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5. OPERATING INSTRUCTIONS
5.1. MEASUREMENT OF AIR SPEED AND TEMPERATURE
Do not touch not expose the internal sensors found on the top side of the
telescopic probe to mechanical shocks, in order to prevent damaging them.
1. Insert the external probe on the top side by means of the relevant terminal (see Fig. 1
part 1). Pay attention to the arrow found on the connector of the probe (see Fig. 7),
which must be directed towards the front side of the instrument
2. Switch on the instrument using key ON/OFF.
3. Press key 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 slide (see Fig. 1
that the indication on the main display is
zeroing procedure (see § 4.3.2)
5. If necessary, expand the telescopic probe and position the air speed sensor in a
parallel direction to the air flow as indicated by the arrow found on the top of the probe
itself (see Fig. 7).
6. The value of air speed is indicated on the main display, while air temperature is shown
on the secondary display.
7. Press key HLD to freeze the reading on the display.
8. To use MAX, MIN functions, see § 4.3.8.
Fig. 7: Measurement of air speed and temperature
CAUTION
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part 15) until the sensors are covered and check
"
"
0.00
. In case it is not, please carry out the
EN - 8
HTA105
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