HDA 8700 Pressure Transmitters for applications with increased functional safety

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This version of the pressure transmitter series HDA 4700 has been specially developed for use in safety circuits / safety functions as part of the functional safety of machinery and equipment up to PL d - Cat 3 (in accordance with ISO 13849).

The pressure transmitters are designed with two channels. Each channel consists of a sensor element and evaluation electronics. As a result, the pressure transmitter develops two separate and independent output signals in proportion to the pressure.

The safety function is tested by evaluating and comparing the two analogue output signals in a higher level system.

The main areas of application are as sensor elements in mobile, safety oriented systems such as load torque displays or load torque limitation in truck-mounted cranes or working platforms.

Special features:

• Two-channel, redundant pressure measurement
• Two separate, independent output signals
• Accuracy ≤ ± 0.25 % FS typ.
• Highly robust sensor cell
• Outstanding performance in terms of temperature effect and EMC
• Small, compact design
• PL d, Cat. 3 certification