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Features:
• 500...1100 hPa
• -40...+60°C (-40...+140°F) operating temperature range
• Total accuracy ±0.15 hPa (class A)
• Long-term stability ±0.1hPa/yr (500...1100 hPa)
• Several output options
• NIST traceable (certificate included)
The BAROCAP® Digital Barometer PTB220 is designed for measurements in a wide environmental and pressure range. The barometer is ideal to be used as a replacement for mercury barometers.
The PTB220 barometer features extremely high accuracy. Class A barometers are fine adjusted and calibrated against a deadweight tester. All PTB220 barometers are delivered with a factory calibration certificate, which is NIST traceable.
The PTB220 barometer uses the inhouse developed BAROCAP® Sensor. This silicon capacitive absolute pressure sensor has excellent hysteresis and repeatability characteristics, along with outstanding temperature and long-term stability.
Technical Data:
Operating Range: (1hPa = 1mbar)
Pressure Range: 500...1100 hPa
Operating Temperature Range: -40...+60°C (-40...+140°F)
Humidity Range: non-condensing
Accuracy: 500...1100 hPa
Linearity*: ±0.05 hPa
Hysteresis*: ±0.03 hPa
Repeatability*: ±0.03 hPa
Calibration uncertainty** (class A): ±0.07 hPa
Accuracy at +20°C***: ±0.10 hPa
Temperature Dependence****: = ±0.1 hPa
Total Accuracy (-40...+60°C / -40...+140°F): ±0.15 hPa
Long-term Stability: = ±0.1 hPa/year
* Defined as ±2 standard deviation limits of endpoint non-linearity, hysteresis error or repeatability error.
** Defined as ±2 standard deviation limits of inaccuracy of the working standard including traceability to NIST.
*** Defined as the root sum of the squares (RSS) of endpoint nonlinearity, hysteresis error, repeatability error and calibration uncertainty at room temperature.
**** Defined at ±2 standard deviation limits of temperature dependence over the operating temperature range.
General Data:
Supply Voltage: 10...30 VDC reverse polarity protected
Pressure Units: hPa, mbar, kPa, Pa, inHg, mmH20, mmHg, torr, psia
Baud Rates: 300, 600, 1200, 2400. 4800, 9600
Resolution (class A): 0.01 hPa
Settling Time at Power-up (class A): 4 s
Response time (class A): 2 s
Housing: epoxy painted aluminum
Weight: 1 kg
Complies with EMC standard EN 61326-1:1997 + Am1:1998 + Am2:2001; Generic Environment
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