Manual
5
for which the volume flow rate is required. If working in metric units, calculations must be in m
2
. If
working in Imperial units, calculations must be in ft
2
. Switch the instrument to
“Area +” mode and
observe the area value displayed from precious feedings. If the new area, that is measured, is larger
than the one displayed press the trigger to increase the displayed area to the calculated figure. If the
area is less than the figure displayed push the mode button to change to
“Area -” mode and press
the trigger to reduce the displayed area to the calculated figure. When the correct area has been
displayed use the Mode key to select the required
“Vol” mode.
Note:
If the area is entered incorrectly, the volume flow rate reading will also be incorrect. The last
area value will be retained in the memory even when the instrument is switched off.
4.4
Low battery indication
When the "
BAT
" symbol appears, the RVA801/LCA301 has about 60 minutes of battery life
remaining. If the battery is not replaced by then, the measurement accuracy will decrease.
4.5
Serial Number
The instrument
’s serial number can be verified by holding both the trigger and mode key when
switching on the device.
5. Care, Maintenance and Service
Please return the Product Registration Card immediately to the manufacturer. This allows him to
send service reminders, special offers, and important information about your product.
• Remove batteries from instrument if not used for an extended period of time.
• Do
not
bend or touch blades; accuracy will be affected.
• Do
not
immerse in liquids.
• Do
not
drop the instrument.
• Use carrying case for storage, transport, and protection from dust.
• Use a clean damp cloth to wipe the instrument case. Do
not
wipe the blades.
5.1
Service Return Process
Return the RVA801/LCA301 for service in case the instrument was dropped, blades were deformed,
or liquid spilled on the instrument, particularly the blades. Before sending your instrument for
calibration or repair, obtain a Return Material Authorization (RMA) number by visiting the
manufacturer
’s website or contacting customer service. When obtaining an RMA number, you will
also learn the fees for service or calibration and receive shipping instructions.
6. Specifications
Measurement Range:
Velocity
50 to 6000 fpm
0.25 to 30 m/s
Temperature
32 to 140 °F
0 to 60 °C
Volumetric
1-9999000 cfm
1 - 999999 l/s
Flow Rate
1 - 999999 m
3
/h
0.01
– 3000 m
3
/s
Area Input
0.043 - 900 ft
2
0.00399 - 90 m
2
Actual range is a function of velocity and area input.
