161
The PTB330 Digital Barometer
The HMP155 probe The MI70 hand-held indicator displaying
the prevailing pressure in hPa
PTB330 Digital Barometer
Vaisala BAROCAP
®
Digital Barometer
PTB330 is a new generation
barometer designed for a wide
range of high-end atmospheric
pressure measurement. The pressure
measurement of the PTB330 is based
on the Vaisala in-house, silicon
capacitive, absolute pressure sensor
– the Vaisala BAROCAP
®
Sensor. It
provides high measurement accuracy
and excellent long-term stability.
High Accuracy
The PTB330 series features extremely
high accuracy. Class A barometers for
the most demanding applications are
fine-adjusted and calibrated against
a high-precision pressure calibrator.
All the PTB330 barometers come with
a NIST traceable, factory calibration
certificate, also optional ISO/IEC
17025 accreditation calibration
services are available.
Reliability through
Redundancy
According to customers’ choice, the
PTB330 can incorporate one, two
or three BAROCAP
®
sensors. When
two or three sensors are used, the
barometer continuously compares
the readings of the pressure sensors
against one another and provides
information on whether these are
within the set internal difference
criteria. This unique feature
provides redundancy in pressure
measurement. Thus, users get a
stable and reliable pressure reading
at all times as well as a pre-indication
of when to service or re-calibrate the
barometer.
Optional HMP155
Humidity and
Temperature Probe
The new Vaisala HUMICAP
®
Humidity
and Temperature Probe HMP155
provides reliable humidity and
temperature measurement.
Long-Term Stability
The HMP155 has a new generation
Vaisala HUMICAP
®
180R sensor
that has excellent stability and
withstands harsh environments well.
The probe structure is solid and the
sensor is protected with a sintered
teflon filter, which gives maximum
protection against liquid water, dust,
and dirt.
Fast Temperature
Measurement
What’s more, with its fast response
time, the additional temperature
probe for the HMP155 is ideal for
measurement in environments with
rapidly changing temperatures.
MI70 Hand-Held Indicator
for Spot-Checking
Applications
The Vaisala Measurement Indicator
MI70 is a user-friendly indicator
for demanding spot-checking
measurements. It is ideal for field
checking and calibration of Vaisala’s
fixed instruments.
Easy-to-Use User
Interface and Three-
Variable Display
The MI70 features a multilingual,
menu-based user interface, and a
clear graphical LCD display. Overall
three measurement parameters can
be displayed and logged into the
meter’s memory at the same time.
One or two probes or transmitters
can be connected simultaneously.
MI70 Link
The optional MI70 Link Windows
®
software and the USB connection
cable form a practical tool for
transferring logged data and real
time measurement data from the
MI70 to a PC.
Ref. B210785EN-B ©Vaisala 2011
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.
Please contact us at
www.vaisala.com/requestinfo
www.vaisala.com
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