PTB330 specifications - APA501 - PTB330

Vaisala AviMet Pressure Altimeter System System Description

Document code
DOC232783EN
Revision
D
Language
English
Product
APA501
Document type
Technical description
Table 1. PTB330 measurement performance
Property Description/Value (Class A) Description/Value (Class B)
Barometric pressure range 500 … 1100 hPA
Linearity 1 ±0.05 hPa ±0.10 hPa
Hysteresis 1 ±0.03 hPa ±0.03 hPa
Repeatability 1 ±0.03 hPa ±0.03 hPa
Calibration uncertainty 2 ±0.07 hPa ±0.15 hPa
Accuracy at +20 °C (+68 °F) 3 ±0.10 hPa ±0.20 hPa
Barometric pressure range 50 … 1100 hPA
Linearity 1 ±0.20 hPa
Hysteresis 1 ±0.08 hPa
Repeatability 1 ±0.08 hPa
Calibration uncertainty 2 ±0.15 hPa
Accuracy at +20 °C (+68 °F) 3 ±0.20 hPa
Temperature dependence 4
500 … 1100 hPa ±0.1 hPa
50 … 1100 hPa ±0.3 hPa
Total accuracy −40 … +60 °C (−40 … +140 °F)
500 … 1100 hPa ±0.15 hPa ±0.25 hPa
50 … 1100 hPa ±0.45 hPa
Long-term stability
500 … 1100 hPa ±0.1 hPa/year
50 … 1100 hPa ±0.1 hPa/year
Miscellaneous
Pressure units hPa, mbar, kPa, Pa inHg, mmH20, mmHg, torr, psia hPa, mbar, kPa, Pa inHg, mmH20, mmHg, torr, psia
Resolution 0.01 hPa 0.1 hPa
Settling time at startup (one sensor) 4 s 3 s
Response time (one sensor) 2 s 1 s
Acceleration sensitivity Negligible
Maximum pressure limit 5000 hPa absolute
Table 2. PTB330 inputs and outputs
Property Description/Value
Supply voltage 10 … 35 V DC
Supply voltage sensitivity Negligible
Typical power consumption at +20 °C (+68 °F) (Uin 24 V DC, one pressure sensor)

RS‑232: 25 mA

RS‑485: 40 mA

Uout: 25 mA

Iout: 40 mA

Serial I/O RS‑232C, RS‑485, RS‑422
Table 3. PTB330 operating environment
Property Description/Value
Pressure range 500 … 1100 hPa, 50 … 1100 hPa

Operating temperature

−40 … +60 °C (−40 … +140 °F)

IP rating

IP66: Dust-tight. Protected from powerful water jets from any direction.

EMC compatibility

EN 61326‑1, industrial environment

Table 4. PTB330 mechanical specifications
Property Description/Value
Pressure fitting Barbed fitting for ⅛‑inch I.D. tubing or quick connector with shutoff valve for ⅛‑inch hose
Pressure connector M5 (10‑32) internal thread
Housing material G AlSi10 Mg (DIN 1725)
Weight 1 … 1.5 kg (2.2 … 3.3 lb)
1 Defined as ±2 standard deviation limits of endpoint non-linearity, hysteresis, or repeatability error.
2 Defined as ±2 standard deviation limits of inaccuracy of the working standard including traceability to international standards.
3 Defined as the root sum of the squares (RSS) of endpoint non-linearity, hysteresis error, repeatability error, and calibration uncertainty at room temperature.
4 Defined as ±2 standard deviation limits of temperature dependence over the operating temperature range.