HT Italia HTA102 User manual

Copyright HT ITALIA 2018 Version EN 1.00 - 17/04/2018
ENGLISH
User manual

HTA102
EN - 1
Table of contents
1.PRECAUTIONS AND SAFETY MEASURES..................................................................2
1.1.Preliminary instructions......................................................................................................... 2
1.2.During use............................................................................................................................. 2
1.3.After use................................................................................................................................ 2
2.GENERAL DESCRIPTION..............................................................................................3
3.PREPARATION FOR USE..............................................................................................4
3.1.Initial checks.......................................................................................................................... 4
3.2.Instrument power supply....................................................................................................... 4
3.3.Storage.................................................................................................................................. 4
4.NOMENCLATURE ..........................................................................................................5
4.1.Description of the instrument ................................................................................................5
4.2.Description of the display...................................................................................................... 5
4.3.Description of function keys..................................................................................................6
4.3.1.Key ON/OFF ................................................................................................................................ 6
4.3.2.Key HLD....................................................................................................................................... 6
4.3.3.Key .......................................................................................................................................... 6
4.3.4.Key A/C........................................................................................................................................ 6
4.3.5.Key LEV....................................................................................................................................... 6
4.3.6.Key F/S ........................................................................................................................................ 6
4.3.7.Key MAX MIN .............................................................................................................................. 6
4.3.8.Key REC ...................................................................................................................................... 6
4.3.9.Key SET....................................................................................................................................... 7
5.OPERATING INSTRUCTIONS........................................................................................9
5.1.Real-time measurement of sound pressure level.................................................................. 9
5.2.Recording of sound pressure level........................................................................................ 9
5.3.Connection to analogue AC/DC output............................................................................... 11
5.4.Calibration of the instrument............................................................................................... 12
6.USING SOFTWARE SOUNDLINK................................................................................13
6.1.Minimum system requirements ........................................................................................... 13
6.2.Installation of software SoundLink and of USB driver......................................................... 13
6.3.Main characteristics of software SoundLink........................................................................ 13
7.MAINTENANCE ............................................................................................................14
7.1.General information............................................................................................................. 14
7.2.Replacing the battery.......................................................................................................... 14
7.3.Cleaning the instrument......................................................................................................14
7.4.End of life............................................................................................................................ 14
8.TECHNICAL SPECIFICATIONS ...................................................................................15
8.1.Technical characteristics..................................................................................................... 15
8.2.General characteristics ....................................................................................................... 15
8.3.Environmental conditions for use........................................................................................ 16
8.4.Accessories......................................................................................................................... 16
8.4.1.Accessories provided................................................................................................................. 16
9.ASSISTANCE................................................................................................................17
9.1.Warranty conditions ............................................................................................................ 17
9.2.Assistance........................................................................................................................... 17

HTA102
EN - 2
1. PRECAUTIONS AND SAFETY MEASURES
The instrument has been designed in compliance with the safety directives relevant to
electronic measuring instruments. For your safety and in order to prevent damaging the
instrument, please carefully follow the procedures described in this manual and read all
notes preceded by symbol with the utmost attention. Before and after carrying out
measurements, carefully observe the following instructions:
Do not carry out any measurement in humid environments.
Do not carry out any measurements in case gas, explosive materials or flammables are
present, or in dusty environments.
Do not carry out any measurement in case you find anomalies in the instrument such
as deformation, substance leaks, absence of display on the screen, etc.
The following symbols are used in this manual:
Caution: observe the instructions given in this manual. Improper use may
damage the instrument or its components.
This instrument belongs to Class 2 (double insulation).
This instrument complies with the standards relevant to CE marking.
1.1. PRELIMINARY INSTRUCTIONS
We recommend following the normal safety rules devised to protect the instrument
against incorrect use.
In case the instrument has not been used for a long time, or has been used in critical
conditions, we recommend performing a new calibration before use (see § 5.4).
Check that the battery is correctly inserted.
1.2. DURING USE
Please carefully read the following recommendations and instructions:
CAUTION
Failure to comply with the caution notes and/or instructions may damage
the instrument and/or its components or be a source of danger for the
operator.
Do not perform any test under environmental conditions exceeding the limits indicated
in § 8.3
Always use the wind protection in case measurements are performed in windy
environments.
Avoid mechanical shocks and keep the microphone dry.
While measuring, if the value of the quantity being measured remains unchanged,
check if the HOLD function is enabled.
1.3. AFTER USE
At the end of measurements, switch off the instrument.
If the instrument is not to be used for a long time, remove the battery.

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2. GENERAL DESCRIPTION
The instrument has the following functions:
Measurement of Sound Pressure Level (SPL).
Weighted frequency measurements through A or C curve.
Measurement carried out with FAST or SLOW integration.
Measurement of maximum and minimum values of SPL.
Analogue AC/DC output which can be used with external multimeters and/or
dataloggers.
Automatic range selection.
PC connection through software SoundLink for recording operations
On the instrument’s front panel there are function keys to select the above-mentioned
functions (see § 4.3). The measured value appears on the wide LCD display with the
indication of the measuring unit and of the enabled functions.
On the side of the instrument there are: the analogue AC/DC output, the terminal for the
connection of the external power supply with no use of the battery, the mini USB port for
PC connection and the adjustment trimmer.
On the back side of the instrument there is a hole to rest it onto a possible tripod while
carrying out measurements.

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3. PREPARATION FOR USE
3.1. INITIAL CHECKS
Before shipping, the instrument has been checked from an electric as well as mechanical
point of view. All possible precautions have been taken so that the instrument is delivered
undamaged. However, we recommend checking the instrument in order to detect possible
damage suffered during transport. In case anomalies are found, immediately contact the
Dealer or HT’s After-sales Service.
We also recommend checking that the packaging contains all components indicated in §
8.4.1. In case of discrepancy, please contact the Dealer.
In case the instrument should be returned, please follow the instructions given in § 9.
3.2. INSTRUMENT POWER SUPPLY
The instrument is supplied through 1x9V alkaline battery type IEC 6F22, included in the
package. The “” symbol appears when the battery is flat. Replace the battery by
following the instructions given in § 7.2. The instrument may be supplied also through an
external DC 9V supply (see electrical specifications in § 8.2), also included in the package.
3.3. STORAGE
In order to guarantee precise measurement, after a long storage time under extreme
environmental conditions, wait for the instrument to come back to normal operating
conditions (see § 8.3).

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4. NOMENCLATURE
4.1. DESCRIPTION OF THE INSTRUMENT
CAPTION:
1. Wind protection
screen
2. LCD display
3. Key
4. Key MAX/MIN
5. Key REC
6. Key HLD
7. Key A/C
8. Key SET
9. Key F/S
10.Key LEV
11.Key ON/OFF
12.Microphone
13.Input for external
power supply
14.Mini USB port
15.Analogue AC/CD
output
16.Adjustment trimmer
17.Hole for tripod
insertion
18.Battery compartment
Fig. 1: Description of the instrument
4.2. DESCRIPTION OF THE DISPLAY
CAPTION:
1. Low value indication
2. Active MIN function
3. Active FAST function
4. Full scale indication
5. Active SLOW function
6. Measuring range
indication
7. Active autorange
8. Active HOLD function
9. Weighting unit A
10.Weighting unit C
11.Active recording
12.Memory full
13.Low battery
indication
14.Active Auto Power
OFF function
15.LCD display
16.System time
17.Analogue bargraph
18.Active MAX function
Fig. 2: Display description

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4.3. DESCRIPTION OF FUNCTION KEYS
4.3.1. Key ON/OFF
Pressing key ON/OFF allows turning on the instrument. Press and hold key ON/OFF until
the countdown “3”, “2” “1” is over and with indication “P-OFF” shown on the display to turn
off the instrument.
4.3.2. Key HLD
Pressing key HLD activates/deactivates function HOLD, i.e. the value of the quantity
measured is frozen on the main display. Symbol "HOLD" appears at the bottom of the
display. Key HLD is also used to confirm parameters when setting the system date/time
(see § 4.3.9) and the sampling interval (see §).
4.3.3. Key
Pressing key allows activating/deactivating the display’s backlight. The same key can be
used to define the sampling interval during a recording carried out by the instrument (see §
5.2).
4.3.4. Key A/C
Press key A/C to select weighting curves A or C. Curve “A” is used for generic
measurements of sound pressure level (SPL), while curve “C” is used for SPL
measurements with low-frequency components. In case weighting C gives much higher
results than weighting A, many low-frequency noise components are present. Indications
“dBA” (weighting A) or “dBC” (weighting C) are shown on the display.
4.3.5. Key LEV
Press key LEV to select measuring range (see Fig. 2 – part 6). The following ranges are
available: 30 80dB (low), 50 100dB (medium), 80 130dB (high), 30 130dB
(Autorange). Message “AUTO” (see Fig. 2 – part 7) appears when “Autorange” is selected.
Message “UNDER” (see Fig. 2 – part 1) appears when the measured value is lower than
the minimum value of the selected range. Message “OVER” (see Fig. 2 – part 4) appears
when the measured value is higher than the maximum value of the selected range. Key
LEV is used also when setting system date/time (see § 4.3.9).
4.3.6. Key F/S
Press key F/S to select integrations: “FAST” used for measuring short SPL (once every
125ms) or “SLOW” used to evaluate the average value of SPL changing over time
(once every second).
4.3.7. Key MAX MIN
Press key MAX MIN to activate/deactivate measurement of Maximum and Minimum
values of sound pressure level (SPL). Before using this function, select the most
appropriate range (see § 4.3.5). Symbols “MAX” or “MIN” appear on the top of the display
and the Maximum or Mini mum values are shown on the display. These values are
automatically updated, as soon as the instrument measures a higher (MAX) or lower (MIN)
value. Press and hold key MAX MIN (>2s) to quit and go back to measuring mode.
4.3.8. Key REC
Press key REC to activate/deactivate recording of sound pressure level (SPL) on the
instrument (see § 5.2).

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4.3.9. Key SET
Key SET allows for the following operations:
Activation/deactivation of the instrument’s auto power OFF (APO) function. Symbol “”
appears and disappears n/from the display (operation not possible with active HOLD
function).
Setting of system date/time, following this procedure:
1. Switch off the instrument by pressing the ON/OFF key.
2. Press and hold key SET and switch on the instrument using key ON/OFF. Release key
SET with message “TIME” shown on the display. The following screen (see Fig. 3 – left
side) indicating the current date (e.g.: 26/03/18) is shown on the display.
Fig. 3: System time setting
3. Press key SET to enter the programming section of “Minutes”. The screen in Fig. 3 –
Middle appears on the display.
4. Press key LEV to set the Minutes and key SET to proceed and set the Hour (see Fig. 3
– right side).
5. Press key LEV to set the Hour, considering specification “h – P” = PM or “h – A” = AM
6. Press key SET to proceed and set the Date. The screen in Fig. 4 – left side appears on
the display.
Fig. 4: System date setting
7. Press key LEV to set the Day and key SET to proceed (see Fig. 4 – middle).
8. Press key LEV to set the Month and key SET to proceed (see Fig. 4 – right side).
9. Press key LEV to set the Year and key HLD to confirm date/time and quit the
programming section.
10.Once the Year is set, by pressing key SET again, the following screen is shown on the
display.

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Fig. 5: Activating the instrument’s reset
11.Press key SET to save date/time and exit the programming section.
OR
12.Press key HLD to reset. In this case, system date/time is automatically set back to
default configuration by the instrument. This condition must be used in case it is not
possible to set the date/time because of low battery or when battery is replaced.

HTA102
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5. OPERATING INSTRUCTIONS
5.1. REAL-TIME MEASUREMENT OF SOUND PRESSURE LEVEL
CAUTION
Always use the wind protection screen in case measurements are performed
in windy environments, and anyway in case wind is stronger than 10m/s.
Avoid mechanical shocks and keep the microphone dry.
1. Switch on the instrument using key ON/OFF.
2. Check system date/time and, if necessary, reset it (see § 4.3.9).
3. Carry out a full calibration in case the instrument has not been used for a long time, by
using the mobile calibrator SC05 supplied (see § 5.4).
4. Press key A/C to select the weighting curve (see § 4.3.4).
5. Press key F/S to select the integration type (see § 4.3.6).
6. Press key LEV to select an appropriate range for the sound pressure level (SPL) to be
measured (see § 4.3.5).
7. Read the indication of measured SPL on the display.
8. For a better comfort, use the provided tripod by inserting it into the relevant threaded
hole on the instrument’s back side (see Fig. 1 – part 17).
9. For functions HOLD and MAX MIN see § 4.3.2 and 4.3.7
5.2. RECORDING OF SOUND PRESSURE LEVEL
The instrument allows recording the sound pressure level (SPL) over time, with
programmable sampling interval. Each recording is saved in the internal memory and can
be downloaded and shown on the PC through the provided software SoundLink.
1. Switch on the instrument using key ON/OFF.
2. Check system date/time and, if necessary, reset it (see § 4.3.9).
3. Switch off the instrument using key ON/OFF.
4. Perform the internal memory’s zeroing by pressing and holding key REC while the
instrument is switched on using key ON/OFF. The following screen appears on the
display for a moment.
Fig. 6: Zeroing of the internal memory
5. Switch off the instrument using key ON/OFF.
6. Set the sampling interval by pressing and holding key while the instrument is
switched on using key ON/OFF. The following screen appears on the display:

HTA102
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Fig. 7: Setting of the sampling interval
7. Press key LEV to set the sampling interval in range 1s ÷ 59s
8. Press key HLD to confirm and go back to measuring screen.
9. Carry out a full calibration in case the instrument has not been used for a long time, by
using the mobile calibrator SC05 supplied (see § 5.4).
10.Press key A/C to select the weighting curve (see § 4.3.4).
11.Press key F/S to select the integration type (see § 4.3.6).
12.Press key LEV to select an appropriate range for the sound pressure level (SPL) to be
measured (see § 4.3.5).
13.Connect the provided external prower supply to the instrument’s input (see Fig. 1 – part
13).
14.Looking at the indicated system time (see Fig. 2 – part 16), press key REC to activate
recording in the desired instant. Message “REC” appears at the bottom of the display
(see Fig. 8).
Fig. 8: Activation of SPL recording
15.Press key REC to end and automatically save recording in the desired instant.
16.Connect the instrument to the PC via the provided USB cable (see Fig. 1 – part 14).
17.Launch software SoundLink.
18.Press key SET, excluding the auto power OFF function (symbol “” not present on the
display), checking for the correct connection between instrument and software (see the
software’s Help on line).
19.Select command DataLogger in software SoundLink. The following screen appears on
the PC.

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Fig. 9: Download and display of recording on software SoundLink
20.Double-click the name of recording. The relevant graph is found in the software’s
screen.
For information about the use of software SoundLink, please refer to the Help on
line of the software itself.
21.Switch off the instrument using key ON/OFF.
5.3. CONNECTION TO ANALOGUE AC/DC OUTPUT
The instrument can be connected to external multimeters and/or dataloggers for recording
through the analogue AC/DC output found on the instrument’s side (see Fig. 1 – part 15)
by using a 3.5mm jack, not provided. The characteristics of the analogue output are
indicated in the following Fig. 10
AC output DC output
1Vrms with respect to
selected FS
Output impedance:
100
Output: 10mV/dB
Output impedance: 1k
Fig. 10: Analogue AC/CD output characteristics

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5.4. CALIBRATION OF THE INSTRUMENT
Fig. 11: Connect the mobile calibrator to the instrument
1. Turn on the instrument by means of key ON/OFF
2. Set the following configurations:
Weighting curve: A (dBA)
Integration type: FAST
Measuring range: 50 ÷ 100dB
3. Carefully insert the mobile calibrator SC05 provided into the instrument’s microphone
until a click is heard, as shown in Fig. 11.
4. Switch on the calibrator by selecting level 94dB at sinusoidal frequency 1kHz.
5. Insert the provided screwdriver into the trimmer (see Fig. 1 – part 16) and carry out a
manual adjustment until the result “94.0” is shown on the display.
6. Extract the calibrator from the microphone and switch it off by moving the relevant
selector to the OFF position.

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6. USING SOFTWARE SOUNDLINK
Software “SoundLink” can be used to connect instrument HTA102 to the PC, start real-time
recordings of sound pressure level (SPL) and save data.
6.1. MINIMUM SYSTEM REQUIREMENTS
Hardware: Pentium IV
RAM memory: 32MB
Output interface: USB ports
CD-ROM reader: present
Screen resolution: 800x600 (16 bit)
Operating system: Windows XP o higher
6.2. INSTALLATION OF SOFTWARE SOUNDLINK AND OF USB DRIVER
1. Insert the installation CD-ROM into the reader of the PC.
2. Launch file “SoundLink_setup.exe” found on the CD-ROM and follow the guided
installation procedure.
3. Install USB driver by launching files “CP210XCPInstaller_x86.exe” (32 bit systems) or
“CP210XCPInstaller_x64.exe” (64 bit systems) found on the CD-ROM.
4. Use ports COM3 or COM4 to connect the instrument to the PC.
6.3. MAIN CHARACTERISTICS OF SOFTWARE SOUNDLINK
With launched program, the PC shows the following initial screen:
Fig. 12: Starting screen of software SoundLink
Main characteristics of software SoundLink:
Real-time display of the values shown on the instrument’s display
Setting of sampling interval for recording (DataLogger)
Starting of SPL recording and display of data in numerical/graphic format.
Data saving in TXT test format and exporting to an Excel (XLS) file.
For information about the use of software SoundLink, please refer to the Help on
line of the software itself.

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7. MAINTENANCE
7.1. GENERAL INFORMATION
While using and storing the instrument, carefully observe the recommendations listed in
this manual in order to prevent possible damage or danger during use. Do not use the
instrument in environments with high humidity levels or high temperatures. Do not expose
to direct sunlight. Always switch off the instrument after use. In case the instrument is not
to be used for a long time, remove the battery to avoid liquid leaks that could damage the
instrument's internal circuits.
7.2. REPLACING THE BATTERY
When the LCD display shows symbol “ ”, it is necessary to replace the battery.
CAUTION
Only expert technicians should perform this operation. Before carrying out
this operation, make sure you have removed the probe from the input
terminal.
1. Switch off the instrument
2. Remove the battery compartment cover (see Fig. 1 – part 18).
3. Disconnect the battery from the connector.
4. Connect the new battery to the connector, and pay attention to correct polarity
5. Restore the battery compartment cover to its position.
6. Do not scatter old batteries into the environment. Use the relevant containers for
battery disposal.
7.3. CLEANING THE INSTRUMENT
Use a soft and dry cloth to clean the instrument. Never use wet cloths, solvents, water, etc.
7.4. END OF LIFE
Caution: the symbol on the instrument indicates that the appliance and its
accessories must be collected separately and correctly disposed of.

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8. TECHNICAL SPECIFICATIONS
8.1. TECHNICAL CHARACTERISTICS
Accuracy is referred to a temperature of 23°C±5°C with relative humidity <80%RH.
Measurement of sound pressure level (SPL)
Range[dB] Dynamic range Resolution Accuracy Frequency range
Lo 30 80
50dB 0.1dB
1.4dB 31.5Hz 8kHz
Med 50 100
Hi 80 130
Auto 30 130
Integration Function Integration time
FAST 125ms
SLOW 1s
Analogue output
Type Output voltage Output impedance
AC 1Vrms with respect to selected FS 100
DC 10mV/dB 1k
Microphone
Microphone with ½” Electret condenser
Reference standards
Noise measurements: IEC61672-1 Class 2
EMC: IEC/EN61326-1
8.2. GENERAL CHARACTERISTICS
Mechanical characteristics
Size (L x W x H): 260 x 65 x 50mm (10 x 3 x2in)
Weight (battery included): 280g (10ounces)
Mechanical protection: IP40
Power supply
Battery type: 1x9V alkaline battery type IEC 6F22
Low battery indication: symbol “” ” on the display
Battery duration: approx. 30 hours
External power supply: 100-240VAC, 50/60Hz, 0.3A/ 9VDC, 500mA
Auto Power OFF: after 15 minutes' idling
Display
Characteristics: 4 LCD, Custom, backlit, bargraph
Display update: 2/s
Recordings selectable sampling interval between 1s and 59s
max 32700 recordings can be saved in the internal memory
Output connector mini USB

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8.3. ENVIRONMENTAL CONDITIONS FOR USE
Reference temperature: 23°C ± 5°C (73°F ± 41°F)
Operating temperature: 0°C ÷ 40°C (32°F ± 104°F)
Allowable relative humidity: <90%RH
Storage temperature: -10°C ÷ 60°C (14°F ± 140°F)
Storage humidity: <75%RH
Max operating altitude: 2000m (6562ft)
This instrument complies with Directive EMC 2014/30/EU
This instrument satisfies the requirements of European Directive 2011/65/EU (RoHS)
and 2012/19/EU (WEEE)
8.4. ACCESSORIES
8.4.1. Accessories provided
Portable calibrator SC05
Wind screen protection
Adjustment screwdriver
USB cable
CD-ROM with software SoundLink
Tripod
9V battery, 2 pcs
Power supply + 4 universal plugs
User manual of the instrument
User manual of calibrator
Rigid transport case

HTA102
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9. ASSISTANCE
9.1. WARRANTY CONDITIONS
This instrument is warranted against any material or manufacturing defect, in compliance
with the general sales conditions. During the warranty period, defective parts may be
replaced. However, the manufacturer reserves the right to repair or replace the product.
Should the instrument be returned to the After-sales Service or to a Dealer, transport will
be at the Customer's charge. However, shipment will be agreed in advance. A report will
always be enclosed to a shipment, stating the reasons for the product's return. Only use
original packaging for shipment; any damage due to the use of non-original packaging
material will be charged to the Customer. The manufacturer declines any responsibility for
injury to people or damage to property.
The warranty shall not apply in the following cases:
Repair and/or replacement of accessories and battery (not covered by warranty).
Repairs that may become necessary as a consequence of an incorrect use of the
instrument or due to its use together with non-compatible appliances.
Repairs that may become necessary as a consequence of improper packaging.
Repairs which may become necessary as a consequence of interventions performed
by unauthorized personnel.
Modifications to the instrument performed without the manufacturer's explicit
authorization.
Use not provided for in the instrument's specifications or in the instruction manual.
The content of this manual cannot be reproduced in any form without the manufacturer's
authorization.
Our products are patented and our trademarks are registered. The manufacturer
reserves the right to make changes in the specifications and prices if this is due to
improvements in technology.
9.2. ASSISTANCE
If the instrument does not operate properly, before contacting the After-sales Service,
please check the conditions of battery and cables and replace them, if necessary. Should
the instrument still operate improperly, check that the product is operated according to the
instructions given in this manual. Should the instrument be returned to the After-sales
Service or to a Dealer, transport will be at the Customer's charge. However, shipment will
be agreed in advance. A report will always be enclosed to a shipment, stating the reasons
for the product's return. Only use original packaging for shipment; any damage due to the
use of non-original packaging material will be charged to the Customer.