Differential Pressure Transmitters
Delivery Scope
Testo 6321 differential pressure transmitter with selectable measuring range between 100 Pa and 2,000 hPa, selectable signal outputs and optional display (depending on the configuration)
Measuring and control technology also ensures efficiency in air conditioning and ventilation technology: the testo 6321 high-precision pressure transmitter for measuring differential pressure has long-term stability and helps you to monitor and control processes in air conditioning, ventilation and cleanroom technology in a reliable and efficient way
- Pressure transmitter for measuring differential pressure in the 100 Pa to 2 bar measuring range
- Magnetic valve for automatic zero-point adjustment guarantees high temperature independent accuracy and long-term stability
- Alignment and analysis save time and costs for commissioning and maintenance
- Available with and without display
With the testo 6321 you get a differential pressure transmitter with a good price-performance ratio for applications in air conditioning and ventilation technology. Automated building services need more and more accurate monitoring, which also means increasing requirements for measuring and control technology. The testo 6321 transmitter for differential pressure meets these requirements through high-precision measurement of differential pressure with long-term stability. It helps you to ensure optimum system function, to optimize climate conditions and to save energy.
testo 6321 differential pressure transmitter - the applications
- Industrial and commercial buildings, e. g. in production and storage
- Office and administration buildings
- Sales areas and exhibition halls
- Museums and libraries
- School buildings, hotels, clinics, etc.
| Differential Pressure | |
|---|---|
| Measuring range | 0 to 100 Pa, 0 to 10 hPa, 0 to 20 hPa, 0 to 50 hPa, 0 to 100 hPa, 0 to 500 hPa, 0 to 1000 hPa, 0 to 2000 hPa, -100 to 100 Pa, -10 to 10 hPa, -20 to 20 hPa, -50 to 50 hPa, -100 to 100 hPa, -500 to 500 hPa, -1000 to 1000 hPa, -2000 to 2000 hPa |
| Sensor | Piezoresistive sensor |
| Analog outputs | |
| Output type | 0 to 1/5/10 V (4-wire), 4 to 20 mA (4-wire) |
| Measuring rate | 1/s |
| Accuracy of the analog outputs | 0 to 1 V ±2.5 mV, 0 to 5 V ±12.5 mV, 0 to 10 V ±25 mV, 4 to 20 mA ±0.05 mA |
| Power supply | 20 to 30 V AC/DC |
| Display | 2-line LCD (optional) |
| Protection class | IP65 |
Datasheet Download
Delivery Scope
Testo 6351 differential pressure transmitter depending on the chosen configuration
Differential pressure transmitters with high accuracy and long-term stability
- Automatic zero-point adjustment guarantees high temperature-independent accuracy and long-term stability
- Low measuring range down to 50 Pa ensures very high precision at the lowest pressures
- Measurement of differential pressure, flow velocity and volume flow
- Configurable alarm management with adjustable response delay and alarm acknowledgement
The differential pressure transmitter testo 6351 was developed specially for monitoring differential pressure in the measuring range from 50 Pa to 2000 hPa. In cleanroom technology, the maintenance of positive pressure prevents the entry of contaminated air. In addition to this, the flow velocity or the volume flow can be calculated from the measurement of the differential pressure in a Pitot tube.
The testo 6351 is particularly outstanding thanks to the automatic 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 availability. Measurement of differential pressure, flow velocity and volume flow. Automatic zero-point adjustment guarantees high, temperature-independent accuracy and long-term stability. Display with multi-language operating menu and optical alarm display Ethernet, relay and analog outputs allow optimum integration into individual automation systems. The P2A software for parameterization, adjustment and analysis saves time and costs in commissioning and maintenance.
Configurable alarm management with adjustable response delay and alarm acknowledgement
| Differential Pressure | |
|---|---|
| Measuring range | 0 to 50 Pa, 0 to 100 Pa, 0 to 500 Pa, 0 to 10 hPa, 0 to 50 hPa, 0 to 100 hPa, 0 to 500 hPa, 0 to 1000 hPa, 0 to 2000 hPa, -50 to 50 Pa, -100 to 100 Pa, -500 to 500 Pa, -10 to 10 hPa, -50 to 50 hPa, -100 to 100 hPa, -500 to 500 hPa, -1000 to 1000 hPa, -200 |
| Selectable units | Differential pressure in Pa, hPa, kPa, mbar, bar, mmH2O, kg/cm2, PSI, inch HG, inch H2O Calculated variables: Volume flow in m3/h, l/ min, Nm3/h, Nl/min Flow velocity in m/s, ft/min |
| Sensor | Piezoresistive sensor |
| Analog outputs | |
| Output type | 0/4 to 20 mA (4-wire) (24 VAC/DC) 0 to 1/5/10 V (4-wire) (24 VAC/DC) |
| Meas. cycle | 1/sec |
| Other outputs | |
| Ethernet | Optional with Ethernet module |
| Relay | Optional: 4 relays (free allocation to measurement channel or as collective alarm in operating menu/P2A), up to 250 VAC/3A (NO or NC) |
| Voltage supply | 20 to 30 VAC/DC, 300 mA current consumption, galvanically separate signal and supply line |
| General technical data | |
| Material | Plastic housing |
| Display | Optional: 3-line LCD with multi-language operating menu |
| Protection class | IP 65 |
Delivery Scope
Testo 6381 differential pressure transmitter with flow calculation, optional humidity/temperature, selectable measuring range between 10 Pa and 1,000 hPa, selectable signal outputs and optional display (depending on the configuration)
Differential pressure transmitter with humidity/temperature option
- Automatic zero-point adjustment guarantees high temperature-independent accuracy and long-term stability
- Low measuring range from 10 Pa ensures very high precision at the lowest pressures
- Pressure transmitter for differential pressure, flow velocity and volume flow, as an option: humidity and temperature
- 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 addition to this, the flow velocity or the volume flow can be calculated from the measurement of the differential pressure in a Pitot tube. 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 availability.
Measurement of differential pressure, flow velocity, volume flow; optional: humidity and temperature
Automatic zero-point adjustment guarantees high, temperature-independent accuracy and long-term stability. Low measurement range up to 10 Pa ensures very high precision at lowest pressures
Ethernet, relay and analog outputs allow optimum integration into individual automation systems
The P2A software for parameterization, adjustment and analysis saves time and costs in commissioning and maintenance. Configurable alarm management with adjustable response delay and alarm acknowledgement
| Differential pressure | |
|---|---|
| Measuring range | 0 to 10 Pa, 0 to 50 Pa, 0 to 100 Pa, 0 to 500 Pa, 0 to 10 hPa, 0 to 50 hPa, 0 to 100 hPa, 0 to 500 hPa, 0 to 1000 hPa, -10 to 10 Pa, -50 to 50 Pa, -100 to 100 Pa, -500 to 500 Pa, -10 to 10 hPa, -50 to 50 hPa, -100 to 100 hPa, -500 to 500 hPa, -1000 to 100 |
| Selectable units | Differential pressure in Pa, hPa, kPa, mbar, bar, mmH2O, kg/cm2, PSI, inch HG, inch H2O calculated parameters: volume flow in m3/h, l/min, Nm3/h, Nl/min Flow velocity in m/s, ft/min |
| Sensor | Piezoresistive sensor |
| Humidity/temperature -- optional | |
| Probe --- testo 6611 | Type -- Wall |
| Probe --- testo 6612 | Type -- Channel |
| Probe --- testo 6613 | Type -- Channel |
| Probe --- testo 6614 | Type -- Duct heated |
| Probe --- testo 6615 | Type -- Cable trace humidity |
| Probe --- testo 6617 | Type -- Cable with cover electrode monitoring |
| Parameters | %RH / °C/°F / °Ctd / °Ftd / g/kg / gr/lb / g/m3 / gr/ft³ / ppmV / °Cwb / °Fwb / kJ/kg / mbar / inch H2O / °Ctm (H2O2)/°Ftm (H2O2) / % Vol |
| Measuring Range -- Humidity/trace humidity | 0 to 100 %RH (For testo 6611, 6612, 6613, 6614), -60 to +30 °C td (For testo 6615), 0 to 100 %RH (For testo 6617) |
| Measuring Range - Temperature | -20 to +70 °C -4 to +158 °F (For testo 6611), -30 to +150 °C -22 to +302 °F (For testo 6612), -40 to +180 °C -40 to +356 °F (For testo 6613, 6614), -40 to +120 °C -40 to +248 °F (For testo 6615), -40 to +180 °C -40 to +356 °F (For testo 6617) |
Delivery Scope
Testo 6383 differential pressure transmitter with cleanroom-compliant panel design, optional humidity/temperature recording, selectable measuring range between 10 Pa and 10 hPa, selectable signal outputs and optional display (depending on the configuration)
The differential pressure transmitter testo 6383 was developed specially for monitoring low differential pressures in the measuring range from 10 Pa to 10 hPa. In cleanroom technology, the maintenance of positive pressure prevents the entry of contaminated air in critical zones. Thanks to an optional internal or external probe from the probe series 6610, the additional recording of humidity and temperature with one instrument is also possible
- Flat housing enables flush surface integration in the cleanroom wall
- Low measuring range from 10 Pa ensures very high precision at the lowest pressures
- Pressure transmitter for measuring differential pressure, as an option: humidity and temperature
- Automatic zero-point adjustment guarantees high temperature-independent accuracy and long-term stability
The differential pressure transmitter testo 6383 was developed specially for monitoring low differential pressures in the measuring range from 10 Pa to 10 hPa. In cleanroom technology, the maintenance of positive pressure prevents the entry of contaminated air in critical zones. Thanks to an optional internal or external probe from the probe series 6610, the additional recording of humidity and temperature with one instrument is also possible.The testo 6383 is particularly outstanding thanks to the automatic 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 availability. Measurement of differential pressure; optional: humidity and temperature.
Flat housing allows flush surface integration in the cleanroom wall.
Ethernet, relay and analog outputs allow optimum integration into individual automation systems.
Self-monitoring of the transmitter and early warning function guarantee high system availability.
The P2A software for parameterization, adjustment and analysis saves time and costs in commissioning and maintenance. Configurable alarm management with adjustable response delay and alarm acknowledgement
| Differential Pressure | |
|---|---|
| Measuring range | 0 to 10 Pa, 0 to 50 Pa, 0 to 100 Pa, 0 to 500 Pa, 0 to 10 hPa, -10 to +10 Pa, -50 to +50 Pa, -100 to +100 Pa, -500 to +500 Pa, -10 to +10 hPa |
| Measurement uncertainty | ±0.3% of measurement range final value, ±0.3 Pa |
| Selectable units | Differential pressure in Pa, hPa, kPa, mbar, bar, mmH2O, kg/cm2, PSI, inch HG, inch H2O |
| Sensor | Piezoresistive sensor |
| Humidity/temperature optional | |
| Output type | 0/4 to 20 mA (4-wire) (24 VAC/DC), 0 to 1/5 to 10 V (4-wire) (24 VAC/DC) |
| Meas. cycle | 1/sec |
| Voltage supply | 20 to 30 VAC/DC, 300 mA current consumption, galvanically separate signal and supply line |
| General technical data | |
| Material | Front plate stainless steel, housing plastic |
| Dimensions | without humidity/temperature: 246 x 161 x 47 mm with humidity/temperature: 396 x 161 x 78 mm |
| Display | optional: 3-line LCD with multi-language operating menu |
| Protection class | IP65 |
