Differential pressure transmitter with humidity/temperature option Measurement of differential pressure, flow velocity, volume flow; optional: humidity and temperature Automatic zero-point adjustment guarantees high, temperature-independent accuracy and long-term Low measurement range up to 10 Pa ensures very high precision at lowest pressures The robust metal housing protects from tough ambient conditions Display with multi-language operating menu and optical alarm display Ethernet, relay and analog outputs allow optimum integration into individual automation systems Self-monitoring of the transmitter and early warning function guarantee high system availablity The P2A software for parameterization, adjustment and analysis saves time and costs in Scalability of ±50 percent of the measuring range final value and free scalability within the measuring Configurable alarm management with adjustable response delay and alarm acknowledgement The differential pressure transmitter testo 6381 was developed specially for monitoring differential pressure in the measuring range from 10 Pa to 1000 hPa. In cleanroom technology, the maintenance of positive pressure prevents the entry of contaminated air. In order to keep the cleanroom conditions constant, the transmitter additionally calculates the parameters volume flow and flow velocity from the measured differential pressure. Thanks to an optional probe from the probe series 6610, the additional recording of humidity and temperature with one instrument is also possible. The testo 6381 is particularly outstanding thanks to the automatioc zero-point adjustment which ensures high accuracy and long-term stability. The integrated self-monitoring and early warning function also guarantees the operator high system • Differential pressure monitoring between cleanrooms; optional: simultaneous measurement of ambient temperature and humidity Monitoring drying processes • Differential pressure measurement in filling processes and spray-painting systems

Differential pressure transmitter with humidity/temperature option Technical data Differential pressure Measuring range Selectable units Autom. Zero-point ±0,5% of measurement range final Temperature gain drift: 0.02% of measuring range per Kelvin devlaton from nominal temperature 22 °C Zero-point: 0% (thanks to cyclic zero- polnt adjustment) calculated parameters: volume flow In Flow velocity In m/s, ft/mln Plezoreslstlve sensor Measuring range * The determination of measurement uncertainty takes place according to GUM (Guide to the Expression of Uncertainty in Measurement): For the determination...

Differential pressure transmitter with humidity/temperature option Technical data General technical data Technical drawings Differential pressure Protection class Connection nipple Metal housing multi-language operating menu Measuring range Connection plan Subject to change without notice.

Differential pressure transmitter with humidity/temperature option The following options can be specified for the testo 6381 : CXX Display / menu language_ D01 Cable input M16 (relay: M20) D03 Cable contact via M-plug connection for signal without Ethernet module with Ethernet module Order code for transmitter testo 6381 with - Without display - Cable contact via M-plug connection for - with Ethernet module - Differential pressure mbar / min / max - Opt. analog output for humidity probe connection testo 6610/ units g/kg / min / - Without relay FXX Differential pressure/flow velocity unit measuring...