Truly Instrument Ltd. TET351 用户手册

  

Thank you for purchasing                
infrared ear thermometer. Please 
read through this manual before 
using the product.

● For babies below 
   12 months: Pull ear 
   smoothly backward. 
● For children above 
   12 months old and 
   adults: Pull ear 
   smoothly upward.  

How to pull the ear    

1. Probe
2. LCD display
3. Power/memory button
4. temperature mode button : ear or
    forehead
5.Measurement button
6. Battery cover

Normal body temperature range 
according to World Health 
Organization(WHO)

ear

Oral

Axillary

Rectal

35.8     - 38

 

o

C

 o

C

36.6     - 38

 

o

C

 

o

C

34.7     - 37.3

 

o

C

 o

C

35.5     - 37.5

 o

C

 

o

C

For measurement of body 
temperature through eardrum and 
forehead.

1.Do not drop or shock the unit.
2.Do not immerse the unit into water.
3.Keep the unit out of reach by 
   children.
4.If the unit does not function,contact 
   the dealer.
5.Consult doctor if the result of 
   measurement is out of normal 
   body temperature range.
6.Do not disassemble the unit. Open 
   the battery cover only when 
   replacing battery.
7.Dispose used battery according to 
   local recycling regulation.
8.The product function maybe reset 
   when it is subjected to electrostatic 
   discharge disturbance test. Just 
   follow the instruction described in 
   this manual to set the function 
   again for normal operation.
 

1.One second measure time.
2.LCD display for easy measurement 
   reading.
3.Backlight display.
4.Memory for 30 readings.
5.Auto power off.

Measuring the temperature of 
the eardrum and forehead with 
infrared.

Cautions                                   2

Special Features 

                2

Measurement Principle              2

Product Application                    3

Product Description                  3

Ear Measurement 

                3

Connect iOS device via Bluetooth    5

Correct Measurement Method   6

When the Measurement 
Result is Abnormal                     6

Memory Function 

                7

Unit (

o

C/

o

F

) Switch                      7

Replacing the Batteries             7

Cleaning and Care                  8

FCC Statement                          8

Product Specifications             10

Display Message 

              10

Contents

eardrum 

Ear canal

o

C

36.8

Lower 
measured 
temperature

eardrum

Ear canal

eardrum

Ear canal

2.For accurate 
   result, clean the 
   probe with 
   cotton bud 
   before measuring.

   

  

1.Ensure the probe is facing eardrum 
   in straight line. Otherwise, the 
   measured temperature will be lower 
   than the actual body temperature. 

1.Possible causes for high 
   temperature:
● After exercise, meal, or crying.
● Prolong is staying in high 
   temperature environment.
● Thermometer is taken out from low 
   temperature environment. Keep 
   the thermometer in room 
   temperature for at least 30 minutes  
   before using.
2.Possible causes for low 
   temperature:
● The probe is dirty.
● Just exposed in cold temperature 
   environment before taking 
   measurement.
● Forehead: The probe is not facing 
   forehead instraight.
● The thermometer is pulled out from 
   the ear before measurement 
   complete.
● The probe is not fitted snugly into 
   the ear canal.

● The probe is not facing the ear 
   drum or is not placed in a corretive
   position in the canal. See “Correct
   Measurement Method”.
● Excess ear wax build-up.
3.Temperatures measured from left 
   and right ears are different:
   There could be slight difference in  
   temperatures when taking from 
   both ears. Therefore, always take 
   the temperature from the same ear.

This thermometer is powered by 2 
AAA batteries. When the power is
low, the low battery signal is
displayed. To replace batteries:
1.Press and push the battery cover to 
   open it.

2.Remove the old batteries and 
   replace with new ones. Make sure 
   the batteries are 
   in right polarity 
   direction.
3.Close the battery 
   cover. 

 

Note:
To protect the environment, dispose of 
empty batteries at your retail store of at 
appropriate collection sites according 
to national or local regulations.  

This thermometer stores the last 30  
temperature readings.
● When power on,  press 
   power/memory button to recall first 
   reading.
● Repeat pressing power/memory 
   button to recall the next reading.
● Delete memory:
   Press both power/memory and 
   measurement buttons and hold for 3 
   seconds. The signal “Clr” displayed 
   and the memory will be deleted.

1.Use a soft, dry cloth to clean the 
   exterior of the thermometer.
2.Keep the thermometer away from 
   direct sunlight, dust and 
   contamination environment.
3.Store the thermometer in normal 
   room temperature, or within 
   10-40

o

C. 

     

Display 

message Situation

Solution 

Allow the 
thermometer remain 
in room temperature
(10-40  C) for 30 
minutes. 

Ambient temperature 
is out of operating 
range (10-40      

 

o

 

o

 C)

Sensor error

Contact the dealer.

Contact the dealer.

Temperature 
measured is higher 
than normal human
temperature range
(above 42.2     )

 

o

C

 

o

C

Check the measured 
object and take a 
new measure.

Temperature 
measured is lower 
than normal human 
temperature range 
(below 34    )  

Check the measured 
object and take a 
new measure.

Low battery              Replace batteries.

Memory error 

Measurement method  

34-42.2

 

o

C

Accuracy

+/-0.2

o

C

o

+/-0.3 C (ambient temp.

1 second
LCD display
Stores last 30 readings 

Auto power off

1 minute after not being 

used 

2 x AAA batteries 

Operating temperature   

-20~+55

 

o

C

Dimensions                     152 x 52 x 36 mm

66g 
(notincluding batteries) 

Infrared measurement

Measurement range

Measuring time             
Display
Memory 

Batteries

 

o

C

10-40

Storage temperature 

Weight

o

C

 

(ambient temp.16-35

    ) 

      o

   C, 35-40

                     o

    C)

10-16

This appliance conforms to the 
following standards:
EN60601-1: Medical electrical 
                    equipment  
                    Part 1: General 
                    requirements for safety
EN12470-5: Clinical thermometers  
                    Part 5: Performance of 
                    infrared ear thermometers 
                    (with maximum device)
93/42/EEC : Medical Device Directive
ASTM E 1965-98: Standard 
                              Specification for 
                              Infrared 
                              Thermometers for
                              Intermittent 
                              Determination of 
                              Patient Temperature

MODEL: TET-351

User Manual

Rev.00

While taking the 

   temperature, the screen indicates 
   and audible bips sound. As soon 
   as the probe is placed on the area 
   of the temple, release the button, 
   wait for the validation sound beep 
   before removing the thermometer.

4.Interval Between Measurements 
   If you need to take another 
   measurement, allow an interval of 
   8 seconds until the signal “

o

C (

o

F)” 

   flashes. If you press the 
   Measurement button within 8 
   seconds, the beep signal will be 
   sounded.
5.Turn off the thermometer
   ● Push Power/memory button until 
      the “OFF” signal is displayed.
   ● The thermometer will turn off 
      automatically without use for 1 
      minute.

2.

Start measuring Pull ear 

   smoothly to flatten ear canal and 
   place the probe facing eardrum in
   straight line. Press measurement 
   button until you hear the beep 
   signal.

Press the button           to 

          select the forehead mode.

3.Measurement result
   When the measurement is 
   complete, the temperature will be 
   displayed with backlight. 

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 device complies with Part 15 of 
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: The manufacturer is not 
responsible for any radio or TV 
interference caused by unauthorized 
modifications to this equipment. 
such modifications could void the 
user’s authority to operate this 
equipment.  

This equipment has been tested and 
found to comply with the limits for a 
Class B digital device, pursuant to 
part 15 of FCC Rules. These limits 
are designed to provide reasonable 
protection against harmful 
interference in a residential
installation. This equipment
generates 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  

1. Installation
Prior to first use, Download and install 
application to your iOS device. 
(Bluetooth 4.0 capabilities, 
e.g. iPhone 4S, iPhone 5, NewiPad
and iPadMini).
2. Open application, and then press 
    the Blood Pressure icon on 
    Measure screen. 

   

3. Press the “Enter” button.  

4. Press the “Thermometer” button.  

6. This thermometer stores the last  
    temperature readings:

5. When the measurement is 
    complete, the temperature will 
    display on Thermometer monitor & 
    save on iOS application screen. 

 o

C

1.Press Power/Memory button Ready 
   signal beep + All display           
   + last measurement result           
   + Ready display        The "     " 
   symbol is blinking.

When the product is in off state, 
press and hold "power/memory" 
button for 10 seconds until the 
display shows "

o

C" or "

o

F" altenately. 

Release the button when the display 
is showing your desired unit.

1

2

3

4

6

5