VAISALA PTB330 デジタル気圧計
Measurement performance
Barometric pressure range 500 ~ 1100 hPA
Linearity: ±0.05 hPa (Class A)
Hysteresis: ±0.03 hPa (Class A)
Repeatability: ±0.03 hPa(Class A)
Calibration uncertainty: ±0.07 hPa(Class A)
Accuracy at +20 °C (+68 °F): ±0.10 hPa(Class A)
Temperature dependence
500 ~ 1100 hPa, ±0.1 hPa (Class A)
50 ~ 1100 hPa ±0.3 hPa (Class A)
Total accuracy −40 ~ +60 °C (−40 ~ +140 °F)
500 ~ 1100 hPa: ±0.15 hPa (Class A)
Long-term stability
500 ~ 1100 hPa: ±0.1 hPa/year (Class A)
50 ~ 1100 hPa: ±0.2 hPa/year (Class A)
Miscellaneous
Pressure units: hPa, mbar, kPa, Pa inHg, mmH20, mmHg, torr, psia (Class A)
Resolution: 0.01 hPa (Class A)
Settling time at startup (1 sensor): 4 s (Class A)
Response time (1 sensor): 2 s(Class A)
Inputs and outputs
Supply voltage: 10 ~ 35 V DC
Supply voltage sensitivity: Negligible
Typical power consumption at +20 °C (+68 °F) (voltage at 24 V DC with 1 pressure sensor):
RS‑232: 25 mA
RS‑485: 40 mA
Output voltage Uout: 25 mA
Output current Iout: 40 mA
Display and backlight: +20 mA
Serial communication: RS-232, RS‑485, RS‑422
Analog output (optional)
Current output: 0 ~ 20 mA, 4 ~ 20 mA
Voltage output: 0 ~ 1 V, 0 ~ 5 V, 0 ~ 10 V
Accuracy at pressure range
500 ~ 1100 hPa/ 50 ~ 1100 hPa
At +20 °C (+68 °F): ±0.30 hPa/ ±0.40 hPa
At −40 … +60 °C(−40 … 140 °F): ±0.60 hPa/ ±0.75 hPa
Operating environment
Pressure range: 500 ~ 1100 hPa, 50 ~ 1100 hPa
Operating temperature: −40 ~ +60 °C (−40 ~ +140 °F)
Operating temperature with local display: 0 ~ +60 °C (+32 ~ +140 °F)
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