Brooks® Model MT 3810 - 20 Pages

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Catalogue excerpts

1 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Metal Tube Variable Area Flowmeter with Optional Electronics based on Smart Meter Manager™ Technology GENERAL FEATURES • Broad range of flow capacities • 5% Full scale accuracy • Versatile construction for all gas and liquid applications • No back pressure required for operation • Flanged or female NPT connections • Optional 4-20 mA 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 DESCRIPTION The Brooks® Model MT 3810 Variable Area Flowmeter is a rugged, all metal flowmeter offering 5% full scale accuracy. The MT 3810 is constructed with stainless steel components for measuring a variety of 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. SPECIFICATIONS - METER Capacities, Pressure Drop and Viscosity Immunity Ceilings Refer to Table 1 Accuracy Standard Flow Accuracy: ± 5% Full Scale Repeatability 0.25% Full Scale Pressure Ratings Refer to Table 2 for maximum non-shock pressure Pressure Equipment Directive (PED) 97/23/EC Flow meter complies under Sound Engineering Practices (SEP) or Catagories I, II or III. Refer to Table 1 Scales Standard: Detachable aluminum plate single or dual scales Graduations: Choice of direct reading units, millimeter or percentage of maximum flow Operating Fluid Temperature Limits/Meter only Minimum: -58°F (-50°C) Maximum: 420°F (215°C) Meter with valve: 392oF (200oC) Refer to Table 3 for temperature limitations for meters with electronics. Model MT 3810

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2 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Table 1 Model MT 3810 Capacities, Pressure Drop and Viscosity Immunity Ceiling MATERIALS OF CONSTRUCTION: Metering Tube 316L stainless steel Flanges and End Fittings 316/316L dual certified stainless steel Connections 150 lbs or 300 lbs RF ANSI B 16.5 flanges or PN 40 DIN 2527/2635 or Female NPT 125/175 Ra flange finish Vertical inlet and outlet Floats Standard: 316L stainless steel O-rings (NPT only) Standard: Viton® fluoroelastomers Optional: Teflon® Indicator Housing and Cover Enclosure NEMA 4X construction Die cast aluminum, polyurethane...

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5 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Design Features • A 2-wire, loop-powered device for ease of wiring and installation • 4-20 mA analog output for flowrate, with Bell-202 modulated HART communication channel • User selectable 0% and 100% analog output ranges with optional smoothing • Flexible (mix & match) units of measure for flowrates, totals, temperatures, densities, etc. • Two flow totalizers: Resettable and inventory totalization • User configurable, scaleable pulse output for various engineering units • Comprehensive alarms for both process flow and internal...

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6 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Figure 2 Transmitter Only Wiring Diagram Ref. No.981Y006 - Rev. D Sheet 1 of 2

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7 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Figure 3 Transmitter Only Wiring Notes Ref. No.981Y006 - Rev. D Sheet 2 of 2

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8 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Figure 4 Transmitter with Alarm and Pulse Outputs Wiring Diagram Ref. No.981Y005 - Rev. F Sheet 1 of 2

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9 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Figure 5 Transmitter with Alarm and Pulse Outputs Wiring Notes Ref. No.981Y005 - Rev. F Sheet 2 of 2

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10 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Output Signals Transmitter: 4-20 mA analog output with HART Update Rate: 4 times per sec. Range: 3.8 to 22.0 mA Two Alarm Outputs (open collector) Optically isolated outputs assignable to alarms, reverse flow indicator, or manual valve. Maximum off-state voltage: 30 Vdc Maximum off-state current: 0.05 mA Maximum on-state voltage: 1.2 Vdc Maximum on-state current: 20 mA One Pulse Output (open collector) Optically isolated. Scaleable to a variety of engineering unit systems (pulses per liter, gallons, etc.) Range: 1 Hz to 1 kHz Maximum...

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11 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Figure 7 Model MT3810 Explosion-Proof Housing Wiring Diagram Ref. No.981Y008 - Rev. D Sheet 1 of 1

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12 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Optional Electronic Equipment Microprocessor Transmitter with Inductive Alarms This combined system provides both the sophistication of the microprocessor along with the simplicity of one or two switch inductive alarms. Specifications for the transmitter are as stated previously and specifications for the front adjustable inductive alarms are as follows. For Wiring Diagrams, Refer to Figures 7, 8 and 9. Figure 8 Transmitter with Inductive Alarm Wiring Diagram Ref. No.981Y007 - Rev. F Sheet 1 of 2

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13 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Figure 9 Transmitter with Inductive Alarm Wiring Notes Ref. No.981Y007 - Rev. F Sheet 2 of 2

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14 Brooks® Model MT 3810 Data Sheet DS-VA-MT3810-eng March, 2008 Inductive Alarm Switches Design Features • 1 or 2 normally open inductive limit switches • For low or high limit signaling/switching Description One or 2 electronic limit switches can be installed in the indicator housing to allow initiation of signaling or switching functions on a preset flow value. The limit switch operates as a slot initiator that is inductively actuated by a disc mounted on the pointer shaft. Any flow value can be used for setting the limit value by sliding the initiator along the indicator scale. Minimum setting...

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