background image

ST-1090

Temperature tester user manual

Specification:

Model
Resolution
Temperature range
Accuracy Temperature
Sensing wire
Display
Power

0-800℃/32-1500℉
±5℃/±9℉
K-type thermocouple
LCD
9V DC High-performance carbon battery

0℃~40℃/32℉~104℉

185g

Operating environment

75x143.5x41.5mm

Size
Weight

ST-1090
1℃/1℉

External sensor interface

POWER MAX HOLD  SEND 

RESET 

ST

-1090

Terminal

Putter

Ring gasket

Push button

LCD Screen

Infrared 

transmitter 

tube

USB interface (convert serial communication, 

the computer needs to install the CH340 chip driver)

Power

Temperature 

point

Sensor

LCD Show

Package list

Instructions 

1. Open the battery cover on the back of the instrument, insert the battery and close the back cover. Please 

     pay attention to the correct connection of the battery when inserting the battery.

2. Put the sensor into the putter and terminal (red edge into the red terminal, blue into the blue terminal).

3. Press the power and check the display screen. When the display shows room temperature, you can perform 

     operation or measurement.

4. The soldering iron tip sticks the flux to the test point, and the temperature will be displayed within 2 seconds.

5. After use, press and hold the power button to shut down.

① Negative characters                     

②  Infrared IR function characters           

③ Serial port function characters                                  

④ CAL function character                  

⑤ Characters of maximum temperature 

      hold function                          

     

Precautions

1. The sensor is made of very thin (φ0.2mm) metal wire. It should be used with care and not bend or break.

2. The housing of the thermometer is made of plastic. Do not touch the tip of the soldering iron.

3. The sensor is a consumable item (life of about 50-60 times), long time use, the alloy layer is worn out, the 

     measurement will be inaccurate, and need to be replaced New sensor.

4. Alcohol can be used to clean the flux attached to the terminal. Do not use thinner or volatile oil.

5. If the display shows -1, it means that the temperature sensor has been scrapped (or no sensor is installed) 

     and a new one needs to be replaced.

6. If it displays         , it means the battery is low, and the temperature cannot be measured normally, and the 

     battery needs to be replaced. It is recommended remove the battery if not to use it for a long time .

7. The 191-212 temperature sensor is only suitable for measuring the temperature below 500℃, such as 

     measuring higher temperature, please use the appropriate Temperature probe.

8. Do not blow the hot air gun directly to the ST-1090  for measurement. Blowing directly will damage the 

     ST-1090 host.

Note: Thermocouple and external temperature sensing wire cannot be used at the same time.

Host ST-1090:1

Battery: 1

K-type thermocouple test wire:1

Sensor : 10 

MINI USB data line 1

Operation guide

一.Switch function

Short press the "POWER" button to turn on, the display shows the room temperature when turning on; 

you need to long press the "POWER" button to turn off.

七.Automatic shutdown function

Figure7-1

When the thermometer is not in use, it enters the shutdown countdown until the set shutdown time 

(default 15 minutes, can be set), the thermometer automatic shut-down.

Long press the "MAX HOLD" key to enter Figure 7-1, the "POWER" key shortens the time, and the "SEND" 

key extends the time (time setting range 1~240 minutes). After the setting is completed, long press 

the "MAX HOLD" button to exit and return to the working interface.

OFF

八.Temperature unit switch setting interface

Long press the "MAX HOLD" key to enter Figure 7-1, press the "MAX HLOD" key again to enter Figure 8-1, 

and press the "SEND" key.Switch ℃/℉; after switching, press and hold the "MAX HOLD" key to exit and return 

to the working interface.

Figure8-1

c-f

- c -

Figure8-2

c-f

- f -

二.The highest temperature to maintain the interface

Short press the "MAX HOLD" key to open the maximum temperature hold interface, as shown in Figure 3-1, 

short press again to close and return to the working interface.

Figure3-1

088

3 8 0

088

0 2 5

000

0 2 5

三.The display interface of the number of times the sensor wire is used

Each time the temperature is tested, the upper right display area of  the main window will increase the 

number of times, up to 999 times, long press "RESET"The combination key can be reset to zero times. 

(When used 50 times, it flashes to prompt to replace the sensing wire)

六.The sensor wire is damaged or there is no sensor wire display interface

Figure4-1

Figure4-2   (Serial communication baud rate 9600)

000

3 5 0

四.IR and serial port use display interface

IR

000

3 5 0

COM

After testing the temperature, short press the SEND key to send the data, the IR 

character will be displayed as shown in Figure 4-1 (support ST-3150 soldering station)

The serial port data line is connected to the thermometer and the computer, the thermometer displays COM 

as shown in Figure 4-2; the thermometer sends to the computer every 100ms temperature data.

000

0 2 5

五.Low battery display interface

When the battery power is low, the low battery symbol is displayed in the upper left corner, prompting that 

the battery needs to be replaced as soon as possible to avoid affecting the use (Low battery temperature 

measurement is not accurate).

1

2

3

4

⑥ Temperature unit Fahrenheit

⑦  Temperature unit Celsius

⑧  Counting function display

⑨ Main window display: display temperature 

      and other data

⑩ Battery voltage is low symbol

MAX HOLD

 When installing the sensor, insert the sensor into 

the putter and terminal(The red edge is inserted 

into the red terminal, and the blue is inserted into 

the blue terminal)

IR COM

88


MAX HOLD

8

CAL

I888

② ③

④ 

⑤ 

⑥ 

⑦ 

Note:convert serial 

communication, the computer 

needs to install the CH340 chip 

driver

Download ATTEN serial port 

assistant from the official 

website(You can also use 

other serial port assistants)

ATTEN serial port assistant

Отзывы: