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   HT4000 

 

 

 

 

EN - 2

1. SAFETY PRECAUTIONS AND PROCEDURES 

This apparatus conforms to EMC standards relating to electronic measuring instruments. 
For your own safety and that of the apparatus, you must follow the procedures described 
in this instruction manual and carefully read all the notes preceded by the symbol 

 
Strictly keep to the following instructions before and during measurements: 

  Do not effect measurements in environments with explosive gas, fuels or dust 

  Do not submit the measuring probe to excessive mechanical stress 

 

Do not touch the probe inner fan to avoid damaging it  

  Do not effect any measurement in case of unusual conditions of the instrument such as 

deformation, breakage, leakage of substances, absence of display reading etc. 

 
The following symbols are used on the instrument and in this manual: 
 

 

Caution: refer to the instructions reported on this manual; improper use may 
damage the apparatus or its components. 

 

1.1. PRELIMINARY 

  Use the meter only as specified in this manual; otherwise, the protection provided by 

the meter may be impaired. 

  Only the accessories supplied with the instrument guarantee compliance with the 

safety standards. They must be in good conditions and must be replaced, if necessary, 
with identical models. 

  Do not effect measurements beyond the limits specified in this manual. 

  Check that batteries have been placed correctly. 

 

1.2. DURING 

USE 

Carefully read the following recommendations and instructions: 
 

 

CAUTION 

 

No compliance with the Warnings and/or Instructions may damage the 
apparatus and/or its components or injure the operator. 

 

  Use the meter and the probes only within the ranges specified in this manual and in the 

probes’ ones. 

  Do not perform any measurement on materials under voltage. This could damage the 

instrument. 

  If during a measurement the read value or sign never changes, please verify if the 

HOLD function is active. 

 

1.3. AFTER 

USE 

  When the measurements are completed switch OFF the instrument. 

  Remove batteries when the apparatus remains unused for long periods. 

Содержание 4000

Страница 1: ... Copyright HT ITALIA 2011 Release EN 1 02 28 12 2011 ENGLISH User manual ...

Страница 2: ...bols as well as Firmware version 6 4 4 Preliminary operations 7 4 4 1 Activation of display backlight 7 4 4 2 Change of measuring unit 7 4 5 Measurement of air speed as well as temperature humidity 8 4 6 Measurement of air flow 9 4 7 Measurement of atmospheric pressure 9 4 8 Saving of results 10 4 9 Recall of results to display 10 4 10 Cancellation of internal memory 10 5 MAINTENANCE 11 5 1 Genera...

Страница 3: ...us or its components 1 1 PRELIMINARY Use the meter only as specified in this manual otherwise the protection provided by the meter may be impaired Only the accessories supplied with the instrument guarantee compliance with the safety standards They must be in good conditions and must be replaced if necessary with identical models Do not effect measurements beyond the limits specified in this manua...

Страница 4: ...ure that the instrument reaches you in perfect conditions However it s advisable to make a rapid check in order to detect eventual damages which may have occurred in transit Should this be the case enter immediately the usual claims with the carrier Make sure that all the accessories listed in 6 3 are contained in the package In case of discrepancies contact the dealer In case of returning of the ...

Страница 5: ...key 11 Sensor fan 12 Sensor for temperature humidity measurement 13 Probe handle 14 Battery compartment 15 Battery compartment cover 16 External probe input terminal Fig 1 Instrument description 4 2 DISPLAY DESCRIPTION LEGEND 1 Low battery indication 2 Indication of active Auto Power OFF 3 Main display measuring unit 4 Secondary display measuring unit 5 Secondary display 6 Main display 7 Symbols f...

Страница 6: ...M CFM and atmospheric pressure The key is used inside the programming as well see 4 6 Æ Press and hold the key to disable the function Auto power OFF The symbol disappears The function is automatically activated at every restart The key is not active when programming the instrument selecting measuring unit and recalling data to display 4 3 4 MAX MIN key By pushing MAX MIN key the parameter s maxim...

Страница 7: ...ts to activate disable the automatic shutdown of display backlight see 4 4 1 4 3 7 SET key The key SET has a dual function Æ Just press to activate or deactivate display backlight SET Æ Press and hold to enter the set up area for volumetric flow measurement Backlight and memory cancellation 4 3 8 Check of displayed symbols as well as Firmware version When the instrument is off press and hold the k...

Страница 8: ...ion and quit the mode 4 4 2 Change of measuring unit The instrument permits to change the measuring unit on both main display and secondary display when measuring press the arrow keys S or T to go from one display to the other Act as follows 1 Press and hold the key UNIT The measuring unit flashes on main display 2 Press again and hold the key UNIT The measuring unit flashes on secondary display 3...

Страница 9: ...ng the key 3 Set the desired measuring unit relative to measurement of air speed and air temperature humidity see 4 4 2 4 Place the external probe parallel to air flow in the direction indicated by the arrow on its top see Fig 3 5 The value of air speed is indicated on main display 6 The value of air temperature humidity measured by the sensor of the external probe see Fig 1 part 12 is shown on se...

Страница 10: ...2 0 096m2 or 16 15ft2 1 03ft2 8 Press the key UNIT to confirm the area value 9 Select the measuring unit CMM or CFM on secondary display see 4 4 2 10 Place the external probe parallel to air flow in the direction indicated by the arrow on its top see Fig 3 11 The value of air speed is shown on the instrument s main display 12 The value of air flow is shown on the instrument s secondary display 13 ...

Страница 11: ...old the key HOLD RECALL 2 The instrument displays the messages Recall Memory and the result value along with the memory location on secondary display 3 Press the arrow keys S or T to increase or decrease the number of memory location 4 Press and hold the key HOLD RECALL to quit the mode 4 10 CANCELLATION OF INTERNAL MEMORY 1 Press and hold the key SET to enter the setting mode 2 Use the arrow keys...

Страница 12: ...ttery CAUTION Only expert and trained technicians must perform this operation Remove all the probes from the devices under test before replacing the battery 1 Switch OFF the instrument 2 Remove the temperature probe 3 Remove the battery cover 4 Carefully remove the battery from the battery fastener 5 Set the new battery into battery fastener and return it to the battery case 6 Replace the battery ...

Страница 13: ...1 2 rdg 40 Beaufort 1 10 Airflow measurement with external probe Meas units Range Resolution Accuracy CMM 0 9999 1 CFM Air humidity measurement with internal sensor Meas units Range Resolution Accuracy RH 20 80 0 1 3 5 RH 20 80 5 RH Air temperature measurement with internal sensor Meas units Range Resolution Accuracy C 20 60 0 1 1 C F 4 140 1 8 F Atmospheric pressure measurement with internal sens...

Страница 14: ... Battery life about 100 hours Auto power off after 15 minutes of idleness Display Main display 4 LCD decimal point and backlight Secondary display 6 LCD decimal point and backlight Memory max 99 locations 6 2 ENVIRONMENTAL CONDITIONS 6 2 1 Climatic conditions Reference temperature 23 C 5 C 73 F 41 F Operating temperature 5 C 40 C 41 F 104 F Operating humidity 80 RH Storage temperature 10 C 50 C 14...

Страница 15: ...due to improper packaging Faults due to servicing carried out by a person not approved by the company Faults due to modifications made without explicit authorization of our technical department Faults due to adaptation to a particular application not provided for by the definition of the equipment or by the instruction manual The contents of this manual cannot be reproduced in any form without our...

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