everaid EV-T-1 Infrared Thermometer User Manual

Infrared Thermometer
FOREHEAD
MODEL NUMBER: EV-T-1

Installation Manual
PLEASE READ THIS MANUAL CAREFULLY BEFORE USE

Dear user: Thank you for purchasing the Infrared Thermometer of our company.
The device is only to be used, maintained, and serviced by personnel familiar with the operating manual as well as the ‘Important Safety Information. The instruction should be reserved for standby applications.

Important Safety Information

1. This device must only be used for the purposes described in this operating instruction. The device is intended for professional or family use only.
2. The thermometer is not waterproof. Do not immerse the device in water or in other liquids. Follow the instructions in Cleaning and Maintenance if needed.
3. Keep the thermometer away from direct sunlight. Keep the thermometer in a clean, dry environment (5-45°C, humidity <85%)
4. Do not touch the sensor inside the device.
5. It may affect the accuracy of measurements when one’s forehead is covered by hair, perspiration, cap, or scarf.
6. Do not drop, disassemble, repair or transform the device.
7. Do not use the device near large electromagnetic fields for the accuracy of measurements may be affected.
8. Should a problem occur with your device, please contact your retailer. Do not attempt to repair the device by yourself.
9. If batteries or components are swallowed accidentally, please comply with local laws and regulations.
10. Do not open the battery cover when testing in avoidance of electric shock.
11. The device should be used at a stable temperature. If there exists a sudden change in environmental temperature, please notice if the sensor is covered by moisture. Clean the moisture as described in Cleaning and Maintenance before the next operation in order to get an accurate result.
12. When the device is out of service for a long period, the batteries should be taken out to the prevention of leakage.
13. Do not load the device with used and new batteries. Damage to the device may occur due to differences in discharge characteristics.

Warning:

• Keep the device away from children.
• Do not throw the device or batteries into fire
• Use of this thermometer is not intended as a substitute for consultation with your physician.

Product Benefits

• Convenient and fast: measurements error up to ±0.2°C, measuring 5-2s;
• Width of measurements: 0.0-100°C;
• Various applications:

1. Human body temperature measurements;
2. Objects temperature measurements (eg. Rice paste temperature);
3. Liquids temperature measurements (eg. Bathwater for babies, milk);

• Clean and hygienic: Non-contact measurements, measures distance 1-3cm, preventing cross-infection;
• Simple and practical: measures at one-press; mode switch at one-press; memorization query at one-press, simple for operation;
• Measurement Warning: measured temperature> 37.5°C the device alarm song.
• Multiple memorizations: memorization of up to 32 measurements, easy for comparison;
• Fix setting: parameters adjustable for suiting different races or human bodies.

Description Of Symbols

Intended Use

Human body temperature measurements:
Objects temperature measurements (eg. Rice paste temperature); Liquids temperature measurements (eg. Bathwater for babies, milk);

Features

• This thermometer is classified as type-B, inner electric power in terms of prevention degree of electric shock;
• This thermometer is classified by its safety degree as follows: It can’t be operated in an environment that contains flammable anesthetic gas, air, oxygen, and Nitrous oxide;
• This thermometer is classified as No-Special-Protection according to GB4208 regulations;
• This thermometer is classified as Continuous operation equipment according to operating mode;
• Lists of accessories:
  Operating Instructions x 1; Certification x 1.

Product Description

• Product Composition

1. Passive IR Sensor
2. LCD Display
3. Multifunction button group
4. ON/Scan Button
5. Battery Cover

Product Description

• LCD Display Description

1. Surface Mode symbol
2. Body Mode symbol
3. Digital Layout
4. Measurements Layout
5. Battery Low Symbol
6. Volume On/Off Symbol
7. Temperature°C (Celsius) / °F(Fahrenheit) Scale
8. Memorized Measurements Serial Number
9. Memorization State Reminder

Technical Specifications

8. Use

• Operating temperature: 16-35°C 60.8°F-90°F

• Humidity rate: 589/0

• Power: DC 3V (2x AAA batteries)

• Size: 138 x 95 x 40 mm (L x W x H)

• Weight: 90g

• Measuring range: In Body Mode: 32-42.9°C 89.6°F-109.2°F

• Accuracy:
  a)32. 0-34.9°C : ±0.3°C
  b) 35. 0-42.0°C : ±0.2°C
  c) 42. 1-42.9°C ±0.3°C

• Measuring distance: 3-5cm

• Measuring time: 0.5-2s

• Temperature Mode:
  a)32.  0-37.4°C Normal
  b) >37.5°C Alarm

• Automatic Stop: <=18s

• Storage Temperature and Humidity: -20°C-55°C; 593%

If necessary, a circuit diagram and a list of components could be provided for repairing use for technical personnel.

Use

• Batteries Installation
  Press down and then backward at battery cover open, install 3.0VDC (two AAA alkaline batteries), close the battery cover. Please notice the positive and negative poles on the batteries. Do not reverse the poles.

• Ready for Measurements
  Correct operation leads to accurate measurements, or else measurements errors may occur. In avoiding inaccuracies of the results, follow the instructions below:

1. Aim towards the center of one’s forehead from a distance of 1-3cm and keeps vertical, then press the measuring key. The temperature is displayed on the indicator immediately;
2. Before measurements, please make sure there is no hair, perspiration, makeups or hat covered on the forehead;
3. Keep the device in the measuring environment for more than 5 minutes. Measures after the device’s temperature become accordance with the measuring environment;
4. Cold compression and other cooling measures taken by the tested person may lead to lowered measurements results. Measurements should avoid being taken under such circumstances;
5. Measurements should be taken in stable temperature Do not operate the device near to fan, air conditioner outlet where the airflow is strong;
6. Under the changing environment, the thermometer should be stable for 20 minutes before use.
7. The test object is suitable for all people, forehead or wrist, and the clinical deviation is ± 0.2 C.
8. If the device is not used for a long time, it should be placed in the new operating environment for 30 minutes before measurements;
9. Do not operate the device in strong sunlight;
10. It’s suggested that the most displayed result be taken for every 3 measurements;
11. To measure human body temperature, select ‘Body temperature Mode’; To measure other objects, liquids, and food temperature, select ‘Object Temperature Mode’;
12. If there are irresistible reasons that cause the lowered temperature of the forehead. You can take the temperature behind the earlobe;

• Starting to Measure:

1. Aim towards the forehead, press the power button. LCD instructor would display all the numbers and symbols. The device will test the room temperature and will delay turning on for one or two seconds;

2. One ‘beep’ sound or three ‘beep’ sounds would be heard once the display is over, indicating the end of the power-on measurements process. LCD would demonstrate the measured target’s temperature. At the same time, the backlight would flash one color from green, yellow, and red according to the setting;

Caution:
When the temperature of high fever is set above the LCD display a crying face, accompanied by 3 beeps, beep, beep alarm sound. This is to warn the patient of his/her possibility of having a fever.
To ensure the accuracy of the measurement, please wait at least 30 seconds after 5 consecutive measurements.

• Shifting the Measuring Mode

1. When the power is on, press the ‘Mode’ button to select between ‘Body temperature Mode’ and ‘Object Temperature Mode’. Measurements range of ‘Object Temperature Mode’ ranges at 0-100°C
2. ‘Body Temperature Mode’ is used to measure the temperature of the inner human body. ‘Object Temperature’ is used to measure the temperature of the surface of objects. (preset: Body Temperature Mode)

• Memorization query
  In the on state, pressing the ‘Memo’ button allows the user to enter memorization mode. To query on previously memorized values, press shortly on the ‘Memo’ button.

Note:

1. the larger serial number identifies earlier values, vise versa.
2. Memorized values directly display if there exist values that have been memorized. If not, ‘ ——–‘ would be displayed as a diagram in the right demonstrated.
3. The device is capable of storing 32 groups of measurements values. The other ones would be covered automatically according to time sequence.

1. Units Setting — Fl (presets as Celsius)
   In the on state, long-press the multi-function key (MODE) to enter Fl, let go of Fl parameter, press the MEMO key or SET key (SET) to switch the units of Celsius and Fahrenheit, then press the multi-function key (MODE) to confirm the unit setting, and enter F2 at the same time.

2. In the F2 state, press SET to turn on the prompt sound, press MEMO to turn off the prompt sound, then press MODE to confirm the setting and enter F3.

3. F3 is SET for high fever warning (factory setting is 38.1 C ). When entering F3 state, press the MEMO key to reduce 0.1 C, press the SET key to add 0.1 C, then press the MODE to confirm the alarm point setting, and enter F4 at the same time.

4. Press SET to turn on the screen light in the state of F4, press MEMO to turn off the screen light, and then press MODE to return to the test state.

Errors

selected, either superior to 42.9°C in Body mode or superior to 100°C in Object mode.
| Measured temperature over-low| The value is below the measurements range selected, either minor to 32°C in Body mode or minor to 100°C in Object mode.
| The measured temperature out of range| The device is not in operating temperature. (<16°C or >35°C)
| Error function alert| After the system is self-checked and error occurs, the screen flashes and automatically stops
| Battery low alert| The battery power is low. The screen will turn off after the “Lo” flashes. Please replace the battery immediately.
| Environment temperature unstable| The environment temperature is unstable. Please place the device in a stable environment for 30 minutes or more.
| Blank screen| Please make sure the battery is properly installed. Pay attention to the positive and negative poles of the batteries. Confirm whether the battery is still usable.

Batteries Replacement

The device uses 3.0VDC (two AM alkaline batteries). When the device shows that the battery is low, please refer to the Battery Installation chapter to change the batteries.

Cautions:

1. When opening the battery cover, pay special attention to the poles of the batteries. Wrong poles could lead to damage to the device
2. After a long period out of service, please take out the batteries in the prevention of leakage.
3. When the battery leaks or molds, please do not use the batteries.
4. Do not take the batteries close to or throw them into the fire in the prevention of explosion
5. Do not store batteries in an overheated or humid environment.
6. In the prevention of short circuits, do not place batteries, coins, keys, and other metal materials together in a pocket or in containers that could lead to short circuit problems.

Cleaning and Maintenance

• The infrared sensor is the most intricate part of the device. Do not touch the sensor with fingers or other materials. The sensor should be under careful protection, or else the accuracy of measurements will be affected.
• Clean the device with a cotton bud slightly moistened with 70%-75% alcohol. Do not let the liquid enter the inner body of the device. Do not clean the device with corrosive detergent. Do not immense the device with water or other liquids.

Electromagnetic Compatibility

• Protects the surface of LCD carefully.
• Place the device in a dry environment, and keep it away from dust, pollution, and direct sunlight.
• Cleaning every half a year or less is suggested.

Cautions:

1. The user should install and operate the thermometer according to the Electromagnetic Compatibility information in the files attached to the device.
2. Portable products and RF communication equipment may affect the performance of the device. Avoid the disturbance of strong electromagnetic equipment, like mobile phones, microwaves.
3. For more information, please refer to Chapter 16.

Cautions:
Warning:
The device should not operate next to or be piled up with other equipment. If necessary, observation should be conducted in making sure it operates properly.
The use of accessories and cables other than manufacturer-provided applications may cause extra radiation of infrared rays or lower capability of disturbance resistance.

Troubleshooting

Question 1: Why does the screen display to’ in the same environment?

Answer: Possibilities:

1. The measurements distance is too far. The device may have measured the temperature of the environment. The thermometer is designed to measure temperature within a distance of 1-3cm. The best distance is around 1cm.

2. The measurements position is improper. The thermometer should be aimed at the center of one’s forehead and should be vertical.

3. The measured person may have hair, perspiration, water over his The person may have been cooling compressed, Antipyretics prescribed, blown by the cold wind. The measurements should be retaken after the measured person stays in a stable environment for 5-10 minutes.
   Very few people have lower forehead temperatures than others when they were born. In this occasion, the results may remain to be ‘Lo’. The user could select ‘In Surface Mode’ to measure the target as well as other people’s forehead surface temperature. The comparison could be made under the contract.

4. overall temperature error.

Question 2: Feels like the result is inaccurate when first use. Why? Answer: Advice for the 1st use are listed as follows:

1. Place the thermometer in a stable environment for more than 30 minutes;
2. Take the temperature of a person using a conventional thermometer, getting a 36.8°C result for instance;
3. Take the temperature of the same person using the non-contact infrared thermometer. Keep the 1-3 cm distance between the thermometer and the forehead, take care to remove any obstacle which could alter the measurements (hair, ..). If a similar result is got, the non-contact infrared thermometer is properly set and ready for use.

Question 3: Is there any harm to the human body using the infrared thermometer? Is there any radiation?
Answer: Infrared thermometer is used to measure human body temperature by collecting infrared radiation of the human body. It passively receives infrared radiation energy. It does not need to contact the human body directly and does not bring cross-infection of different human bodies. The thermometer has no radiation to the human body, so it has no harm to the human body.

Question 4: The thermometer shows temperature over-high and over-low to all tested people, is it a product quality problem? Answer: This kind of problem is generally caused by the setting of the thermometer. It can be corrected according to the user’s instructions.

Temperature Knowledge

The human body is a complex biological comprehensive system. Body temperature is an important feature of the human body and life. Usually, we check the temperature of the forehead, cochlea, anus, oral cavity, and underarms to evaluate our health condition. Different body parts own different regular temperatures.

Tested body part| Normal
temperature| Age| Normal
temperature
---|---|---|---
temperature lea| 35.8-38°C| 0-2 years old| 36.4-38°C
Forehead temperature| 34.7-37.8°C| 3-10 years old| 36.1-37.8°C
Oral temperature| 35.5 -37.5°C| 11-65 years old| 35.9-37.6°C
Underarm temperature| 34.7-37.3°C| >65 years old| 35.8-37.5°C
Anus temperature| 36.6-38°C| |

Human body temperature changes with time within a day and is also affected by other extemal conditions such as age, gender, skin color, skin thickness, and age. Specifications are listed in the table.
There exist differences between female body temperature and male body temperature. Generally speaking, men are about 0.3 C higher. Female body temperature during ovulation will rise 0.3 C to 0.5 C than usual. Therefore, we can use this to know whether a woman is in the ovulation period to facilitate heredity or contraception.

The usual method is to use a thermometer to measure the basal body temperature of a female individual every day, and then convert it into a basal body temperature change curve chart, which can clearly see the ovulation period.

After-Sale Service

• This product enjoys a one-year free warranty with a shopping invoice from the date of purchase.
• Package and Operating Instructions are not covered by the warranty.
• We target the following damage caused by the user, please forgive us for failing to provide Free warranty service for the following conditions:

1. Failure caused by unauthorized refitting and refitting of products.
2. Failure in the course of use or handling or inadvertent drop
3. Failure caused by disobedient operation towards the instructions
4. Failure caused by lack of reasonable maintenance

•  Warranty outside the range of the repair services would be charged according to the corresponding provisions.
• In request of warranty service, please take the device to the dealers’ point.

Accessory

Announcement of Guiders and Manufacturers

This infrared thermometer is intended for use in the electromagnetic environment specified below. Purchaser or user of this infrared thermometer should ensure that it is operated in such an electromagnetic environment.
Emission experiment| Compliance| Electromagnetic Environment-Guidance
Radiofrequency emission GB4824| Group 1| The thermometer is only used for its internal functions, so its radio frequency emissions are low. The possibility of interference with nearby electronic equipment is very low.
Radiofrequency emission GB4824| Type B| The infrared thermometer is suitable to use in all equipment, including domestic installations and installations directly connected to residential and public low-voltage power grids.
Harmonic emission GB17625.1| Inadequate
Voltage Fluctuation/ Flashover Emission GB17625.2| Inadequate

Announcement of guiders and manufacturer — Electromagnetic immunity

This infrared thermometer is intended for use in the current environment specified below. Purchaser or user of this infrared thermometer should ensure it’s operated in such current environment.
Immunity Experiment| Ec60601 Experimental level| Compliance level| Electromagnetic Environment Guidance
Electrostatic discharge GB/1–17526.2| ±6KV Contact discharge ±8KV Air discharge| ±6KV Contact discharge ±8KV Air discharge| The floor should be wood, concrete or tile. If the floor is covered with synthetic material, the relative humidity shall be at least 30%
Electrical transient pulse group GB/T 17626.4| ±2KV Power cable ±1KV Output

/ input cable

| Inadequate| Inadequate
Surg
GB/T 7626.11| ±1KV To Ground
±2KV To Ground| Inadequate| Inadequate
Voltage sag, transient interruption and voltage change of input cable GB/T 17626.5| <5%UT, Lasts for 0.5 circles (on UT, >95% sag) 40%UT, Lasts for 5 circles (on UT, >60% sag) 70%UT, Lasts for 25 circles (on UT, >30% sag) <5%UT, Lasts for 5s (on UT, >95% sag)| Inadequate| Inadequate
Power requency electric field (50-60Hz) GB/T 17626.8| 3A/m| 3A/m 50/60Hz| The power frequency magnetic field should own the characteristic of the power- frequency magnetic field in a typical commercial or hospital environment.
Note: Ur refers to AC network voltage before test voltage application.

Recommended Isolation Distance Between the Portable and Mobile Communication Equipment and the Infrared Thermometer

The infrared thermometer is expected to be used in the electromagnetic environment controlled by radiofrequency radiation disturbance. According to the maximum rated output power of the communication equipment, the buyer or user can maintain the variable and mobile radio frequency through the following recommendations

The maximum rated output power of the transmitter (W)

| Isolation distance corresponding to different frequencies of a transmitter (m)
150 kHz-80MHZ d =12√P| 80 kHz-800MHZ d
=12√P| 80KHZ-2.5GhZ d
=12√ P
0.01| Inadequate| 0.12| 0.23
0.1| Inadequate| 0.38| 0.73
1| Inadequate| 1.2| 2.3
10| Inadequate| 3.8| 7.3
100| Inadequate| 12| 23

For transmitters not listed in the above table, d refers to the recommended isolation distance of rated maximum output power(m), which can be determined by the formula in the corresponding transmitter frequency column. Prefers to the transmitter’s maximum output rating(W) provided by the transmitter manufacturer
Note1: Formula of higher frequency range on 80MHZ and 800MHz frequencies should be applied
Note2: These guidelines may not be suitable for all situations. Electromagnetic propagation is affected by the absorption and reflection of buildings, objects, and the human body.

Filing Certificate number (Emergency code/ Technical requirement code):
Manufacturing License(S): Hunan CFDA production permit NO.20200041 Registration certificate(S): Hunan Medical Devices Registration Certificate No.20202070605

Documents / Resources

| everaid EV-T-1 Infrared Thermometer [pdf] User Manual
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