Indledning
This manual provides detailed instructions for the operation and maintenance of your Casio Pro Trek PRG-550-1A1 Tough Solar watch. Please read this manual carefully to ensure proper use and to fully utilize its advanced features, including digital compass, altimeter, barometer, and thermometer functions.
1. Indledende opsætning
1.1 Opladning af uret (Tough Solar)
Your watch is equipped with a solar charging system. Before initial use, expose the watch face to bright light for several hours to ensure it is sufficiently charged. Avoid covering the watch face during charging. A low battery indicator may appear if the charge is insufficient.

Billede 1: Forside view of the Casio Pro Trek PRG-550-1A1 watch, showing the solar panel on the dial.
1.2 Setting the Home City and Time
- I tidsvisningstilstand skal du holde nede TILPASSE knappen, indtil bykoden begynder at blinke.
- Brug MODE og LYS buttons to select your desired Home City code.
- Trykke TILPASSE to confirm the city.
- Brug MODE button to cycle through other settings like DST (Daylight Saving Time), 12/24-hour format, seconds, hour, minute, year, month, and day. Adjust each setting using the LYS og MODE knapper.
- Trykke TILPASSE for at forlade indstillingstilstanden.
2. Driftstilstande
The watch features multiple modes accessible via the MODE button and dedicated sensor buttons.
2.1 Tidtagningstilstand
This is the default mode, displaying the current time, day, and date. The analog hands show the current time, while the digital display can show various information depending on settings.
2.2 Digital Compass Mode (COMP Knap)
Tryk på COMP button to enter Compass Mode. The watch will display the current bearing (north, south, east, west) and a graphic representation of the direction. For accurate readings, ensure the watch is held level and away from strong magnetic fields.

Billede 2: Nærbillede view highlighting the digital display and sensor buttons.
2.3 Barometer/Thermometer Mode (BARO Knap)
Tryk på BARO button to display atmospheric pressure and temperature. Temperature readings are most accurate when the watch is removed from the wrist for at least 20-30 minutes to avoid body heat interference.
2.4 Altimeter Mode (ALTI Knap)
Tryk på ALTI button to measure altitude. The altimeter uses a pressure sensor, so readings can be affected by changes in atmospheric pressure due to weather. For best accuracy, calibrate the altimeter frequently using a known altitude reference.
2.5 Other Modes (via MODE Knap)
- Verdenstid: Displays the current time in various major cities around the world.
- Stopur: Measures elapsed time, split times, and two finishes.
- Timer: A countdown timer function.
- Alarm: Indstil daglige alarmer.
3. Vedligeholdelse
3.1 Opladning
To maintain optimal performance, ensure the watch is regularly exposed to light for charging. Prolonged storage in darkness can deplete the battery and affect functionality. Refer to the power indicator on the digital display to monitor charge level.
3.2 Vandtæthed
The PRG-550-1A1 is water resistant to 10 ATM (100 meters). This means it is suitable for swimming and snorkeling. Do not operate buttons while the watch is submerged in water. Avoid exposing the watch to hot water or steam, as this can compromise the seals.
3.3 Rengøring
Tør uret af med en blød, tør klud. Brug en blød klud til genstridigt snavs.ampSkyl med vand og et mildt neutralt rengøringsmiddel, og tør derefter af. Undgå at bruge flygtige stoffer som fortynder eller benzin, da de kan beskadige harpikskomponenterne.

Billede 3: Bagside view of the watch, displaying the "WR10BAR" water resistance marking.
4. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Watch is not charging or display is blank. | Utilstrækkelig lyseksponering. | Expose the watch face to bright light for an extended period. Ensure the solar panel is not obstructed. |
| Tidspunktet er forkert. | Incorrect Home City setting or manual time adjustment error. | Re-set your Home City and manually adjust the time as described in Section 1.2. |
| Sensor readings (compass, altimeter, barometer) are inaccurate. | Interference from magnetic fields, rapid weather changes, or need for calibration. | Move away from electronic devices or metal objects. Calibrate the sensor according to the specific mode's instructions. For altimeter, calibrate with a known altitude. |
| Knapperne reagerer ikke. | Watch may be in a locked state or battery is extremely low. | Ensure the watch is adequately charged. If submerged, do not press buttons. If problem persists, perform a full reset (refer to Casio support for specific reset procedures). |
5. Specifikationer
- Model: Casio Pro Trek PRG-550-1A1
- Strømkilde: Tough Solar (soldrevet)
- Vandtæthed: 10 ATM (100 meter)
- Sensorer:
- Digital Compass (Azimuth measurement)
- Barometer (Atmospheric pressure measurement)
- Altimeter (Altitude measurement)
- Thermometer (Temperature measurement)
- Tidtagning: Analog and Digital display
- Yderligere funktioner: World Time, Stopwatch, Countdown Timer, 5 Daily Alarms, Hourly Time Signal, Battery Level Indicator, Full Auto LED Light with Afterglow.
6. Garanti og support
For warranty information, please refer to the warranty card included with your purchase. In case of issues not covered by this manual, or for service and repair, please contact your authorized Casio dealer or visit the official Casio support webwebsted. Gem din købsbevis til garantikrav.
Officiel Casio Webwebsted: www.casio.com





