Ultrak 490L

ULTRAK 490L LED Backlight 100 Dual Split Memory Stopwatch User Manual

Model: 490L | Brand: Ultrak

Introduction

This manual provides comprehensive instructions for the operation and maintenance of your Ultrak 490L Stopwatch. Designed for precision timing, this device features an LED backlight, 100 dual split recallable memory, and a large 3-row display, making it suitable for various timing needs. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your stopwatch.

Key Features

  • LED Backlight for visibility in low-light conditions.
  • 100 Dual Split Recallable Memory for tracking multiple splits and laps.
  • Large 3-Row Display for clear and simultaneous viewing of split, lap, and total times.
  • Measures up to 10 hours, accommodating long events.
  • Stroke/Frequency Mode for specialized timing applications.
  • Time and Calendar Display for everyday utility.
  • Water Resistant construction for durability in various environments.

Setup

The Ultrak 490L Stopwatch comes ready for use with a pre-installed lithium battery. No initial setup is typically required beyond familiarizing yourself with the buttons and modes.

Initial Inspection

Upon receiving your stopwatch, inspect it for any visible damage. Ensure all buttons are responsive and the display is clear. If any issues are found, refer to the Troubleshooting section or contact customer support.

Ultrak 490L Stopwatch front view with LED backlight display showing 0:00'00''00

Figure 1: Front view of the Ultrak 490L Stopwatch. This image displays the stopwatch's main screen with its three rows, indicating split, lap, and total time, all set to zero. The buttons for LAP/SPLIT/RESET, RECALL, START/STOP, and MODE/LIGHT are visible around the display. The "ULTRAK 490L" branding and "WATER RESISTANT" text are also clearly shown at the bottom.

Operating Instructions

1. Basic Stopwatch Function (Start, Stop, Reset)

  1. Start Timing: Press the START/STOP button (top right) to begin timing.
  2. Stop Timing: Press the START/STOP button again to pause the timer.
  3. Resume Timing: Press the START/STOP button to continue from where it was paused.
  4. Reset Timer: While the timer is stopped, press the LAP/SPLIT/RESET button (top left) to reset the display to 0:00'00''00.

2. Lap/Split Timing

The stopwatch can record up to 100 dual split times, displaying both lap and split times simultaneously.

  1. Start: Press START/STOP to begin.
  2. Record Split/Lap: Press LAP/SPLIT/RESET to record a split time. The display will momentarily show the split time, while the main timer continues running in the background. The bottom row will show the current lap time.
  3. Continue: The stopwatch will automatically return to displaying the running total time after a few seconds, or you can press LAP/SPLIT/RESET again to immediately update the display to the next split.
  4. Stop: Press START/STOP to end the timing session.
Ultrak 490L Stopwatch showing buttons and display

Figure 2: Close-up view of the Ultrak 490L Stopwatch, highlighting the buttons and the multi-row display. This image helps identify the 'LAP/SPLIT/RESET' button on the top left, 'RECALL' on the top center, 'START/STOP' on the top right, and 'MODE/LIGHT' on the bottom right. The display shows numerical values, indicating it is in an active timing or memory recall state.

3. Memory Recall

The stopwatch can store up to 100 split/lap times. These can be recalled even during an ongoing timing session.

  1. Enter Recall Mode: Press the RECALL button (top center).
  2. Navigate Memory: Use the LAP/SPLIT/RESET button to scroll forward through recorded splits/laps.
  3. Exit Recall Mode: Press the RECALL button again to return to the current timing display or time mode.

4. Time and Calendar Mode

To view the current time and date:

  1. Switch Mode: Press the MODE/LIGHT button (bottom right) to cycle through different modes until the time and calendar are displayed.
  2. Setting Time/Date: In Time mode, press and hold the MODE/LIGHT button until the digits flash. Use LAP/SPLIT/RESET to adjust values and START/STOP to move to the next setting. Press MODE/LIGHT to confirm and exit.

5. Stroke/Frequency Mode

This mode is used to measure strokes per minute or frequency.

  1. Enter Stroke Mode: Press the MODE/LIGHT button until "STROKE" or "FREQ" appears on the display.
  2. Start Measurement: Press START/STOP.
  3. Count Strokes: Press START/STOP for each stroke or cycle. The stopwatch will calculate and display the average stroke/frequency.
  4. Stop Measurement: Press START/STOP to stop counting.
  5. Reset: Press LAP/SPLIT/RESET to clear the measurement.

6. LED Backlight

To activate the LED backlight for improved visibility:

  • Press and hold the MODE/LIGHT button for approximately 2 seconds. The backlight will illuminate for a short period.

Maintenance

  • Cleaning: Wipe the stopwatch with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
  • Water Resistance: The Ultrak 490L is water resistant. This means it can withstand splashes and brief immersion. However, it is not designed for prolonged underwater use or diving. Avoid pressing buttons while submerged to prevent water ingress.
  • Battery Replacement: The stopwatch uses a lithium battery. When the display becomes dim or unresponsive, the battery may need replacement. This should ideally be performed by a qualified technician to maintain water resistance.
  • Storage: Store the stopwatch in a cool, dry place away from direct sunlight and extreme temperatures.

Troubleshooting

ProblemPossible CauseSolution
Display is dim or blank.Low battery.Replace the lithium battery.
Buttons are unresponsive.Temporary software glitch or low battery.Try resetting the stopwatch (if possible, by removing and reinserting the battery, or pressing a recessed reset button if available). If not, replace the battery.
Water ingress after exposure.Buttons pressed while submerged or seal compromised.Discontinue use. Allow to dry completely. If issues persist, contact customer support. Avoid pressing buttons underwater.
Incorrect time/date displayed.Time/date not set correctly.Refer to "Time and Calendar Mode" instructions to set the correct time and date.

Specifications

  • Model: 490L
  • Brand: Ultrak
  • Dimensions (LxWxH): 0.75 x 2.5 x 3.25 inches
  • Color: Black
  • Material: Plastic and rubber
  • Memory: 100 Dual Split Recallable Memory
  • Display: Large 3-Row Display with LED Backlight
  • Timing Capacity: Up to 10 hours
  • Functions: Stopwatch, Lap/Split Timing, Memory Recall, Time/Calendar, Stroke/Frequency
  • Water Resistance: Yes
  • Battery: Lithium (type not specified, typically CR2032 or similar)
  • Manufacturer: CEI-Ultrak

Warranty and Support

For specific warranty information, please refer to the documentation included with your purchase or visit the official Ultrak website. If you encounter any issues not covered in this manual or require further assistance, please contact Ultrak customer support.

Manufacturer: CEI-Ultrak

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