Brooks MT3809G - 1-7-1 Current Loop 4-20 mA with HART Transmitter

Installation and Operation Manual
X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
July, 2018
Models MT3809G & MT3810G
Design Features
• 4-20 mA analog output for owrate
• Bell-202 modulated HART digital communication over the 4-20 mA signal
• Current loop powered 2-wire connection
• User selectable 0% and 100% analog output ranges with optional
smoothing
• Flexible (mix & match) units of measure for owrates, totals,
temperatures, densities, etc.
• Two ow totalizers: Resettable and inventory totalization
• User congurable, scalable pulse output for various engineering units
• Hi- and Lo-ow alarm output
Description
The 4-20 mA with HART transmitter is a compact microprocessor device
designed to interface directly with the Model MT3809. This transmitter
includes a Hi- and Lo alarm switch output and a pulse output.
The HART digital communication signals are superimposed on top of the
4-20 mA signal, allowing communication of more than just the process
variable.
The transmitter is HART-programmable or for numerous variables such as
ow rate, totalization, calibration factors, and high-low alarm parameters.
It is programmable with easy-to-use hand held congurators. Prior to
shipment, commonly used default values are programmed by Brooks to
ensure ease of operation and quick startup. However, parameters may be
reprogrammed by the user if needed. Flow rate information may be viewed
locally at the meter scale, LCD display or displayed remotely.
Powersupplyvoltage 21to30Vdc:(2Ͳwirecurrentlooptransmitter)
Loopcurrent/currentconsumption
range
3.8to22.0mA.
Opencollectoralarmoutput
Opticallyisolatedoutputsassignabletoalarms.
•Max.offͲstatevoltage:30Vdc
•Max.offͲstatecurrent:0,05mA
•Max.onͲstatevoltage:1.2Vdc
•Max.onͲstatecurrent:20mA
Opticallyisolated.Scalabletoavarietyofengineeringunitsystems(pulsesperliter,gallons,
etc.).
•Range:1Hzto1kHz
•Max.offͲstatevoltage:30Vdc
•Max.offͲstatecurrent:0.05mA
•Max.onͲstatevoltage:1.2Vdc
•Max.onͲstatecurrent:20mA
TemperatureSpecification SeeTemperatureCutͲoff Table
M20x1,5accordingtoISO(1/2"NPT,3/4”NPT(F)orcableglandoptional)
•Brass/Nickelplatedcableglandcablediameterrange8Ͳ11mm(Aluminumhousing)
•Stainlesssteelcableglandcablediameterrange7Ͳ10.5mm(SShousing)
Linearity Lessthan1%atmax.current.
Temperatureinfluence Lessthan0.04%per°C.
Voltageinfluence Lessthan0.002%/Vdc.
Loadresistanceinfluence ±0.1%fullscale.
HARTRevision HARTͲ7
HiͲandLoͲalarmoutputs
PulseOutput
ElectricalConnector
Table 1-7 4-20 mA with HART Transmitter Description Table
1-7-1 Current Loop 4-20 mA with HART Transmitter, with Alarms, Display and Pulse Output