Mastech AZ8903 Manual de usuario
OPERATION MANUAL
Model:
8904
8903
8906
Model:8903/8904/8906
RS232
INTEGRAL VANE
DIGITAL ANEMOMETER
Congratulations on your purchase
of this Integral vane anemometer.
The meter features versatile functions,
use it to check air velocity FPM (Feet
per minute) and CFM (Cubic feet per
minute) in residential , light commercial
and standard commercial systems.
Thank you for selecting the meter.
Please read this operation manual
throughly before operation.
This meter has many user-friendly
features, all the features are accessible
through the keypads.
Please contact the store or the place
you purchased for the rest models you
might interested in.
The meter is most ideal for HVAC/R
technicians measuring Heat / Ventilation
/ Air conditioning / Refrigerating wind flow
and temperature.
CAUTION: Objects strike the fan may
damage the meter.
Model:
Knot, MPH,
KM/H
selectable
AZ8903
AZ8904
AZ8906
Yes
Yes
No
Yes
No
No
Air Flow
Volume
Measurement
1
A. Measuring Air Velocity (Single point)
Feet per Minute (FPM).
B. Continuous Moving Average.
C. MIN/MAX/AVG reading on a single
point.
D. Air Velocity average for multiple
points ( 8904.8906 model only).
E. Non Sleep Mode(Bypass auto power
off).
F. Default setting ( Imperial/ Metric)
G. RS232 interface setting.
H. Auto power off function.
I. FTM , MPH , KNOT unit selectable
(8904.8906 model only).
J. Direct measuring of air flow
(Single point) CFM ( 8906 only).
K. Obtain air flow (CFM) average
for multi-point ( 8906 only).
FEATURES
Typical Measurement
a) Please placethe meter inthe
airstream. Make surethat the
airstream and thesensor
are aligned asshown ( 20
degrees maximum).
b) 3 secondsfor the
reading to stabilize.
o
20
o
20
Rear side
2
HOLD
AVERAGE
MULTI-POINT
MIN/MAX REC
SINGLE-POINT
Model:8903
ON-OFF
RESET
HOLD
AVERAGE
MULTI-POINT
SEL-MIL/H
- KNOT
MIN/MAX REC
SINGLE-POINT
Model:8904
ON-OFF/RESET
MODE-VELOCITY
FREE AREAFLOW
HOLD
AVERAGE
MULTI-POINT
SEL- MPH
- KNOTS
MIN/MAX REC
SINGLE-POINT
Model:8906
1.ON/OFF- RESET. Power ON/OFF.
Press with HOLD key to set non-sleep
mode.
2.HOLD. Freezes the reading.
3.AVERAGE MULTI-POINT.
4.MN/MX RECORD SINGLE POINT
5.SEL:MIL/H (MPH) ,KNOT. unit
selectable .
(Model:8904 & 8906 only)
6.MODE VELOCITY, FREE AREA ,
FLOW. (Model:8904/8906 only)
Air volume measurement .
BUTTON / DISPLAY
FRONT PANEL DESCRIPTION
ON-OFF/RESET
MODE-VELOCITY
FREE AREAFLOW
HOLD
AVERAGE
MULTI-POINT
SEL-MIL/H
- KNOT
MIN/MAX REC
SINGLE-POINT
MIN
mil/h c
AVG
REC
FLOW
km/h c
AREA
m/s
velHold PHKnots
ft/m 2
ft
2
m
MAX
3
16. Primary readout-Numerical display
for Air Velocity/ Air Volume/Free
area digit
17. Secondary readout -Temperature
display or records number.
18. "-" Polarity indicator for negative
temperature.
MIN
mil/h cfm
AVG
REC
FLOW
km/h cms
AREA
m/s
vel Hold PH Knots
ft/m 2
ft
2
m
MAX
INDICATORS
19. Knots.
20. Mil/h.
21. Km/h.
(KN)=1850 meters per hour
or 1.15 miles per hour
(Imperial) Miles per hour
(Metric) Km/h Kilometer
per hour
1.vel.
Air velocity measurement.
2.FLOW. Air Flow/Air volume.
3.AREA. Free area default setting.
4.Hold. Freezes the reading.
5.ft/m. Feet per minute.
2
6.ft . Feet square.(imperial)
7.m .
2meter square.(metric)
8.cfm. Cubic feet per minute.(imperial)
9.cms. Cubic meter per second.(metric)
10.C. Celsius unit.
11.F. Fahrenheit unit.
12.REC. Record and saved.
13.AVG. Average data
14.MIN. Minimum data
15.MAX. Maximum data
4
B. CONTINUOUS MOVING AVERAGE
1. Turn the power ON .
2. Place sensor in front of air flow
source.
3. Press MIN/MAX record key once.
An "AVG" and "REC" in the lower left
corner of the display to confirm the
meter is in continuous moving average
measurement mode. The display
will update every second.
(See Fig.3)
The meter has the ability to display
continuous moving average for up to
two(2) hours.
1. Press the ON/OFF button to turn the
meter on. Meter will show full display
for initial 5 seconds. (See Fig.1)
2. Unit is ready for use when LCD display
shows "vel" at upper left corner and
temperature at lower right corner.
(See Fig.2)
A. MEASURING AIR VELOCITY
(SINGLE POINT) FEET PER
MINUTE (FPM)
vel
Fig.1 Fig.2
Fig.3
ft/m
AVG
vel
m/s
5
MIN
mil/h cfm
AVG
REC
FLOW
km/h cms
AREA
m/s
vel Hold PH Knots
ft/m 2
ft
2
m
MAX
REC
C. MIN/MAX/AVG READING ON A
SINGLE POINT
1. Power the meter ON.
2. Place sensor in front of air flow
source.
3. Press MIN/MAX REC SINGLE POINT
key. The unit will begin to record
the readings.The meter displays the
average velocity by default.(see Fig.3)
Each press of the MIN/MAX button
cycles the display through:
* Real-time readings.
* MIN velocity.
* MAX velocity.
* Back to AVG velocity.
4. To revert to normal measurement
mode or clear the current MIN/MAX
and average readings, you could turn
off the meter first and then turn it on
again or press and hold MIN/MAX key
until meter beeps twice, then release.
To obtain MIN/MAX/AVG readings on a
single point.
6
Note: Feet Per Minute (FPM) readings
can be converted to CFM readings
by following below instructions:
1. Press the HOLD button to store
the readings before moving the
meter away from an air flow
sources.
2. Press MODE key to enter area
setting (see page11 for the details
of area setting). After setting, press
MODE key again to convert the
FPM into CFM.
4. Once all measurements have been
recorded, you could
press AVERAGE
key to view the
average air velocity
reading and the
number of points
which are recorded.
vel
Fig.4
Hold
m/s
vel
Fig.4-A
Hold
m/s
vel
Fig.5
Hold
m/s
AVG
1. Turn the meter on and position the
vane at the first point to be measured.
soon as the first measurement is
completed press the HOLD key,(you
will hear a single beep), and release.
The display will show HOLD above
the reading. (See Fig.4)
2. Press the MIN/MAX key,(You will hear
a single beep), and release,(the
display will show a digit 1-8). This
number represents the point number
which has been recorded.(See Fig.4-A)
3. Repeat above procedure until all
desired points have been measured
and recorded. A maximum 8 points may
be recorded at one time.
D. AIR VELOCITY AVERAGE FOR
MULTIPLE POINTS(8904,8906 only)
ll
ll
ll
ll
7
5. You could press HOLD key to revert to
normal measurement mode
6. To clear multi- point average memory,
press and hold next digit/multi point
average key until unit beeps twice,
then release.
Fig.6
Fig.7
m/s
Fig.8
m/s
ft/m
The default measuring units can be
changed by following the steps below.
The unit should be turned off before
commencing.
E. NON SLEEP MODE (Disable auto
power off)
Power unit off; press ON and HOLD at
the same time and then release ON only.
An "n" appears on the LCD then you can
release the HOLD key. The instrument
will remain on until the OFF button is
pressed.(See Fig.6 )
1. Press and hold the AVERAGE key,
then press the ON/OFF key once to
turn the unit on. When the LCD
oo
displays " ft/m,ms " and " C, F"
realease the AVERAGE key.(Fig.7)
2. To choose the metric units, pressing the
HOLD key. The LCD should display "
o
m/s, C". (See Fig.8)
F. HOW TO CHANGE THE DEFAULT
SETTING/IMPERIAL TO METRIC
Vice Versa(METRIC TO IMPERIAL)
8
3. Press the MIN/MAX REC key, the LCD
should display "S" (See Fig.10) .
Then press the HOLD key. The LCD
display 2400 or 1200 (pre-setting).
(If Baud rate change is needed, please
refer to step G.1) (See Fig.11)
4. Press the MIN/MAX REC key again,
the LCD should display "S" again.
(See Fig.10) .Then press the HOLD
key, the LCD will revert to a normal
measurement display. The default
setting is now completed.(See Fig.12)
.
To choose the imperial units, pressing the
AVERAGE key. The LCD should display
o
"ft/m, F" (See Fig.9).
ft/m
Fig.9
Fig.10 Fig.11
Fig.12
m/s
vel
9
Este manual sirve para los siguientes modelos
2
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