Casio 5114, 5214 Taking Barometric Pressure and Temperature Readings, Using the Compass While Mountain Climbing or Hiking, Barometric Pressure Graph

Operation Guide 5114 5214

4.Press C to start the calibration operation.

•- - - is shown on the digital display while calibration is being performed. When calibration is successful, the digital display will show OK and then change to the Compass Mode screen (- - -).

Using the Compass While Mountain Climbing or Hiking

This section provides two practical applications for using the watch’s built-in compass.

•Setting a map and ﬁnding your current location

Having an idea of your current location is important when mountain climbing or hiking. To do this, you need to “set the map”, which means to align the map so the directions indicated on it are aligned with the actual directions of your location. Basically what you are doing is aligning north on the map with north as indicated by the watch.

•Finding the bearing to an objective

To set a map and ﬁnd your current location

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

2.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.

North indicated on the map

	Current
N	location

North indicated by second hand

3.Rotate the map without moving the watch so the northerly direction 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-36).

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

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

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To ﬁnd the bearing to an objective

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Compass Precautions

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-40 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.

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 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

North indicated by second hand

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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.

•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-38).

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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.

Barometric pressure differential indicated by second hand

Barometric Barometric

pressure pressure graph

Temperature

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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.

• 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-69).

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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.

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	the display.

	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-46) and the value of the last barometric pressure reading taken by the watch (which is shown on the digital display).

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