Pressure transmitters aid ISO14644-1 compliance

A new range of differential pressure transmitters offers a solution for meeting the ISO14644-1 standard for clean rooms and controlled environments.

In certain manufacturing and clinical environments, such as clean rooms, operating theatres or filling systems, lowest differential pressures must be sustained between the different rooms or zones, in order to avoid the inflow of contaminated air.

Continuous measurement and control of these low differential pressures is required and must be proven annually in order to comply with ISO14644-1.

Whereas conventional differential pressure transmitters require frequent recalibration, the new Testo 6341 and 6343 pressure transmitters are equipped with automatic zero point adjustment.

Solenoid valves then vent both sides of the pressure measurement cell in an hourly cycle.

Consequently the microprocessor automatically corrects the zero signal, resulting in the highest long-term stability.

The patented differential pressure cell in the new Testo 6340 transmitters is designed to resist friction and abrasion.

The transmitter features a membrane with high mechanical stability, which results in a highly precise differential pressure signal.

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