Citizen CTD 504 User Manual

INSTRUCTION MANUAL

FOR

DIGITAL EAR THERMOMETER

Model:

CTD 504

(Antibacterial Model)

English

Español

Português

Deutsch

Italiano

1201

Instruction Manual for Digital Ear Thermometer Model: CTD 504 (Antibacterial Model)

PARTS NAMES / Display Symbols

Sensor

Probe Tip

Start Button

Power ON/OFF Button

LCD Screen

Battery Cap

❸❹ ❺

❷

❶

❻

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❼

Symbol Description

Measuring Result. Displays the result in Fahrenheit or Celsius.

Low Battery Symbol. Flashes to alert the user to change the battery.

Too High Ambient Temperature. Refer to “Troubleshooting” for details.

Too Low Ambient Temperature. Refer to “Troubleshooting” for details.

Ready to Use Symbol. The CTD504 is ready to use.

Temperature Unit. The default setting is Celsius.

Memory Mode Symbol. With this symbol, the LCD screen displays the

previous result.

PRECAUTIONS (Intended Use)

The CTD504 is a clinical electronic thermometer that uses an infrared sensor to detect the body temperature of people of any age from the auditory canal in a home setting.

2. Do not use the CTD504 as a replacement for medical advice. Consult your doctor if you have any concerns. ONLY the CTD504 probe tip is waterproof. Do not immerse it in water or any other

3. liquid.

4. Do not drop the CTD504, and avoid any strong impact.

5. Do not use the CTD504 on any body part other than your ear.

6. Do not move or shake your body while measuring.

7. Do not use for any purpose other than the intended use. The manufacturer is not liable for misuse.

8. The CTD504 can measure up to six times a day. To know your normal body temperature range, we suggest you measure regularly.

9. If any damage occurs to the sensor inside the probe tip or to the unit itself, return the product to your local distributor.

10. Keep the CTD504 away from children. Do not let them use the CTD504 on their own. They may choke on the battery or tiny component parts by accident.

11. Install a new CR2032 lithium battery when the power is low. Use of any other battery may lead to inaccurate results or malfunction.

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12. Without regular recalibration, the results may not be accurate. Every CTD504 is calibrated right after production. See “Warranty and Recalibration” for details.

13. Keep the CTD504 away from sunlight and dusty places.

Important Notice: The CTD504 does not require a probe cover during use. It is important to

clean and disinfect the CTD504 before and after each use. See “Cleaning and Disinfection” for details.

For measurement:

• When asleep, pressure on the ear may cause higher-than-normal temperature. Wait a few minutes, and then measure again.

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• Clean your external ear before measuring. To ensure an accurate result, keep your ear free from obstructions or excess earwax.

• The measuring results from the left and right ears may differ slightly. We recommend measuring in the same ear.

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• Before measuring, the user and the CTD504 should be in a steady room temperature for at least 30 minutes. The user should also rest for 30 minutes after exercising.

HOW TO OPERATE

1. Press the segments.

2. If the CTD504 has saved past results, the LCD screen

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automatically displays the latest result.

3. When

1. To improve accuracy, follow the illustrations below. For adults, pull the ear up

button. The LCD screen displays all digital

or ﬂ ashes with a short beep, the CTD504 is ready to use.

and back. For infants and children, pull the ear back.

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2. Fit the probe tip into the ear canal, and then press the

START

until you hear a long beep.

3. Take the CTD504 out of the ear canal. The LCD displays the

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latest measuring result. Without any operation, the CTD504 automatically shuts off after 1 minute.

Note: Before re-measurement, wait 1 – 3 minutes.

Adults

button. Release the button and wait a few seconds

Infants and Children

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HOW TO SWITCH FROM TO (FROM TO ).

1. In power-off mode, press and hold the seconds. When starts ﬂ ashing, release the button.

2. Press the

3. Wait until the CTD504 automatically shuts off and restarts. It is now ready to use.

button again to switch from to .

START

button for 6

RECALL MEMORY

1. In power-off mode, press and release the enter Memory Recall Mode. Press the The LCD screen displays the ﬁ rst memory set number with the latest measuring result.

2. Press the stored results in a loop.

START

button repeatedly to scroll through all 12

START

button to

button again.

ERASE MEMORY

1. While holding the CTD504 starts up.

2. When the LCD displays the previous measuring result, release the button.

3. To check memory erasing, turn the CTD504 off, and enter Memory Recall Mode again.

button, press and release the

START

button. The

START

BATTERY REPLACEMENT

• ﬂ ashes: You can still measure, but the accuracy may not impaired.

•

lights or no reaction at all: Change the battery as soon as possible.

Note: Change the battery away from small children and any source of heat.

1. Press the upper part of the battery cap to unlock it.

2. Insert the tip of a tool into the gap at the side of the battery compartment. Remove the worn-out battery.

3. Insert a new CR2032 lithium battery into the CTD504, according to the polarities in the ﬁ gure. Push it ﬁ rmly into place with a “click”, then replace the cap.

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CLEANING INSTRUCTIONS

The CTD504 does not require a probe cover during use. Clean and disinfect the CTD504 before and after each use. If you wish to share the CTD504 with others, follow the instructions below.

◆

Preparation

1. Cotton bud: Available in supermarkets.

2. 70 % concentration alcohol swab: Available in

supermarkets.

Note: Dispose of used cotton buds and alcohol swabs in

accordance with local regulations.

◆

Cleaning : Probe area

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Use a clean cotton bud to wipe off any visible dirt or ear wax. Gently wipe the area clean. Note: The most delicate and sensitive part of the CTD504 is the sensor inside the probe tip. Poking it with force may cause damage to the CTD504. When cleaning,

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take extra care.

Hold the CTD504 facing down to prevent water getting into the CTD504. Use an alcohol swab to clean the probe area in a circular motion for 15 seconds (around 20 times).

DISINFECTION (Probe & Exterior Area)

1. Hold the CTD504 facing down to prevent water getting into the CTD504. Use an alcohol swab to clean the probe

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area in a circular motion for 15 seconds (around 20 times).

2. Then, use the same alcohol swab to wipe the exterior area back and forth for another 15 seconds (around 20

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times).

3. Wait at least 30 seconds until the CTD504 is completely dry.

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Continue to set units on the next page, and start measuring. Repeat the steps above when measurement is done.

NOTE:

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Do not use detergent or any strong chemicals on the CTD504.

FEVER ALERT

The CTD504 has a built-in “Fever Alert” feature. If you have a fever between 37.5 °C – 43.0 °C (99.5 °F – 109.4 °F), the “Fever Alert” function will inform you by a ﬂ ashing result, red LED backlight, and a series of beeps. NOTE: Do not use the CTD504 as a replacement for medical advice. Consult your doctor if you have any concerns.

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MAINTENANCE and STORAGE

◆

Storage

1. If you will not use the CTD504 for over 2 months, remove the battery from the compartment.

2. Always store the CTD504 in its container after use.

3. ONLY the CTD504 probe tip is waterproof. Do not dip it in water or any other liquid.

4. Keep the CTD504 away from:

• Extreme temperatures

• Overly humid or dry environment

• Direct sunlight

• Dusty places.

5. For details of environmental conditions, refer to “Speciﬁ cations”. Using the CTD504 outside the stated range may lead to inaccurate results or malfunction.

◆

Maintenance

1. Do not disassemble or change any parts of the CTD504. Such action may reduce its accuracy.

2. Do not drop the CTD504, and avoid any strong impact.

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ABOUT THE EAR THERMOMETER

Normal body temperature differs by body parts, time and age. Here are two tables for your reference:

1. Normal Body Temperature Range

Age

Site

Oral N/A

Rectal

Axillary

Ear

Core

0 – 2

years old

97.9 – 100.4 °F

36.6 – 38.0 °C

94.5 – 99.1 °F

34.7 – 37.3 °C

97.5 – 100.4 °F

36.4 – 38.0 °C

97.5 – 100.4 °F

36.4 – 38.0 °C

Source: Ofﬁ cial Health Central, http://www.ofﬁ cialhealthcentral.com.

3 – 10

years old

95.9 – 99.5 °F

35.5 – 37.5 °C

97.9 – 100.4 °F

36.6 – 38.0 °C

96.6 – 98.0 °F

35.9 – 36.7 °C

97.0 – 100.0 °F

36.1 – 37.8 °C

97.5 – 100.0 °F

36.4 – 37.8 °C

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11 – 65

years old

97.6 – 99.6 °F

36.4 – 37.6 °C

98.6 – 100.6 °F

37.0 – 38.1 °C

95.3 – 98.4 °F

35.2 – 36.9 °C

96.6 – 99.7 °F

35.9 – 37.6 °C

98.2 – 100.2 °F

36.8 – 37.9 °C

Over 65

years old

96.4 – 98.5 °F

35.8 – 36.9 °C

97.1 – 99.2 °F

36.2 – 37.3 °C

96.0 – 97.4 °F

35.6 – 36.3 °C

96.4 – 99.5 °F

35.8 – 37.5 °C

96.6 – 98.8 °F

35.8 – 37.1 °C

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2. Figure: Diurnal Variations in Body Temperature

Hours of activity and work Hours of rest and sleep

a.m. p.m. a.m.

Deg.

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Source: 1911, Encyclopedia Britannica, 11th edition, Volume 2, Part 1, Slice 1, p95.

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TROUBLESHOOTING

LCD screen Description & Solution

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中文

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ﬂ ashes

Battery power is low, but the CTD504 can still measure.

➜

Remove the worn-out battery. Insert a new CR2032 battery as soon as possible. Without enough energy, the CTD504 cannot function as it should.

lights

Battery power is too low to measure.

➜

Remove the worn-out battery. Insert a new CR2032 battery as soon as possible.

Too high ambient temperature

Ambient temperature is higher than 40.0 °C (104.0 °F)

➜

Leave the CTD504 in a room around 10.0 °C – 40.0 °C (50.0 °F – 104.0 °F) for 30 minutes. Then measure again.

Too low ambient temperature

Ambient temperature is lower than 10.0 °C (50.0 °F)

➜

Leave the CTD504 in a room around 10.0 °C – 40.0 °C (50.0 °F – 104.0 °F) for 30 minutes. Then measure again.

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LCD screen Description & Solution

Outside displayed temperature range

Result is higher than 43.0 °C (109.4 °F).

➜

The user should rest in a steady room temperature for at least 30 minutes. Then measure again.

Outside displayed temperature range

Result is lower than 34.0 °C (93.2 °F).

➜

The user should rest in a steady room temperature for at least 30 minutes. Then measure again.

Error symbol

Disturbance occurred while measuring.

➜

Repeat the measuring steps again. If the error persists, return the CTD504 to your local distributor.

Error symbol

Memory error occurred while measuring.

➜

Repeat the measuring steps again. If the error persists, return the CTD504 to your local distributor.

OTHER INFORMATION

This product conforms to the provisions of the EC directive 93/42/EEC (Medical Device Directive). And also complies with following standards (included but not limited):

Safety standard: EN 60601-1 Medical electrical equipment part 1: General requirements for safety

EMC standard: EN 60601-1-2 Medical electrical equipment part 1-2: General requirements for safety- Collateral standard: Electromagnetic compatibility- Requirements and tests

Performance standards: EN 12470-5, Clinical thermometers - Part 5: Performance of infra-red ear thermometers (with maximum device)

Follow instructions for use.

+40°C

(104°F) +10°C (50.0°F)

The upper and lower limits of temperature.

0197

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Keep dry.

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BF Classiﬁ cation:

- Internally powered equipment

- BF type applied part

- IPX0

- Not suitable for use in presence of ﬂ ammable anesthetic mixture with air or with oxygen or nitrous oxide

- Continuous operation with short-time loading

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To avoid inaccurate results caused by electromagnetic interference between electrical and electronic equipments, do not use the device near a mobile phone or microwave oven. At least keep a maximum output power of 2 w yields and a distance 3.3m away from this equipment.

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Discard the used product to the recycling collection point according to local

regulations.

HEALTH & LIFE Co., Ltd.

9F, No. 186, Jian Yi Road, Zhonghe District, New Taipei City, Taiwan www.healthandlife.com.tw

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EMERGO EUROPE

Molenstraat 15, 2513 BH, The Hague, The Netherlands

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Warranty & Recalibration

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Warranty For One Year from Manufacturing Date

CITIZEN SYSTEMS JAPAN Co., Ltd. grants a 1 year warranty on the product commencing on the date of purchase. Within the limited time, we will eliminate any defects in the appliance resulting from faults in the material or workmanship free of charge.

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Please note that this service does not cover damage caused by misuse or abuse; accident; the attachment of any unauthorized accessory; alteration to the product; improper installation; unauthorized repairs or modiﬁ cation; improper use of electrical/power supply; loss of power; dropped product; malfunction or damage of an operation part due to failure to provide the manufacturer’s recommended maintenance; transportation damage; theft; neglect; vandalism; or environmental conditions; loss of use during the period the product is at a repair facility or otherwise awaiting parts or repair; or any other conditions whatsoever that are beyond the control of the importers or distributors.

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Recalibration Notice

Every CTD504 is properly calibrated right after production.

We recommend that USERs bring the CTD504 to certain laboratories every 2 years for proper recalibration.

The CTD504 does not need periodic recalibration, if the user handles it according to this manual.

SPECIFICATIONS

Measurement method Infrared

Dimension (L × W × H) 120 × 39 × 52 mm / 4.73 × 1.54 × 2.03 inch

Weight (without battery) 66.80 g / 2.36 oz

Measurement range 34.0 °C – 43.0 °C (93.2 °F – 109.4 °F) Low temperature display Temperature<34.0˚C (93.2˚F): display: L˚C (L˚F) High temperature display Temperature>43.0˚C (109.4˚F): display: H˚C (H˚F)

Display resolution 0.1 °C or 0.1 °F

Lab accuracy

Clinical accuracy

(repeatability)

Memory sets 12

Auto power off 1 minute

Battery CR2032 lithium battery (3V) × 1

Battery life 1000 times

Operating conditions

Storage/Transportation

conditions

Safety classiﬁ cation

Accessory CR2032 lithium battery (3V) × 1

35.5 °C – 42.0 °C (95.9 °F – 107.6 °F): ± 0.2 °C (± 0.4 °F) Other range: ± 0.3 °C ( ± 0.5 °F)

± 0.3 °C / ± 0.5 °F

Temperature: 10.0 °C – 40.0 °C (50.0 °F – 104.0 °F) Humidity: 15 % – 95 % R.H.

Temperature: -25.0 °C – 55.0 °C (-13.0 °F – 131.0 °F) Humidity:

95 % R.H.

BF Type equipment

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Appendix

Guidance and manufacturer’s declaration - electromagnetic emissions

The device is intended for use in the electromagnetic environments listed below, and should only be used in such environments:

Emissions test Compliance

RF emissions CISPR 11

Group 1

RF emissions CIS PR 11

Harmonic emissions IEC 61000-3-2 Voltage ﬂ uctuations/ ﬂ icker

emissions IEC 61000-3-3

Guidance and manufacturer’s declaration - electromagnetic immunity

The device is intended for use in the electromagnetic environments listed below, and should only be used in such environments:

Immunity test IEC 60601 test

Conducted RF IEC 61000-4-6

Radiated RF IEC 61000-4-3

NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies. NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reﬂ ection from structures, objects and people.

level

3 Vrms 150 MHz to 80 GHz

3 V/m 80 MHz to

2.5 GHz

Class B

Not Applicable

Compliance

level

Not Applicable

3 V/m

Electromagnetic environment - quidance

RF energy is used only to maintain the device’s operation. Therefore, its RF emissions are so low that it is not likely to cause any interference in nearby electronic equipment.

The device is suitable for use in all establishments, including domestic establishments, and those directly connected to the public low-voltage power supply network that supplies buildings used for domestic purposes.

Electromagnetic environment - guidance

Portable and mobile RF communications equipment should be used no closer to any part of the device, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

Recommended separation distance

Not Applicable

d = 1,2 d = 2.3

where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m).

Field strengths from ﬁ xed RF transmitters, as determined by an electromagnetic site survey, level in each frequency range.

Interference may occur in the vicinity of equipment marked with the following symbol:

80 MHz to 800 MHz 800 MHz to 2.5 GHz

should be less than the compliance

a). Field strengths from ﬁ xed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to ﬁ xed RF transmitters, an electromagnetic site survey should be considered. If the measured ﬁ eld strength in the location in which the device is used exceeds the applicable RF compliance level above, the device should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the device. b). Over the frequency range 150 kHz to 80 MHz, ﬁ eld strengths should be less than 3 V/m.

Guidance and manufacturer’s declaration - electromagnetic immunity

The device is intended for use in the electromagnetic environments listed below, and should only be used in such environments:

Immunity test IEC 60601 test

Electrostatic discharge (ESD) IEC 61000-4-2

Power frequency (50/60 Hz) magnetic ﬁ eld IEC 61000-4-8

Recommended separation distances between portable and mobile RF communication equipment and the device.

The device is intended for use in an electromagnetic environment where radiated RF disturbances are under control. The user can help prevent electromagnetic interference by keeping the device at a minimum distance from portable and mobile RF communications equipment (transmitters). The table below details the maximum output power of the transmitter:

Rated maximum

output power of

transmitter

0.01 N/A 0.12 0.23

0.1 N/A 0.38 0.73 1 N/A 1.2 2.3

10 N/A 3.8 7.3

100 N/A 12 23

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies. NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reﬂ ection from structures, objects and people.

level

± 6 kV contact

± 8 kV air

3 A/m 3 A/m

150 kHz to 80 MHz

Compliance

level

± 6 kV contact

± 8 kV air

Separation distance according to frequency of transmitter

N/A

Electromagnetic environment -

Floors should be wood, concrete or ceramic tile. If ﬂ oors are covered with synthetic material, the relative humidity should be at least 30 %.

Power frequency magnetic ﬁ elds should be at levels characteristic of a typical location in a typical commercial or hospital environment.

80 MHz to 800 MHz

d = 1.2

guidance

800 MHz to 2.5 GHz

d = 2.3

Manual de instrucciones para el Termómetro de oído digital Modelo: CTD 504 (Modelo antibacteriano)

NOMBRES DE LAS PIEZAS / Símbolos en pantalla

Sensor

Punta de la sonda

Botón de inicio

Botón ENCENDER/APAGAR

Pantalla LCD

Tapa de la pila

❷

❶

❸❹ ❺

❻ ❼

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Símbolo Descripción

Resultado de la medición.

Símbolo de batería baja. Parpadea para avisar al usuario que cambie

la batería. Temperatura ambiental demasiado elevada. Consulte la sección

“Resolución de problemas” para obtener más detalles. Temperatura ambiental demasiado baja. Consulte la sección

“Resolución de problemas” para obtener más detalles. Símbolo Listo para usar. El CTD504 está listo para ser utilizado.

Unidad de temperatura. La conﬁ guración predeterminada es Celsius.

Símbolo Modo de memoria. Con este símbolo, la pantalla LCD

muestra el resultado anterior.

Muestra el resultado en Fahrenheit o Celsius.

PRECAUCIONES (Uso previsto)

El CTD504 es un termómetro electrónico clínico que emplea un sensor por infrarrojos para detectar la temperatura corporal de personas de cualquier edad a partir del canal auditivo en un ajuste doméstico.

2. No utilice el CTD504 como sustituto de un dispositivo médico. Contacte con su médico en caso de dudas.

ÚNICAMENTE la punta de la sonda del CTD504 es resistente al agua. No lo sumerja en agua o cualquier otro líquido.

4. No deje caer el CTD504 y evite golpes bruscos.

5. No utilice el CTD504 en otra parte del cuerpo que no sea el oído.

6. Permanezca quieto durante la medición.

7. No lo utilice para cualquier otro ﬁ n distinto al uso previsto. El fabricante no se responsabiliza de un uso incorrecto del mismo.

8. El CTD504 puede realizar hasta seis mediciones al día. Para conocer su rango de temperatura corporal normal, le aconsejamos que realice mediciones con frecuencia.

9. Si el sensor que se encuentra en el interior de la punta de la sonda o la propia unidad se dañan, devuelva el producto a su distribuidor local.

10. Mantenga el CTD504 lejos del alcance de los niños. No deje que utilicen el CTD504 solos. Podrían tragarse la pila o cualquier componente pequeño de forma accidental.

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11. Instale una nueva pila de litio CR2032 cuando el nivel de carga sea bajo. El uso de cualquier otra pila podría originar resultados imprecisos o un malfuncionamiento.

12. Sin una recalibración regular, puede que los resultados sean imprecisos. Cada CTD504 está calibrado justo después de su fabricación. Consulte “Garantía y recalibración” para obtener más detalles.

13. Mantenga el CTD504 lejos de la luz solar y lugares con polvo.

Aviso importante: El CTD504 no requiere una tapa para la sonda durante su uso. El importante

limpiar y desinfectar el CTD504 antes y después de su uso. Consulte “Limpieza y desinfección” para obtener más detalles.

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Para la medición:

• Cuando la persona esté dormida ejercer presión en la oreja puede provocar una temperatua más elevada de lo normal. Espere unos minutos, y luego vuelva a tomar la temperatura.

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• Limpie el oído externo antes de tomar la temperatura. Para garantizar un resultado preciso, mantenga el oído libre de obstrucciones o de exceso de cera.

• Los resultados de la medición de la oreja izquierda y derecha pueden diferir ligeramente. Le recomendamos tomar la temperatura en la misma oreja.

• Antes de tomar la temperatura, el usuario y el CTD504 deberán permanecer a una temperatura ambiental constante durante 30 minutos, como mínimo. El usuario también deberá descansar durante 30 minutos antes de realizar cualquier ejercicio.

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FUNCIONAMIENTO

1. Pulse el botón segmentos digitales.

2. Si el CTD504 ha guardado los resultados anteriores, la

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pantalla LCD muestra automáticamente el resultado más reciente.

Cuando o parpadea con un pitido breve, el CTD504 está listo para su uso.

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1. Para mejorar la precisión, siga las siguientes ilustraciones. Para adultos,

estire la oreja hacia arriba y hacia atrás. Para niños, estire la oreja hacia atrás.

. La pantalla LCD muestra todos los

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2. Coloque la punta de la sonda en el canal auditivo, y luego

3. Saque el CTD504 del canal auditivo. La pantalla LCD

Nota: Antes de volver a tomar la temperatura, espere entre 1 y 3 minutos.

Adultos

pulse el botón segundos hasta oir un pitido largo.

muestra el resultado más reciente de la medición. Sin realizar ninguna operación, el CTD504 se apaga automáticamente transcurrido 1 minuto.

START

. Suelte el botón y espere unos

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Niños

CÓMO ALTERNAR ENTRE Y (ENTRE Y ).

1. En el modo de desconexión automática, mantenga pulsado

2. Vuelva a pulsar el botón

3. Espere a que el CTD504 se apague y reinicie automáticamente. Ahora ya está

START

el botón a parpadear, suelte el botón.

listo para ser utilizado.

durante 6 segundos. Cuando empieza

START

para alternar entre y

RECORDAR MEMORIA

1. En el modo de desconexión, pulse y suelte el botón para acceder al modo de Recordar memoria. Pulse el botón

de nuevo. La pantalla LCD muestra el primer

START

número de la memoria con el resultado más reciente de la medición.

2. Pulse el botón todos los 12 resultados guardados en un bucle.

START

varias veces para desplazarse por

START

BORRAR MEMORIA

1. Mientras mantiene pulsado el botón CTD504 se inicia.

2. Cuando la pantalla LCD muestra el resultado anterior de la medición, suelte el botón

3. Para comprobar el borrado de la memoria, apague el CTD504 y vuelva a acceder al modo Recordar memoria.

START

, pulse y suelte el botón

START

. El

SUSTITUCIÓN DE LA PILA

• parpadea: Todavía puede tomar la temperatura, pero la precisión no puede verse afectada.

• se ilumina o no reacciona en absoluto: Cambie la pila lo antes posible.

Nota: Cambie la batería lejos de niños pequeños y de cualquier fuente de calor.

1. Presione la parte superior de la tapa de la pila para desbloquearla.

2. Introduzca la punta de una herramienta en el oriﬁ cio situado en el lado del compartimiento de la batería. Extraiga la pila gastada.

3. Inserte una nueva pila de litio CR2032 en el CTD504, según las polaridades de la ﬁ gura. Presione ﬁ rmemente con un "clic" y luego vuelva a colocar la tapa.

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