The Testo 6321 differential pressure transmitter provides excellent performance at an affordable price for automated air
conditioning and ventilation applications. Because automated building processes necessitate precision monitoring, heavy
demands are placed on the monitoring equipment. The Testo 6321 differential pressure transmitter fulfills these requirements
by ensuring excellent system functionality. When climate conditions are optimized by highly accurate measurement systems and
creating long-term differential pressure stability, the result is energy savings.
Like all Testo transmitters,
the Testo 6321 differential pressure transmitter features P2A software. The analysis
tools incorporated in the software test analog and relay signals and display min/max values. The transmitter software
also includes an operational hour counter which means reports are stored with a time/date stamp to provide a history of
error events.
| Differential Pressure Parameters | ||
|---|---|---|
| Measuring Range | 0 to 100 Pa 0 to 10 hPa 0 to 50 hPa 0 to 100 hPa 0 to 500 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 |
| Measurement Uncertainty | ±1.2% of measurement range final value ±0.3 Pa. Temperature gain drift: 0.05% of measuring range per Kelvin deviation from nominal temperature 22°C Zero-point drift: 0% (due to zero-point adjustment. |
|
| Sensor | Piezoresistive sensor | |
| Auto. zero-point adjustment | via magnetic valve | |
| Overload capacity | 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 |
Overload: 20000 Pa 200 hPa 200 hPa 750 hPa 750 hPa 2500 hPa 2500 hPa 2500 hPa 20000 Pa 200 hPa 200 hPa 750 hPa 750 hPa 2500 hPa 2500 hPa 2500 hPa |
| Analog Outputs | ||
| Output type |
0 to 1/5/10 V (4-wire) 4 to 20 mA (4-wire) |
|
| Measuring rate | 1/s | |
| Resolution | 12 bit | |
| 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 |
|
| Max load | 500 Ω | |
| Further Outputs | ||
| Other analog outptus | Min in DIN for P2A software (adjustment and parameterization software) | |
| Supply | ||
| Voltage supply | 20 to 30 V AC/DC | |
| Current consumption | 30 mA | |
