ZDP323B Series Digital PIR Sensor

Product Specification

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PS041703-0324 - Preliminary

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17 Usage Restrictions and Precautions

This section presents restrictions and precautions that apply to Zilog pyroelectric sensors.

17.1 Design Restrictions and Precautions

If used for outdoor applications, be sure to use a suitable UV optical filter and drip-proof,

anti-dew construction. This sensor is designed for indoor use. In cases where secondary

accidents due to operational failure or malfunctions can be anticipated, add a failsafe

function to the design.

17.2 Usage Restrictions and Precautions

To ensure continued proper operation of the sensor, do not operate it under any of the

following conditions:

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Rapid environmental temperature changes

•

Strong shocks or vibrations

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In places where there are obstructing materials (glass, fog, etc.) through which infrared rays

cannot pass within the detection area

•

In fluids, corrosive gases, and sea breezes

•

Under continual high-humidity atmospheric conditions

•

Exposed to direct sunlight or automobile headlights without appropriate lens filter

•

Exposed directly to forced-air currents from a heater or air conditioner

17.3 Handling and Storage Restrictions and Precautions

To prevent sensor malfunctions, operational failure, appearance damage, or any

deterioration of its characteristics, do not expose the sensor to any of the following, or

similar, handling and storage conditions:

•

Strong shocks or continual vibrations

•

Static electricity or strong electromagnetic waves

•

High temperature and humidity over extended periods

•

Corrosive gases or sea breezes

•

Dirty and dusty environments that may contaminate the optical window

•

Ultrasonic cleaning

17.4 Assembly Restrictions and Precautions

Use soldering iron with controlled heat when soldering

•

Avoid extended durations of heat on the sensors’ pins. Exposure to excessive heat may

cause deterioration of the sensor performance (e.g., durations beyond 5 seconds at 350°C)