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1. SPECIFICATIONS: QW-1664
CONTENTS
1. SPECIFICATIONS: QW-1664 ........................................................................ 1
2. OPERATION CHART: QW-1664 ................................................................... 2
3. DRAWINGS
3-1. BLOCK DIAGRAMS: QW-1664 ........................................................................
9
3-2. CHECKING TERMINALS AND COMPONENTS: QW-1664 ..........................
10
3-3. A1 ~ A4 PADS .................................................................................................
10
4. EXPLODED VIEW: QW-1664 ...................................................................... 11
5. PARTS LIST: QW-1664 ............................................................................... 12
6. PRECAUTIONS FOR REPAIR: QW-1664
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE ........................................
13
6-2. ACCURACY CHECKING ................................................................................
13
Item
Detail
Battery
CR2016
Battery life
Approx. 1.5 years
Current consumption
2.78
µ
A maximum
Alarm system
Piezo plate on Cover/Back
Accuracy
±
15 sec./month
Accuracy setting system Capacitor/Chip
Accuracy checking
See page 13
Accuracy setting
+0.25 ~ +0.35 sec./day
Functions
• Electro-luminescent backlight
• Auto light switch
• Low-temperature resistance (–20
°
C)
• Altimeter
Measuring range: 0 m to 6,000 m
Measuring unit: 5 m
Auto/Manual memory measurements (up to 50 sets of data, each set
including altitude, temperature, month, data, time)
Reference altitude setting
Altitude alarm
Altitude tendency graph
• Barometer
Display range: 460 hPa/mb to 1,100 hPa/mb
Display unit: 1 hPa/mb
Tendency graph of atmospheric pressure
• Thermometer
Display range: –20
°
C to 60
°
C
Display unit: 0.1
°
C
• 1/100 sec. stopwatch
Measuring capacity: 23:59'59.99"
Measuring mode: Elapsed time, split time, 1st-2nd place times
• Daily alarm
• Hourly time signals
• Regular time keeping: Hr, min, sec, am/pm, year, month, date, day
• Auto-calendar (pre-programmed to the year 2039)
• 12/24-hour formats