Fervi A005 User manual

USE AND
MAINTENANCE MANUAL
Digital anemometer
Art. A005
ORIGINAL INSTRUCTIONS
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MEASURING
INSTRUMENTS
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FOREWORD
Read this manual before any operation
ORIGINAL INSTRUCTIONS
Before starting any operation it is compulsory to read this instruction manual. The guarantee
of smooth operation and full performance of the instrument is highly dependent on the
application of all the instructions contained in this manual.
Operator Qualification
The workers responsible for using this device must have all the necessary information,
education and receive adequate training regarding safety, including:
a) The conditions of use of the equipment;
b) Foreseeable abnormal situations, pursuant to Article 73 of Legislative Decree
81/08.
We guarantee the instrument complies with the specifications and technical
instructions described in the Manual on the date of its issuance (shown in this page).
On the other hand, the instrument may also be subject to important technical changes
in the future, without the manual being updated.
Therefore, see FERVI for information about modifications that could be implemented.
REV. 2 March 2014
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CONTENTS
1 INTRODUCTION ........................................................................................ 4
2 SPECIFICATIONS ...................................................................................... 5
2.1 General Characteristics .................................................................................................5
2.2 Technical Specifications ................................................................................................6
2.3 Measurement specifications ..........................................................................................6
2.3.1 Wind speed ............................................................................................................... 6
2.3.2 Temperature ............................................................................................................. 6
3 DESCRIPTION ........................................................................................... 7
3.1 Description of the instrument panel..............................................................................7
4 MEASURING PROCEDURE .......................................................................... 8
4.1 Measuring air speed ......................................................................................................8
4.2 Measuring temperature.................................................................................................8
5 REPLACING THE BATTERY......................................................................... 9
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1 INTRODUCTION
The digital anemometer is an measuring instrument which is light, compact and easy to carry
but at the same time precise and sophisticated, ideal for use by both amateurs and
professionals.
Convenient and easy to use, thanks to its robustness and reliability it will guarantee years of
use, if the operating instructions are properly followed.
BEFORE USING THIS DIGITAL ANEMOMETER, CAREFULLY READ THIS MANUAL THAT
DESCRIBES THE VARIOUS USES.
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2 SPECIFICATIONS
2.1 General Characteristics
LCD screen 40x20mm.
Character height equal to 10mm, up to 4 characters can be displayed.
Storage of the maximum recorded value;
Conventional rotors eliminate the possibility of error;
High-speed bearings, for extreme precision at all speeds of rotation.
Low battery indicator light;
Units of measurement for wind speed used by the instrument:
om/s (metres per second);
okm/h (kilometres per hour);
oft/min. (feet per minute);
oknots (nautical miles per hour)
Units of measurement for temperature used by the instrument:
o°C (degrees Celsius);
o°F (degrees Fahrenheit).
Operating temperature: from 0°C to 50°C
Operating humidity: lower than 80%
Power supply: One 9V battery;
Weight: 325g
Dimensions: 140x71x32mm;
Rotor size:72mm;
Hard case for transportation;
instruction manual.
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2.2 Technical Specifications
Display Character height 10mm
4 characters can be displayed
Unit of measurement Speed: m/s - km/h - ft/min. – knots
Temperature: °C - °F
Operating temperature 0°C ÷ 50°C
Operating humidity ≤ 80%
Structure of the wind speed sensor Conventional rotor with high speed bearings
Temperature sensor Resistance sensor
Power supply One 9V battery
Power consumption Approximately 25mA in d.c.
Weight 325g
Size 140x71x32
Standard accessories
Instruction manual
Probe sensor
Hard case
2.3 Measurement specifications
2.3.1 Wind speed
MEASUREMENT RANGE READING ACCURACY
m/s 0.4 ÷ 30 0.1 ± (2%+1digit)
Km/h 1.4 ÷ 108 0.1 ± (2%+3digits)
Ft/min. 80 ÷ 5910 0.1 ± (2%+2digits)
Knots 0.8 ÷ 58.3 0.1 ± (2%+2digits)
2.3.2 Temperature
MEASUREMENT RANGE 0 ÷ 60°C - 32 ÷ 140°F
RESOLUTION 0.1 °C - 0.1°F
ACCURACY 0.5°C - 0.9°F
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3 DESCRIPTION
3.1 Description of the instrument panel
Figure 1 - Overview of the device
3-1 On / off switch
3-2 LCD screen
3-3 Power output (0~2VDC)
3-4 Led selection indicator
3-5 SELECT, press this button to select the desired unit of measurement.
3-6 HOLD, press this button to keep the peak value measured on the screen, press
the button again to display the actual value measured
3-7 Optional sensor input
3-8 Led function in use indicator
3-9 FUNCTION, pressing this button switches from the mode for measuring the wind
speed to the mode for measuring the temperature
3-10 Wind speed measurement sensor
3-11 Sensor sleeve
3-12 Battery compartment
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4 MEASURING PROCEDURE
4.1 Measuring air speed
1. Put the on/off switch of the instrument (3-1) to the "ON" position.
2. Select the desired unit of measurement, using the "SELECT" button.
3. Take hold of the meter and position the rotor against the air flow to be measured.
4. The air flow speed will be shown on the screen in the selected measurement unit.
Air Flow Measurement
The yellow point on one side of the rotor, indicates the opposite direction to the measurement
direction of the air flow.
5. During the measurement, it is possible to display on the screen the peak value
recorded by pressing the "HOLD" key, the screen will display the word "max", which
indicates that the function is on, pressing the button again the message will disappear
from the screen making it possible to see the actual value of measurement.
4.2 Measuring temperature
1. Put the on/off switch of the instrument (3-1) to the "ON" position.
2. By pressing the "FUNCTION" button select the desired unit of measurement for the
temperature reading (°C - °F).
3. Place the rotor head in the opposite direction to the air flow, this will allow the
temperature of the latter to be measured.
Measuring Temperature
During the measurement of temperature, the unit of measurement can only be changed via
the "FUNCTION" button, the "SELECT" button is not active.
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5 REPLACING THE BATTERY
Opening the instrument
Make sure that the instrument is disconnected and switched off before replacing the battery.
1. Place the anemometer on a level surface with
the screen facing down.
Figure 2 – rear of the instrument
2. Remove the battery compartment cover by
sliding it in the direction indicated by the arrow.
Figure 3 – Battery compartment
cover
3. To insert / replace the battery, connect the 9V
battery to the socket inside the battery
compartment.
Figure 4 - Removing the battery
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4. Place the battery inside the battery
compartment, and then replace the cover.
Figure 5 - Inserting the battery
Battery replacement
The operation must always be performed with the instrument off.
Be particularly careful to avoid pinching the wires of the connection socket of the
battery while inserting the battery inside the battery compartment and when closing the
battery compartment cover.
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