SUNSTAR D203S/D203B Pyroelectric Infrared Radial Sensor User Manual

About this manual

The document serves as a user guide for the SUNSTAR D203S and D203B models of universal dual-element pyroelectric infrared radial sensors. These devices utilize temperature change characteristics to detect infrared radiation, employing complementary dual elements to suppress interference from ambient temperature fluctuations and improve stability. This manual is written in Chinese.

What's inside

• Standard Specifications
• Test Method
• Typical Application Circuits
• Fresnel Lens Usage
• Usage Instructions
• Window Material Spectral Response

Specifications

Frequently asked questions

What are the recommended measurement conditions for testing the sensor?

The standard test conditions include an ambient temperature of 25 ºC, a black-body temperature of 420K (147 ˚C), and a chopping frequency of 1 Hz.

How is the sensitivity balance of a dual-element sensor calculated?

It is calculated by measuring the sensitivity of each element and using the formula: Balance = |VA-VB|/(VA+VB) ×100%.

What is the recommended soldering position for the sensor leads?

The leads on the sensor base are recommended to be soldered at a position of 4mm or more.