Brooks Instrument MT3809G - Manual (Page 7)

Installation and Operation Manual
X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
September, 2013
Models MT3809G & MT3810G
1-1
Section 1 Introduction
1-1 Descripton
The Brooks ® Models MT3809 and MT3810 are rugged, all metal
flowmeters offering reliable operation based on the variable area principle.
The Model MT3809 is constructed with stainless steel components for
measuring a variety of liquid and gas applications while the Model MT3809
ETFE utilizes an E/TFE lining for aggressive liquid and gas applications.
Flow rate indication is provided by means of magnetic coupling where a
magnet, encapsulated in the float, is coupled to a rotatable magnet located
in the rear of the indicator, thus turning the dial indicator mounted on the
meter.
Optional accessories available include 4-20 mA analog output with HART ®
microprocessor transmitter with or without configurable alarms and pulse
output for totalization. Also available are front adjustable inductive alarms,
high temperature or stainless steel indicator housings, valves, flow
controllers and certifications.
1-2 Design Features
The Brooks Model MT3809 has been the “go to” meter for several years
and the choice of Engineering Contractor customers (EPC). Brooks is
proud to raise the performance of the standard meter by adding these new
features and options:
• New transmitter and alarm that meets SIL 2 requirements, the perfect
product for safety applications
• LCD display with local operator interface without removing the cover
which means changes can be made even in hazardous areas
• 316SS flameproof housing that meets IIC/Class 1 Div 1 now even more
hazardous applicaton can be served by one meter
• The broadest range of operating temperatures in the industry, the perfect
meter for even more applications
• Even lower flow rates with the current lay lengths which means one meter
style can be used for very low to high flow rates
• The new meter is designed to ASME B31.3 and gasket sealing surface
is per ASME B16.5 a rugged design that does not require special gaskets
at installation
• Weldneck flanges are standard which means full penetration welds that
can easily be tested for integrity
1-3 Meter Specifications
Capacities, pressure drop and viscosity immunity ceilings:
Refer to Table 1-1.