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   HTA105 

 

 

 

 

EN - 6

4.4. INSTRUMENT 

SETTINGS 

The instrument allows programming the following functions: 
 

  Measuring unit of the area of the duct in volumetric flow rate measurements 

  Size of the duct in volumetric flow rate measurements 

  Disabling the Auto Power OFF function 

 
1.  Turning on the instrument by means of key 

ON/OFF

 

2.  Press and hold (>2s) key  /

SET

 to enter the setting mode. The screen with the 

indication of the currently set measuring unit of the area of the duct is shown on the 
display (see Fig. 3) 

 

 

Fig. 3: Setting the measuring unit of the area of the duct 

 
3. Press key 

ENT

. The unit flashes on the display 

4. Press keys 

UNIT

 or 

UNIT

 to select the desired measuring unit among the options: 

in

2

,

 m

2

 

or

 ft

2

 

5. Press key 

ENT

 to confirm. The screen in Fig. 4 

– 

left side is shown on the display 

 

 

 

Fig. 4: Setting of the value of duct area 

 
6. Press key 

ENT

. The value of area flashes on the display. Press keys 

UNIT

 or 

UNIT

 to move the decimal point to the desired position and confirm with 

ENT

. The 

value of the last digit set flashes on the display 

7. Press keys 

UNIT

 or 

UNIT

 to set the value of duct area in the range: 

0.001 ÷ 9999 

by proceeding from right to left and pressing key 

ENT

 to confirm each digit (see Fig. 4 

– 

right side) relevant, for example, to a square duct with a side of 1.5m x1.5m) 

8. Press key 

ENT

 at the end, to confirm the value of duct area. The following screen (see 

Fig. 5) is displayed. 

 

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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