Dwyer Instruments 89088 User manual

Model:89088

INSTRUCTION MANUAL

MINI TYPE

THERMO-ANEMOMETER

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INTRODUCTION

FEATURES

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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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

0.54

54.69

0.2778

1 mph

1.6071

0.8679

87.89

0.4464

1 ft/min

0.00508

0.01138

0.01829

0.00987

1 m/s

196.87

1.944

3.6

2.24

1 knot

1.1523

1.8519

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

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.

0~50 C (0.1)

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

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.

+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.

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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.

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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.

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

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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

(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

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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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