Bronkhorst MASS-VIEW Series - Manual (Page 6)

BRONKHORST HIGH‐TECH
Page 6 MASS‐VIEW® series 9.17.051
1.5 Warranty
The products of Bronkhorst High‐Tech B.V. are warranted against defects in material and workmanship
for a period of three years from the date of shipment, provided they are used in accordance with the
ordering specifications and the instructions in this manual and that they are not subjected to abuse,
physical damage or contamination.
Products that do not operate properly during this period may be repaired or replaced at no charge.
Repairs are normally warranted for one year or the balance of the original warranty, whichever is the
longer.
The warranty includes all initial and latent defects, random failures, and undeterminable internal causes.
It excludes failures and damage caused by the customer, such as contamination, improper electrical
hook‐up, physical shock etc.
Re‐conditioning of products primarily returned for warranty service that is partly or wholly judged non‐
warranty may be charged for.
Mass Flow ONLINE B.V. prepays outgoing freight charges when any party of the service is performed
under warranty, unless otherwise agreed upon beforehand, however, if the product has been returned
collect to Bronkhorst High‐Tech B.V., these costs are added to the repair invoice. Import and/or export
charges, foreign shipping methods/carriers are paid for by the customer.
1.6 General Description
The 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 instruments measure direct mass flow,
virtually independent of pressure and temperature changes, and have a low pressure drop.
Other advantages compared to conventional meters are the high accuracy and the large range ability.
The MASS‐VIEW
®
series are supplied with totalizer and alarm functions. Flow control can be achieved
by an optional built‐in needle valve. A bright graphical OLED display, clearly visible over any angle,
allows reading of actual flow (value and bar graph), total flow and fluid type. The display features easy
navigation through a user‐friendly menu, using a 4‐way button with centre push. Furthermore the
instruments have 2 potential free alarm contacts grounded on one side.
1.7 Housing
The MASS‐VIEW
®
meter has a straight tube with a mass flow sensor. The fluid connections have an
inner thread of G1/4” (1/4” BSPP cavity). The connections reside on the back of the instrument.
The bottom fluid connection is the inlet; the upper connection is the outlet.
For electrical connection and power supply, the instrument has a RJ‐45 modular connector on top of the
instrument. These instruments are suited for indoor (dry) applications, like laboratories and in well
protected (OEM) housings. The front part is made of ABS, the back part of Aluminium. The laminar flow
element and orifice size inside the control valve are optimized for the customers gas and process
conditions.
MASS‐VIEW® MASS‐VIEW®
with needle valve
MASS‐VIEW®
with constant‐flow controller