Vaisala BAROCAP Technical data

Vaisala BAROCAP® Pressure Module

Features/Benefits

Based on silicon capacitive

▪

sensor technology - BAROCAP®

Excellent accuracy, repeatability,

▪

and long-term stability

Wide operating temperature

▪

range

Calibration traceable to

▪

international standards (NIST)

An optional barometer module

▪

for the Vaisala Data Logger
QML201

www.vaisala.com

The Vaisala BAROCAP
Module has excellent accuracy,
repeatibility and long-term stability
over a wide range of operating
temperatures. The total accuracy is
± 0.25 hPa with factory calibration. It
is well suited for demanding synoptic
applications, and an affordable
choice for Vaisala automatic weather
stations utilizing the Vaisala Data
Logger QML201.

®

Pressure

The ne adjustment and calibration
of the sensor are handled using the
electronic working standards, which
are traceable to international
standards (NIST). The pressure
module can be calibrated independently
of the QML201 data logger.

The pressure module is located on
the QML201 CPU board. The pressure
range of the sensor is 500 … 1100 hPa
and operating temperature range

-40 ...+60 °C.

Pressure module located on the
central processing unit QML201.

Technical data

Property Description/value

Pressure range 500 ... 1100 hPa
Linearity * ± 0.10 hPa
Hysteresis * ± 0.03 hPa
Repeatability * ± 0.03 hPa
Calibration uncertainty ** ± 0.15 hPa
Accuracy at +20 °C (+68 °F) *** ± 0.20 hPa
Temperature dependence **** ± 0.10 hPa
Total accuracy at -40 … +60 °C (-40 … +140 °F) ± 0.25 hPa
Long-term stability ± 0.10 hPa/year
Operating temperature range -40 ... +60 °C
Resolution 0.10 hPa

* 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
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.

For more information, visit
www.vaisala.com or contact
us at [e-mail]

Ref. B211084EN-A ©Vaisala 2010

This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.