Resumen del contenido incluido en la página 1
Installation Manual
P/N 20003402, Rev. C
January 2007
®
Micro Motion
Model 2400S Transmitters
Installation Manual
Resumen del contenido incluido en la página 2
©2007, Micro Motion, Inc. All rights reserved. ELITE, ProLink, and the Micro Motion logo are registered trademarks of Micro Motion, Inc., Boulder, Colorado. MVD and MVD Direct Connect are trademarks of Micro Motion, Inc., Boulder, Colorado. The Emerson logo is a trademark of Emerson Electric Co. All other trademarks are property of their respective owners.
Resumen del contenido incluido en la página 3
Contents Chapter 1 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.3 Flowmeter components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Resumen del contenido incluido en la página 4
Contents Appendix A Dimensions and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 31 A.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 A.2 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 A.3 Power supply – Models 2400S Analog and PROFIBUS-DP. . . . . . . . . . . . . . . . . . . 32 A.4 Electrical connections . . . . . . . . .
Resumen del contenido incluido en la página 5
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN Chapter 1 Before You Begin 1.1 Overview This chapter provides an orientation to the use of this manual. This manual describes the procedures required to install the following transmitters: • Model 2400S transmitter with analog outputs � Model 2400S transmitter with PROFIBUS-DP ™ � Model 2400S transmitter with DeviceNet The 2400S Analog transmitter can be approved for Exe or Exi installation in Zone 1, or for installation in
Resumen del contenido incluido en la página 6
Before You Begin 1.3 Flowmeter components The Model 2400S transmitter is mounted on a Micro Motion sensor. The transmitter and sensor together comprise the Micro Motion flowmeter. Figure 1-1 provides a view of the Model 2400S transmitter mounted on a sensor. Figure 1-1 Model 2400S transmitter Transmitter housing cover Conduit openings Sensor case Clamping ring 1.4 Transmitter installation overview The Model 2400S transmitter component is mounted integrally with the sensor and grounded via the
Resumen del contenido incluido en la página 7
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN Before You Begin 1.5 Flowmeter documentation Table 1-1 lists documentation sources for other required information. Table 1-1 Flowmeter documentation resources Topic Document Sensor installation Sensor documentation shipped with sensor Hazardous area installation See the approval documentation shipped with the transmitter, or download the appropriate documentation from the Micro Motion web site (www.micromotion.com) ® Transmi
Resumen del contenido incluido en la página 8
® 4 Micro Motion Model 2400S Transmitters
Resumen del contenido incluido en la página 9
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN Chapter 2 Transmitter Orientation and Power Supply 2.1 Overview This chapter describes: � Rotating the transmitter on the sensor (optional) � Rotating the user interface module on the transmitter (optional) � Power supply requirements and wiring 2.2 Moisture protection When rotating or wiring the transmitter, guard against condensation or excessive moisture inside the transmitter housing. Be sure that the conduit openings are
Resumen del contenido incluido en la página 10
Transmitter Orientation and Power Supply Figure 2-1 Rotating the transmitter on the sensor Clamping ring Feedthrough Feedthrough notches CAUTION Excessive rotation of the housing on the feedthrough can cause wiring damage and result in measurement error or flowmeter failure. To reduce the risk of damaging internal wiring, do not rotate the housing more than 360°. You can rotate the transmitter either clockwise or counter-clockwise to reach the desired position. 2.4 Rotating the user interface
Resumen del contenido incluido en la página 11
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN Transmitter Orientation and Power Supply 3. On the back of the user interface module, four user interface connectors are provided. Rotate the user interface module to the desired position and plug it into the user interface connector on the transmitter. (See Figure 2-3 for another view of the user interface connector on the transmitter.) 4. Tighten the user interface screws. 5. Replace the transmitter housing cover and tigh
Resumen del contenido incluido en la página 12
Transmitter Orientation and Power Supply 2.5.1 DC power requirements for Model 2400S Analog and PROFIBUS-DP transmitters If you are using DC power with a Model 2400S Analog or PROFIBUS-DP transmitter, the following requirements apply: � At startup, the transmitter power source must provide a minimum of 1 A of short-term current per transmitter. � Length and conductor diameter of the power cable must be sized to provide 18 VDC minimum at the power terminals, at a load current of 0.5 A. To size
Resumen del contenido incluido en la página 13
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN Transmitter Orientation and Power Supply A user-supplied switch may be installed in the power supply line. For compliance with low-voltage directive 73/23/EEC (European installations), a switch in close proximity to the transmitter is required. Figure 2-3 Wiring the transmitter power supply Model 2400S Analog transmitter Warning flap screw User interface connector Warning flap Transmitter internal grounding screw + (L) – (N)
Resumen del contenido incluido en la página 14
® 10 Micro Motion Model 2400S Transmitters
Resumen del contenido incluido en la página 15
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN Chapter 3 I/O Wiring – Model 2400S Analog Transmitters 3.1 Overview This chapter describes how to wire I/O for Model 2400S Analog transmitters. Note: To wire I/O for Model 2400S PROFIBUS-DP and DeviceNet transmitters, see Chapter 4. The 2400S Analog transmitter can be approved for Exe or Exi installation in Zone 1, or for installation in Zone 2. If you are installing your transmitter in a hazardous area, be sure the transmitte
Resumen del contenido incluido en la página 16
I/O Wiring – Model 2400S Analog Transmitters Table 3-1 Terminal configuration options (1) Channel Terminals Function Power Comm (2) A 1 & 2 mA Internal or external HART/Bell 202 (2) (2) B 3 & 4 Frequency Internal or external None mA Internal or external None Discrete output Internal or external None Discrete input Internal or external None (1) For transmitters with Zone 1 Exi approval, I/O power is external only. (2) Factory default. 3.4 Wiring the outputs (Zone 1 Exe and Zone 2) Note: For wirin
Resumen del contenido incluido en la página 17
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN I/O Wiring – Model 2400S Analog Transmitters 3.4.1 mA output wiring The wiring diagrams in this section are examples of proper wiring for the Model 2400S mA output. The following options are shown: � Internal power: - Basic mA output wiring – Figure 3-1 - HART/analog single-loop wiring – Figure 3-2 � External power: - Basic mA output wiring – Figure 3-3 - HART/analog single-loop wiring – Figure 3-4 � HART multidrop wiring, in
Resumen del contenido incluido en la página 18
I/O Wiring – Model 2400S Analog Transmitters Figure 3-2 HART/analog single-loop wiring – Internal power – For analog communications: � 820 Ohm maximum loop HART-compatible resistance host or controller For HART communications: � 600 Ohm maximum loop resistance � 250 Ohm minimum loop + resistance Figure 3-3 Basic mA output wiring – External power – – VDC + R load + Note: See Figure 3-5 for voltage and resistance values. Note: Channel B (terminals 3 and 4) can also be configured this way. C
Resumen del contenido incluido en la página 19
Before You Begin Power Supply I/O Wiring – AN I/O Wiring – DP and DN I/O Wiring – Model 2400S Analog Transmitters Figure 3-4 HART/analog single-loop wiring – External power – – + VDC + HART- compatible host or controller R load (250–600 Ohm resistance) Note: See Figure 3-5 for voltage and resistance values. Figure 3-5 Required external voltage versus mA load resistance If communicating with HART, a minimum of 250 Ohms is required. 36 32 28 OPERATING REGION 24 20 16 12 8 4 0 0 200 400 600 800 1
Resumen del contenido incluido en la página 20
I/O Wiring – Model 2400S Analog Transmitters Figure 3-6 HART multidrop wiring – Internal or external power 24 VDC loop power HART-compatible HART-compatible ™ supply required for SMART FAMILY host or controller transmitter HART 4–20 mA Model 2400S transmitter Model 2400S passive transmitters Internal power External power 600 Ohm maximum resistance 250 Ohm minimum resistance Note: For optimum HART communication, make sure the output loop is single-point-grounded to an instrument-grade groun
