MFJ MFJ-185 User manual

12 MONTH LIMITED WARRANTY
MFJ Enterprises, Inc. warrants to the original owner of this product, if manufactured by MFJ
Enterprises, Inc. and purchased from an authorized dealer or directly from MFJ Enterprises,
Inc. to be free from defects in material and workmanship for a period of 12 months from date
of purchase provided the following terms of this warranty are satisfied.
1. The purchaser must retain the dated proof-of-purchase (bill of sale, canceled check, credit
card or money order receipt, etc.) describing the product to establish the validity of the
warranty claim and submit the original or machine reproduction of such proof-of-purchase to
MFJ Enterprises, Inc. at the time of warranty service. MFJ Enterprises, Inc. shall have the
discretion to deny warranty without dated proof-of-purchase. Any evidence of alteration,
erasure, or forgery shall be cause to void any and all warranty terms immediately.
2. MFJ Enterprises, Inc. agrees to repair or replace at MFJ’s option without charge to the
original owner any defective product under warranty, provided the product is returned postage
prepaid to MFJ Enterprises, Inc. with a personal check, cashiers check, or money order for
$7.00 covering postage and handling.
3. MFJ Enterprises, Inc. will supply replacement parts free of charge for any MFJ product under
warranty upon request. A dated proof-of-purchase and a $5.00 personal check, cashiers
check, or money order must be provided to cover postage and handling.
4. This warranty is NOTvoid for owners who attempt to repair defective units. Technical
consultation is available by calling [phone].
5. This warranty does not apply to kits sold by or manufactured by MFJ Enterprises, Inc.
6. Wired and tested PC board products are covered by this warranty provided only the wired
and tested PC board product is returned. Wired and tested PC boards installed in the
owner’s cabinet or connected to switches, jacks, or cables, etc. sent to MFJ Enterprises, Inc.
will be returned at the owner’s expense unrepaired.
7. Under no circumstances is MFJ Enterprises, Inc. liable for consequential damages to person or
property by the use of any MFJ products.
8. Out-of-warranty Service: MFJ Enterprises, Inc. will repair any out-of-warranty product
provided the unit is shipped prepaid. All repaired units will be shipped COD to the owner.
Repair charges will be added to the COD fee unless other arrangements are made.
9. This warranty is given in lieu of any other warranty expressed or implied.
10. MFJ Enterprises, Inc. reserves the right to make changes or improvements in design or
manufacture without incurring any obligation to install such changes upon any of the
products previously manufactured.
11. All MFJ products to be serviced in-warranty or out-of-warranty should be addressed to MFJ
Enterprises, Inc., 300 Industrial Park Road, Starkville, Mississippi 39759, USA and must be
accompanied by a letter describing the problem in detail along with a copy of your dated
proof-of-purchase.
12. This warranty gives you specific rights, and you may also have other rights which vary from
state to state.
MFJ-185
MFJ Deluxe DXer’s Digital Watch
General Information and Operating Instructions
Thank you for purchasing the MFJ-185 Deluxe DXer’s Digital Watch. Because of the
many features of this watch it can be complicated and difficult to use. Please readthese
instructions carefully before use.
FEATURES:
•Elegant world time travel clock with large display.
•World time of 50 different cities.
•Typical high and low temperatures of each city for every month of the year.
•Country code and area code of each city.
•Alarm
•Automatic current temperature measurement.
•Temperature display in Celsius or Fahrenheit.
•12 / 24 Hour format.
•E.L. Backlight
•Water Resistant Construction
SPECIFICATIONS:
•Accuracy at normal operating temperature: +/-30 seconds a month.
•Calendar: semi-auto-calendar pre-programmed until the year 2050.
•Temperature range: -10°C to 60°C
•Temperature accuracy: -10°C to 9.9°C: +/-3°C
10°C to 40°C: +/-2°C
41°C to 60°C: +/-3°C
BATTERY INSTALLATION & REPLACEMENT
•The MFJ-185 already comes with the battery installed.
•When the LCD becomes dim or goes out completely replace the battery. Follow these steps:
1. Remove the 4 screws on the back of the watch with a jeweler’s screwdriver and remove
the cover.
2. Remove a screw from the bracket holding the battery.
3. Remove the old battery and replace with a 3V, CR2025 coin battery or equivalent.
4. After replacing the battery, replace all parts & screws.
MODES OF OPERATION
Press the MODE button to cycle through the different modes. The three modes are: Normal Time
Mode, World Time Mode, and Alarm Time Mode.
NORMAL TIME MODE
In the Normal Time Mode, the time will be displayed in the below the world map with the seconds
running. The Month and Date will be displayed in the upper right corner. The upper left of the
LCD will show the ambient temperature or the day of the week.

Button Functions in Normal Time Mode:
DATE/TEMP –Toggles upper left display between temperature and day of the week
12/24 °C/°F–When the upper left part of the LCD displays temperature, this button toggles the
display between °C and °F. When the upper left part of the LCD displays the day of the week, this
button toggles the time display between 12 Hr and 24 Hr format.
SET –Briefly pressing the SET button will illuminate the E.L. Backlight for about 3 seconds.
When the upper left part of the LCD displays temperature, pressing and holding the SET button
will adjust the temperature down 3°C and a hand icon will appear on the LCD by the temperature.
This is for body temperature adjustment. When the upper left part of the LCD displays the day of
the week, pressing and holding the SET button will initiate the Time Setting Mode.
Notes about Temperature:
•When the watch is worn on the wrist, your body temperature will affect the temperature
reading and the accuracy will decrease.
•When the ambient temperature changes rapidly, the MFJ-185 may take up to 30 minutes to
achieve an accurate reading.
•For the most accurate temperature reading, remove the watch from your wrist and place it in
the environment to be measured.
•Do not expose the temperature to direct sunlight. Exposure to direct sunlight can cause the
temperature to read higher than the actual temperature and not be accurate.
Time Setting Mode
Follow these steps for Setting the MFJ-185:
•Be sure you are in Normal Time Display Mode and the Day of the week appears in the upper
left corner of the LCD.
•Press the SET button and hold for a few seconds until the seconds digits begin to flash.
•Press the DATE/TEMP button to reset the seconds to “00”.
•Press the MODE button and the hour digits will begin to flash.
•Press the DATE/TEMP button to advance the hour.
•Press the MODE button and the minutes digits will begin to flash.
•Press the DATE/TEMP button to advance the minutes.
•Press the MODE button and the year digits will begin to flash.
•Press the DATE/TEMP button to advance the year.
•Press the MODE button and the month digits will begin to flash.
•Press the DATE/TEMP button to advance the month.
•Press the MODE button and the date digits will begin to flash.
•Press the DATE/TEMP button to advance the date.
•To continue in the Time Setting Mode, pressing the MODE button will cycle through the
settings.
•To exit the Time Setting Mode, pressing the SET button briefly and the LCD will return to
the Normal Time Mode.
WORLD TIME MODE
In Normal Time Mode, press the MODE button once to enter World Time Mode. In the World
Time Mode, the city abbreviation will be displayed in the upper left corner of the LCD. The time
in that city will be displayed in the upper right corner of the LCD. The country code & area code,
high temperature, or low temperature will be displayed below the world map. Please see the table
below for city abbreviations:
Abbr. City Abbr. City Abbr. City Abbr. City
AKL Auckland CPH Copenhagen LON London SFO San Francisco
AMS Amsterdam CPT Cape Town LUX Luxembourg SHA Shanghai
ATH Athens DUB Dublin MEL Melbourne SIN Singapore
BCN Barcelona DXB Dubai MEX Mexico STO Stockholm
BER Berlin FRA Frankfurt MNL Manila SYD Sydney
BJS Beijing HEL Helsinki MOW Moscow TPE Taipei
BKK Bangkok HKG Hong Kong NYC New York City TYO Tokyo
BOM Bombay HNL Honolulu OSL Oslo VIE Vienna
BRU Brussels JER Jerusalem PAR Pairs YTO Toronto
BUE Buenos Aires JKT Jakarta RIO Rio De Janeiro YVR Vancouver
CAI Cairo LAX Los Angeles ROM Rome ZRH Zurich
CAS Casablanca LIM Lima SCL Santiago
CHI Chicago LIS Lisbon SEL Seoul
Button Functions in World Time Mode:
DATE/TEMP –When the Country Code and Area Code are displayed below the world map, this
button will cycle through the 50 cities in alphabetical order. When the typical high or low
temperature is displayed below the world map, this button will cycle through the typical
temperatures for each month of the year. The month for which the temperature is displayed is
located in the lower right corner next to the temperature.
12/24 °C/°F–When the Country Code and Area Code are displayed below the world map, this
button will let you adjust the time of the city displayed if Daylight Savings Time is observed. DST
will appear in the upper right corner buy the city time when enabled. When the high or low
temperature is displayed below the world map, this button will toggle between the typical high and
low temperature for the month displayed.
SET –Briefly pressing the SET button will illuminate the E.L. Backlight for about 3 seconds and
toggle between the typical temperature information and County Code and Area Code information.
Pressing and holding the SET button will allow you to adjust the time of the city displayed.
World Time Setting Mode
Please note that although you may have correctly set the time in Normal Time Mode, the time
displayed in the World Time Mode may not be correct. You must set the time in the World Time
Mode to match the time in Normal Time Mode. Follow these steps to ensure the world time and
normal time match:
1. In World Time Mode, cycle through the cities until you come to a city in your time zone.
2. Be sure that the Country Code and Area Code information is displayed below the world map.
If it is not briefly press the SET button.
3. With the Country Code and Area Code information displayed below the world map, press and
hold the SET button until the hour digits flash in the upper right corner.
4. Press the DATE/TEMP button to adjust the hour to the current hour in your time zone.
5. Press the MODE button and the minutes will begin to flash.
6. Press the DATE/TEMP button to adjust the minutes to the current time in your time zone.
7. Press the SET button briefly to exit the World Time Setting Mode.
ALARM TIME MODE
In Normal Time Mode, press the MODE button twice to enter Alarm Time Mode. In World Time
Mode press the MODE button once to enter the Alarm Time Mode. In Alarm Time Mode, “AL”
will appear in the upper left corner above the world map andthe actual time will appear in the
upper right corner above the world map. The alarm time will appear below the world map. To set
the alarm time, follow these steps:
1. Press and hold the SET button until the hour digits of the alarm time begin to flash.
2. Press the DATE/TEMP button to adjust the hour.
3. Press the MODE button and the minutes digits will begin to flash.

4. Press the DATE/TEMP button to adjust the minutes.
5. To exit Alarm Time Setting Mode, briefly press the SET button.
Note: If no buttons are pressedfor 1 minute after entering Alarm Time Setting Mode, the MFJ-
185 will automatically exit and return to Normal Time Mode.
In the Alarm Time Mode, press the 12/24 °C/°F button to enable the alarm. A small bell will
appear in the lower right corner next to the time when enabled. Press the 12/24 °C/°F button
again to disable the alarm and the bell will disappear. When the actual time reaches the Alarm
Time, the alarm will sound. To stop the alarm sound, press any button.
NEVER USE THE MFJ-185 WATCH FOR THE FOLLOWING:
•Clinical thermometer
•Temperature control for chemicals
•Water temperature gauge submerged for many hours
•Water temperature gauge for hot water exceeding 40°C (102°F)