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Vaisala Barometric Pressure Transfer
Standard PTB330TS
Technical data
These specifi cations apply when MI70, PTB330 and HMP155 are
used together in the PTB330TS product. For individual specifi cations,
please refer to the product documentation and brochures of the
PTB330 and HMP155.
PTB330TS is in conformity with the following EU directives:
- EMC Directive (2004/108/EC) Complies with the EMC product family standard EN61326-1,
Electrical equipment for measurement control and laboratory use - Basic immunity test
requirements.
- Low Voltage Directive (2006/95/EC)
- ROHS Directive (2002/95/EC)
Performance
Barometric pressure (PTB330)
Measurement range 500 ... 1100 hPa
Linearity* ±0.05 hPa
Hysteresis* ±0.03 hPa
Repeatability* ±0.03 hPa
Calibration uncertainty** ±0.07 hPa
Accuracy at +20 °C (+68 °F) *** ±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
Settling time at power-up (one sensor) 4 s
Response time (one sensor) 2 s
Acceleration sensitivity negligible
* Defined as ±2 standard deviation limits of endpoint nonlinearity, hysteresis 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 non-linearity, hysteresis error,
repeatability error and calibration uncertainty at room temperature.
**** Defined as ±2 standard deviation limits of temperature dependence over the operating
temperature range.
Relative humidity (HMP155)
Measurement range 0 ... 100 %RH
Accuracy (incl. non-linearity, hysteresis and repeatability) at
+15 ... +25 °C (+59 ... +77 °F) ±1 %RH (0 ... 90 %RH)
±1.7 %RH (90 ... 100 %RH)
-10 ... +40 °C (-4 ... 104 °F) ±(1.0 + 0.008 x reading) %RH
Factory calibration uncertainty (+20 °C /+68 °F)
±0.6 %RH (0 ... 40 %RH)*
±1.0 %RH (40 ... 97 %RH)*
Humidity sensor HUMICAP180R
HUMICAP180RC
Response time at +20 °C in still air with a sintered PTFE fi lter
63 % 20 s
90 % 60 s
* Defined as ±2 standard deviation limits. Small variations possible, see also calibration
certificate.
General
Operating temperature range -10 ... +40 °C (+14 ... +104 )°F
Operating humidity range non-condensing
Maximum pressure limit 5000 hPa abs.
Power supply Rechargeable NiMH battery pack
with AC-adapter or 4xAA-size
alkalines, type IEC LR6
Operation time (using rechargeable battery pack)
Continuous use with PTB330 11 h typical at +20 °C (+68 °F)
Datalogging use up to 30 days
Menu languages English, Chinese, French, Spanish,
German, Russian, Japanese,
Swedish, Finnish
Display LCD with backlight, graphic
trend display of any parameter,
character height up to 16 mm
Data logging capacity 2700 points
Alarm audible alarm function
Temperature (HMP155)
Measurement range -10 ... +40 °C (+14 ... +104 °F)
Accuracy
-10 ... +20 °C ±(0.176 - 0.0028 x
temperature) °C
+20 ... +40 °C ±(0.07 + 0.0025 x
temperature) °C
Accuracy over temperature range (see graph overleaf)
Temperature sensor Pt100 RTD 1/3 Class B IEC 751
Response time with additional temperature probe in 3 m/s air fl ow
63 % <20 s
90 % <35 s
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