3.
[37.00°C(98.60°F)] is not displayed during the measurement preparation period.
CORRECTION
A temperature from [36.95°C(98.51°F)] to
[37.05°C(98.69°F)] is displayed.
The thermometer may be used as it is.
A temperature other than that in the range from
[36.95°C(98.51°F)] to [37.05°C(98.69°F)] is
displayed, even after turning the thermometer on
and off several times.
Please contact your nearest authorized
Omron dealer.
CORRECT MEASUREMENT
Measurement accuracy cannot be assured when the
method used to measure the temperature is incorrect.
Displayed when the temperature of
the section is less than
32°C(89.6°F).
ERROR DISPLAYS
TROUBLESHOOTING
1.
Wide differences in readings
2.
Nothing appears in the display section when the power switch is pressed.
TAKING THE TEMPERATURE
If possible, a full probe cover covering all sections should be used. Replace the probe cover
with a new one after each use.
Probe covers are included with the thermometer, place a probe cover carefully over the tip.
1.
Press the ON/OFF button.
NOTE:
When a temperature other than 37°C(98.6°F) is
displayed, please refer to the “TROUBLESHOOTING”
section for details to correct the problem.
2.
Apply the thermometer to the measurement site.
Use the oral or underarm site for measurement.
NOTE:
Even if the “L” indicator fails to display (when only the temperature is displayed), this
is not an error. So the temperature may be taken as is.
3.
When the reading is ready, the thermometer will emit a [beep-beep-
beep] sound three times. Remove the thermometer from the
measurement site and read the result.
BUZZER NOTIFICATION TIMING
NOTES:
• The buzzer notification timing is based on an environmental temperature of 23
degrees without the probe cover.
• There will be individual differences in the measurement results.
4. Turn o the thermometer and return it to its protective case.
NOTES:
• The reading will automatically be stored in memory.
• Although the thermometer will automatically switch itself off 30 minutes after use or
after 3 minutes when it has not been used; it should be turned off manually to
conserve the battery.
DISPLAYING THE LAST TEMPERATURE
Press the ON/OFF button to display the temperature that was measured most recently.
For details, please refer to the “TAKING THE TEMPERATURE” section.
Underarm : approx. 120 secondsOral : approx. 60 seconds
SWITCHING BETWEEN FAHRENHEIT/CENTIGRADE (CELSIUS)
Press the ON/OFF button for 5 seconds to display the current system of
measurement and hold for another 2 seconds until a beep is emitted.
The display will ch ange to the other measurement system at the time when
the beep sounds.
Thank you for purchasing Omron Digital Basal Thermometer.
The thermometer you purchased offers a safe, accurate and quick temperature reading. You
can measure your Basal Body Temperature through oral. You can also take usual measurement
through underarm with more accurate two decimal places readings. This thermometer
eliminates any worries about broken glass or mercury hazards. Note that your temperature is
affected by smoking, eating or drinking. Thoroughly read this instruction manual before using
your OMRON MC-272L Digital Basal Thermometer. Contact your doctor if you have any
questions regarding specific temperatures.
IMPORTANT SAFETY NOTES
WARNING
• A high or prolonged fever requires medical attention. Please contact your doctor.
• Carefully read and follow the enclosed instructions to ensure accurate temperature
readings. Note that temperature readings are affected by many factors including physical
exertion, the drinking of hot or cold beverages before measurement, as well as measuring
technique.
• This thermometer is used for taking temperatures orally or under the arm. Do not attempt
to take temperatures at other sites, such as in the ear, as it may result in false readings and
may lead to injury.
• Store the thermometer out of the reach of children.
• Do not attempt measurements when the thermometer is wet as inaccurate readings may
result.
CAUTION
• Do not bite down on the thermometer. Doing so may lead to breakage and/or injury.
• Do not allow the thermometer to be shared among individuals.
• Do not use mobile phones near the thermometer.
• Do not attempt to disassemble or repair the thermometer. Doing so may result in inaccurate
readings.
• Do not leave the battery, screws or probe cover where children can get to them. Children
may swallow them. Should a child swallow the battery, screws or probe cover, contact a
doctor immediately.
• Should the battery fluid come into contact with the eyes, rinse the eyes with copious
amounts of clean water. Visit your doctor for treatment as this may lead to loss of sight or
eye injury.
• In the event battery fluid comes into contact with the skin or clothing, wash it off with lots
of clean water.
• Do not attempt to incinerate the battery. It may burst.
• Pay attention to polarity (+ –) when replacing the battery. Failure to do so may lead to fluid
leakage, heat generation or bursting, resulting in damage to the unit.
• Remove the battery when the thermometer will not be used for 3 months or more. Failure
to do so may lead to fluid leakage, heat generation or bursting, resulting in damage to the
unit.
• Do not use the thermometer in places where strong static electricity or electromagnetic
fields are present. Doing so may lead to inaccurate readings and may contribute to
instrument failure.
• Do not step on the unit or the hard case.
• Do not attempt to disinfect the sensing section of the thermometer by immersing in alcohol
or in hot water (water over 50°C).
• Failure to use a probe cover may lead to bacteria and viral infection.
GENERAL SAFETY PRECAUTIONS
• Do not use the thermometer to measure anything other than human body temperatures.
• Do not drop the thermometer and storage case or expose them to shock or vibration.
• Do not store the thermometer in the storage case when it is damp. Wipe it off with a dry
cloth first.
• Avoid taking the temperature until after 30 minutes has lapsed after exercise, bathing or
eating/drinking.
ON/OFF Button
Display Window
Sensor Tip
REMEDY
This is not an error so it may be
ignored and the temperature taken.
Cool the sensing section and then
take the temperature
INDICATOR CAUSE
Displayed when the temperature of
the sensing section is greater than
42°C(107.6°F).
All of the display
symbols appear.
After 5 seconds
After 2 seconds
°C to °F °F to °C
When the [°C(°F)] indicator symbol
blinks on and off, the thermometer
is ready for use.
Temperature measurement will
commence and the [°C(°F)]
indicator symbol will blink on and
off.
Blinking
The [°C(°F)] indicator symbol will
stop blinking and stay on when the
reading is ready.
This is not an error, so the
temperature may be taken as is.
Temperature
Displayed
Beep
Beep
Beep
°F
°F
°F
Beep-beep-beep
Indicator stays lit
DIGITAL BASAL THERMOMETER
Model MC-272L
Accessory: Storage Case
F
C
FAHRENHEIT/CENTIGRADE CONVERSION CHART
96
35.6
36.1
34.4
35.0 37.2 38.3 39.4 40.6
36.7 37.8 38.9 40.0
97
94
95 99 101 103 105
98 100 102 104
*BBT Chart Included
Displayed when the surrounding
temperature exceeds 32°C(89.6°F).
• The temperature sensing part of the
thermometer is being placed at a different
location for each reading.
• Confirm that the thermometer was not
moved while the temperature was being
taken.
• Confirm that the mouth was not kept open
while the measurement was in progress.
CORRECTION
CORRECTION
Check to see that the thermometer is being
placed at the location for “Correct
Measurement” as described in the
“TAKING THE TEMPERATURE” section.
CAUSE
CAUSE
The polarity is reversed.
Take out the battery and replace using the
correct polarity.
The battery is depleted.
Check to see if appears in the
display section. Replace with a new battery
(LR41).
Tongue
All of the display symbols appear.
The most recently measured
temperature is displayed together
with the M indicator.
Waiting for use.
CARE AND MAINTENANCE
Keep the thermometer clean.
• Do not use strong jets of water to clean the thermometer or leave it immersed in water for
long periods of time.
• Wipe the thermometer with a soft clean cloth.
• When using alcohol to clean the thermometer, make sure that it does not come into contact
with the indicator section.
• For stubborn stains, wipe the thermometer with a cloth that has been dampened with water
or a neutral detergent solution and then wring thoroughly. Finish by wiping with a soft dry
cloth.
• Observe the following to prevent damage to the thermometer.
- Do not use benzene, thinner, gasoline or other strong solvents to clean the thermometer.
- The thermometer is not water resistant. Do not allow water or other liquids to enter the
unit.
- Do not soak the sensing section in alcohol for long periods of time or attempt to
sterilize it using hot water (water at a temperature of 50°C(122°F) or higher).
- Do not use ultrasonic washing to clean the thermometer.
3. Insert the new battery with the “+” pole facing
up as shown in the diagram.
BATTERY REPLACEMENT
Battery: Alkaline-Manganese Button Battery LR41 (available commercially)
Battery Replacement Indicator ( )
Replace the battery when the battery replacement indicator appears when the thermometer is
switched on.
The “+” mark faces upwards
1. Remove the screw holding down the
battery cover on the underside of
the thermometer with a small
screwdriver and take o the cover.
4. Replace the battery cover and screw it down.
2. Use a thin sti rod to remove the battery.
NOTE:
The battery may pop out so caution is necessary when doing this.
Battery
NOTES:
• The thermometer comes fitted with a battery for testing
purposes. This battery may not provide the same amount
of battery life as a new battery.
• Consult your local authorities and follow their instructions
for the disposal of batteries and/or the thermometer.
Remove the screw.
Battery Cover
Turn the display
so that it faces
inwards.
UNDERARM (AXILLARY) USE:
• Place the probe tip in the center of
the armpit.
• Lock the probe tip under the arm, using the arm to
slightly apply pressure inwards.
The angle should be 35-45
degrees in relation to the
arm.
Thermometer Angle
Store the thermometer in its storage case.
• Do not store the thermometer in the following types of places. Doing so may damage the
thermometer.
- Wet locations.
- Locations with high heat and humidity or those that are exposed to direct sunlight.
Areas close to heating equipment, dusty locations, or environments where there are
high salt concentrations in the air.
- Locations where the unit will be subjected to leaning, shock or vibration.
- Pharmaceutical storage areas or locations where corrosive gases are present.
NOTES:
The following may result in incorrect measurements.
• Heavy underarm perspiration
• Taking the temperature after being under the blankets for a long time
Correct: Wipe off any underarm perspiration before taking the temperature.
The thermometer will automatically
switch itself off.
BBT Chart
Year
Month
Sun Mon Tue Wed Thur Fri Sat Sun Mon Tue Wed Thur Fri Sat Sun Mon Tue Wed Thur Fri Sat Sun Mon Tue Wed Thur Fri Sat Sun Mon Tue Wed Thur Fri Sat Sun Mon Tue Wed Thur Fri Sat Sun
Date
Day
Menstrual Cycle
Symbols
Comments
Legend
Menstruation
Menstrual Cramps
Spotting
Intercourse
Vaginal Discharge
BASAL BODY TEMPERATURE (BBT) CHART
WHEN PREGNANCY IS DESIRED
The life of the egg released during ovulation is about 24 hours and the sperm is capable of
fertilization for approximately 3 days so the period when pregnancy is most likely to occur is
in the 5-day period from 3 days prior to the day of ovulation through the day after ovulation.
WHEN PREGNANCY IS TO BE AVOIDED
In theory, it should be possible to avoid getting pregnant by using caution during the 5-day
fertile period which includes the day of ovulation. However, there are cases in which the egg
remains viable for two days or more or when the sperm maintains its viability for more than 3
days, so the time from the 4th day of the high temperature period up to the start of the next
menstrual period should be considered the period of infertility.
*Birth control that relies only on this may result in unwanted pregnancy. Always augment this
with another form of birth control.
BASAL BODY TEMPERATURE
BBT should be taken orally for 5 minutes
Women differ from men in their sexual functions in that they are capable of
“getting pregnant”, “bearing children” and “nursing children”.
Due to this, women have unique hormones, the conditions of which can be
checked by various external methods. Measuring the BBT is one of these methods.
The Basal Body Temperature (BBT) is the temperature closest to that in the sleep
state, taken immediately upon awakening, before attempting activity or influenced
by psychological factors.
Ideally, the BBT should be taken immediately upon waking while still lying down.
Taking the BBT after eating or drinking, even while lying in bed, will result in an
incorrect reading. A correct BBT cannot be taken after getting up and becoming
active.
BASAL BODY TEMPERATURE CURVE
The Basal Body Temperature (BBT) consists of two phases with the day of ovulation in
the middle. The BBT is lower prior to ovulation and higher after ovulation. 1 or 2 days
after ovulation the temperature shifts into the high range and stays there for about 2
weeks. It then drops prior to menstruation. The changes in a person’s BBT can be
understood by recording the BBT over several months.
Copy the Basal Body Temperature Chart on the reverse side to record your BBT.
The BBT Curve
The BBT curve indicates a woman’s reproductive cycle, her sexual function and health.
Recording the BBT over a period of several months allows one to estimate the day of
ovulation as well as the date of the start of next menstrual period in order to determine
when pregnancy is most likely to occur and to use birth control measures if necessary. In
addition, the information may also assist in the discovery of gynecological disorders or
psychosomatic conditions.
It is recommended that an obstetrician-gynecologist be consulted when there are
concerns about the BBT curve or feelings of malaise occur.
DETERMINING THE POSSIBILITY OF PREGNANCY
When menstruation has not started by the 21st day after the day of ovulation and the
temperature remains high, there is a possibility of pregnancy.
Pregnancy Example
*There are individual differences in the BBT Curve (changes in body temperature). An
obstetrician-gynecologist should be consulted when there is a pattern different from that
shown above.
Normal BBT Curve
There may be individual differences in the elevation of temperatures.
PROPER MEASUREMENT
Place the sensing section of the thermometer firmly against the root of the tongue and use the
tongue to prevent its movement. Hold the thermometer to keep it in place and make sure that
the mouth is closed during measurement.
˚C
Self-diagnosis of measured results and treatment is dangerous. Be sure to follow the
instructions of your doctor.
If you believe you are pregnant, see your doctor immediately.
1663655-4F
HOW TO TAKE ACCURATE BASAL BODY TEMPERATURES
• The Basal Body Temperature (BBT) measurements should be taken orally for 5 minutes
in the case of keeping the BBT chart.
• Take your temperature immediately after waking up, before getting out of bed. Do not eat
or drink anything or start moving around before taking your temperature.
• As far as possible, take your temperature at approximately the same time each morning.
• Place the thermometer's sensing section in the same location when taking the temperature
each time.
• Do not open your mouth while taking your temperature orally. Avoid breathing through
the mouth.
• Record the reading on the BBT chart after measurement.
The display section is faced upwards.
Root of
Tongue
Placement Points
ORAL USE:
The mouth should remain closed up to 5 minutes before
attempting a reading.
• Place the thermometer in the mouth under the
tongue so that it rests to the left or right of the
root of the tongue.
• Use downward tongue pressure to hold the
thermometer in place.
• Hold the thermometer to keep it from sliding
around in the mouth.
This device fulfills the provisions of the EC directive 93/42/EEC (Medical
Device Directive) and the European Standard EN12470-3:2000, Clinical
thermometers - Part 3: Performance of compact electrical thermometers
(non-predictive and predictive) with maximum device.
Read the instruction in this manual carefully.
OMRON HEALTHCARE Co., Ltd.
53, Kunotsubo, Terado-cho, Muko, Kyoto
617-0002 JAPAN
OMRON HEALTHCARE EUROPE B.V.
Scorpius 33, 2132 LR Hoofddorp
THE NETHERLANDS
OMRON (DALIAN) CO., LTD.
Dalian, China
OMRON HEALTHCARE SINGAPORE PTE LTD.
438A Alexandra Road, #05-05/08, Alexandra Technopark, Singapore 119967
www.omron-healthcare.com.sg
Production Facility
CAUSE
˚C
37.00
36.50
Menstrual cycle
Symbols
High Temperature Period
Low Temperature
Period
Ovulation
M
e
n
s
t
ru
a
t
ion
P
r
eg
n
a
n
cy Poss
i
ble
I
nferti
l
e P
eriod
Greatest Possibility
of Pr
eg
n
a
n
cy
Pregnanc
y
P
ossible
Menstrual Cycle
Asia Pacific HQ
Power Supply: 1.5V DC, 1 LR41 Alkaline-Manganese Button Battery
Battery Life: Approx. 1100 readings (If used for 5 minutes per day).
Measurement Method: Actual measurement
Protection Against Internally powered ME equipment
Electric Shock:
SPECIFICATIONS
Product Name: Digital Basal Thermometer MC-272L
Power Consumption: 0.1mW
Sensing Unit: Thermistor
Temperature Display: 4-digit, +°C (°F) display in 0.01 degree increments
Measurement Accuracy: ± 0.05°C (35.00 to 38.00°C)
± 0.1°C (32.00 to 34.99°C, 38.01 to 42.00°C)
± 0.09°F (95.00 to 100.40°F)
± 0.18°F (89.60 to 94.99°F, 100.41 to 107.60°F)
(when measured at a standard room temperature of 23°C
(73.4°F) in a test tank held at constant temperature)
Measurement Range: 32.00 to 42.00 °C (89.60 to 107.60 °F)
Usage Environment Surrounding temperature +10 to +40°C (+50 to +104°F),
Temp and Humidity: Relative Humidity 30-85%RH
Storage Environment Surrounding temperature –20 to +60°C (–4 to +140°F),
Temp and Humidity: Relative Humidity 30-95%RH
Weight: Approx. 11g (with battery installed)
External Dimensions: 18.4mm(w) 130.0mm(l) 11.3mm(d)
Accessories: Test Battery (Alkaline-Manganese Button Battery LR41), Storage Case, Instruction Sheet, 5 Probe Covers.
The specifications may be changed without prior notice.
This OMRON product is produced under the strict quality system of OMRON HEALTHCARE Co., Ltd., Japan.
=Type B
Applied Part:
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