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HT4000

EN - 4

4. OPERATING INSTRUCTIONS

4.1. INSTRUMENT

DESCRIPTION

LEGEND:
1. External probe

terminal

2. Internal sensor for

atmospheric pressure
measurement

3. LCD display
4.

HOLD/RECALL

key

MAX MIN

key

/ UNIT

key

ESC/REC

key

10.

/ SET

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 for internal

functions

Fig. 2: Display description

Summary of Contents for 4000

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

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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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