Operation Guide 5113 5213

3. Rotate the map without moving the watch so the northerly direction

To find the bearing to an objective

North indicated on the map

 

Current

N

location

N

North indicated by second hand

indicated on the map matches north as indicated by the watch.

• If the watch is configured to indicate magnetic north, align the

map’s magnetic north with the watch indication. If the watch has

been configured with a declination to correct to true north, align

the map’s true north with the watch indication. For details about

magnetic declination correction, see “Calibrating the Bearing

Sensor” (page E-27).

• This will position the map in accordance with your current location.

4. Determine your location as you check the geographic contours around

you.

N

N

Objective

Current location

12o’clock

position

1.Set the map so its northerly indication is aligned with north as indicated by the watch, and determine your current location.

•See “To set a map and find your current location” on page E-31 for information about how to perform the above step.

2.Set the map so the direction you want to travel on the map is pointed straight in front of you.

3.With the watch on your wrist, position it so the face is horizontal.

4.While in the Timekeeping Mode or in any of the sensor modes, press C to take a compass reading.

•The reading result will appear on the digital display after about two seconds, and the second hand will point to north.

5.Still holding the map in front of you, turn your body until north as indicated by the watch and the northerly direction on the map are aligned.

•This will position the map in accordance with your current location, so the bearing to your objective is straight ahead of you.

North indicated by second hand

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Compass Precautions

This watch features a built-in magnetic bearing sensor that detects terrestrial magnetism. This means that north indicated by this watch is magnetic north, which is somewhat different from true polar north. The magnetic north pole is located in northern Canada, while the magnetic South Pole is in southern Australia. Note that the difference between magnetic north and true north as measured with all magnetic compasses

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Taking Barometric Pressure and Temperature Readings

This watch uses a pressure sensor to measure air pressure (barometric pressure) and a temperature sensor to measure temperature.

tends to be greater as one gets closer to either of the magnetic poles. You should also remember that some maps indicate true north (instead of magnetic north), and so you should make allowances when using such maps with this watch.

Location

•Taking a direction reading when you are near a source of strong magnetism can cause large errors in readings. Because of this, you should avoid taking direction readings while in the vicinity of the following types of objects: permanent magnets (magnetic necklaces, etc.), concentrations of metal (metal doors, lockers, etc.), high tension wires, aerial wires, household appliances (TVs, personal computers, washing machines, freezers, etc.).

•Accurate direction readings are impossible while in a train, boat, air plane, etc.

•Accurate readings are also impossible indoors, especially inside ferroconcrete structures. This is because the metal framework of such structures picks up magnetism from appliances, etc.

Storage

•The precision of the bearing sensor may deteriorate if the watch becomes magnetized. Because of this, you should store the watch away from magnets or any other sources of strong magnetism, including: permanent magnets (magnetic necklaces, etc.) and household appliances (TVs, personal computers, washing machines, freezers, etc.).

•Whenever you suspect that the watch may have become magnetized, perform the procedure under “To perform bidirectional calibration” (page E-29).

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Barometric pressure differential indicated by second hand

Barometric Barometric

pressure pressure graph

Temperature

To enter and exit the Barometer/Thermometer Mode

1.While in the Timekeeping Mode or in any of the sensor modes, press B to enter the Barometer/Thermometer Mode.

•BARO appears on the digital display to indicate that barometric pressure and temperature readings are being taken. The current barometric pressure or temperature appears on the digital display after readings are complete.

•When you press B, the second hand will first point in the direction of the B (BARO) button. This indicates the Barometer/Thermometer Mode. After that, the second hand will point at the current barometric pressure differential.

•Pressing E toggles the digital display between the barometric pressure and temperature screen.

•After you press B, the watch takes readings every five seconds for the first three minutes, and then every two minutes after that.

2.Press D to return to the Timekeeping Mode.

•The watch will return to the Timekeeping Mode automatically if you do not perform any operation for about one hour after entering the Barometer/Thermometer Mode.

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To take barometric pressure and temperature readings

While in the Timekeeping Mode or in any of the sensor modes, press B.

•The watch will start taking barometric pressure and temperature readings automatically.

•You also can take a barometric pressure and temperature reading at any time by pressing B in the Barometer/Thermometer Mode.

•Press E to toggle the digital display between the barometric pressure and temperature screen.

•It can take up to four or five seconds for the barometric pressure reading to appear after you enter the Barometer/Thermometer Mode.

Barometric Pressure

•Barometric pressure is displayed in units of 1 hPa (or 0.05 inHg).

•The displayed barometric pressure value changes to - - - if a measured barometric pressure falls outside the range of 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg). The barometric pressure value will reappear as soon as the measured barometric pressure is within the allowable range.

Temperature

•Temperature is displayed in units of 0.1°C (or 0.2°F).

•The displayed temperature value changes to - - - °C (or °F) if a measured temperature falls outside the range of –10.0°C to 60.0°C (14.0°F to 140.0°F). The temperature value will reappear as soon as the measured temperature is within the allowable range.

Display Units

You can select either hectopascals (hPa) or inchesHg (inHg) as the display unit for the measured barometric pressure, and Celsius (°C) or Fahrenheit (°F) as the display unit for the measured temperature value. See “To specify temperature, barometric pressure, and altitude units” (page E-60).

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Barometric Pressure Graph

Barometric

Barometric pressure indicates changes in the atmosphere. By monitoring

pressure graph

these changes you can predict the weather with reasonable accuracy.

 

This watch takes barometric pressure measurements automatically every

 

two hours (at the 30th minute of every even numbered hour).

 

Measurement results are used as the data to create the barometric

 

pressure graph that appears on the digital display, and the second hand

 

indicates the barometric pressure differential.

Reading the Barometric Pressure Graph

The barometric pressure graph shows readings of previous measurements for up to 16 hours.

Barometric

 

 

 

• The horizontal axis of the graph represents time, with each dot

 

 

 

standing for two hours. The rightmost dot represents the most recent

pressure

 

 

 

reading.

 

 

 

 

 

 

 

 

• The vertical axis of the graph represents barometric pressure, with

 

 

 

 

 

 

Time

each dot standing for the relative difference between its reading and

 

 

 

 

that of the dots next to it. Each dot represents 1 hPa.

The following shows how to interpret the data that appears on the barometric pressure graph.

A rising graph generally means improving weather.

A falling graph generally means deteriorating weather.

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Note

• If there are sudden changes in weather or temperature, the graph line of past measurements may run off the top or bottom of the display. The entire graph will become visible once barometric conditions stabilize.

•The following conditions cause the barometric pressure measurement to be skipped,

with the corresponding point on the barometric pressure graph being left blank.

Not visible on

the display.

– Barometric reading that is out of range (260 hPa to 1,100 hPa or 7.65 inHg to 32.45

 

inHg)

 

– Sensor malfunction

 

About the barometric pressure differential indicated by the second hand

Second hand In the Barometer/Thermometer Mode, the second hand indicates the difference between the value of the last barometric pressure reading displayed in the barometric pressure graph (page E-37) and the value of the last barometric pressure reading taken by the watch (which is shown on the digital display).

Barometer/Thermometer Mode Second Hand Units

The second hand indicates barometric

 

pressure differentials up to ±10hPa (in

 

1-hPa units).

0.3

• The nearby illustration, for example,

inHg values

shows what the second hand would

10

indicate when the calculated differential

hPa values

is approximately 5 hPa (approximately

 

0.15 inHg).

 

• The second hand will point to OVER or

 

UNDER if the barometric pressure

 

differential is outside the allowable

 

range of the scale.

 

• The second hand will move to 9 o’clock

 

if a sensor reading could not be taken

 

for some reason or if the reading is

−10

outside the allowable range.

• Barometric pressure is calculated and

−0.3

displayed using hPa as the standard.

 

The barometric pressure differential

 

also can be read in inHg units as shown

 

in the illustration (1 hPa = 0.03 inHg).

 

Current pressure greater than most

0.15recent measured

5pressure

Second hand

0 0

−5

Current pressure

−0.15

less than most

recent measured

 

pressure

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