New industrial and hygienic pressure transmitter

Bourdon Haenni, a manufacturer of high technology industrial instrumentation, has introduced the hermetically sealed ASIC Technology ED701 piezo-resistive pressure transmitter.

Manufactured totally in stainless steel, the new high specification units include zero setting and active temperature compensation as standard.

Featuring hermetically sealed ASIC technology, the current range features pressures from 100mbar to 40bar gauge and 400mbar to 40bar absolute pressure.

The piezo-resistive silicon sensor gives extremely high levels of stability and repeatability across the entire pressure range, with the active temperature compensation from -10 to +80C, accuracies of 0.1% can be obtained.

Typical values are 0.05% full scale for combined hysteresis and repeatability and 0.2% per year for stability.

With a response time of 25msec, these transmitters have been designed for both the industrial and hygienic markets.

With 16 process connections and 9 electrical connections available as standard, the units have environmental protections from IP65 to IP67 and approvals from the FDA, 3A and EHEDG.

Standard electrical outputs are available as 4-20mA, 0-10Vdc or 0-5Vdc.

As an additional feature, the ED701 can be supplied with a G1/2 flush diaphragm fitting which is compatible with the CombiConnect series of process fittings from Bourdon-Haenni, giving a simple solution to stocking for differing process connections on plant.

Higher pressure ranges to 600bar are planned for 2003 as well as an expansion of the process connection range.

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