DMT-4770b Digital Thermometer

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Product Information

Specifications

• Type: Digital Thermometer (Not Predictive)

• Measure Range: Temperature: 41-104°F (5-40°C)

• Accuracy: ±0.4°F (±0.2°C)

• Operating mode: Three years

• Display: LCD

• Memory: Three years

• Battery: Included

• Battery life: Not specified

• Dimension: 420.00 mm x 124.00 mm

• Weight: Not specified

• Expected service life: Not specified

• Ambient operating range: Temperature: -4 to 131°F (-20 to
  55°C), Relative humidity: 15%~95%RH, Atmospheric Pressure: 70kPa ~
  106kPa

• Storage and transportation condition: Temperature: -4 to 131°F
  (-20 to 55°C), Relative humidity: 15%~95%RH, Atmospheric Pressure:
  70kPa ~ 106kPa

• Ingress Protection Rating: IP 27

• Classification: Type BF

• Contraindication: No contraindication

Product Usage Instructions

Set the Thermometer

To set the thermometer, ensure the alarm is on. Press the On/Off
Button to confirm the Alarm Clock On/Off status.

Recall Memory

1. Turn off the thermometer.
2. Press the UP or Down Button to enter memory mode.
3. Press the UP or Down Button to view the memory.
4. Press the On/Off Button to power off.

Delete All Memory

1. In the memory mode, press and hold UP and Down Button until the
   “Choose Whether to Delete Memory” screen is displayed.

2. Press the UP/Down Button to select whether to delete all
   memories.

3. Press the On/Off Button to confirm whether to delete all
   memories.

Delete One Memory

1. In the memory mode, press UP or Down Button to stop at the
   memory you want to delete.

2. Press and hold the On/Off Button until the “Choose Whether to
   Delete Memory” screen is displayed.

3. Press the UP/Down Button to select whether to delete the
   memory.

4. Press the On/Off Button to confirm whether to delete the
   memory.

5. Return to the Display memory value screen.

Frequently Asked Questions (FAQ)

Q: Can this thermometer be used for infants?

A: Yes, this thermometer can be used on people of all ages,
including children under 8 years old with adult supervision.

Q: What should I do if the device is exposed to mechanical

shock?

A: If the device is exposed to mechanical shock, its performance
may be degraded. Contact customer support for assistance.

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420.00 mm

124.00 mm

Digital Thermometer

OWNER’S MANUAL

Model:DMT-4770b

Warning :
Read instructions thoroughly before using digital thermometer. Choking Hazard: Thermometer cap and battery may be fatal if swallowed. Do not allow children to use this device without parental supervision. Do not use thermometer in ear. Designed use is for oral, rectal, and armpit (axilla) readings only. Do not place thermometer battery near extreme heat as it may explode. Remove battery from the device when not in operation for a long time. The use of temperature readings for self-diagnosis is dangerous. Consult your doctor for the interpretation of results. Self-diagnosis may lead to the worsening of existing disease conditions. Do not attempt measurements when the thermometer is wet as inaccurate readings may result. Do not bite the thermometer. Doing so may lead to breakage and/or injury. Do not attempt to disassemble or repair the thermometer. Doing so may result in inaccurate readings. After each use, disinfect the thermometer especially in case the device is used by more than one person. Do not force the thermometer into the rectum. Stop insertion and abort the measurement when pain is present. Failure to do so may lead to injury. Do not use thermometer orally after being used rectally. For children who are two years old or younger, please do not use the devices orally. If the unit has been stored at temperatures over 41 104(5 40) , leave it in 41 104 (5 40) ambient temperature for about 15 minutes before using it. Use of this equipment adjacent to or stacked with other equipment should be avoided because it could result in improper operation. If such use is necessary, this equipment and the other equipment should be observed to verify that they are operating normally. PORTABLE RF communications equipment (including peripherals such as antenna cables and external antennas)should be used no closer than 30 cm (12 inches) to any part of the [ME EQUIPMENT or ME SYSTEM],including cables specified by the MANUFACTURER. Otherwise, degradation of the performance of this equipment could result. It is not intended for use in the oxygen rich environment and presence of flammable anesthetic mixture with air, oxygen or nitrous oxide. Do not put the thermometer in direct sunlight or with cotton wool, otherwise the accuracy will be affected. ME equipment should not be cleaned and disinfected while in use.

Indications For Use
The digital thermometers are intended to measure the human body temperature in regular mode orally, rectally or under the arm. And the devices are reusable for clinical or home use on people of all ages, including children under 8 years old with adult supervision.
Expected Operator
·The patient is an intended operator. The Applied part is the probe. ·All functions the patient can safely use. ·The patient can replace the batteries.

PLEASE READ CAREFULLY BEFORE USING
This digital thermometer provides a quick and highly accurate reading of an individual’s body temperature. To better understand its functions and to provide years of dependable results, please read all instructions first. This appliance conforms to the following standards: ASTM E1112 Standard Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature, ISO 80601-2-56 Medical electrical equipment –Part 2-56:Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement, IEC 60601-1-11 Medical electrical equipment –Part 1-11: General requirements for basic safety and essential performance ­Collateral Standard: Requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment and complies with the requirements of IEC 60601-1-2(EMC), AAMI/ANSI ES60601-1(Safety) standards. And the manufacturer is ISO 13485 certified.

CONTENTS
1 Thermometer, 1 Owner’s Manual, 1 Storage Case

PRODUCT ILLUSTRATION Figure 1

LCD Up/Down Button

Probe

On/Off Button

PRECAUTION
The performance of the device may be degraded should one or more of the following occur: – Operation outside the manufacturer’s s tated te mperature and humidity range. – Storage outside the manufacturer’s s tated te mperature and humidity range. – Mechanical shock (for example, drop test) or degraded sensor. – Patient temperature is below ambient temperature. Portable and mobile RF communications can affect the device. The device needs special pre-cautions
regarding EMC according to the EMC information provided in the accompany documents. *Do not use the devices in the MR environment.

SYMBOL EXPLANATION

Caution

Direct Current

TYPE BF APPLIED PART

Date of manufacture

Batch Code

Refer to instruction manual/booklet

95%

106kPa

15%

Storage and Transportation Humidity limitation: 15%~95%RH 70kPa

Atmospheric pressure limitation

Manufacturer rGeecnoevrearly/syremcbyocllafbolre

Disposal of this product and used batteries should be

131 oF Storage and Transportation Temperature Limit: -4 131

carried out in accordance with the national regulations for -4oF the disposal of electronic products.

(-20~55)

IP27 The first num.2:Protected against solid foreign objects of 12,5 mm and greater. The second num.7:Protected against the effects of temporary immersion in water.

SPECIFICATIONS
Type: Measure Range:
Accuracy:
Operating mode: Display: Memory: Battery: Battery life: Dimension: Weight: Expected service life:
Ambient operating range:
Storage and transportation condition:
Ingress Protection Rating: Classification: Contraindication:

Digital Thermometer (Not Predictive)
89.60-109.38( 32.0042.99)( / chosen by manufacturer) ±0.1(±0.05) during 95.00~100.40(35.00~38.00) at 64.4~82.4 (18~28 ) ambient operating range ±0.2(±0.1) for other measuring and ambient operating range Direct Mode Liquid crystal display, 4 ½ digits The last thirty memories One 3.0V DC button battery type CR2032 Approx. 60hours of continuous operation or 6 months with 3 measurements per day 13.3cm×3.4cm×1.6cm(L x W x H) Approx. 23 grams including battery
Three years
Temperature: 41104(540) Relative humidity: 15%~95%RH Atmospheric Pressure : 70kPa ~ 106kPa
Temperature: -4131(-20~55) Relative humidity: 15%~95%RH Atmospheric Pressure : 70kPa ~ 106kPa
IP 27
Type BF
No contraindication

Set the thermometer
1.Set / temperature unit Turn off the thermometer. Press and hold the On/Off Button for approximately 2 seconds, until the / is flashing. Press the UP/Down Button to choose /. Press On/Off Button to confirm the / unit. 2.Set Alarm Clock Time Turn off the thermometer. Press the UP and Down Button, to enter Clock Setting. Press UP/Down Button to choose time, press On/Off Button to confirm . 3.Turn ON/OFF the Alarm Clock After confirmed the Alarm Clock will enter setting the alarm to turn on or off Press the UP and Down Button, to enter Clock Setting. Press the up or down button to turn the alarm on or off. The alarm symbol is displayed when
the alarm is on, but not when the alarm is off . Press On/Off Button to confirm the Alarm Clock On/Off.
Recall memory
Turn off the thermometer. Press the UP or Down Button to enter memory mode. Press the UP or Down Button to view the memory. Press On/Off Button to power off.

Delete all memory
In the memory mode, press and hold UP and Down Button until the Choose Whether to Delete Memory screen is displayed .
Press the UP/Down Button to select whether to delete all memories. Press On/Off Button to confirm whether to delete all memories.

Delete one memory
In the memory mode, press UP or Down Button to stop the interface at the memory you want to delete. Press and hold the On/Off Button until the Choose Whether to Delete Memory screen is displayed. Press the UP/Down Button to select whether to delete the memory. Press On/Off Button to confirm whether to delete the memory. Return to the Display memory value screen.

Bluetooth requirements
1. The thermometer requires a bluetooth device with: Bluetooth 4.0 or later Android 6.0 or later *IOS 10.0 or later.
2. And works with: . iphone , iPod, iPad . Android Phones and Tablets.

DIRECTIONS

1. Press the On/Off Button next to LCD display. A tone will sound as the screen shows

,

the thermometer then goes into the testing mode.

2. Position thermometer in desired location (mouth, rectum, or armpit.) a) Oral Use: Place thermometer under tongue as indicated by” ”

position shown in Figure 1. Close your mouth and breathe evenly

through the nose to prevent the measurement from being influenced

by inhaled/exhaled air.

Figure 1

b) Rectal Use: Lubricate silver probe tip with petroleum jelly for easy insertion. Gently insert

sensor approximately 1cm (less than 1/2 “) into rectum.

c) Armpit Use: Wipe armpit dry. Place probe in armpit and keep arm pressed firmly at side.

From a medical viewpoint, this method will always provide inaccurate readings, and should not

be used if precise measurements are required.

3. The degree sign flashes throughout the testing process. When flashing stops an alarm will beep.

The measured reading will appear on the LCD simultaneously. The measurement time until the signaling

tone (beep) must be maintained without exception.

4. To prolong battery life, press the On/Off Button to turn unit off after testing is complete. If no action

is taken, the unit will automatically shut off after around 5 minutes

*Note: Normally the buzzes are” Bi-Bi-“; Alarm beeps more rapidly when temperature reaches 37.8 (100) or higher ,and the buzzes are”Bi-Bi— Bi-Bi— Bi-Bi— Bi-Bi—Bi-Bi”

TROUBLESHOOTING

Error message

Problem

Solution

Temperature taken is lower Turn off, wait one minute and take a new temperature

than 89.60°F(32.00°C).

via close contact and sufficient rest.

Temperature taken is higher Turn off, wait one minute and take a new temperature

than 109.38°F(42.99°C).

via close contact and sufficient rest.

The system is not functioning properly.
The thermometer works properly.

Unload the battery, wait for 1 minute and repower it. If the message reappears, contact the retailer for service.
Use the thermometer normally

When battery outline flashes, it indicates that the power is low, but you can continue to measure.
The thermometer could not work due to low battery.

The thermometer will take a proper measurement but batteries must be replaced soon.
Replace the battery.

BATTERY REPLACEMENT

1. Replace battery when ”

“o r”

” appears in the lower right corner of LCD display.

2. Put a thin board such as a coin on fillister of cover. Turn the battery anti-clockwise until the cover is off

(See Figure 2).

3. Use a non-meteal instrument such as a pen to remove old battery from the battery holder (See Figure 3). Discard battery according to local law.

4. Place a new 3.0V DC CR2032 into the chamber with positive side facing up(See Figure4). 5. With a thin pin to turn the cover clockwise until the ” ” facing towards ” “(See Figure 5)
Note: The following schematic diagram of battery replacement is from the back of the thermometer.

After each battery replacement, the system enters the setting mode to set the unit and time.

Figure 2

Figure 3

Figure 4

Figure 5

CALIBRATION
The thermometer is initially calibrated at the time of manufacture. If the thermometer is used according to the use instruction, periodic readjustment is not required. However, we recommend checking calibration every two years or whenever clinical accuracy of the thermometer is in question. Turn on the thermometer and insert into the water bath and then check the laboratory accuracy of thermometer. Please send the complete device to the dealers or manufacturer. ASTM laboratory accuracy requirements in the display range of 98.6 to 102.2 °F(37.0 to 39.0 °C) for electronic thermometers is ±0.2°F(±0.1°C). The above recommendations do not supersede the legal requirements. The user must always comply with legal requirements for the control of the measurement, functionality, and accuracy of the device which are required by the scope of relevant laws, directives or ordinances where the device is used.

CLEANING AND DISINFECTION
1)Immerse the thermometer probe in distilled water for at least 1 minute; 2)Using a clean, soft cloth to wipe the thermometer down to remove any residue; 3)Repeat step 1 and 2 for three times until no soil is seen with visual inspection after cleaning; 4)For thoroughly clean and disinfection, please use method A or B
Method A(High level disinfection): immerse the thermometer probe in 0.55% OPA(O-Phthaldehyde), such as CIDEX OPA, for at least 12 minutes under temperature at 68(20); Method B(Low level disinfection): Using a clean soft cloth dipped in 70% medical alcohol,wipe the probe 3 times,at least one minute for each time. 5)Repeat step 1 to 3 to remove OPA residuals; Note1: Rectal use is not recommended for home use as OPA will not be readily available outside of a hospital. If rectal measurement is necessary, we strongly recommend high level disinfection. Note2: Please operate according to the manual of OPA for reference. To prevent damage to the thermometer please note and observe the following: -Do not use benzene, paint thinner, gasoline or other strong solvents to clean the thermometer. -Do not attempt to disinfect the sensing probe (tip) of the thermometer by immersing in alcohol, OPA or in hot water (water over 122(50) for long time. -Do not use ultrasonic washing to clean the thermometer.

FCC INFORMATION
FCC Warning: Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

124mm

LIMITED WARRANTY
The thermometer is guaranteed for one year from the date of purchase. If the thermometer does not function properly due to defective components or poor workmanship, we will repair or replace it free of charge. All components are covered by this warranty excluding the battery. The warranty does not cover damages to your thermometer due to improper handling. To obtain warranty service, an original or copy of the sales receipt from the original retailer is required. The software identifier refers to the Software validation Report document, and the file code is JYRJ201203004 the file version is A0.
Disposal of this product and used batteries should be carried out in accordance with the national regulations forthe disposal of electronic products.
JOYTECH Healthcare Co., Ltd. NO.502, Shunda Road, 311100 Hangzhou, Zhejiang Province, PEOPLE’s REPUBLIC OF CHINA

Made in China

Document No.: JDMT-9204-011 Article No.: 001 Version: Z
Date of Issue: 2023.07

320mm

124mm

320mm

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