Casio 2872 Changing the Barometric Pressure and Temperature Units, Calibrating the Barometric Pressure Sensor, Calibrating the Temperature Sensor

Operation Guide 2872

•xxx is shown on the display while calibration is being performed. When calibration is complete, the Digital Compass Mode screen (showing the angle value) appears.

•If xxx appears and then changes to Err (error) on the calibration screen, it means that there is something wrong with the sensor. Err will disappear after about one second. Press A to return to the Digital Compass Mode screen, and then try performing the calibration operation again. If Err keeps appearing, contact your original dealer or nearest authorized CASIO distributor to have the watch checked.

To perform northerly calibration

l	l	l		1. While in the Digital Compass Mode, hold
ll			l	down A until x1x appears on the display,
			l
l	l		l	which indicates the setting screen.

2. Press C to start the northerly calibration procedure.

• At this time, -N-(north) appears on the display.

3. Place the watch on a level surface, and position it so that its 12 o’clock position points north (as measured with another compass).

4. Press B to start the calibration operation.

•xxx is shown on the display while calibration is being performed. When calibration is complete, the Digital Compass Mode screen (with 0° indicated as the angle value) appears.

Changing the Barometric Pressure and Temperature Units

Changing the barometric pressure units automatically restarts display of the barometric pressure indicators.

To change the barometric pressure and temperature units

Calibrating the Barometric Pressure Sensor

The pressure sensor of this watch is calibrated at the factory before shipment and further adjustment is normally not required. If you notice serious errors in the barometric pressure readings produced by the watch, you can calibrate the sensor to correct the errors.

Important!

Incorrectly calibrating the barometric pressure sensor can result in incorrect readings. Before performing the calibration procedure, compare the readings produced by the watch with those of another reliable and accurate barometer.

To calibrate the pressure sensor

1. Press E to enter the Barometer/

Thermometer Mode.

2. Hold down A until OFF appears or until the

l l l

display goes blank. This is the setting screen.

• If the display goes blank, it means there is

calibration value. Release A. Wait for four

or five seconds and the value will appear.

3. Press C to move the flashing to the

barometric pressure calibration status in the

center of the display.

• At this time, OFF or the barometric

pressure value should be flashing on the

l l l

display.

4. Press D (+) or B (–) to change the displayed

barometric pressure by 1 hPa (0.05 inHg).

• Pressing B and D at the same time

l l

returns to the factory calibration (OFF). 5. Press A to return to the Barometer/

Thermometer Mode screen.

To change the altitude unit

1. Press D to enter the Altimeter Mode.

2. Hold down A until OFF (flashing) appears or until the display goes blank. This is the setting screen.

• If the display goes blank, it means there is a reference altitude value. Release A and wait for four or five seconds until the value appears.

3. Press C to move the flashing to the altitude

l	l l l	l
l		l
l		l
l	l l l	l
	l l l

Temperature

Sensor

Calibration

1.Press E to enter the Barometer/ Thermometer Mode.

2.Hold down A until OFF appears or until the display goes blank. This is the setting screen.

•If the display goes blank, it means there is calibration value. Release A. Wait for four or five seconds and the value will appear.

3.Press C to move the flashing in the sequence shown below.

Pressure

Sensor°C / °FhPa/inHg

Calibration

unit setting.

4. Use D to select the unit you want (m or ft).

5. Press A to return to the Altimeter Mode screen.

l	l	•	Performing the above procedure causes
ll l l

l	l l	l	altitude values stored in memory also to be
	l l		altitude values stored in memory also to be
			converted to the unit you select.

4.Use C to move the flashing to the unit setting you want to change (°C/°F or hPa/inHg).

5.Press D to select the unit you want.

6.Press A to return to the Barometer/Thermometer Mode screen.

Calibrating the Temperature Sensor

The temperature sensor of this watch is calibrated at the factory before shipment, and further adjustment is normally not required. If you notice serious errors in the temperature readings produced by the watch, you can calibrate the sensor to correct the errors.

Important!

Incorrectly calibrating the temperature sensor can result in incorrect readings.

Carefully read the following before doing anything.

•Compare the readings produced by the watch with those of another reliable and accurate thermometer.

•If adjustment is required, remove the watch from your wrist and wait for 20 or 30 minutes to give the temperature of the watch time to stabilize.

To calibrate the temperature sensor

			1.		Press E to enter the Barometer/
					Thermometer Mode.
		l l l	2.		Hold down A until OFF appears or until the
	l	l l l	l		display goes blank. This is the setting screen.
	l		l
l				l
	l			l
		l l l			• If the display goes blank, it means there is
					calibration value. Release A. Wait for four
					or five seconds and the value will appear.
					or five seconds and the value will appear.
			3.		Press D (+) or B (–) to change the displayed
					temperature by 0.1°C (or 0.2°F).
					• Pressing B and D at the same time
					returns to the factory calibration (OFF).
			4.		Press A to return to the Barometer/
					Thermometer Mode screen.