General Tools DAF4000 User Manual [en, es, fr]

Index

Owner's Instructions_______________________________________________________________________3 – 14

Mode d'emploi __________________________________________________________________________15 – 26

Manual de instrucciones __________________________________________________________________27 – 38

Contact Information _____________________________________________________________________ 40

I. GENERAL INFORMATION

You have just acquired a piece of high precision equipment which has been created using the most modern technology. It has been designed to stand up to intensive use. However, in order to maintain its appearance and its precision, we recommend that you treat it with care and pay careful attention to these operating instructions.

The

GENERAL® Mini Airflow is fitted with an impeller and with sensors which allow it to carry out measurements in the open air. It will give you all the information essential for your open air activities such as hang-gliding, rambling, climbing or water sports. It will give you the instant wind speed and the maximum wind speed (DAF3010, 3300, 4000), ambient temperature and wind chill temperature (3010, 3300, 4000), an electronic compass (DAF3300, 4000) as well as altitude, pressure, and trends in the weather (DAF4000).

The GENERAL® Mini Airflow ra

nge has been designed to withstand short-term immersion in water at a depth of up to one metre.

IMPORTANT ! This instrument is designed as an aid to users who are in an open air environment, but IT CANNOT replace advice and warnings from the local weather station. This means that you should regularly check and compare the measurements provided by your instrument with the information put out by the weather station.

Open-air climatic conditions can sometimes change quite dramatically and this can happen very quickly indeed. Sunny weather can, for example, change to thunderstorm conditions in the space of half an hour and sometimes less. You should therefore always follow basic safety rules whenever you undertake open air activity.

GENERAL TOOLS® can in no way be held responsible for any consequences, direct or indirect, or for any prejudice, which might result from the use of this instrument.

Technical specifications:

Size:

41 x 93 x 17 mm

Weight :

52 gr (DAF3010, 3300), 53 gr (DAF4000)

Operational temperatures :

-30°C to +60°C

II. MAINTENANCE DAF3010, DAF3300, DAF4000

The design and manufacture of this instrument have been the subject of a great deal of care. In order to make best use of the proposed functions you are advised to use the instrument in accordance with the following observations :

• Avoid at all costs items such as hair, thread, sand and other dust materials getting into the impeller, as they could cause defective r

otation of the impeller and therefore a loss of precision. If a hair or a piece of thread should manage to get into the impeller, extract it

gently using tweezers; in the case of dust or sand, you can run clean water over the impeller.

• Avoid exposing the instrument to extreme climatic conditions for over-long periods. While it uses components resistant to such t

emperatures, we recommend that you do not expose your instrument to strong sources of heat, for example under the windscreen of

a vehicle.

• Avoid careless use or sharp impacts.

• DO NOT EXPOSE the instrument to powerful chemicals. Such products could damage it.

III. Switching on DAF3010, DAF3300, DAF4000

To switch on your GENERAL® Mini Airflow, all that you need to is press briefly on the button(represented by

on the diagram below). The instrument switches on and displays the software version and the instrument model (see fig. D0.0 on the diagram below), after which the instrument moves into the mode for measuring the current wind speed or to the last mode displayed before the instrument was switched off.

IV. Switching off DAF3010, DAF3300, DAF4000

Switching off automatically (Auto-off):

Your GENERAL

Mini Airflow goes off automatically 1 minute after the button was last pressed or after the wind was last measured. This means

that it does not stop while the impeller is still turning (more than 10 seconds).

Switching off manually :

In order to switch Mini Airflow off manually (valid in every mode), hold the button pressed down until it switches off, then release.

IMPORTANT ! Permanent operation possible :

Either at the time of the manual switching off by releasing the button during the flashing of the large digits, or at the time of automatic switching off by pressing briefly on the button during the flashing. During permanent operation, any pressure on the button returns Mini Airflow into automatic off mode. Note :

if the instrument is on permanently the battery discharges rapidly (400 to 500 hours according to the model).

VI. Battery DAF3010, DAF3300, DAF4000

Your GENERAL

Mini Airflow gets its power supply from a replaceable lithium battery 3V type CR2032. To change the battery:

IMPORTANT ! This operation must be carried out with care!

ANY DEFECTIVE MANIPULATION DURING THE REPLACEMENT OF THE BATTERY CAN CAUSE LASTING DAMAGE TO YOUR INSTRUMENT. IN CASE OF DOUBT CONSULT A WATCH REPAIRER.

1. Unscrew the metal back (6 screws).

2. Unscrew the screw of the battery cover.

3. Gently remove the cover in order to extract the battery.

4. Put in the new battery observing the polarity (+ upwards), then screw back the battery cover. Make sure that the tiny tongue in the centre of the top is raised so that it touches the metal back.

5. Before refitting the back make sure that the seal is clean and securely positioned in its slot.

6. Refit the back and the 6 screws.

Normal battery life :

DAF3010, DAF3300 :

approximately 30,000 measurements of 1 minute (auto-off) and more than 20 years when off.

DAF4000 : w

ithout records : same as DAF3010, DAF3300.

with records : approximately 25,000 measurements of 1 minute (auto-off), but 7 years maximum when off.

1. Backlight DAF3010, DAF3300, DAF4000

To get the backlight to light up keep the button pressed for 1 second and as soon as the backlight lights up, release the button. The backlight remains illuminated for 3 seconds. If within the 5 seconds which follow you re-illuminate the backlight, it stays lit up for 15 seconds. Beyond these 5 seconds, it lights up again for 3 seconds. Note

: the backlight lights up in the same way in all modes.

IMPORTANT : intensive use of the backlight reduces the life of the battery / consumption approximately 100 x greater than without backlight.

2. Modes and mode changing DAF3010, DAF3300, DAF4000

Brief pressure on the button allows you to move to the following mode.

MODES :

DAF3010 (3 modes) DAF3300 (4 modes) DAF4000 (9 modes)

1. wind + max. wind 1. wind + max. wind 1. wind + max. wind

2. wind +temperature 2. wind +temperature 2. wind +temperature

3. wind + wind chill temperature 3. wind + wind chill temperature 3. wind + wind chill temperature

4. wind + compass 4. wind + compass

5. wind + altitude and max. altitude

6. wind + relative and absolute pressure

7. record of pressure trends

8. record of relative pressure

9. record of altitude

Please refer to the following sections to consult the functions available in each mode.

3. Mode for measuring the instant wind speed with maximum DAF3010, DAF3300, DAF4000

Choice of unit of measurement :

By keeping the button pressed for approximately 4 seconds, the units start to go past. You can choose between the following units : km/h (kilometres per hour), mph (miles per hour), knots, m/s (metres per second), and fps (feet per second). When the unit of your choice appears, release the button and the unit of measurement is thereby selected.

Measurement of speed :

For the measurement to be as exact as possible it is necessary to align the instrument along the axis of the wind.

Precision

: +/- 3 %

Measuring range

: from 0 to 150 km/h (42 m/s, 81 knots, 93 mph, 136 fps)

Measuring cycle

: 2 measurements per second

Display:

The display of the current speed is done on the large digits and the maximum speed reached on the small digits with the indication

Resolution :

to one decimal place up to 99.9, then in whole units.

Deletion of the maximum :

The maximum is retained even when the instrument is off. In order to reset it to zero keep the button pressed for at least 2 seconds, then release it.

4. Mode for measuring the instant wind speed with ambient temperature DAF3010, DAF3300, DAF4000

Choice of unit of measurement :

By keeping the button pressed down for at least 2 seconds the 2 units start to go past. You have the possibility to choose between : °C (degrees Celsius) and °F (degrees Fahrenheit) When the unit of your choice appears, release the button and the unit of measurement is thereby selected.

Measuring ambient temperature :

Note

: the temperature sensor is integrated with the metal back of the casing, and therefore it is the temperature of the back of the casing which is displayed. This special feature makes it possible to measure very accurately the temperature of fluids such as :

water (springs, streams, etc.) by immersing the instrument several centimetres;

surfaces (ground, metal parts, refrigerator interiors etc) by laying as closely as poss ble the back of the instrument on the surface to be measured;

ambient air, either by allowing the instrument to reach the air temperature, which can take several minutes, or even several dozens of minutes according to the wind speed (avoid direct sun rays and contact of the back of the casing with your fingers). Otherwise, to get a rapid and precise measurement, but the back of the casing into contact with an object which is the same temperature as the air (vehicle bodywork, metal barrier, smooth walls etc.) avoiding surfaces in dark colours and exposed to sunlight).

Measuring range of the sensor :

from -50°C to100°C

Measuring cycle

: one measurement every 0.5 seconds

Display:

The display of the instant wind speed is done on the large digits while the ambient temperature is displayed on the small digits. Resolution (temperature) :

to the tenth of a degree

5. Mode for measuring the current wind speed with the wind chill temperature DAF3010, DAF3300, DAF4000

Low temperatures present a danger to the human body and this danger is aggravated by the speed of the wind. The Mini Airflow meters show immediately the temperature felt by the body and warns of risks of frostbite and hypothermia.

WHICH MEANS : The wind chill factor is calculated on the basis of ambient temperature and wind speed. In the event of wind, it gives an indication of the loss of heat by the body if the temperature is less than 10°C. This is the formula which was adopted in January 2003 by the United States Federal Office for Meteorological Coordination with the Meteorological Service of Canada (MSC), the US Department of Defence (DoD) and the United States National Oceanic and Atmospheric Administration (NOAA).

Example

: an ambient temperature of 0°C and a wind of 30 km/h act on your body as if the temperature were -7.8°C !

Choice of the unit of measurement for temperature :

See section 4, choice of the unit of measurement.

Display:

The display of the instant wind speed is made on the large digits and the wind chill temperature on the small digits with the indication

. Resolution (temperature) : to the tenth of a degree Measuring cycle

: 2 measurements per second

6. Mode for measuring the instant wind speed with electronic compass DAF3300, DAF4000

Choice of the unit of measurement (wind) :

See section 3, choice of the unit of measurement.

Compass display :

The compass display is given in degrees on the small digits.

WHICH MEANS ! Your GENERAL

Mini Airflow tells you magnetic north, and

not geographical north !

Measurement :

To carry out a measurement as accurate as possible, hold your instrument perfectly vertical (fig. A). If the figures are replaced by

, that means that the instrument is too tilted or that it is being disturbed by a nearby magnetic source.

fig. A

Calibration :

IMPORTANT ! Calibrate your Mini Airflow before the first use and at each change of environment or battery.

When the instrument is first energised, the compass shows

. So you carry out a calibration as follows :

Hold the button pressed down for approximately 3 seconds, and when

appears in the large digits, release. Then turn

yourself round until the instrument is showing

, then, in order to validate the calibration, press briefly on the button.

During the calibration, the instrument shows in succession

, , then and finally in front of the small digits.

This operation needs to take place at the speed of 1 turn in approximately 30 seconds.

To obtain an accurate calibration, the impeller MUST NOT

turn ! If there is wind, shelter the impeller between your thumb

and your index finger.

Note

: The lines of a terrestrial magnetic field are disturbed by metal environments, buildings, electricity pylons, vehicle interiors, metal boats and also by magnetic fields generated by any electrical machinery or equipment and by magnets. It is therefore necessary, in order to obtain accurate measurements, to move away from the sources of disturbance, or to recalibrate.

ILJ

7. Mode for measuring instant wind speed with current altitude DAF4000

IMPORTANT ! This instrument calculates altitude by using air pressure. It is therefore quite normal for the altitude to change when the air pressure changes. For this reason the instrument needs to be calibrated as often as possible.

Choice of the unit :

By keeping the button pressed for approximately 4 seconds, the units start to go past. You can choose between the following units : m (metres) and ft (feet). When the unit of your choice appears, release the button, and the unit of measurement is thereby validated and the instrument returns to the mode of measuring the instant wind speed with display of the altitude.

Display of the maximum altitude :

Hold the button pressed down for approximately 2 seconds and at the moment when the indication

is displayed, release the button; in this way the instrument goes into the mode for measuring the instant wind speed with display of the maximum altitude. In order to quit this mode press once on the button. The instrument then returns to the wind/altitude mode.

Calibration of the altitude :

Hold the button pressed down for approximately 3 seconds, and when

appears in the large digits, release. Hold the button pressed down to increase the figure for the altitude in steps of 1 unit. To reduce the same, release then once again hold the button pressed down. A brief pressure on the button validates the new altitude.

Deletion of the maximum :

The maximum is retained even when the instrument is off. To delete the figure for the maximum, hold the button pressed down for approximately 2 seconds, then release it. This operation should be carried out after the mode of display of the max. altitude.

8. Mode for measuring the wind speed with display of relative and absolute pressure DAF4000

WHICH MEANS : The instrument offers 2 modes for displaying pressure: QFE pressure and QNH pressure. These two abbreviations (QFE and QNH) are taken from the famous “Q” code. This code was instituted by the London conference of 1912. It is made up of a list of three letter indicators, valid for all the countries of the world. Intended mainly for telegraphic and radio-telegraphy transmissions (in Morse) it is made up of a list of abbreviations, using three letters to summarise without ambiguity phrases, questions or responses which would take too long to formulate in clear text, thus eliminating the risks of errors arising out transmission, reception, language and interpretation. The “Q” is still widely used in our day by ships and amateur radio enthusiasts. It is still official usage in radio telephony. The aeronautical world does not use all of it, but regularly uses part of it.

CODE MEANING

QFE Atmospheric pressure at ground level, also known as absolute pressure.

QNH Atmospheric pressure obtained by calculation at sea level in standard atmospheric conditions,

also known as relative pressure. This is the pressure mentioned in meteorological bulletins or on the television.

Choice of the unit :

If the button is kept pressed down for at least 4 seconds the units start to pass by, and you have the possibility of choosing between the following units: hPa (hecto Pascals) and inHg (inches of mercury). When the unit of your choice appears, release the button. This validates the unit of measurement and the instrument goes back to the mode wind / relative pressure (QNH).

Display of absolute pressure (QFE) :

Keep the button pressed down for approximately 2 seconds and at the very moment when the indication

(QFE) is displayed in the large digits, release it. The instrument then goes into the mode for displaying absolute pressure. To quit this mode, press once on the button, and the instrument returns to the mode wind / relative pressure (QNH).

Calibration of relative pressure (QNH) :

Hold the button pressed down for approximately 3 seconds, then release it at the moment when

is displayed on the large digits. Then the adjustment (increase/reduction) is carried out in the same way as for the calibration of altitude, see section 7 (altitude cal bration).

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General Tools DAF4000 User Manual [en, es, fr]

Specifications and Main Features

Frequently Asked Questions

User Manual