General DAF3009 Manual de usuario
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 –3
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
What’s In the ackage . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
roduct Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 –5
Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Activate Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . 6 – 12
Measuring Air Speed and Temperatures . . . . . . . 7 –9
Measuring Airflow Volume . . . . . . . . . . . . . . . . 9 – 10
Displaying Min/Max/Avg Air Speeds
and Airflow Volumes . . . . . . . . . . . . . . . . . . 10 – 11
Measuring Relative Humidity (RH) . . . . . . . . . . . . . 11
Measuring Enthalpy . . . . . . . . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 – 13
Maintenance Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . 14 – 15
Return for Repair olicy . . . . . . . . . . . . . . . . . . . . . . . . . 15
INT ODUCTION
Thank you for purchasing General Tools & Instruments’ DA 3009
Mini Anemometer-Psychrometer with C M/CMM & Enthalpy.
Please read this user’s manual carefully and thoroughly before
using the product.
2
The DA 3009 is a one-piece vane anemometer-psychrometer that
can measure all parameters needed to install, test or fine-tune the
performance of an HVAC/R system.
KEY FEATU ES
• Measures:
Ambient temperature
Dew Point and Wet Bulb temperatures
Wind Chill Index (WCI)
Relative humidity (RH)
Air speed
Airflow volume
Enthalpy
• All temperatures displayable in° (default) or °C
• ive available air speed units: ft./min, mph, m/sec, km/hr, knots
• Airflow volume and Enthalpy readings available in Imperial or
metric units
• Min, Max and Avg session values for air speed and airflow
volume
• Large backlit dual readout LCD
• 5-minute Auto Power Off
• Small and light enough for one-handed operation
• Includes vane and sensor cap with wrist strap
• Tripod mount
• CE and RoHS approved
• 1 year limited warranty
3
WHAT’S IN THE PACKAGE
The meter comes in a blister pack with a “CR2032” button cell
pre-installed in the battery compartment. A hard copy of this
user’s manual is inside the blister card.
P ODUCT OVE VIEW
ig. 1 below shows all controls, indicators and physical structures
of the unit, as well as the location of the battery compartment.
ig. 2 shows all possible indications on the unit’s LCD.
Fig. 1. The controls, indic tors nd physic l structures of the
DAF3009
A. Vane and sensor
protection cap
B. Vane
C. Temperature-humidity
sensor
D. LCD
E. Keypad
. Battery compartment
G. Wrist strap
H. Threaded tripod
mounting hole
4
A
B
C
D
E
F
H
A. Low battery
icon
B. Upper
readout
C. Air speed
mode
indicator
D. Airflow
volume
mode
indicator
E. RH mode
indicator
. Enthalpy
mode indicator
G. Air speed units
H. RH unit
I. Enthalpy units
J. Area units
K. Lower readout
L. Area entry mode indicator
M. Dew Point mode indicator
N. Wet Bulb mode indicator
O. Wind Chill Index mode indicator
P. Airflow volume multiplier
Q. Airflow volume units
R. Air speed, airflow volume session value indicators
S. Measurement HOLD indicator
5
Fig. 2.
All possible displ y indic tions
A B C D
K
L
E F
S
Q
M
GR
J
H
I
N
O
SETUP INST UCTIONS
ACTIVATE BATTERY
1. Turn the meter over and use your thumbs or a coin to turn the
battery compartment cover on the back ( ig. 1, Callout )
clockwise 30 degrees, in the direction marked OPEN.
2. Pull and discard the tab under the pre-installed battery.
3. Replace the battery compartment cover and turn it
counterclockwise 30 degrees until it snaps shut.
Complete Setup by carefully removing the plastic film protecting
the LCD.
OPE ATING INST UCTIONS
To power on the DA 3009, press the red button. The LCD will
illuminate with the backlight on and show all possible display
indications for 2 seconds. The unit will then automatically enter
the measurement mode in which it was operating when it
powered off. The backlight will turn off after 15 seconds if no
front-panel button is pressed during that period. Pressing any
button begins another 15 seconds of backlight.
To power off the DA 3009, press and hold the button for at
least 2 seconds.
To change measurement mode, start by pressing the MODE button.
This will cause the icon of the current mode to begin flashing on
the top line. Then press the SET button one to three times, until the
icon of the mode you want begins flashing on the top line.
The figure below shows the four measurement modes in their
sequence of selection using the SET button.
6
VEL
FLOW
RH BTU
When the icon of the mode you want appears, flashing, on the top
line, press the MODE button once to stop it from flashing. Doing
this will cause one or more measurement unit icons below to
begin flashing. Press the MODE button again to stop those icons
from flashing. This causes the meter to enter real-time
measurement mode for the chosen parameter (air/wind speed,
airflow volume, RH or enthalpy).
To hold ny p ir of me surements (“freeze” the readouts),
press the HOLD button. To release the hold and resume displaying
real-time values, press the button again. This function is very
useful for making measurements in low light or when the source
of air or wind is above your head, below your knees, or around a
corner. You can make a measurement, hold it, and then read the
display up to 5 minutes later after positioning the LCD at eye level.
Why do you have only 5 minutes? To extend battery life, the
DA 3009 automatically powers itself off following any 5-minute
period in which no front-panel button is pressed.
MEASURING AIR SPEED AND TEMPERATURES
To m ke n ir speed me surement, unsnap the vane and
sensor protection cap ( ig. 1, Callout A) and let it hang from the
unit by the wrist strap. Turn the vane at the top of the unit
perpendicular to the source of air or wind. It makes no difference
whether the front of back of the vane faces the flow. The
measured air speed value will appear on the upper readout.
Allow a few seconds for the reading to stabilize.
The DA 3009’s factory default air speed measurement unit is
feet/minute (ft/m). To ch nge the ir speed unit, begin by
pressing the UNIT button. This will cause ft/m to begin flashing
on the right side of the upper readout. Then, within 15 seconds
(before the backlight extinguishes), press the SET button. This will
change the flashing ft/m term to mph, also flashing. Press the
SET button again and mph will turn to knots. Press it again to
change knots to m/s.
7
Press the SET button as many
times as necessary until the air
speed unit you prefer appears,
flashing, on the right side of the
upper readout. To save this unit,
press the UNIT button. The figure
at right shows the five available
air speed units in their selection
sequence.
When you press the UNIT button
to save your preferred air speed unit, °F—the DA 3009’s factory
default temperature measurement unit—will begin flashing on the
right side of the lower readout. To keep °F as the temperature
measurement unit, begin by pressing the UNIT button. This will
cause °F to stop flashing and the meter to resume displaying real-
time air speed and temperature measurements. To change the
temperature unit to °C, press the SET button, followed by the
UNIT button to save the selection.
The DA 3009 will “remember” the air speed and temperature
units (as well as its operating mode and other selected units and
parameters) in use each time it powers off and will resume
operating in that mode and with those units upon restart. So if
you always use ft/m and ° for air speed and temperature
measurements, you need not perform any of the above steps. And
if you always use the same air speed and temperature units (other
than ft/m and ° ), you need only perform the above procedure
once. Unlike many instruments, changing the battery does not
reset all units to their factory default.
As mentioned earlier, the DA 3009 automatically begins
measuring and displaying ambient temperature upon startup.
To displ y other temper tures whose c lcul tion includes the
effect of wind speed or humidity (Wind Chill Index, or Wet Bulb
and Dew Point temperatures, respectively), begin by pressing the
8
MODE button with the meter operating in air speed mode (with
VEL appearing on the top line of the LCD). This will cause VEL to
begin flashing. Then press the MODE button again. On meters that
have come fresh from the factory, this will cause the three terms
WCI, WET and DEW to appear, flashing, on the left side of the
LCD. Within 15 seconds (before the backlight turns off), press the
SET button as many times as necessary until the temperature you
want appears by itself, flashing, on the left side. Note that the
temperature on the lower readout changes with each press of the
SET button. To save the temperature you want, press the MODE
button while its abbreviated term (WCI, WET or DEW) is flashing.
As with air speed units, the type of temperature you select and
save becomes the display default until you change it.
When operating in Wind Chill Index mode, make sure the vane is
perpendicular to the wind direction.
MEASURING AIRFLOW VOLUME
To enter irflow volume me surement mode, begin by pressing
the MODE button with the meter operating in air speed mode
(with VEL appearing on the top line of the LCD). This will cause
VEL to begin flashing. Then press the SET button. This will cause
the flashing term FLOW to replace the flashing term VEL on the
top line of the LCD. To stop FLOW from flashing, press the
MODE button.
Note that the term AREA now appears at the left of the lower
readout. To calculate airflow volume, the DA 3009 must “know”
the area of the grille or duct through which air is passing. Before
entering that area, you should enter your preference for using the
metric or Imperial unit for airflow volume—cubic meters/minute
(CMM) or cubic feet/minute (C M), respectively.
To change CMM to CFM, begin by pressing the UNIT button. This
will cause CMM to begin flashing. Then press the SET button,
followed by the UNIT button to save the selection.
9
You can now measure the area of your grille and duct and enter
it into the DA 3009. The meter can accept any area from
0.1 ft2to 99.9 ft2. Users of metric units must convert their cm2
measurements to ft2before entering them.
To begin, press the AREA button. This will cause the left (most
significant) digit on the lower readout to begin flashing. Press the
SET button as many times as necessary until the left digit matches
the left digit of your grille or duct area. Then press the AREA button
to save that digit. This will cause the second digit from the left to
begin flashing. Again, press the SET button as many times as
necessary until the second digit from the left on the display
matches the second digit from the left of your grille or duct area.
Press the AREA button to save that digit. Repeat the process for
the right (least significant) digit. To return to any digit to change its
value, press the AREA button once, twice or three times.
To me sure the volume of ir exiting grille or duct, remove
the vane and sensor protection cap and enter airflow volume
mode (with FLOW appearing on the top line of the LCD). Turn the
vane at the top of the unit perpendicular to the source of air or
wind. It makes no difference whether the front of back of the vane
faces the flow. Allow a few seconds for the reading to stabilize.
or airflow volumes less than 9999 C M or CMM, the value on the
upper readout represents a true measurement. or airflow
volumes between 10,000 and 99,999 C M or CMM, the indication
X10 below and to the left of the upper readout is a reminder to
multiply the value shown by 10 for a true measurement. or
airflow volumes above 99,999 C M, the indication X100 is a
reminder to multiply the value shown by 100 for a true
measurement.
DISPLAYING MIN/MAX/AVG AIR SPEEDS
AND AIRFLOW VOLUMES
The DA 3009 keeps track of the maximum and minimum (fastest
and slowest) and average air speed and airflow volume values
10
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