Specifications

100 Commerce Way, Woburn, MA 01801
TEL: 1-888-VAISALA (824-7252) FAX: [phone]
E-MAIL: [e-mail] Access catalog on-line at: www.vaisala.com/inc/ssdcat
90
TECHNICAL DATA - PTB 220 SERIES
Note: Hectopascal (hPa) is the barometric pressure unit
recommended by WMO and also accepted by ISO.
1 hPa = 1 mbar
Operating Range
Pressure range 500...1100 hPa
Temperature range
operating -40...+140°F (-40...+60 °C)
with local display 32...+140 °F (0...+60 °C)
storage -76...+140°F (-60...+60 °C )
storage with local display -4...+140°F (-20...+60 °C )
Humidity range non-condensing
Accuracy
0.01% R¤ Class A
Linearity* ±0.05 hPa ±0.05 hPa
Hysteresis* ±0.02 hPa ±0.03 hPa
Repeatability* ±0.02 hPa ±0.03 hPa
Calibration uncertainty** ±70 ppm ±0.07 hPa
Accuracy at +68°F (+20°C)*** ±100 ppm ±0.10 hPa
Class B
Linearity* ±0.10 hPa
Hysteresis* ±0.03 hPa
Repeatability* ±0.03 hPa
Calibration uncertainty** ±0.15 hPa
Accuracy at +68°F (+20°C)*** ±0.20 hPa
Temperature dependence**** ±0.1 hPa
Total accuracy
Class A ±0.15 hPa
Class B ±0.25 hPa
Long-term stability ±0.1 hPa/year
¤ Class A / 800...1100 hPa /+68°F (+20°C)
* Defined as ±2 standard deviation limits of end-point 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 end-point
non-linearity, 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
Supply voltage 10...30VDC reverse polarity protected
Supply voltage sensitivity negligible
Current consumption
operation mode less than 30 mA
with local display less than 50 mA
hardware shutdown mode less than 0.1 mA
Serial I/O RS 232C full duplex or
bidirectional TTL level or
RS 485/422 half duplex
code ASCII
parity none, even, odd
data bits 7 or 8
stop bits 1 or 2
Pulse output TTL level pulse output at about
5 kHz or 50 kHz
Optional analog output module
output range 05VDC,020mA
resolution 4 Pa
total accuracy 60°85°F (+15+30
0
C)
class A ±0.25 hPa
class B ±0.30 hPa
(The module provides a secondary barometer output and is
supplied without a calibration certificate.)
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 class B 0.1 hPa
Settling time at power-up (one sensor)
class A 3 s class B 2 s
Response time (one sensor)
class A 2 s class B 1 s
fast measurement mode 0.2 s
Acceleration sensitivity negligible
Pressure connector M5 (10-32) internal thread
Pressure fitting barbed fitting for 1/8" I.D. tubing
Maximum pressure limit 5000 hPa abs.
Electrical connector female 9-pin subD
Housing epoxy painted aluminum
Weight 1 kg
Specifications subject to change without prior notice.
Factory setting
BAROCAP
®
is a registered trademark of Vaisala Inc.
PTB 220 Series
Dimensions in mm (inches)
120 (4.72)
65 (2.56)
145 (5.71)
133 (5.24)
Ø 6.5
(0.26)
25.6 (1.01)
104 (4.09)
120 (4.72)
139.5 (5.49)
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