Differential pressure transducer testo 6381 angled

testo 6381 – for cleanrooms and hygiene zones

For cleanroom applications and different hygiene zones in e.g. hospitals.

  • Zero in zero-point operation thanks to automatic zeroing
  • Effective overpressure protection
  • Measures very low differential pressures (minimum measuring range 0...10 Pa)

Delivery time: 5-10 working days

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Delivery time: 5-10 working days

SKU: 0555 6381 Categories: , , ,

The testo 6381 transmitter series is specially designed for cleanroom applications and various hygiene zones in hospitals, for example. Maintaining an overpressure prevents pollutants from entering sensitive areas. It is also possible to connect external wall or duct sensors for measuring moisture values. If necessary, it is also possible to calculate air flows by measuring the differential pressure in a pitot tube (prandtl tube).

The testo 6381 is one of the most accurate instruments and there are 18 different measurement ranges to choose from when ordering, from 0 … 10 Pa up to -1,000 … 1,000 hPa. Thanks to the automatic zeroing, there is no zero point drift. This transmitter also has no temperature dependency as zeroing is done at the process temperature. It also has a very good overpressure protection of 140% of the measuring range, as well as alarm management with adjustable response time and alarm acknowledgement.

  • Zero in zero-point operation thanks to automatic zeroing
  • Effective overpressure protection
  • Measures very low differential pressures (minimum measuring range 0…10 Pa)
  • High long-term stability and repeatability
  • Display (optional)
  • Temperature and humidity sensors (optional)
  • Can also be delivered with other print areas, call for more info.

Contact us for prices and more information

Measurement ranges0 ... 10 Pa
0 ... 50 Pa
0 ... 100 Pa
0 ... 500 Pa
0 ... 10 hPa
0 ... 50 hPa
0 ... 100 hPa
0 ... 500 hPa
0 ... 1000 hPa
-10 ... 10 Pa
-50 ... 50 Pa
-100 ... 100 Pa
-500 ... 500 Pa
-10 ...10 hPa
-50 ... 50 hPa
-100 ... 100 hPa
-500 ... 500 hPa
-1000 ... 1000 hPa
Measurement uncertainty±0.5% of the measuring range final value ±0.3
Zero drift: 0% (thanks to regular zero adjustment)
Units of measurementDifferential pressure in Pa, hPa, kPa, mbar, bar, mmH2O, kg/cm2, PSI, inch HG, inch H2O
Calculated parameters: air flow in m3/h, l/min, Nm3/h, Nl/min

Airspeed in m/s, ft/min
SensorPiezoresistive sensor
Automatic zero point adjustmentVia solenoid valve
Adjustable interval: 15 sec, 30 sec, 1 min, 5 min, 10 min
Measurement accuracy0.35 Pa +0.5% of the measuring range
(0.3 Pa = measurement uncertainty of reference)
OverloadDepending on the measurement range, see PDF
ANALOG OUTPUTS
QuantityDefault: 1.
With humidifier as an option: 3
Output type0/4 … 20 mA (4-wire) (24 VAC/DC)
0 … 1/5/10 V (4-wire) (24 VAC/DC)
ScaleDifference pressure scale ±50% of the final value of the measuring range.
Freely scalable within the measurement range.
Measurement interval1/sec
Resolution12 pieces
Max load500 ohms
OTHER OUTPUTS
EthernetOptional
RelayOptional: 4 relays (can be freely assigned to measurement channels or used as a common alarm in the function menu / P2A), up to 250 VAC/3A (NO or NC)
DigitalMini-DIN for P2A software
POWER SUPPLY
Voltage supply20 … 30 VAC/DC, 300 mA current consumption, signal and supply galvanically separated

Moisture probes

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Datablad testo 6381
523 downloads194.14 KB
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Broschyr testo 6351-6381
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