HT4000
EN - 3
2. GENERAL DESCRIPTION
The HT4000 meter can perform the following measurements:
• Air speed measurement with 30 mm diameter external probe
• Airflow measurement in m
3
/min (CMM) and ft
3
/min (CFM)
• Air temperature measurement in °C/°F with external probe
• Relative humidity measurement %RH with external probe
• Atmospheric pressure measurement with internal sensor
• Maximum, minimum and average (AVG) values
• Data HOLD
• Internal memory with 99 locations for measurement storing
• Back light
• Auto power OFF
Each function could be selected via the relative key. The selected quantity appears on a
high-contrast liquid crystal display with indication of measurement unit and of the active
functions. There are also the function keys, for their use please see § 4.3.
3. PREPARATION FOR USE
3.1. INITIAL
The instrument has been checked from every point of view before shipment. Every care
has been taken to make sure 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 tester, please keep to the instructions given in § 7.
3.2. POWER SUPPLY
The instrument is battery supplied by 1 battery 9V type 9V NEDA 1604 IEC 6F22 JIS 006P
included in the package. Battery life: about 100 hours. When battery is low, the symbol
"
" appears on the display. Replace it immediately, following the instructions given in §
5.2.
3.3. CALIBRATION
The instrument complies with the technical features listed in this manual. Its performances
are guaranteed for one year.
3.4. STORAGE
In order to guarantee the accuracy of the measurements, after a period of storage in
extreme environmental condition, wait for the necessary time so that the instrument
returns to normal measuring conditions (see § 6.2.1).
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