Pressure sensors

Barometric pressure transmitters for SMT

ASB series

Preliminary data

AS SEN PD

2011-05-02

Please read Cautions and warnings and

Page 15 of 16

Important notes at the end of this document

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Cautions and warnings

Storage

The pressure sensors should be stored in their original packaging. They should not be placed in harmful

environments such as corrosive gases nor exposed to heat or direct sunlight, which may cause deformations.

Similar effects may result from extreme storage temperatures and climatic conditions.

Avoid storing the pressure sensors in an environment where condensation may form or in a location exposed to

corrosive gases, which will adversely affect their performance.

Soldering

The thermal capacity of the pressure sensor is normally low, so steps should be taken to minimize the effects of

external heat. High temperatures may lead to damage or changes in characteristics.

A no-clean flux should normally be used. Flux removal processes are not recommended.

Avoid rapid cooling due to dipping in solvent. Note that the output signal may change if pressure is applied to

the terminals during soldering.

Operation

Media compatibility with the pressure sensors must be ensured to prevent their failure (see page 2).

The use of other media can cause damage and malfunction.

Never use them in atmospheres containing explosive liquids or gases.

Ensure pressure equalization to the environment, if relative pressure sensors are used.

Avoid operating the pressure sensors in an environment where condensation may form or in a location exposed

to corrosive gases. These environments adversely affect their performance.

If the operating pressure is not within the rated pressure range, it may change the output characteristics.

Be sure that the applicable pressure does not exceed the overpressure, it may damage the pressure sensor.

Do not exceed the maximum rated supply voltage, it may damage the pressure sensor.

Do not exceed the rated storage temperature range, it may damage the pressure sensor.

Temperature variations in both the ambient conditions and the media (liquid or gas) can affect the accuracy of

the output signal from the pressure sensors. Be sure to check the operating temperature range and thermal

error specification of the pressure sensors to determine their suitability for the application.

Connections must be wired in accordance with the terminal assignment specified in this publication.

Care should be taken as reversed pin connections can damage the pressure sensors or degrade their

performance.

Contact between the pressure sensor terminals and metals or other materials may cause errors in the output

characteristics.

This listing does not claim to be complete, but merely reflects the experience of EPCOS AG.