Edison TVA150 Operating Manual

Digital Thermometer and Vane
Anemometer

OPERATING MANUAL

Functions

•

Measuring:

- Airflow: m/s, km/h, fpm, mph, kts.

- Beaufort scale.

- Temperature: °C and °F.

•

Range: 0.4 ~ 20m/s, 80 ~ 4000fpm.

-10 ~ 50°C (14 ~ 122°F).

•

Resolution: 0.1m/s, 1fpm, 0.1°C, 0.1°F.

•

Functions include: Data hold, LCD display with
optional back-light and Auto power ‘off’.

•

Complete with meter head cover, wrist strap
and hard carry case.

ORDER CODE: EDI-312-4020K

MODEL TVA150

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Content

1. GENERAL INSTRUCTIONS ...................................................................................... 3

2. TECHNICAL SPECIFICATIONS ................................................................................. 4

3. DESCRIPTION ......................................................................................................... 4

4. OPERATION INSTRUCTIONS .................................................................................. 6

5. MAINTENANCE ....................................................................................................... 7

6. PACK CONTENT ...................................................................................................... 7

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Digital Thermometer and Vane Anemometer

1. GENERAL INSTRUCTIONS

Thank you for purchasing the Edison Digital Temperature and Vane Anemometer.
To get the best service from this instrument, read carefully this user manual and
respect the detailed safety precautions.
This meter is a flow/temperature measuring instrument. It is idealy used to
measure air speed at ventilation outlets and to test temperatures in residential
and commercial environments such as offices, storerooms, greenhouses and
places where climatic conditions can also be analysed.

1.1. Precautionary safety measures

To get the best service from this meter, please read this manual carefully.

1.2. During use

• If the ‘OL’ symbol appears on the LCD, it means the reading is outside the
measuring range. Please keep to the permitted measuring range.

• NEVER store the product together with solvents, acids or other aggressive
substances.

• When the battery voltage is under a sufficient operation level, the symbol
will show on the LCD. The batteries will need to be replaced with new.

1.3. Maintaining the product

• DO NOT measure in high temperature, high humidity places.

• Air flows through the meter from the rear to the front.

• When not using the instrument for a long time, please remove the batteries
and avoid storing in high temperature and high humidity.

• DO NOT try to unscrew the vane sensor.

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2.

TECHNICAL SPECIFICATIONS

Display: 4 digits LCD Display.
Parameters: m/s, km/h, fpm, mph, kts Beaufort scale, °C and °F.
Resolution: 0.1m/s 1fpm: 0.1°C, 0.1°F.
Range: 0.4 ~ 20m/s, 80 ~ 4000fpm, -10 ~ 50°C, 14 ~ 122°F.
Accuracy: ± (2% of reading + 0.3m/s).

± (2% of reading + 60fpm)
±1°C, ±1.8°F.

Sample rate: 2 time /sec.
Auto power off: Approx. 20 minutes.
Operating environment: -10 ~ 50°C, (14 ~122°F) 0 ~ 80%RH (relative humidity)
Storage environment: -20 ~ 60°C (-4 ~140°F) 0 ~ 80%RH (relative humidity)
Dimension: 30(H) x 60(W) x 157(L)mm
Weight: 140g
Accessories:

DC1.5V (AAA) ....................................x 3

Strap ..................................................x 1

Users manual ....................................x 1

Hard carry case ................................x 1

3. DESCRIPTION

3.1. Instrument Familiarisation

1.

Sensor cover.

2.

Vane sensor.

3.

Temperature sensor.

4.

LCD display.

5

Unit key.

6.

On/Off key.

7.

Function key.

1

2

3

4

5 7

6

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Digital Thermometer and Vane Anemometer

3.2. LCD Display

8

9

SYMBOL FUNCTION DESCRIPTION

Indicates it is now in the data-holding state

Indicates the maximum values since the instrument was
last switched on or last reset.

Indicates the minimum values since the instrument was
last switched on or last reset.

Measure values: Air flow Temperature

Unit of air flow

Temperature Unit

Indicates the calibration mode.

Indicates low power of batteries.
Batteries should be replaced.

8

9

HOLD

MAX

MIN

CAL

m/s km/h
fpm mph
kts Beau

°C °F

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4. Operation Instruction

• To ensure the accuracy of the measured readings, all interference sources
which may affect the measurement results for airflow/temperature (such as
the hand or obstructions) must be clear from the sensor.

• To guarantee correct readings: position instrument so that air flows through
from the rear to front of the meter with the vane at 90° to the wind direction.

4.1. ON/OFF

1. First remove the meters protective sensor cover.

2. Press the

ON/OFF

key to turn the power ‘ON’.

3. The LCD will display the current value of vane speed and temperature.
Default setting is m/s / °C (meters per sec./temperature).

4. To turn the meter ‘off’ press the

ON/OFF

key.

4.2. Unit key

This key sets the unit of airflow and temperature required for testing.

1. When the meter is switched ‘on’ p

ress the

UNIT

key to change through the

6 different

airflow settings available for measuring.

2.

Settings

are as follows:
m/s = meters per second (Default setting)
km/s = Kilometres per second
fpm = Feet per minute
mph = Miles per hour
kts = Knots per second
Beau = Beaufort scale

3. Temperature can be measured in both °C and °F.

4. To change between

temperature settings

from °C (Default) to °F, press and

hold the

UNIT

key for 1 sec. To change back to °C press and hold the

UNIT

key for 1 sec.

4.3. Func. key

1. When the meter is switched ‘on’ and the required unit has been set p

ress the

FUNC.

key to

display the

‘HOLD’,

Maximum or Minimum readings, this is

acknowledged with the symbol on the LCD display.

2. To cancel the

‘HOLD’

‘MAX’ or ‘MIN’ , readings press the

FUNC.

key until the

symbols no longer appear on the LCD Screen.

MINHOLD MAX

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Digital Thermometer and Vane Anemometer

Func. key - Back light control

1. Press and hold the

FUNC.

key for 1 sec. The back light will be turned on.

2. Press and hold the

FUNC.

key once again for a 1 sec. The back light will be

turned off.

NOTE:

If the back light is not closed within 60 seconds, it will turn ‘off’ automatically.

4.5. Auto power off setting

When the meter is powered on, it is under auto power off mode. This means the
meter will power itself ‘off‘ after 20 minutes if no keys are operation.

To override the auto power off mode follow the following instruction:

1. Press and hold the

ON/OFF

key until the LCD display ‘AP ON’.

2. Press the

UNIT

key to select ‘AP ON’ or ‘AP OFF’.

3. Then press the

FUNC

. key to confirm the setting.
AP ON = Auto power off activated.
AP OFF = Auto power off deactivated.

4. To revert back to the default setting switch the meter off and on again.

5. Maintenance

5.1. CLEANING INSTRUCTIONS

The meter may be wiped down with a wet sponge or cloth using a mild water
based detergent or anti-bacterial soap and rinsed under a gentle stream of cold
water.
NOTE:

This unit is not designed for complete submersion or washing in water.

5.2. BATTERY REPLACEMENT

Use the following procedure:
When the battery voltage drops below the required operation range the
symbol will appear on the LCD display and the batteries need to be replaced.

1. On the back of the meter, slide the battery cover in the direction of the
arrowhead to open the battery cover.

2. Replace the batteries with 3 new 1.5V batteries (AAA).

3. Replace the battery cover.

6.

PACK CONTENTS

• Digital multimeter

• Wrist strap

• Instruction manual

• DC1.5V x3 AAA batteries (installed)

• Carry Case

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Edison Products are continuously being developed and improved.

All details and illustrations are for guidance and may be subject to change.

89/336/EEC amended by 2004/108/EC

DECLARATION OF

CONFORMITY

We hereby certify that the EDISON TVA150 Airflow, Velocity & Temperature

Tester complies with:

EN61326-6:2006 & EN61326-2-2: 2006

Official Agent

The Kennedy Group Ltd

EDISON

The Power Factory, Wigston, Leicester, England, LE18 2FS

Signed:

Name: Keith Read

Position: HSQE Group Manager

Date: December 2014

Always dispose of unwanted tools, accessories and packaging materials in an
environmentally friendly manner.

For EU and EEA countries only.

In observance of European Directive 2002/96/EC on Waste Electrical and Electronic
Equipment (WEEE) and its implementation in accordance with national law, electrical goods
that have reached the end of their life must be collected separately and returned to an
environmentally compatible recycling facility.

Do not dispose of electrical goods with domestic waste materials as inappropriate disposal
may cause potential hazards to the environment and human health.

For further information, please contact your local authority or the retailer from whom you
purchased the product.

This product does not contain any restricted substances in concentrations and applications
which are banned by the European RoHS Directive.

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