Safe area frequency/discrete output wiring | Emerson 1700, 2700

Output Wiring – Model 1700/2700 Intrinsically Safe Transmitters

Figure 5-4Safe area HART multidrop wiring with SMART FAMILY™ transmitters and a configuration tool

HART-compatible

24 VDC loop power

transmitters

™

supply required for

SMART FAMILY

HART 4–20 mA

HART-compatible

Model 1700 or 2700

transmitter

passive transmitters

host or controller

I.S. transmitter

600 Ω maximum resistance

250 Ω minimum resistance

Note: For optimum HART communication, make sure the output loop is single-point-grounded to an instrument-grade ground.

5.3.2Safe area frequency/discrete output wiring

The following frequency/discrete output wiring diagram is an example of proper basic wiring for the Model 1700 transmitter’s frequency output or the Model 2700 transmitter’s frequency/discrete output.

Figure 5-5Safe area frequency/discrete output wiring

+

VDC –

Counter

+

00042

–

Rload

+

–

Note: See Figure 5-6for voltage and resistance values.

36	Micro Motion® Model 1700 and 2700 Transmitters

Image 40

Emerson 1700, 2700 installation manual 5Safe area frequency/discrete output wiring

Contents

Micro Motion Model 1700 Model 2700 Transmitters Page Contents Index Before You Begin SafetyOverview Flowmeter components Transmitter installation procedures Flowmeter documentation 1Flowmeter documentation resources Micro Motion customer service Installing the Transmitter Installation architecture 1Installation types Temperature limits Power sourceAC power requirements Determining an appropriate location DC power requirements 1Typical power cable resistances at 68 F 20 C Accessibility for maintenance Maximum cable lengths2Maximum cable lengths Mounting the transmitter Integral installations 2Rotating the transmitter 34-wire remote Wall mount or pipe mount 3 9-wire remote installations 59-wire remote Wall mount or pipe mount 6Transmitter/core processor assembly Exploded view Mounting the remote core processor 7Remote core processor Wall mount or pipe mount Grounding the flowmeter components 3Grounding methods for flowmeter components Supplying power Rotating the display Installing the Transmitter 10Display components Wiring the Transmitter to the Sensor Cable types 2 9-wire cable 1 4-wire cableWiring for 4-wire remote installations 3Wiring to the mating connector Wiring for 9-wire remote installations Core processor on transmitter Subtask 1 Wire the remote core processor to the transmitter 5Cable glands 7Wrapping the shield drain wires 10Gland body and core processor housing Subtask 2 Wiring the sensor to the remote core processor 129-wire cable between sensor and core processor Wiring the Transmitter to the Sensor Output Wiring Model 1700/2700 Analog Transmitters Output wiringOutput terminals and output types 1Terminals and output types 1Basic analog wiring 2HART/analog single-loop wiring Smart Family Output Wiring Intrinsically Safe Safe area output wiring Safe area mA output wiring 2Safe area mA output load resistance values Safe area frequency/discrete output wiring 5Safe area frequency/discrete output wiring Hazardous area output wiring Hazardous area safety parameters 2Safety parameters Hazardous area voltageHazardous area current Hazardous area capacitance Hazardous area mA output wiring Hazardous area frequency/discrete output wiring Hazardous area Output Wiring Model 2700 Configurable I/O Transmitters Channel configuration 1Channel configuration MA output wiring 2Basic mA wiring Frequency output wiring 5Frequency output Terminals 3 & 4 Channel B Internal power 7Frequency output Terminals 5 & 6 Channel C Internal power Discrete output wiring 9Discrete output 1 Terminals 3 & 4 Channel B Internal power 11Discrete output 2 Terminals 5 & 6 Channel C Internal power Volts Voltage Output Level High Discrete input wiring 2Input voltage ranges for external power 16Discrete input Terminals 5 & 6 Channel C Internal power Micro Motion Model 1700 and 2700 Transmitters Foundation fieldbus wiring 1Connecting the fieldbus communication wires PROFIBUS-PA wiring 2Connecting the PROFIBUS-PA communication wires Specifications Functional specificationsPower connection Service port connection Core processor connection Input/output signals Input signal from sensorFisco and Fnico approval Specifications Operating Absolute minimum = 100 Ohms for V supply 25.6 volts Specifications Service port Digital communicationHART/Bell202 Foundation fieldbus or PROFIBUS-PA transmitters Power supply Environmental requirements Ambient temperature limitsAmbient temperature effect EMC compliance UL and CSA TransmitterOutputs Atex and IECEx Performance specifications Physical specificationsHousing Mounting Dimensions WeightInterface/display Dimensions in inchesmm Inches Dimensions in mm Or M20 × 11/16 160 13/16 139 ″-14 NPT 158 182 × Ø3/8 13/16 148 15/16 × 1/2″-14 NPT Figure A-5Dimensions Remote core processor Index Atex Remote core processor with remote Index Micro Motion Model 1700 and 2700 Transmitters Page 20001700