Edison TVA150 Operating Manual
Edison TVA150 is a digital thermometer and vane anemometer that measures airflow, temperature, and wind speed. It has a range of 0.4 to 20 m/s for airflow, -10 to 50°C for temperature, and 80 to 4000 fpm for wind speed. It can display readings in m/s, km/h, fpm, mph, kts, Beaufort scale, °C, and °F. Additional features include data hold, max/min readings, auto power off, and a backlit LCD display. It's ideal for measuring airspeed at ventilation outlets and testing temperatures in various environments like offices, greenhouses, and more.
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EDI-312-4020K_Instructions_Layout 30/04/2015 15:06 Page 1
ORDER CODE: EDI-312-4020K
MODEL TVA150
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.
EDI-312-4020K_Instructions_Layout 30/04/2015 15:06 Page 2
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
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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.
2
3
4
5
6
7
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Digital Thermometer and Vane Anemometer
3.2. LCD Display
8
9
SYMBOL
HOLD
MAX
MIN
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.
m/s kts km/h mph Unit of air flow
°C °F
CAL
Temperature Unit
Indicates the calibration mode.
Indicates low power of batteries.
Batteries should be replaced.
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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’ press 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 press the
FUNC. key to display the ‘HOLD’, Maximum or Minimum readings, this is
HOLD MAX symbols no longer appear on the LCD Screen.
MIN
2. To cancel the ‘HOLD’ ‘MAX’ or ‘MIN’ , readings press the FUNC. key until the
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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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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
For EU and EEA countries only.
Edison Products are continuously being developed and improved.
All details and illustrations are for guidance and may be subject to change.

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