SoundTestMaster - Sound level meters Laserliner - Free user manual and instructions

USER MANUAL SoundTestMaster Laserliner

Completely read through the operating instructions, the „Warranty and Additional Information“ booklet as well as the latest information under the internet link at the end of these instructions. Follow the instructions they contain. These documents must be kept in a safe place and passed on together with the product.

The sound level meter is used to measure sound level with the frequency weighting lters based on the standard curves dB A and dB C as well as two time weighting factors (fast/slow). An internal memory stores the data measured during long-term measurements and the internal interface enables real time logging on a PC.

Microphone/Wind guard

Time weighting/ Memory readout

Display lighting/ Real time recording 7 Adjust measuring range

9 V DC power supply connection

Max. measuring range

Record measured values

Current measured value

Min. measuring range Intended use

General safety instructions – The device must only be used in accordance with its intended purpose and within the scope of the specications. – The measuring tools and accessories are not toys. Keep out of reach of children. – Do not expose the device to mechanical stress, extreme temperatures, moisture or signicant vibration. – The structure of the device must not be modied in any way. – The device must no longer be used if one or more of its functions fail or the battery charge is weak. – Please ensure compliance with the safety regulations set out by local and national authorities with regard to the correct and proper use of the device.10

ON / OFF 1 sec Open the battery compartment and insert batteries (6 x type AAA) according to the symbols. Be sure to pay attention to polarity. Insert battery Safety instructions Dealing with electromagnetic radiation – The measuring device complies with electromagnetic compatibility regulations and limits in accordance with the EMC Directive 2014/30/EU which is covered by the Radio Equipment Directive 2014/53/EU. – Local operating restrictions – for example, in hospitals, aircraft, petrol stations or in the vicinity of people with pacemakers – may apply. Electronic devices can potentially cause hazards or interference or be subject to hazards or interference. – The measuring accuracy may be affected when working close to high voltages or high electromagnetic alternating elds. Setting date/time (setup)

The current data and time should be set before using the device for the first time to ensure stored measured values are assigned for subsequent evaluation. Press and hold the "MAX" button while switching on. You can change the value with the "LEVEL" buttons and move to the next value with the "MAX" button. Date format: Year/month/day. Switch off the device to store the setting. Powerful wind noises (> 10m/s) can affect the measured value. In such cases, you should use the wind deector supplied with the product.

After switching on the device, correspondingly switch over the dB A/dB C weighting lter by pressing the "A/C" button. Sound pressure level (dB)

This device registers sound in a similar way to the human ear. The integrated microphone receives the incoming sound waves and converts them into electrical signals. Human hearing involves specic auditory curves. The greater the sound pressure, the louder the sound is perceived to be. The higher the frequency, the higher the pitch of the sound is perceived to be. To ensure that measurements are aurally compensated, this measuring device is tted with lters. The A-weighting (dB A) replicates the frequency response associated with human hearing and is used for the majority of industrial noise and environmental noise measurements. The C-weighting is used in industrial measurements.SoundTest-Master

Sound source Sound pressure level in dB (A) Auditory threshold Quiet residential area30 to 40Low-level conversation, quiet ofce40 to 50Normal conversation50 to 60Heavy road trafc70 to 80Shouting, screaming80 to 85Pneumatic hammer (10 m away)90 to 100Start-up of a jet aircraft (100 m away)120 to 130Pain threshold

Measuring range Select the corresponding measuring range in the device to achieve the required degree of accuracy of measurement results. In addition to the option of selecting the measuring range manually, the device also features an automatic range detection function. You can set the required measuring range by pressing the "LEVEL" buttons. To set the automatic measuring range, press and hold the "LEVEL 5" button until the measuring range 30...130 dB appears in the display. Use the automatic measuring range to gauge the corresponding range. Then switch over to the determined manual measuring range as greater accuracy is achieved in this range. Ideally, the mea- sured value should be in the middle of the dened measuring range.

Measuring range: Manual 30 … 80 dB 60 … 110 dB 40 … 90 dB 70 … 120 dB 50 … 100 dB 80 … 130 dB Measuring range: Automatic 30 … 130 dB The following alert is shown on the display when the measu- red values are outside the preset measuring range: UNDER The measured value is below the measuring range. Correct the measuring range downward. OVER The measured value is above the measuring range. Correct the measuring range upward.12

Time weighting (FAST/SLOW) The device features two different measuring intervals. "FAST" time weighting should be set for signals that change quickly. "SLOW" time weighting should be set for continual signals that change slowly. The "FAST" measuring interval is 125 milliseconds while the "SLOW" measuring interval is 1 second. The time weighting can be changed at any time during the measurement by pressing the "FAST/SLOW" button. Always make sure the time weighting is set correctly to match the signal to be measured. If "SLOW" weighting is used for signals that change fast the measurement result may be falsied as peak levels may not be recorded.

MAX function The MAX function is activated by pressing the "MAX" button. The measured value currently displayed corresponds to the largest measured value. Lower measured values are not displayed. Press the "MAX" button again to deactivate the function.

Record measured values (RECORD) An internal memory makes it possible to record measured data during a measurement session. The stored data can be read out for subsequent evaluation. The memory can hold up to 16,000 measurements. Press the "RECORD" button for 2 seconds to start recording. "RECORD" appears at the bottom of the display. Press the button again for 2 seconds to stop recording. "FULL" is shown on the display as soon as the memory in the device is full. 2 sec

Clear memory Press and hold the "LEVEL 5" button for 3 seconds to completely delete the data in the memory. "CLR" appears on the display. Press and hold the "LEVEL 6" button for 3 seconds to conrm that you wish to delete the data. The "CLR" display then ashes for a short time. The delete operation is concluded as soon as the normal display view appears again. Do not start measurement recording before the device has been securely set up and adjusted. Measurements may be falsied if settings are changed during recording.

The internal storage space is limited to 16000 measuring points; longer measurements can be carried out in real time with the Windows application.

Transfer stored data (SEND MEMORY) The software must be installed on your PC before the data can be read out. To do this, follow the instructions at https://packd.li/ll/stm/ap/wi, start the installation program and follow the installation routine. After successful installation, start the application. Then connect the supplied transfer cable to the PC interface on the device. Connect the other end of the cable to a free port on your PC. Press and hold the "SEND MRMORY" button for 3 seconds to transfer the data. "SENDING MEMO" appears on the display and goes out again as soon as data transfer has been completed. If the whole measurement memory is transferred to the PC, the entire transfer can take a long time. The connection to the PC is made via an optically decoupled interface to prevent interference during real-time transmission, meaning that only moderate data transfer rates can be achieved.

3 sec It is possible to transfer the data to the PC in real time when conducting extensive measurements where there is not sufcient space in the internal memory for the recorded data. Data storage takes place directly at the PC. The measured data can also be displayed and observed directly on the PC monitor.

Real time recording (SEND DATA) Connect the device to the PC as described under Point 10 and start the program. Press and hold the "SEND DATA" button for 3 seconds to start data transfer. "SENDING" appears on the display. All recorded data are now shown in real time on the PC. Press the "SEND DATA" button again for 3 seconds to stop data transfer. 3 sec The device is equipped with analogue signal outputs. The dB A or dB C signal is output via the CD output for connection to a chart recorder for instance. The unltered signal that is recorded directly from the microphone is made available at the AC output for a possible connection to an oscilloscope.

DC/AC output EN14 The calibration can be checked by means of a sound pressure level calibrator in accordance with IEC/EN 60942:2003ff. The calibrator denes a target volume of 94 dB. The device should be checked in the 80...130 dB setting and show 94 dB plus the tolerance range on the display. If the displayed value deviates from the target volume, you can adjust the sound level meter to the required 94 dB by means of the calibration screw.

Calibration and adjustment It is recommended to operate the device with a controlled power pack (9 V, > = 500 mA DC, DC power plug 3.5 x 1.3 mm). High quality control and ltering of the power pack is required in order to rule out possible interference on the measurement signal (ripple <= 100 mV).

Power pack operation For certain measuring tasks it may be of advantage to secure the device on a tripod. To do so, screw the device on to a tripod with a 1/4" connection. Undo the device by turning in anticlockwise direction.

Mounting on tripod Information on maintenance and care Clean all components with a damp cloth and do not use cleaning agents, scouring agents and solvents. Remove the battery(ies) before storing for longer periods. Store the device in a clean and dry place. Calibration The meter needs to be calibrated and tested on a regular basis to ensure it produces accurate measurement results. We recommend carrying out calibration once a year. Contact your distributor or the UMAREX-LASERLINER service department. ENSoundTest-Master

Technical data (Subject to technical modications. 23W23) Manual measuring range 30 dB … 80 dB 40 dB … 90 dB 50 dB … 100 dB 60 dB … 110 dB 70 dB … 120 dB 80 dB … 130 dB Automatic measuring range 30 dB … 130 dB Accuracy ± 1.5 dB (reference condition 94 dB / 1 kHz) Dynamic range 50 dB Test condition 94 dB, 1 kHz sinusoidal signal Frequency range 31.5 Hz ... 8 kHz Measuring interval Fast: 125 ms, Slow: 1 s Resolution of digital display 0.1 dB, Measuring rate: 2 measurements/second Resolution of analogue display 1 dB, Measuring rate: 20 measurements/second Microphone Electret microphone Data memory 16,000 measurements AC voltage output 0.70 Vrms at full deflection, approx. 600 ohm output impedance DC voltage output 10 mV/dB, approx. 100 ohm output impedance Interface Optoinsulated RS 232 System requirements Windows XP / Vista / 7 / 8 / 10 / 11, 32bit / 64bit Power supply 6 x 1.5 V AAA Power pack connection DC 9V ≥ 500 mA (ripple < 100 mV) Operating temperature 0°C … 40°C, max. humidity 80% rH, no condensation, max. working altitude 2000 m above sea level Storage temperature -10°C … 60°C, max. humidity 80% rH Dimensions (W x H x D) 80 x 245 x 35 mm Weight (including batteries) 350 g EU and UK directives and disposal This device complies with all necessary standards for the free movement of goods within the EU and the UK. This product, including accessories and packaging, is an electrical appliance that must be recycled in an environmentally appropriate manner in accordance with European and UK directives on waste electrical and electronic equipment, batteries and packaging, in order to recover valuable raw materials. Further safety and supplementary notices at: https://www.laserliner.com EN16