Brooks Instrument MT3809E - Manual (Page 7)

1-1
Section 1 Introduction
Models MT 3809 & 3819
Installation and Operation Manual
X-VA-MT3809-3819-eng
Part Number: 541B049AHG
September, 2008
1-1 Description
The Brooks ® Models MT 3809 and MT 3819 Variable Area Flowmeters are
rugged, all metal flowmeters offering 2% full scale accuracy. The Model MT
3809 is constructed with stainless steel components for measuring a
variety of gas, liquid and steam applications while the Model MT 3819
utilizes a ETFE (Tefzel™) 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 output with HART
microprocessor transmitter with or without configurable alarms and pulse
output for totalization. The microprocessor electronics are based on the
proprietary Smart Meter Manager technology utilized as the basis for an
array of Brooks products.
Also available are front adjustable inductive alarms, high temperature or
stainless steel indicator housings, valves, sight flows, flow controllers and
material certifications.
1-2 Design Features
• Broad range of flow capacities
• 2% Full scale accuracy
• Versatile construction for all gas, liquid, steam applications
• Operable under high temperatures and pressures
• Flanged or female NPT connections
• Optional 4-20mA and HART
® programmable
microprocessor transmitter with or without alarms and pulse output for
totalization
• Electronics designed with either intrinsically safe or explosion proof
construction to meet UL, (US & Canada) ATEX certifications and CE
requirements
1-3 Specifications - Meter
Do not operate this instrument in excess of the specifications
listed below. Failure to heed this warning can result in serious
personal injury and/or damage to the equipment.
WARNING
Capacities, Pressure Drop and Viscosity Immunity
Ceiling
Refer to Tables 1-1A and 1-1B
Accuracy
Standard Flow Accuracy: ± 2% Full Scale
Optional Flow Accuracy: ± 1% Full Scale