Scheme introduction:
1. Introduction to infrared forehead temperature gun scheme
The ZHW3548 is a high-performance and low-power infrared forehead gun scheme, with simple peripheral circuits,
The temperature measurement range is 0~100 ℃, and the temperature measurement accuracy is ± 0.2 ℃ (32.0 ℃~42.0 ℃)
The EEPROM data can be adjusted to match different sensors and molds to achieve the effect
FSY01IR2 has two buttons, buzzer and two-color backlight indication
Double blackbody calibration, high production efficiency
2. Characteristics
Temperature measurement range: 0~100 ℃
Response time: 1S
Accuracy: ± 0.2 ℃
Resolution: 0.1 degree
C/F temperature unit conversion
Automatic shutdown after 10 seconds without operation (EEPROM can be set)
Low voltage indication (lower than 2.4V) 3V battery
At the same time, it can be matched with various infrared temperature sensors. The commonly used models are German Hyman
HMSJ11,J11,HMSA11,HMSZ11,TPS334(3161); Taiwan Zhongzhi OTP-
668D2,OTP-668D4,OTP-667F4P,OTP-538U,OTP-537F2。
3. Calibration process
Press the ON/OFF key to install the battery, enter the calibration mode, and display the ambient temperature
Press the MEAS key briefly, the flashing display is 25.0 ℃, and the calibration is 25 ℃
The sensor is aligned with the 25 ℃ blackbody, press the MEAS key briefly, and stop flashing at 25.0 ℃
After calibration, the buzzer gives a short sound, flashes 42.0 ℃, and calibrates 42 ℃
The sensor is aligned with 42 ℃ blackbody, press the MEAS key briefly, and 42.0 ℃ stops flashing,
After the correction, measure the actual temperature in real time, and turn off the machine with the ON/OFF key
Performance parameters:
Industry classification: software development
Delivery form: PCBA
Performance parameters: Origin: Shenzhen
Application scenario: electronic product scheme