Citizen CT915 User Manual

INSTRUCTION MANUAL

FOR

CT915

SAFETY PRECAUTIONS

WARNING

● Keep the battery away from infants. If an infant swallowed the battery, meet a doc­tor immediately.

● Measure temperature according to directions given by a doctor and consult him
(her).

CAUTION

● Do not disassemble the thermometer.

● Do not pull the cord strongly.

● Do not splash water over the thermometer.

● Do not leave the thermometer in a place where it will be exposed to high tempera-

ture or direct sunlight or where the ambient temperature will be below 0°C or the
humidity is high.

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FEATURES OF CT915

● CT915 records measurement results automatically.

CT915 records data of up to 120 days (measurements).

● Basal body temperature recording mode or all-measurements recording mode can
be selected.

If the basal body temperature recording mode is selected, the temperature is recorded
only one time a day. If the all-measurements recording mode is selected, all the measure­ment results are recorded.

● You can check the change of your body temperature by graph.

Since the temperature data of 31 days (31 measurements) are displayed by a graph, you
can check the measurement result and measurement date in order.

● Alarm to notify measurement time is available.

You can measure your body temperature at regular time every day.

● You can take out and store the probe easily.

You can take out and store the probe easily and carry the whole set easily since it is small
in size.

● Antibacterial plastic is used.

Since an antibacterial plastic is used for the probe, it is kept clean.

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English

NAME OF EACH PART

Sensor

Probe

Left shift switch

SET switch

Cover

Display in value
(Temperature, date)

Display in graph
(Display by dots)

POWER/MEASURE switch

Right shift switch

Cord

RESET switch

Battery cover

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HOW TO SET BATTERY

1. Remove the battery cover

Pressing the battery cover by the arrow, slide it in the direc­tion of the arrow to remove it.

2. Set the battery

Insert the rim of the battery under the battery hook with the
positive side up, then push in the battery until it is fixed se­curely. If the battery is set correctly, the buzzer sounds and
the display segments light up for 5 seconds. If the battery is
slanted, the thermometer does not operate.

3. Fix the battery cover

Fix the battery cover securely to the body.
* If the battery is replaced, the time, date, and alarm must be

set again.

* After the battery is set, if the display is disordered or the

switches do not work, push the reset switch in the battery
cover with a toothpick, etc.

* Even if the reset switch is pushed, the recorded data are

not deleted.

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English

SETTING ALARM, TIME, DATE, AND MODE

1. Turn the power on

Push and hold the POWER/MEASURE switch for a
while (about 1 second). A pip is heard and the power
is turned on.

2. Turn the alarm ON/OFF

1) Push and hold the SET switch for a while (about
1 second). The screen for setting the alarm ap­pears.

2) Push the right (s) or left (t) shift switch to dis-
play the bell mark (
again, the bell mark (
bell mark ( ) is displayed, the alarm is ON. While
the former is not displayed, the latter is OFF.

3) Push the SET switch to set the displayed item.

* When stopping setting halfway, push the POWER/

MEASURE switch.

). If the shift switch is pushed

) disappears. While the

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3. Set the “minute” of the alarm time

1) The alarm time is displayed and the “minute”
blinks.

2) Push the right (s) or left (t) shift switch to set
the “minute”. If the shift switch is pushed and held,
the number changes fast. If the right (s) shift
switch is pushed the number increases. If the left
(t) shift switch is pushed the number decreases.

3) Push the SET switch to set the “minute”. The item
to be set next blinks.

4. Set the “hour” of the alarm time

1) The alarm time is displayed and the “hour” blinks.

2) Set the “hour” by the operation in 3. 2) above,
then push the SET switch to set the “hour”.

* The “hour” is displayed in 24-hour display mode.

5. Set the “minute” of the present time

1) The present time is displayed and the “minute”
blinks.

2) Set the “minute” by the operation in 3. 2) above,
then push the SET switch to set the “minute”.

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English

6. Set the “hour” of the present time

1) The present time is displayed and the “hour”
blinks.

2) Set the “hour” by the operation in 3. 2) above,
then push the SET switch to set the “hour”.

7. Set the “day” of the present date

1) The present date is displayed and the “day” blinks.

2) Set the “day” by the operation in 3. 2) above, then
push the SET switch to set the “day”.

8. Set the “month” of the present date

1) The present date is displayed and the “month”
blinks.

2) A Set the “month” by the operation in 3. 2) above,
then push the SET switch to set the “month”.

9. Set the “year” of the present date

1) The present date is displayed and the “year” blinks.

2) A Set the “year” by the operation in 3. 2) above,
then push the SET switch to set the “year”.

* The “year” can be set to 2000

-

2099.

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10. Set the basal body temperature recording mode/

all-measurements recording mode.

If the “LADY” mark is displayed, the thermometer is
in the basal body temperature recording mode. In
this mode, the basal body temperature measured
for the first time on each day is recorded. If the “LADY” mark is not displayed, the
thermometer is in the all-measurements recording mode. In this mode, all the mea­sured temperatures are recorded.

1) Push the right (s) or left (t) shift switch to turn on (or off) the display of “LADY”.

2) Push the SET switch to set turning-on (or turning-off) of the display of “LADY”.

* If you have made any mistake in setting or you need to change the alarm time,

repeat setting from the first.

* If any key is not touched for about 1 minute, the set screen changes to the record

display screen automatically.

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English

BASAL BODY TEMPERATURE RECORDING MODE

1. Remove the probe from the body

1) Open the cover and push the rear end (left end)
of the probe lightly to remove the probe from the
hook.

2) Unwound the cord from the body.

2. Measure the basal body temperature

■ Method of measuring basal body temperature
(at a regular time once a day)

1) The alarm buzzer wakes you.

2) Push any one of the switches.
The alarm buzzer stops after about 30 seconds
automatically. If any switch is pushed, however,
the alarm buzzer stops and the measure screen
appears.
If any switch is not pushed, the alarm buzzer
sounds again after 7 minutes.

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Measurement
Screen

Display of
LADY

Measure­ment mark

* If you do not want to be woken by the alarm of this thermometer but by your own

alarm clock, etc., push and hold the POWER/MEASURE switch for a while (about 1
second) to turn on the power. Then, push the POWER/MEASURE switch momen­tarily to display the measure screen.

* If the POWER/MEASURE switch is pushed and held for a while (about 1 second),

the power is turned off. When displaying the measure screen while the power is
turned on, push and release the POWER/MEASURE switch quickly.

3) Place the probe under your tongue.
(See “How to measure basal body temperature correctly” on page 20.)
Apply the probe tip (sensor) to the groove at the center of the underside of your
tongue and close your mouth lightly.

* If peeps are heard, the measurement is in error (“E” is displayed). In this case, push

the POWER/MEASURE switch again and start measurement.

4) A pip is heard. When more pips are heard about 5 minutes after measurement is
started, measurement is finished.

* The first electronic pip indicates that the temperature is being measured normally.

* In the basal body temperature recording mode, the temperature measured for the

first time on each day is recorded automatically.

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English