Property | Class A | Class B 1 |
---|---|---|
Barometric pressure range 500–1100 hPA | ||
Linearity 2 | ±0.05 hPa | ±0.10 hPa |
Hysteresis 2 | ±0.03 hPa | ±0.03 hPa |
Repeatability 2 | ±0.03 hPa | ±0.03 hPa |
Calibration uncertainty 3 | ±0.07 hPa | ±0.15 hPa |
Accuracy at +20 °C (+68 °F) 4 | ±0.10 hPa | ±0.20 hPa |
Barometric pressure range 50–1100 hPA | ||
Linearity 2 | – | ±0.20 hPa |
Hysteresis 2 | – | ±0.08 hPa |
Repeatability 2 | – | ±0.08 hPa |
Calibration uncertainty 3 | – | ±0.15 hPa |
Accuracy at +20 °C (+68 °F) 4 | – | ±0.20 hPa |
Temperature dependence 5 | ||
500–1100 hPa | ±0.1 hPa | ±0.1 hPa |
50–1100 hPa | ±0.3 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 | ±0.1 hPa/year |
50–1100 hPa | ±0.2 hPa/year | ±0.2 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 (1 sensor) | 4 s | 3 s |
Response time (1 sensor) | 2 s | 1 s |
Acceleration sensitivity | – | Negligible |
Maximum pressure limit | – | 5000 hPa absolute |
Maximum measurement rate 6 | – | 10 Hz |
Property | Description/Value |
---|---|
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 |
Serial communication | RS-232, RS‑485, RS‑422 |
Property | Description/Value |
---|---|
Operating pressure |
500–1100 hPa, 50–1100 hPa |
Operating temperature |
PTB330 without display: −40 … +60 °C (−40 … +140 °F) |
Operating humidity |
0–100 %RH, non‑condensing |
Storage temperature |
PTB330 without display: −55 … +80 °C (−67 … +176 °F) |
IP rating |
IP66: Dust-tight. Protected from powerful water jets from any direction. |
Property | Description/Value |
---|---|
Pressure fitting | Barbed fitting for 1/8-inch (inside diameter) tubing or quick connector with shutoff valve for 1/8‑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) |
Property | Value |
---|---|
EU directives and regulations |
RoHS Directive (2011/65/EU) as amended by 2015/863 EMC Directive (2014/30/EU) Low Voltage Directive (2014/35/EU), applies to units equipped with single-phase AC power supply Power-1 |
Electrical safety |
EN 61010-1:2010 + A1:2019, applies to units equipped with single-phase AC power supply Power-1 |
Electromagnetic compatibility (EMC) |
EN 61326‑1, industrial environment EN 55011:2009 + A1:2010 |
Environmental |
EN IEC 63000:2018 |
1 Class B not available.
2 Defined as ±2 standard deviation
limits of endpoint non-linearity, hysteresis, or repeatability error.
3 Defined as ±2
standard deviation limits of inaccuracy of the working standard including
traceability to international standards.
4 Defined as the
root sum of the squares (RSS) of endpoint non-linearity, hysteresis error,
repeatability error, and calibration uncertainty at room temperature.
5 Defined as ±2 standard deviation limits of temperature
dependence over the operating temperature range.
6 For
class A you need a longer averaging time or measurement interval.