Omron Pedometer Manual HJ-321

The Omron Pedometer HJ-321 is a precision step counter designed for accurate daily activity tracking. It features a dual-axis sensor for reliable step counting in various positions, large LCD display, 7-day memory, calorie and distance calculation, clock function, and automatic reset at midnight. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Use 4. Specifications 5. Controls and Display 6. Wearing Instructions 7. Daily Operation 8. Memory Functions 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Dual-axis sensor, LCD display, MODE button, SET button, RESET button, Battery compartment, Clip.

Feature	Description
Dual-axis sensor	Accurately counts steps in pocket, bag, or on waist
Large LCD display	Shows steps, distance, calories, time, and memory data
7-day memory	Stores daily step counts for one week
Calorie calculation	Estimates calories burned based on steps
Distance calculation	Calculates distance walked/run
Clock function	Displays current time (12/24 hour format)
Automatic reset	Resets step count at midnight automatically
Battery indicator	Shows battery status on display
Reset button	Manually resets step count for the day
Sturdy clip	Securely attaches to waistband or pocket

Installation & Setup

Unpack and inspect contents. Ensure all components are present.

Insert battery: Open battery compartment, insert CR2032 battery with correct polarity.
Set time: Press SET button to enter time setting mode, use MODE to adjust.
Set stride length: Measure your stride and enter in settings for accurate distance.
Set weight: Enter your weight for accurate calorie calculation.
Attach clip: Secure pedometer to waistband or place in pocket.

WARNING! Keep battery away from children. Do not disassemble device.

First-Time Use

After setup, begin tracking your activity.

Wear correctly: Attach to waistband or place in pocket vertically.
Reset step count: Press RESET button at start of day (automatic at midnight).
Check display: Press MODE button to cycle through step, distance, calorie, time displays.
Monitor progress: Review daily totals and 7-day memory as needed.

CAUTION! Ensure secure attachment to prevent loss during activity.

Specifications

Model: HJ-321
Sensor Type: Dual-axis piezoelectric sensor
Measurement: Steps, distance (miles/km), calories (kcal)
Memory: 7-day step count memory
Display: LCD with backlight (on some models)
Battery: CR2032 lithium battery (approx. 1-year life)
Operating Temp: 14°F to 122°F (-10°C to 50°C)
Dimensions: 2.4" x 1.7" x 0.6" (61mm x 43mm x 15mm)
Weight: 0.8 oz (23g) including battery
Accuracy: ±5% under normal walking conditions

Controls and Display

Access functions via MODE, SET, and RESET buttons. Display shows: Step count, Distance, Calories burned, Time, Memory data, Battery indicator.

Button Functions: MODE - Cycles through display modes; SET - Enters setting mode; RESET - Resets daily step count.

Settings: Time (12/24 hour), Stride length (entered in cm/inches), Weight (for calorie calculation), Unit preference (miles/km). Display modes: Step count, Distance walked, Calories burned, Clock, Memory recall.

Wearing Instructions

For accurate step counting, wear pedometer correctly.

Waistband: Clip securely to center of waistband, aligned vertically.
Pocket: Place vertically in pocket, ensuring it remains upright during movement.
Bag: Can be placed in bag or purse, but may be less accurate.
Avoid: Loose attachment or horizontal positioning.

Tip: Test accuracy by counting 100 steps and comparing to pedometer reading.

Daily Operation

Daily use for activity tracking.

Morning: Check time; reset if needed (automatic at midnight).
Wear: Attach pedometer at start of day.
Monitor: Press MODE to view steps, distance, calories throughout day.
Evening: Review daily totals before midnight reset.
Memory: Press MODE in memory mode to review past 7 days.

WARNING! Do not expose to extreme temperatures or moisture.

Memory Functions

7-day memory stores daily step counts.

View memory: Press MODE until memory icon appears, shows day 1 (today) to day 7.
Auto storage: Daily totals automatically saved at midnight.
Memory clear: Oldest day automatically overwritten after 7 days.
Manual recording: Note totals if needed beyond 7 days.

Note: Memory is not retained if battery is removed.

Care & Maintenance

Clean with dry cloth only. Store in cool, dry place.

Battery: Replace when indicator shows low (approx. every 12 months).
Cleaning: Wipe with soft, dry cloth; no liquids or chemicals.
Storage: Remove from clothing when not in use; store at room temperature.
Avoid: Dropping, crushing, or exposing to water.

CAUTION! Do not attempt to repair; contact Omron for service.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE marked for European compliance. Manufactured by Omron Healthcare Co., Ltd. For support, visit www.omronhealthcare.com or contact 1-800-634-4350.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Dead battery	Replace CR2032 battery.
Inaccurate step count	Incorrect wearing position	Attach vertically to waistband; ensure secure.
Display dim	Low battery	Replace battery.
Buttons not responding	Battery issue	Remove and reinsert battery; replace if needed.
Memory not showing	Battery removed	Memory clears when battery removed; reset settings.
Time incorrect	Settings lost	Reset time using SET button.

Reset: Remove battery for 30 seconds to reset all settings.

Service: 1-800-634-4350; www.omronhealthcare.com