The Testo 6340 series differential pressure transmitters are an excellent choice for cleanrooms, operating rooms or any environment where low differential pressures must be maintained to avoid in-flow of potentially contaminated air. Conventional differential pressure transmitters require frequent and costly recalibration to ensure accuracy. The Testo 6340 series differential pressure transmitters (Model 6341/6343 only) are equipped with automatic zero point adjustment, eliminating the need for frequent calibration. The solenoid valves vent both sides of the pressure measurement cell in an hourly cycle. Consquently the microprocessor automatically corrects the zero signal resulting in high stability.
The Testo 6341 differential pressure transmitter features zero-point drift, high long-term stability and reproducibility, no temperature dependency (automatic zeroing is performed at process temperature) and is overload-proof. If greater than 140% of the measurement range is applied, the solenoid valves close and the cell and vented on both sides. The Testo 6341 is available with an optional display which is ordered as the Testo 6343.
The Testo 6342 differential pressure transmitter features very low zero-point drift as well as very good long-term stability and reproducibility from the optimized measurement cell. The Testo 6342 has a very low temperature dependency and is available with an optional display which is ordered as the Testo 6344.
|Feature||Testo 6341/6343||Testo 6342/6344|
|Display||6343 only||6344 only|
|Measuring Range||0 to 10 Pa
0 to 1 mbar
0 to 04 inch H2O
|0 to 50 Pa
0 to 5 mbar
0 to 02 inch H2O
|Usable Measurement Range||-5% to 110% of fsv||-5% to 105% of fsv|
|Measuring Medium||Air, non-aggressive gases||Air, non-aggressive gases|
|Housing (ABS plastic)||6341: 120x122x85mm
|Overload||200 times (above 25 mbar: 6 bar)||10 times (above 200 mbar: 2 times)|
|Zero Point Drift||None (automatic zero point adjustment)||0.5% of full scale value/year|
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