YT306/YT308/YT316/YT318
Medical Electronic Thermometer
User’s manual
YT300 Series Medical Electronic Thermometer
Please read the user’s manual carefully and follow the instructions before use.
Medical Electronic Thermometer hereinafter referred to as thermometer!
The illustrations in this manual are renderings, please refer to the actual product.
Safety notes
Please read the followings carefully in cause of security and correct operation on this product.
Attention
Do not diagnose according to the result of measurement by oneself, please follow the doctor’s advice. The product is for armpit use and oral use. Please store the product where would not touched by children, and do not allow children use alone.
Do not use if it is wet. NOTE Only technical severs can dismantle or repair.
Do not bite the thermometer. Keep the batteries and screws far away from children. If accidentally strayed into eyes by liquid of batteries, please rinse with plenty of water. Keep the batteries far from fire. Please notice the place of anode and cathode when install the batteries. Do not use in a strong electrostatic and electromagnetic environment. Please don’t use the same thermometer with others to prevent cross infection. The castoff should be disposed in accordance with all applicable government regulations. If there is any accident during using the product, call the emergency hotline immediately and seek the help of professional medical staff Lifetime：3 years（except batteries）
Technical parameters
Product name: Medical Electronic Thermometer
Type: YT306, YT308, YT316, YT318
Degrees of protection provided by enclosures(IP code):IPX0
Rated voltage: DC1.5V tolerance: -10%~+5%
Battery life: used about 1000 times(5~10mins/time)
Temperature sensing part: thermistor
Measuring mode: actual measurement
Display mode: number
Device type: Class II, Type B application part
Temperature display and resolution: digital display, 0.1℃
Not AP/APG devices (Which cannot be used in an environment with flammable anesthetic gas mixed with air or flammable anesthetic gas mixed with oxygen or nitrous oxide)
| Temperature range | Maximum allowable error | Temperature range | Maximum allowable error |
<35.3℃ | ±0.3 | 39.1~41.0℃ | ±0.2 |
35.3~36.9℃ | ±0.2 | >41.0℃ | ±0.3 |
| 37.0~39.0℃ | ±0.1 |
Measuring range: 32.0℃～42.9℃
Measurement time: thermometer measurement time should not be longer than 10 minutes
Operating temperature : +5℃～+40℃,
Operating humidity range : 30%RH～85%RH
Temperature units: ℃
Storage temperature and humidity range: -20℃～+55℃, 10%RH～85%RH
Transportation and storage atmospheric pressure: 50kPa～106kPa
Operating atmospheric pressure: 70kPa～106kPa
Memory function: Record the lastest measured value
Alarm: When the temperature measured exceeds 37.8℃，the thermometer will beep to alarm
Product weight: About 11.8g (YT306, YT316) About 12g (YT308, YT318)
Product size: 127×17.5×10mm (YT306, YT316), 126×19×10mm (YT308, YT318)
Accessories: Button cell, storage cover, user’s manual
Structure
The medical electronic thermometer is consist of PCB (including IC chips, resistors, capacitors, and auxiliary control circuit), thermistors, buzzer, conductive rubber, touch switches, buttons, shell, battery cover, battery buttons, LCD bracket, cover, front panel button, steel cap and connecting parts. It has 12 kinds of specifications according to different shape.
Scope of application: The product is designed for measuring human body temperature.
Measuring method
Using-method:
- Press the power button.
- Stick the thermometer to armpit or oral.
- When hearing beeps means the measurement ends.
Armpit use:
Push and stick to the center of armpit then hold.
Oral use:
Stick to the root of the tongue, hold it and don’t move. Close the mouth when measuring.
Do not measure in the following situations:
- After sports, bathing or eating.
- When armpit sweats.
- Just after getting up.
Measuring principle
Sensing the temperature by thermistor and then processed by microchip, showing the result on the LCD at last. 
Trouble shooting guide
| Unstable measuring results | |
| Reason | The place which the sensing part sticked to changes everytime |
| Measure | Refer to the required using-method |
| Unstable measuring results | |
| Reason | The place which the sensing part sticked to changes everytime |
| Measure | Refer to the required using-method |
| Nothing displays after press the power button | |
| Reason | Low power, battery installed wrong |
| Measure | Replace the battery, intall the battery properly |
| Nothing displays after press the power button | |
| Reason | Low power, battery installed wrong |
| Measure | Replace the battery, intall the battery properly |
| Shows “Lo” or “Hi” | |
| Reason | “Lo” means low temperature，shows when lower than 32.0℃ “Hi” means high temperature，shows when higher than 42.9℃ |
| Measure | “Lo” doesn’t mean failure, can use again “Hi” means need cooling down the sensing part before using again |
Symbols
| Symbol | Description | Symbol | Description |
| Type B application part | IPX0 | No protection |
| NOTE！ Consult the manual |  | Stacking layers limit |
| Attention |  | Safety and environmental protection use period for 10 years |
 | Keep up |  | Manufacturer |
 | Fragile |  | Serial Number |
 | Keep dry |  | Stand-by |
| Forbidden |
Methods of replacing the battery
- The battery is low when the battery symbol flickers on the
LCD display, thus indicating the battery needs replacing.
- Open the back cover.
- Take out the battery, install the new battery properly.
- Install the back cover.
Take out the battery and store it properly when don’t use for a long time .
It is recommended to replace the battery provided in the packing with a new one when the product is under a performance test in a testing organization.
Table 1 – Guidelines and Manufacturer’s Declaration
– Electromagnetic Radiation –About all medical electrical equipment and systems.
Guidelines and Manufacturer’s Declaration | ||
| The thermometer should only be operated in the electromagnetic environment specified below. Purchasers and users should ensure that the thermometer is operated in the specified electromagnetic environment. | ||
| Radiation test | Compliance | Electromagnetic environment – guidelines |
| RF radiation GB 4824 | Group 1 | Thermometers use radio frequency energy only for their internal functions. As a result, its RF emission isnvery low and there is little chance of interference with accessory electronics |
| RF radiation GB 4824 | Class B | Thermometers are suitable for use in non-domestic and all installations not directly connected to the public low-voltage power supply network for domestic residences |
| Harmonic radiation GB 17625.1 | NA | |
| Voltage Variation/ Scintillation GB 17625.2 | NA | |
Table 2-Guidelines and Manufacturer’s Declaration
– Electromagnetic Immunity–About all medical electrical equipment and systems
Guidelines and Manufacturer’s Declaration | |||
| The thermometer should only be operated in the electromagnetic environment specified below. Purchasers and users should ensure that the thermometer is operated in the specified electromagnetic environment. | |||
| Immunity test | IEC60601 Test level | Comp -liance level | Electromagnetic environment guideline |
| Electrostatic discharge (ESD) GB/T 17626.2 | ±6 kV contact ±8 kV air | ±6 kV contact ±8 kV air | It is highly recommended to pave the ground with wooden, concrete or tile floorings. When the flooring is coated with synthetic materials,the relative humidity (RH) is recommended to be reduced by 30%. |
| EFT / Burst GB/T 17626.4 | Power circuit±2kV Incoming/output circuit±1kV | NA | Mains power quality should be that of a typical commercial or hospital environment. |
| Surge GB/T 17626.5 | ±1 kV wire to wire ±2 kV wire to earth wire | NA | Mains power quality should be that of a typical commercial or hospital environment. |
| The voltage dip，short-time outage and voltage variation of power input circuit GB/T 17626.11 | <5％ UT(>95 ％ UT’s dip)0.5 cycle40％ UT(60％ UT’s dip)5 cycles70％ UT(30％ UT’s dip)25 cycles<5％ UT(>95％ UT’s dip) 5cycles | NA | Mains power quality should be that of a typical commercial or hospital environment. If the user of the thermometer requires continued operation during power mains interruptions, it is recommended that thethermometer be powered from an uninterruptible power supply or a battery. |
| Power frequency (50/ 60 Hz) Magnetic field GB/T 17626.8 | 3 A/m | 3 A/m | The level of the power frequency magnetic field in commercial environments or hospitals should be same with that in general venues. |
Note：UT represents AC grid voltage before applying testing voltage. | |||
Table 3 – Guidelines and Manufacturer’s Declaration –
Electromagnetic Immunity – About medical electrical equipment and systems for non-life support
Guidelines and Manufacturer’s Declaration | |||
| The thermometer should only be operated in the electromagnetic environment specified below.Purchasers and users should ensure that the thermometer is operated in the specified electromagnetic environment. | |||
| Immunity test | IEC60601 Test level | Comp- liance level | Electromagnetic environment |
| Conduc- tion RFGB/T 17626.6 Radiation RFGB/T 17626.3 | 3 Vrms 150 kHz～80 MHz 3 V/m 80 MHz ～2.5 GHz | A 3 V/m | Portable and mobile RF communications equipment should be used no closer to any part of the thermometer, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance d=1.2 d=1.2 80 MHz ~ 800 MHz d=2.3 800 MHz ~ 2.5 GHz 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 metres (m). Field strengths from fixed RF transmitters, as determined by an |
electromagnetic site survey a), should be less than the compliance level in each frequency range b). Interference may occur in the vicinity of equipment marked with the following symbol: | |||
| 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 reflection from structures, objects and people | |||
| a) Field strengths from fixed 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 fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the thermometer is used exceeds the applicable RF compliance level above, the thermometer should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re- orienting or relocating thermometer. b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m | |||
Table 4 – The recommended separation distance between portable,mobile RF communication devices and medical electrical equipment or systems
The recommended separation distance between portable , mobile RF communication devices and the thermometer
| The thermometer should be operated in an electromagnetic environment where the RF interference is under control. To restrain electromagnetic interference, purchasers or users of this thermometer shall ensure that the minimum separation distance between the following recommended portable, mobile RF communication devices (transmitters) and the thermometer is maintained according to the maximum rated output of the devices. | |||
| The maximum output rating of the transmitter (W) | The separation distance based on the transmitter frequency (m) | ||
| 150 kHz～80 MHz d=1.2 | 80 MHz～800 MHz d=1.2 | 800 MHz ~ 2.5 GHz d=2.3 | |
| 0.01 | 0.12 | 0.12 | 0.23 |
| 0.1 | 0.38 | 0.38 | 0.73 |
| 1 | 1.2 | 1.2 | 2.3 |
| 10 | 3.8 | 3.8 | 7.3 |
| 100 | 12 | 12 | 23 |
| For those transmitters whose maximum rated outputs are not included in the above table, the recommended separation distance d expressed in meters (m) can be computed by the equation associated with the transmitter frequencies, where P stands for the maximum rated output expressed in watts (W) as specified by the manufacturer of the transmitter. Note 1: When the frequency ranges from 80 MHz to 800 MHz , the separation distance for the higher frequency should be applied. Note 2: These guidelines are not applicable to all circumstances for the propagation of electromagnetic waves can also be affected by the absorption and reflection of buildings, objects, and human bodies. | |||
Toxic and hazardous substances and the associated compounds or elements
| Part name | Toxic and hazardous substances and the associated compounds or elements | |||||
| Leadand its compounds ≤1000 PPM | Mercury and its compounds ≤1000 PPM | Cadmium and its compounds ≤100 PPM | Hexav alent chromium and its compounds ≤1000 PPM | Polyb romin ated biphenyl and its compounds ≤1000 PPM | Polybr ominated diphe nylether and its compounds ≤1000 PPM | |
| Plastic Enclosure | ○ | ○ | ○ | ○ | ○ | ○ |
| Internal cables | ○ | ○ | ○ | ○ | ○ | ○ |
| Circuit board (with LCD) | × | ○ | ○ | ○ | ○ | ○ |
| Battery | ○ | ○ | ○ | ○ | ○ | ○ |
| Packing materials | ○ | ○ | ○ | ○ | ○ | ○ |
| The table is produced based on the stipulation of SJ/T 11364 ○: It indicates that the content of toxic and hazardous substances in all homogeneous materials of the component is below the limit specified in GB/T 26572 standard. ×: It Indicates that the content of the toxic and hazardous substance in one of the homogeneous materials of the component beyond the limit specified in GB/T 26572 standard. | ||||||
Maintenance
1. Maintenance
Clean the sensing part and measuring part with clean water after use, dry with paper towel before storing.
Please keep the thermometer clean.
Clean with wet cloth if other parts get dirty.
NOTE：No water or liquid is allowed entering into the product.
2. NOTE
Do not use strong alkaline or strong acid solution to clean the product.
Do not rinse the product to prevent water.
Do not disinfect with alcohol or hot water which is more than 50℃.
Do not clean with ultrasonic to prevent damage.
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
Manufacturer Address: Yunyang Industrial Park (South of Zhenxin Road), Danyang City, Jiangsu Province, CHINA http://www.yuwell.com
Revision date: May 2021
230126-1A
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