contact your Trotec customer service.

Software

The supplied free software is designed for useful basic functionalities. Trotec assumes no liability with regard to this free software and also provides no support on that score. Trotec accepts no liability concerning the use of this free software and is under no obligation to make adjustments or to further develop updates or upgrades.

Installation requirements
Ensure that the following minimum requirements for installing the PC software are fulfilled:

• Supported operating systems (32 or 64-bit version):
  – Windows 10
  – Windows 8
  – Windows 7
  – Windows Vista

• Hardware requirements:
  – processor speed: min. 90 MHz
  – 32 MB RAM, minimum
  – 7 MB hard disk space, minimum
  – a minimum screen resolution of 1024 x 768 with a 16-bit color depth

Installing the PC software

1. Place the supplied software CD into the CD-ROM drive.
2. Open the CD-ROM contents in an Explorer window and double-click the setup.exe file.
3. Follow the instructions of the installation wizard.

Starting the PC software

1. Connect the measuring device to your PC via the mini USB cable provided in the scope of delivery.
2. Switch on the measuring device if necessary.
3. Start the software.

Information about using the PC software is provided in the software help file.

Maintenance and repair

Battery change
A battery change is required when the battery status indication (29) flashes or the device can no longer be switched on (see chapter Inserting the battery).
Calibration
The device is already factory-calibrated and optimally adjusted. Recalibration requires special tools. In the case of a recalibration please contact the Trotec service.
Cleaning
Clean the device with a soft, damp, and lint-free cloth. Make sure that no moisture enters the housing. Do not use any sprays, solvents, alcohol-based cleaning agents or abrasive
cleaners, but only clean water to moisten the cloth.
Repair
Do not modify the device or install any spare parts. For repairs or device testing, contact the manufacturer.

Disposal

Always dispose of packing materials in an environmentally friendly manner and in accordance with the applicable local disposal regulations.

The icon with the crossed-out waste bin on waste electrical or electronic equipment stipulates that this equipment must not be disposed of with the household waste at the end of its life. You will find collection points for free return of waste electrical and electronic equipment in your vicinity. The addresses can be obtained from your municipality or local administration. You can also find out about other return options that apply to many EU countries on the website https://hub.trotec.com/?id=45090. Otherwise, please contact an official recycling center for electronic and electrical equipment authorized for your country.
The separate collection of waste electrical and electronic equipment aims to enable the re-use, recycling, and other forms of recovery of waste equipment as well as to prevent negative effects on the environment and human health caused by the disposal of hazardous substances potentially contained in the equipment.
In the European Union, batteries and accumulators must not be treated as domestic waste but must be disposed of professionally in accordance with Directive 2006/66/EC of the European Parliament and of the Council of 6 September 2006 on batteries and accumulators. Please dispose of batteries and accumulators according to the relevant legal requirements.

You can download the current version of the operating manual and the EU declaration of conformity via the following link:

https://hub.trotec.com/?id=43020

Trotec GmbH
Grebbener Str. 7
D-52525 Heinsberg
+49 2452 962-400
+49 2452 962-200
info@trotec.com
www.trotec.com

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