Fine Offset Electronics WS110 User manual

DIGITAL COMPASS WITH ALTIMETER
Instruction Manual
1. Introduction
1.1 Features:
Altimeter (m, feet)
Digital compass
Barometric pressure (hPa, inHg, mmHg)
Temperature (℃or ℉)
256 set of altitude and barometric pressure data history
Forecast icons based on changing barometric pressure
12/24 clock format
Perpetual calendar
Time and date by manual setting
LED backlight
Lanyard included for easy carrying
1.2 Button function
If key idle 30minutes and pressure change within 0.4hpa, LCD off. Press any button again to
resume nomal LCD display.
1.2.1 The “ALTITUDE/+” button
- While in setting mode, press “ALTITUDE/+” button to increase the value
- While in normal display, press “ALTITUDE/+” button to shift the display of barometer and
absolute/relative altitude.
- While in absolute altitude display mode, hold the “ALTITUDE/+” button for 2s, the absolute
altitude will be reset to relative altitude and the initial value is zero. Hold the “ALTITUDE/+”
button for 2s, the relative altitude will be reset to absolute altitude again. Relative altitude
mode is useful when accumulated altitude reading is desired.
1.2.2 The “COMPASS/-” button
- While in setting mode, press “COMPASS/-” button to decrease the value
- While in normal display, press “COMPASS/-” button to enter compass mode
-While in compass mode, press “COMPASS/-” to shift the display of the bearing direction in
compass points and in digital.
- Hold the “COMPASS” button for 2s to enter Calibration mode.
1.2.3 The “SET” button
-While in normal display, press “SET” button to shift the display of time and date
- While in normal display, hold the “SET” button for 6s to enter energy saving mode: LCD off,
but real time clock is still running. Press any button again to resume normal LCD display mode.
- While in normal display, hold the “SET” button for 2s to enter setting mode
1.2.4 The “HISTORY” button
- While in normal display, press “HISTORY” button to display the history data of barometer or
altitude with the time and date at which these data were recorded, press “ALTITUDE/+” to
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to make a proper reset.
no
Wait 10 seconds before re-insert the battery again
scroll up the history record, press “COMPASS/-” to scroll down the history record. Press
“HISTORY” button again to exit the history mode and return the normal display. While in
history mode, “HIS” will be displayed on the temperature reading area(4), the history data
sets number will be displayed at the center of compass.
- While in normal display, press “HISTORY” button for 2s to enter store data interval setting.
Press “ALTITUDE/+” button to increase the value. Press “COMPASS/-” button to decrease
the value. Press ”HISTORY” button to confirm the setting and exit
- The program mode can be exited at any time by pressing ‘HISTORY” button.
1.3 LCD display
The following illustration shows the full segment of the LCD for description purpose only and
will not appear like this during normal operation.
1. Time / Date
2. Weather forecast icon
3. Temperature display unit (℃or
℉)
4. Temperature
5. Digital compass
6. Weather tendency arrow
7. Barometer / Altitude
8. Pressure unit (relative or
absolute)
9. Altitude display unit (m or feet)
10. Barometer display unit (hPa,
inHg, mmHg)
1.4 Insert battery
When the unit is powered up, all LCD segments
will light up for about 3 seconds
Caution:
DoDo not
reverse
polarity
of the
batteries
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2. Altitude Mode
2.1 Absolute altitude
As the absolute altitude is calculated from the air pressure the change of air pressure would
affect the altitude reading. To achieve a more accurate reading, it needs to be calibrated as
pressure may change gradually.
Important note: In order to set the correct absolute altitude reading, the altitude must be known.
That information can be found by utilizing a topographical map identifying the current location
with the associated altitude marked. The user can then proceed and follow the instructions to
calibrate the absolute altitude.
To calibrate the absolute altitude
In absolute altitude display mode, hold the “SET” button for 2s to enter setting mode, press
“SET” button to select the absolute altitude setting. While the digits are selected (flashing),
press the “ALTITUDE” button to increase the digit amount. Press “COMPASS” button to
decrease the digit amount.
2.2 Relative altitude
Relative altitude can be set whenever required over the whole measurement range.
To set the relative altitude to zero
While in absolute altitude display mode, hold the “ALTITUDE/+” button for 2s, the absolute
altitude will be reset to relative altitude and the initial value is zero.
3.SET Mode
- Hold the “SET” button for 2s while in normal display to enter setting mode
-Press “ SET” button to select the following setting in sequence:
12/24 hour format
Manual time setting (hours/minutes)
Calendar setting (year/month/date
Temperature display unit degree Celsius or Fahrenheit
Pressure display unit in hPa or mmHg or inHg
Altimeter display unit in m or feet
Absolute altitude calibrate
In the above setting modes, press “ALTITUDE” button or “COMPASS” button to change or
scrolls the value. Hold the “ALTITUDE” button or “COMPASS” button for 3 second will
increase/decrease digits in great steps. Press the “SET” button to accept the change and
advance to the next setting mode. Continue to press the “SET” button to toggle through the
setting mode until return to the normal Mode
4. COMPASS Mode
4.1 Precautions when using the Compass
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Keep your digital compass away from magnets or appliances which may contain
magnetic objects, such as: mobile phones, speakers, motors, etc.
This compass like most magnetic compasses, points to the magnetic North, which is
slightly difference from the true North. Check section ‘3.2 Magnetic Declination’ for more
information.
To achieve a accurate result, you should avoid measuring a direction on the following
conditions:
The compass is too close to magnetic objects
The compass is too close to metal objects
The compass is too close to an electrical appliance.
The compass is inside a moving object or a concrete building
4.2 Magnetic Declination
What is Magnetic Declination
- The Magnetic North Pole is slightly difference from the True North Pole. Most magnetic
compasses, point to the Magnetic North Pole. On the contrary, everything measured
from a map is related to the True North Pole.
- The angular difference between Magnetic North Pole and True North Pole is called magnetic
declination. Its amount (degrees and minutes) and direction (easterly and westerly) depend
on where you are.
- For serious compass user or users who intends to
perform accurate navigation, the compass must be
adjusted to compensate for magnetic declination.
Magnetic Declination Information
- Most topographic maps show magnetic north pole
and or the magnetic declination information.
- The manual includes the magnetic declination for
some major cities. Check the ‘Magnetic Declination
at Major Cities’ section for more detail.
- For those cities whose names are not included in
the list, you may like to refer to the online magnetic
declination information.
4.3 Magnetic Declination Compensation
- compensate an object’s bearing by subtract westerly (W) magnetic declination or add
easterly (E) magnetic declination with the magnetic bearing.
Example
- 26° Westerly magnetic declination and the compass needle points 326° (MB).
- The true bearing will be 326°(MB)-26°(W) = 300°
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WS110 will compensate the compass bearing wherever the magnetic declination is either
westerly declination or Easterly declination automatically, if the user inputs the magnetic
declination angle of the city which is close to the user’s current location during the calibration.
Check the 4.5 Calibrating the compass section for more details on the calibration.
4.4 Magnetic Declination at Major Cities
No.
Country/Place
Major City Declinatio
n
No.
Country/Place
Major City Declinati
on
1 Afghanistan Kabul 2-E 33 Netherlands Amsterdam 1-W
2 Australia Canberra 12-E 34New Zealand Wellington 22-E
3 Austria Vienna 2-E 35Norway Oslo 0
4 Bahrain Manama 2-E 36Pakistan Islamabad 2-E
5 Bangladesh Dhaka 0 37Philippines Manila 1-W
6 Belgium Brussels 1-W 38Portugal Lisbon 5-W
7 Brazil Brasilia 19-W 39Russia Moscow 9-E
8 Canada Ottawa 14-W 40Singapore Singapore 0
9 Chile Santiago 5-E 41South Africa Cape Town 23-W
10China Beijing 6-W 42Spain Madrid 3-W
11China Hong Kong 2-W 43Sweden Stockholm 3-E
12Costa Rica San Jose 0 44Switzerland Bern 0
13Cuba Havana 3-W 45Taiwan Tai-pei 3-W
14Czech
Republic
Prague 2-E 46Thailand Bangkok 0
15denmark Copenhagen 1-E 47UAE Abu Dhabi 1-E
16Egypt Cairo 3-E 48United
Kingdom
London 3-W
17Finland Helsinki 6-E 49United States Washington,
DC
10-W
18France Paris 1-W 50 Juneau 25-E
19Germany Berlin 1-E 51 Phoenix 12-E
20Greece Athens 3-E 52 Little Rock 2-E
21Hungary Budapest 4-E 53 Sacramento 16-E
22India New Delhi 1-E 54 Denver 10-E
23Indonesia Jakarta 1-E 55 Atlanta 4-W
24Isreal Jerusalem 3-E 56 Honolulu 10-E
25Italy Rome 1-E 57 Boston 16-W
26Japan Tokyo 7-W 58 Saint Paul 2-E
27Jordan Amman 3-E 59 Jackson 1-E
28Kenya Nairobi 1-E 60 Santa Fe 10-E
29Korea Seoul 7-W 61 Oklahoma City 6-E
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30Malaysia Kuala
Lumpur
1-E 62 Salem 18-E
31Mexico Mexico City 6-E 63 Harrisburg 11-E
32Nepal Katmandu 0 64 Slat Lake City 14-E
4.5 Calibrating the compass
- Press “COMPASS/-” button to enter compass mode. In compass mode, press “COMPASS/-”
to shift the display of the bearing in cardinal indication and bearing in degrees.
- Perform the compass calibration in the following conditions:
North
indicator Cardinal
indicator
North
indicator
Bearing in
degrees
1) When the compass is used the first time
2) The battery has been replaced,
3) When using the compass in a location different from the place in which the compass had
been calibrated.
4.5.1 Rotation Calibration Mode
1) Hold the “COMPASS” button until “CAL” is shown on the display, which indicates the
calibration screen.
2) Hold the compass a flat surface which is parallel to the horizon, then rotate the compass
clockwise for 1 turns. The rotation should be completed in a slow and steady practice.
3) When the turning is completed, press “COMPASS” button to return to Compass Mode and
start taking measurement.
4.5.2 Magnetic Declination Mode
Check section “3.4 Magnetic Declination at Major Cities” to get the magnetic declination of the
city nearest to your current position. Input this angle into the compass during the calibration
1) Press the “COMPASS” button to enter compass mode.
2) Press the “SET” button, the “DEC” indicator is shown on the display. The digit will start
flashing.
3) Press “ALTITUDE” button or “COMPASS” button to increase or decrease the angle (from
-90 to 90), until the desire magnetic declination has appeared.
Example 1:
Compensate the magnetic declination for Wellington in New Zealand (22-E), select +22 in the
magnetic declination setting.
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Example 2:
Compensate the magnetic declination for Lisbon in Portugal (5-W), select -5 in the magnetic
declination setting:
Note: 1. The compass must be kept in a level position when in use.
2. Compass readings are easily affected by disturbing sources of magnetism, so the
compass should always be used in the open air.
5. HISTORY Mode
To set the history record interval time
1) Press “HISTORY” button until “HIS” is shown on the display and the history record interval
time is flashing which indicates entering the history record interval time setting. Press
“ALTITUDE/+” button to increase the value. Press “COMPASS/-” button to decrease the value.
Press “HISTORY” button to confirm the setting and exit
2) History record interval time range: 1min ~ 60min (default 5min)
How to view the history record
1) While in normal display, press “HISTORY” button to display the history record of
barometer or altitude (You can choose the barometer or altitude display by pressing
“ALTITUDE” button while in normal display), press “ALTITUDE/+” to scroll up the history
record, press “COMPASS/-” to scroll down the history record. The record serial number
History
record
interval time
The record
serial
number
History
record
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00410 V01
will display automatic. The smaller the number corresponding to earlier time. This digits
display is helpful when more than one day history data has been recorded.
2) Press “SET” button to shift the display of time and date of record.
3) Press “HISTORY” button again to exit the history mode and return the normal display.
4) Max. 256 set of altitude and barometric pressure data history
Note: The history record is circular and the new record will cover the oldest record when the
record over 256set. The record cannot be cleared by the user.
6. Weather forecast
Sunny Partly Cloudy Cloudy Rainy
The four weather icons Sunny, partly Cloudy, Cloudy and Rainy represent the weather
forecasting. The weather forecast is based upon the change of pressure.
7. Special Features
1) A specially designed algorithm has been deployed in the firmware to filter out the influence
of pressure change when you are climbing a mountain. This feature avoids wrong weather
forecast while in motion. Vice versa, normal pressure change happened when you are not
moving will not affect relative altitude reading.
2)The device will increase pressure measurement frequency when the device sensed
more than 0.5hpa pressure change. While the device is stationary, the time interval of
pressure measurement will be adjusted to 60s to extend the battery life.
8.Specification
Compass range : 0° to 359°
1 to 16 pointers (graphical)
Anger accuracy : +/-8°
Height range : -500m to 8000m
Relative Height accuracy : +/-3.0m
Absolute Height accuracy : +/-12m
Temperature range : -20℃to +60℃(-4℉to +140℉)
Temperature accuracy : +/-1.0℃
Measuring temperature interval l : 60 sec during normal weather mode
3 sec during altitude sensing mode
Pressure resolution : 0.1 hPa (0.1mmHg, 0.01inHg)
Absolute Pressure accuracy : +/-1.5hPa
Power consumption
Single 3V lithium battery (CR2032)
Battery life: Minimum 12 months at energy saving mode (LCD off)
Minimum 6 months at normal display mode
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