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   HTA105 

 

 

 

 

EN - 3

2. GENERAL DESCRIPTION 

The instrument has the following features: 
 

  Measurement of air speed through hot-wire sensor 

  Measurement of volumetric flow rate of air in m

3

/min (CMM) and ft

3

/min (CFM) 

  Measurement of air temperature in °C/°F with internal sensor 

  Measurement of relative humidity %RH with internal sensor 

  Measurement of Maximum and Minimum value 

  Calculation of average over time and by spots 

 Data 

HOLD 

 Display 

backlight 

  Auto Power OFF 

 
Each of these functions can be selected by means of the corresponding key. The selected 
quantity appears on the display with the indication of the measuring unit and of the 
enabled functions. Function keys are also available; for their use, please refer to § 4.3. 
 

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 generally checking the instrument in order to detect possible 
damage suffered during transport. In case anomalies are found, immediately contact the 
forwarding agent. 
 
We also recommend checking that the packaging contains all components indicated in § 
7.3. In case of discrepancy, please contact the Dealer. 
 
In case the instrument should be returned, please follow the instructions given in § 8. 
 

3.2.  INSTRUMENT POWER SUPPLY 

The instrument is supplied with 1x9V alkaline battery type NEDA 1604 IEC 6F22, included 
in the package. When battery is nearly flat, symbol 

” 

appears on the display. Replace 

the battery by following the instructions given in § 6.2. 
 

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 condition (see § 
7.2.1). 

Содержание HTA105

Страница 1: ...Copyright HT ITALIA 2018 Version EN 1 00 19 03 2018 ENGLISH User manual...

Страница 2: ...4 3 8 Key MAXMIN 5 4 3 9 Key MEAN 5 4 4 Instrument settings 6 5 OPERATING INSTRUCTIONS 8 5 1 Measurement of air speed and temperature 8 5 2 Measuring volumetric flow rate and air humidity 9 5 3 Calcu...

Страница 3: ...ng observe the instructions given in this manual improper use could damage the instrument or its components 1 1 PRELIMINARY INSTRUCTIONS We recommend following the normal safety rules devised to prote...

Страница 4: ...ked 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 generally checking the instrument i...

Страница 5: ...CRIPTION OF THE DISPLAY CAPTION 1 Speed measurement icon 2 Active Settings 3 Active Data HOLD 4 Indication of minutes seconds 5 Indication of active Auto Power OFF 6 Low battery symbol 7 Main display...

Страница 6: ...allows selecting the measuring unit of air temperature shown on the secondary display between the options C Celsius and F Fahrenheit selecting the measuring unit of air volumetric flow rate between t...

Страница 7: ...n the display 4 Press keys UNIT or UNIT to select the desired measuring unit among the options in2 m2 or ft2 5 Press key ENT to confirm The screen in Fig 4 left side is shown on the display Fig 4 Sett...

Страница 8: ...PA mbar not measured by the instrument is displayed Fig 6 Setting of atmospheric pressure value CAUTION The atmospheric pressure value is important for the necessary compensation in order to obtain ac...

Страница 9: ...y UNIT to set the measuring unit of air speed see 4 3 5 and key UNIT to set the measuring unit of air temperature see 4 3 6 on the secondary display after press key FLOW TEMP 4 Let the protection slid...

Страница 10: ...shown on the display 6 Press key UNIT to select measuring unit CMM or CFM on the secondary display see 4 3 6 7 Let the protection slide see Fig 1 part 15 until the sensors are covered and check that...

Страница 11: ...to be carried out with the same procedure as for air speed 5 Press key MEAN Symbols and Mean are shown in the bottom part of the display while the number of the measuring spots are show on the main d...

Страница 12: ...as for air speed 5 Press and hold 2s key MEAN Symbols Mean and and air speed are shown respectively in the bottom part of the display and on the secondary display while symbols 0000 and mm ss timer ex...

Страница 13: ...ation make sure you have removed the probe from the input terminal When symbol is shown on the display air speed indication is flashing and in these conditions the measured value does not comply with...

Страница 14: ...122 0 F 0 1 F 1 8 F Measurement of air relative humidity Range Resolution Accuracy 0 RH 100 RH 0 1 RH 5 RH 7 1 1 General characteristics Mechanical characteristics Size L x W x H 190 x 65 x 45mm 7 x 3...

Страница 15: ...e humidity 80 RH Storage temperature 10 C 60 C 14 F 140 F Storage humidity 80 RH Max operating altitude 2000m 6562ft This instrument complies with European Directive EMC 2014 30 EU This instrument sat...

Страница 16: ...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 manufa...

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