MASS-VIEW0 pages

The intelligent alternative for VA meters: mass flow meters for gases with flow display

> Introduction
Bronkhorst High-Tech B.V., the European market leader in thermal
Mass Flow Meters/Controllers and Electronic Pressure Controllers,
has many years of experience in designing and manufacturing
precise and reliable measurement and control devices. With a wide
range of instruments, Bronkhorst High-Tech offers innovative solutions for many different applications in a variety of different markets.

> Description
This new series of mass flow meters provides modern, novel and
economical alternative to variable area meters (VA meters), also
known as rotameters or purgemeters. Unlike conventional
VA meters this new flow meter measures mass flow instead of
volume flow. For easy VA meter replacement the MASS-VIEW®’s
mechanical construction offers the most common options for
process connection on the market.

> ASS-VIEW® series
M
thermal mass flow meters
Bronkhorst High-Tech designed MASS-VIEW® series operate on
the principle of direct thermal mass flow measurement
(no by-pass). An advantage of using this type of sensor is that the
instrument measures direct mass flow, without the need of
temperature and pressure correction. Other benefits, compared to
conventional VA meters are higher accuracy, wider rangeability
(up to 1:100), free of parallax errors and an inherently safer
construction, by eliminating glass components in the flow path.
MASS-VIEW® flow meters can be supplied in full scale ranges
from 0.05 up to 200 ln/min (Air equivalent), with a pressure rating
of 10 bar(g) or 150 psi(g). A bright graphical OLED display, clearly
visible at wide angles, allows reading of actual flow (value and a
bar graph), total flow and type of gas. The display features easy
set up via a user-friendly menu, using a 4-way navigation push
button. The pre-installed gases eliminate the need to recalibrate
for different gases and therefore reduce the cost of ownership.
Additional features & functions include a variety of alarm and
counter functions, an analog output signal, digital interfaces and
two relay contacts. Flow control may be achieved with an optional
needle valve. These high quality needle valves offer smooth and
fine adjustment of the gas flow rates.

> MASS-VIEW®
features
ut lear indication in:
C
- ctual flow rate
A
(bar graph and value)
t - desired flow units
t - type of gas
t - totalized flow
ut right, wide-angle OLED display
B
ut ree of parallax errors
F
ut irtually independent of pressure and temperature variations
V
ut ow pressure drop
L
ut ide flow ranges
W
ut ast response
F
ut igh accuracy
H
ut lectronic output, analog (0…5 Vdc) and digital interface
E

> Digital features
ut S232 interface and Modbus ASCII/RTU communication
R
ut onfigurable password protection
C
ut larm and counter functions
A
ut ulti Gas / Multi Range
M
ut re-installed gases
P
ut igitally calibrated
D
ut ree Bronkhorst software tools
F