Dwyer Instruments 89088 User manual

Model:89088
INSTRUCTION MANUAL
MINI TYPE
THERMO-ANEMOMETER
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INTRODUCTION
FEATURES
1.
Congratulations on your purchase of the
unique mini Anemo-Thermometer.
The meter features big display of Air
Velocity and Temperature, simple and
easy to operate, 7 units of scale to be
selected .
A pocket design makes it convenient and
portable, easy to use and to get an
accurate reading.
INTRODUCTION
This package contains:
The meter x 1
CR2032 battery x 1
Operation manual x 1
Wrist strap x 1
Plain box x 1
Pouch x 1
Temp./Windchill : Averaging & LCD
display is updated every second.
Windspeed : Moving 2-sec average
with maximum 2-second average.
LCD is updated every second.
Temperature sensor : Sealed
precision thermister.
Shock proof housing.
One button data hold operation.
Records maximum reading.
o o
Unit C/ F switchable.
Replaceable lithium battery.
6 different windspeed units selectable.
Safety wrist strap makes it carry
around and avoids falling down.
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2.
1. Vane impeller
2. Precision thermister temp. sensor
3. LCD display
4. POWER and HOLD key
5. UNIT and MODE key
6. Battery compartment(on rear side)
7. Wrist strap holder
DESCRIPTION
Accessory included:
Wrist strap. Battery (CR2032). Manual.
Pouch
UNITS CONVERSION TABLE
mph
km/hr
knots
ft/min
m/s
1 km/hr
0.6222
1
0.54
54.69
0.2778
1 mph
1
1.6071
0.8679
87.89
0.4464
1 ft/min
0.00508
0.01138
0.01829
0.00987
1
1 m/s
196.87
1.944
3.6
2.24
1
1 knot
1.1523
1.8519
1
101.27
0.5144
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Power off
Power Supply
Air velocity range & Res.
Air velocity accuracy
Dimension
Impeller Dia.
Unit in Imperial
Unit in Metric
Display
Power off
Unit
SPECIFICATION
Automatic shut off
after 5 minutes
CR2032 battery x 1
0.5~44.7 M/H (0.1)
60~3937 FT/M (2)
130 x 43.5 x 16mm
KNT, BF
o
C , M/S, KMH
OF , FT/M, M/H
0.4~38.8 KNT (0.1)
1.1~20.0 M/S (0.1)
0.8~72.0 KMH (0.1)
1~8 Beaufort (1)
Temperature range & Res.
o
0~50 C (0.1)
o
32~122 F (0.1)
Temperature accuracy
Battery Life 48 hours
(continuous use)
meter per second
Feet per minute
Knot
M/S
FT/M
KNT
KMH
M/H
BF
NOTE:
24mm
Kilometer per hour
Beaufort
Mile per hour
Air velocity display
Update every second.
Response time: 1 min
Temperature response
LCD update every sec.
and display every 2
second average.
3.
+5% or + last
significant digit
(whichever is greater)
o o
+1 C (+2 F)
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DISPLAY
Air velocity unit:
BF, FT/M(feet per minute), M/H
(mile per hour), KMH (kilometer per
hour), M/S(meter per second)& KNT
Primary digital display:
Air velocity or Air temperature or
windchill ( ).
or is the unit of temperature.
: the maximum air velocity since
powered on.
:To freeze the latest display.
:Low battery reminder.
KEYPAD
This meter can be operated by
pressing two keys.
-Press to turn on the meter.
-Press more than 3 seconds
to turn off the meter.
-In normal mode, press to
freeze the readings.
- In power off mode, press
more than 3 seconds to
disable the auto sleep mode.
4.
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-In air velocity mode, press
these two keys to change
the air velocity unit.
-In air temperature mode,
press these two keys to
change the temperature unit.
+
By pressing the key momentarily.
The full display will appear (Fig.1) The
top display indicates the unit of wind
speed and the primary display indicates
the value (Fig. 2)
Fig.1
POWER ON
Fig.2
By pressing and holding the key
more than 3 seconds to power off the
meter.
TAKING MEASUREMENTS
Hold the meter and target the air source
from the rear of the unit. When holding
the meter, hold it at arm’s length and
away from your body.
-In normal mode, press to
display different modes in
turns: Velocity/Max. Velocity
/air temp./windchill.
5.
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To select the air velocity unit when you
are in air velocity mode. Press and
simultaneously repeatedly to scroll
the units of measurement.
The meter defaults BF (Fig.6 & 7)
WIND SPEED
+
Fig.6 Fig.7
UNITS SELECTION
To select the temperature unit, first of all,
make sure you are in temp. mode (see
above section for mode switching). Press
and simultaneously to change
the units of measurement.
o
The meter defaults F (Fig.4 & 5)
TEMPERATURE
Press
+
Fig.4 Fig.5
The default display mode is air velocity.
To change the display mode to air temp.,
Press key repeatedly until LCD
changes to air temperature.
When re-powered on,
the meter will stay
at the mode which
you last selected.
Fig.3
AIR VELOCITY & TEMP. MODE
6.
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After a measurement session, press
until “MAX”icon appears on the
LCD. (Fig. 10). ONLY the air velocity will
represent the highest readings since the
meter was last powered on.
MAX. OPERATION
Press key until “WCI”
icon appears. (Fig.11)
The temperature display will now factor
in the wind chill.
To return to normal operation, press
key again and WCI icon will
disappear.
repeatedly
WIND CHILL INDICATOR
Fig.11
Fig.10
To freeze the reading, press the
key while taking measurements. “ “
will appear on LCD and the reading is
frozen. To return to normal operation,
press key again. (Fig. 8&9)
DATA HOLD
Fig.8 Fig.9
7.
(Air velocity) (Air temperature)
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BATTERY REPLACEMENT
If the meter does not power on as usual or
the battery icon “ “ appears on LCD,
replace with a new lithium battery. To do
so, turn the battery compartment cover in
a COUNTERCLOCKWISE direction to
remove it. (Fig.13)
Observe the position of the battery and
replace a new one in the same position.
Affix the battery compartment cover by
turning it in a CLOCKWISE direction.
Dispose of the lithium battery in
accordance with local, state, or national
waste disposal codes.
BAT 2032
OPEN
Fig.13
The meter will automatically shut down
to preserve battery life after 5 minutes
of inactivity.
To cancel this function, press and hold
more than 3 seconds before turning
on. Now, LCD will display “n” and then
release key.
The meter defaults as sleep mode.
Sleeping disable mode is invalid once
the meter is turned off. (Fig. 12)
AUTO POWER OFF
Fig.12
8.
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9.
CAUTION
NOTE:
The meter is accurate at low and mid-
range air speeds. Consistent use at very
high speeds., ie, From the window of a
fast-moving car will damage the impeller’s
bearing and reduce accuracy.
NOTE:
When you program the meter and then
restart the meter, it will default to the last
mode (except the sleep mode) and unit
used.
NOTE:
You can remove the transparent protection
film of the LCD if you feel the display is
blurred.
.TROUBLE SHOOTING
1. Power on but no display
a) Make sure the time of pressing
key is > 0.1 second.
B )Check the batteries are in place with
good contact & correct polarity.
c) Replace battery or move away the
battery for one minute and re-install.
2. Display disappear
a) Replace a new battery.
b) Disable the auto power off function
before power on for long time using.
3. Err
The temp. related components or circuit
is damaged. Sent back for repair.
5. Windspeed reading is always zero
The windspeed components or circuit
is damaged. Sent back for repair
4. HI
The windspeed is higher than 44.7M/H
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