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Non-contact infrared thermometer

Termometr bezdotykowy

Безконтактен инфрачервен термометър

Bezkontaktní infračervený teploměr

Beskontaktni infracrveni termometar

Érintés nélküli infravörös hőmérő

Nekontaktinis infraraudonųjų spindulių termometras

Contactloze infraroodthermometer

Termometru cu infraroșu fără contact

Термометр инфракрасный бесконтактный

Bezkontaktný infračervený teplomer

Термометр інфрачервоний безконтактний

Cat. No 790

Model: JXB-311

THE MANUFACTURER RESERVES THE RIGHT TO ALTER THE SPECIFICATIONS OF THE PRODUCT WITHOUT PRIOR NOTIFICATION

Instruction version: V.00 17.12.2021

I. Safety precautions

• Follow the maintenance advice stipulated in this instruction manual.

• This device may be used for professional purposes or for personal home use.

• This device must be used for the purposes described in this instruction manual only.

• This device must be used in an ambient temperature range of between 10°C and 40°C only.

• This device must always be kept in a clean, dry area.

• Do not expose this thermometer to electric shocks.

• Do not expose this thermometer to extreme temperature conditions of 55°C or -20°C.

• Do not use this device in relative humidity higher than 85%.

• The protective glass over the lens is the most fragile part of the thermometer.

• Do not touch the glass of the infrared lens with your ngers.

• Clean the glass with a cotton bud lightly moistened with 95° alcohol.

• Do not expose the thermometer to sunlight or to water.

• Never drop the device.

• Should a problem occur with your device, please contact your retailer.

• Do not attempt to repair this device by yourself.

• Disposal of waste products, residues, etc., and of me equipment and accessories at the end of their expected service life are identied in the instruction for use.

II. Intended use

The device is an infrared thermometer intended to measure forehead temperature of infants and adults without contacting human body. It can be used by consumers in

household environment and doctor in clinic as reference.

III. Introduction

The JXB-311 Non-contact Infrared thermometer has been developed by using the latest infrared technology. This technology allows temporal artery (TA) temperature to

be taken at a distance of about 0cm~3cm away from the forehead. Precise, Instantaneous and without Contact, the JXB-311 is, up to now, the most suitable thermometer

for no risk on temperature measurement. It has been demonstrated that this method of TA temperature measurement is more precise than the tympanic thermometry

and better tolerated than rectal thermometry (1). However, as with other types of thermometer, it is essential to use the JXB-311 properly in order to obtain reliable and

stable results. You are therefore advised to read this instruction manual and the safety precautions carefully before use. (1)Greenes D, Fleisher G. Accuracy of a Noninvasive

Temporal Artery Thermometer for Use in Infants. Arch Pediatr Adolesc Med 2001;155:376.

IV. Precautions before use

The JXB-311 is pre-set at the factory. It is not necessary to calibrate the device when starting it up. In order to obtain reliable and stable results, you are advised each time

there is a signicant change in the ambient temperature due to a change in environment, to allow the JXB-311 to acclimatize to this ambient temperature for 15 to 20

minutes before using it. It is important to allow 3~5 seconds interval between two measurements.

V. Operating principle

All objects, solid, liquid or gas, emit energy by radiation. The intensity of this energy depends on the temperature of the object.The JXB-311 infrared thermometer is

therefore able to measure the temperature of a person by the energy the person emits. This measurement can be taken thanks to anexternal temperature probe on the

device which permanently analyses and registers the ambient temperature. Therefore, as soon as the operator holds the thermometer near the body and activates the

radiation sensor, the measurement is taken instantly by detection of the infrared heat generated by the arterial blood ow. Body heat can therefore be measured without

any interference from the heat of the surrounding environment.

THE DIFFERENT METHODS OF TEMPERATURE MEASUREMENT

Core temperature

Core temperature is the most precise measurement and involves measuring the temperature in the pulmonary artery by means of a catheter equipped with a thermal

probe which can read the temperature in situation. The same method is employed for probes measuring the oesophageal temperature. However, such invasive

temperature measurement methods require specic equipment and expertise.

Rectal thermometry

Rectal temperature adjusts slowly in comparison to the evolution of the body’s internal temperature. It has been demonstrated that rectal temperature remains raised

long after the internal temperature of the patient has started to drop and vice versa. Furthermore, rectal perforations have been known to occur as a result of this method

and without appropriate sterilisation techniques, rectal thermometry can spread germs often found in faeces.

EN Non-contact infrared thermometer

Oral thermometry

Oral temperature is easily inuenced by recent ingestion of food or drinks and by breathing through the mouth. To measure oral temperature, the mouth must remain

closed and the tongue lowered for three to four minutes which is a dicult task for young children to accomplish.

Axillary (armpit) temperature

Although it may be easy to measure axillary temperature, it has been proven that it does not provide an accurate measurement of the child’s internal temperature. To take

this type of temperature, the thermometer must be wedged tightly over the axillary ar tery. Despite the low sensitivity and relative inaccuracy of axillary temperature in

detecting fever, this method is recommended by The American Academy of Pediatrics as a screening test for fever in newborns.

Tympanic thermometry

In order to obtain a precise temperature reading, good command of the measurement technique is required. The thermometer probe must be placed as close as possible

to the warmest part of the external ear canal.

Normal temperatures according to measurement method

MEASUREMENT METHOD NORMAL TEMP°

RECTAL 36.6°C ~ 38°C

ORAL 35.5°C ~ 37.5°C

AXILLARY 34.7°C ~ 37.3°C

AURICULAY 35.8°C ~ 38°C

TEMPORAL 35.8°C ~ 37.8°C

The temperature of the human body varies throughout the day. It can also be inuenced by numerous external factors: age, sex, type and thickness of skin…

Advantages of temporal artery (ta) temperature

Infrared arterial temperature can be measured using a device placed on the forehead, in the temporal artery region. It has been demonstrated that this relatively new

method of measuring temperature is more precise than tympanic thermometry and better tolerated than rectal thermometry. The JXB-311 thermometer has been

designed to produce an instant forehead temperature reading without any contact with the temporal ar tery. As this artery is quite close to thesurface of this skin and

therefore accessible and given the blood ow is permanent and regular, it allows precise measurement of the temperature. This artery is linked to the heart by the carotid

artery which is directly linked to the aorta. It forms par t of the main trunk of the arterial system. The eciency, speed and comfort of taking a temperature from this area

make it ideal compared with other temperature measurements methods.

Normal temperature according to age

Age °C °F

0-2 years 36.4-38.0 97.5-100.4

3-10 years 36.1-37.8 97.0-100.0

11-65 years 35.9-37.6 96.6-99.7

> 65 years 35.8-37.5 96.4-99.5

Practical considerations when taking a temperature

• In order to ensure that precise and accurate temperature measurements are obtained, it is essential that each user has received adequate information on and training

in the temperature measurement technique when using such a device.

• It is essential to remember that although procedures such as taking a temperature may be simple they must not be trivialised.

• Temperature should be taken in a neutral context. The patient must not have undertaken vigorous physical activity prior to taking his/her temperature and the room

temperature must be moderate.

• Be aware of physiological variations in temperature which must be taken into consideration when evaluating the results: temperature increases by 0.5°C between 6

am and 3 pm. Women have a temperature that is higher, on average, by around 0.2°C. Their temperature also varies in accordance with their ovarian cycle. It rises by

0.5°C in the second half of the cycle and at the early stages of pregnancy.

• When sitting, temperature is lower by about 0.3°C to 0.4°C than when standing.

How to take a temperature

Aim at the FOREHEAD, over the right temporal region, from a distance of about °Cm~3cm, press the thermometer’s measurement button and the temperature

is instantly displayed. The reliability of the measurement cannot be guaranteed if the temperature is measured over another part of the body (e.g.arm, torso…)

Constraints

Please observe the following before any temperature measurement to ensure a stable and reliable result:

• Push back hair from the forehead.

• Wipe away any perspiration from the forehead.

• Avoid any drafts (e.g. from nasal specs, air conditioning…)

• Allow a 3~5 seconds interval between two measurements.

• Each time there is a signicant change in the ambient temperature due to a change in environment, to allow the JXB-311 to acclimatise to this ambient temperature

for at least 15 minutes before using it.