Model RFT9739 Rack-Mount Transmitter Instruction Manual Version 3 Transmitters February 2000
Model RFT9739 Rack-Mount Transmitter Instruction Manual Version 3 Transmitters For technical assistance, phone the Micro Motion Customer Service Department: • In the U.S.A., phone 1-800-522-6277, 24 hours • Outside the U.S.A., phone 303-530-8400, 24 hours • In Europe, phone +31 (0) 318 549 443 • In Asia, phone 65-770-8155 Copyright ©2000, Micro Motion, Inc. All rights reserved. Micro Motion, ELITE, and ProLink are registered trademarks of Micro Motion, Inc., Boulder, Colorado.
Contents 1 Before You Begin 1.1 1.2 .............................. About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . About the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1 2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 2.2 2.3 Hazardous area installations . . . . . . . . . . . . . . . . . . . . Hazardous area installations in Europe. . . . . . . . . . . . Configuration, calibration, and characterization . . . .
Contents continued 5 Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum wire length . . . . . . . . . . . . . . . . . . . . . . . . . . Primary and secondary mA outputs. . . . . . . . . . . . . . . Connections for HART® communication devices. . . . . Frequency outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents continued 7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 General guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter diagnostic tools. . . . . . . . . . . . . . . . . . . . . Fault outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic messages . . . . . . . . . . . . . . . . . . . . . . . . . Interrogation with a HART® device . . . . . . . . . . . . . . .
Contents continued Tables Table 2-1 Table 4-1 Table 4-2 Table 5-1 Table 5-2 Table 5-3 Table 6-1 Table 6-2 Table 6-1 Table 6-2 Table 7-1 Table 7-2 Table 7-3 Table 7-4 Table 7-5 Table 7-6 Table 7-7 Security modes . . . . . . . . . . . . . . . . . . . . . . . . . Selecting the proper grounding scheme . . . . . . Terminal designations . . . . . . . . . . . . . . . . . . . . Output wiring terminal designations . . . . . . . . . Peripheral wiring diagrams . . . . . . . . . . . . . . . .
Contents continued Figures Figure 1-1 Figure 2-1 Figure 2-2 Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 4-1 Figure 4-2a Figure 4-2b Figure 4-2c Figure 4-3 Figure 4-4 Figure 4-5 Figure 4-6 Figure 5-1 Figure 5-2 Figure 5-3 Figure 5-4 Figure 5-5 Figure 5-6 Figure 5-7 Figure 5-8 Figure 5-9 Figure 5-10 Figure 5-11 Figure 5-12 Figure 5-13 Figure 5-14 Figure 5-15 Figure 5-16 Figure 5-17 Figure 5-18 Figure 5-19 Figure 5-20 Figure 5-21a Figure 5-21b Figure 5-22a Figure 5-22b Figure 5-23 Figure 5-24a Figure 5
Contents continued Figure 5-27a Figure 5-27b Figure 5-27c Figure 5-28 Figure 5-29 Figure 5-30 Figure 5-31 Figure 7-1 Wiring to pressure transmitter — analog output 52 Wiring to pressure transmitter — external power, analog input . . . . . . . . . . . . . . . . . . . . . . . . 53 Wiring to pressure transmitter — digital communications . . . . . . . . . . . . . . . . . . . . . 53 Wiring to remote-zero switch. . . . . . . . . . . . . . . 54 RS-485 wiring . . . . . . . . . . . . . . . . . . . . . . . . . .
Before You Begin About this manual Getting Started 1.1 Before You Begin 1 This instruction manual explains how to: • Install the Micro Motion® Model RFT9739 rack-mount transmitter for use with Micro Motion Coriolis flow sensors, including instructions for: - Power-supply and sensor wiring - Output wiring • Initialize the transmitter • Diagnose and troubleshoot problems with the transmitter Mounting For more information about the Micro Motion sensors, see the appropriate sensor instruction manual.
Before You Begin continued Figure 1-1.
Getting Started Hazardous area installations Getting Started 2.1 Before You Begin 2 WARNING If the sensor is installed in a hazardous area, failure to comply with requirements for intrinsic safety could result in an explosion. Mounting • Install the transmitter in a non-hazardous area. • For intrinsically safe sensor installations, use this document with Micro Motion UL or CSA installation instructions.
Getting Started continued Hazardous area installations in Europe To comply with CENELEC standards for hazardous area installations in Europe, adhere to the following CENELEC conditions for safe use. Location The RFT9739 must be installed outside the hazardous area. The transmitter installation must meet (at least) IP20 safety requirements, per IEC 529.
Before You Begin Getting Started continued 2.3 Switch settings Switches are shown in Figure 2-2, and described in the following sections. To access switches, remove the bottom cover of the transmitter housing. Normally, switch settings do not require adjustment. Mounting Figure 2-2.
Getting Started continued Security modes Switches 1, 2, and 3 are security switches, which enable the user to disable flowmeter zeroing, disable resetting of totalizers, and writeprotect all configuration and calibration parameters. Switch settings enable any of eight possible security modes. Different modes determine which functions are disabled and whether configuration and calibration parameters are write-protected.
Security mode 8 When transmitter security is set for mode 8, the transmitter meets security requirements for custody transfer described in National Institute of Standards and Technology (NIST) Handbook 44.
Getting Started continued To verify the transmitter is in security mode 8: Use the Scroll button to scroll through process variable screens to event register screens. If event register screens appear, the transmitter is in security mode 8. For more information about using the Scroll button and transmitter display, see Section 6.2, page 60. To make changes to configuration or calibration parameters once security mode 8 is entered: 1. Set switches 1, 2, and 3 to the OFF position. 2.
Before You Begin Getting Started continued Communication settings Switch 5 enables the user to choose the standard communication configuration or user-defined parameters. With switch 10 in the ON (CONFIG) position, switches 1 through 6 can be used for setting userdefined communication parameters. Mounting For RFT9739 software versions 3.
10 RFT9739 Rack-Mount Transmitter Instruction Manual
Transmitter Mounting General guidelines Power-Supply and Sensor Wiring The rack-mount RFT9739 meets DIN standard 41494, 19-inch configuration for control-room equipment. • Transmitter dimensions are shown in Figure 3-1, page 12. • Three transmitters fit into one 19-inch enclosure with a Eurocard 220 mm depth, as indicated in Figure 3-2, page 13. • When installing multiple transmitters in a single rack, 15 watts of forced-air cooling, per transmitter, is required.
Transmitter Mounting continued Figure 3-1. RFT9739 dimensions Dimensions in inches (mm) 5 17/32 (140.4) Back panel with DIN 41612 male Y-shaped screw terminals 2 19/32 (66) 13TE 5 37/64 (141.7) 5 25TE (127) 2 19/32 (66) 13TE With Y-shaped screw terminals 10 5/16 (281.9) 28TE Back panel with DIN 41612 male fast-on/solder terminals With fast-on/solder terminals 10 1/16 (255.6) 9 15/64 (234.6) 8 23/64 (212.3) 4X M2.5 x 11 4 13/16 (122.4) 4 3/8 (111.1) 5 3/64 (128.4) 3HE 3/16 (4.7) 47/64 (18.
Before You Begin Transmitter Mounting continued Figure 3-2. Rack-mount connector locations Dimensions in inches (mm) Getting Started 0TE 1 TE ≈ 5.08 mm 6TE – CN1 19TE – CN2 8 13/32 (213.5) 34TE – CN1 47TE – CN2 62TE – CN1 75TE – CN2 84TE Mounting 5 3/64 (128.4) 3HE Power-Supply and Sensor Wiring 19 (483) 5 37/64 (141.
Transmitter Mounting continued Figure 3-3. Space requirements for proper ventilation Dimensions in inches (mm) 5 3/64 (128.4) 3HE 1 22/32 (42.8) 1HE 5 3/64 (128.4) 3HE 1 22/32 (42.8) 1HE 5 3/64 (128.4) 3HE When installing multiple transmitters in a single rack, 15 watts of forced-air cooling, per transmitter, is required. Maintain sufficient air flow to keep the ambient temperature below 122°F (50°C).
3.2 Connectors Figure 3-4. Types of connectors Fast-on/solder connecter Y-Type connector Output Wiring Top CN1 or CN2 Front Power-Supply and Sensor Wiring Connectors CN1 and CN2 meet DIN standard 41612, Model F (male). • The positions of connectors CN1 and CN2 in a 19" rack are indicated in Figure 3-2, page 13. • See Chapter 4, page 17, for power-supply and sensor wiring instructions. • See Chapter 5, page 25, for output wiring instructions.
16 RFT9739 Rack-Mount Transmitter Instruction Manual
Power-Supply and Sensor Wiring General guidelines Getting Started 4.1 Before You Begin 4 WARNING Failure to comply with requirements for intrinsic safety if the sensor is installed in a hazardous area could result in an explosion. Mounting Sensor wiring is intrinsically safe. • Install the transmitter in a non-hazardous area. • For intrinsically safe sensor installations, use this document with Micro Motion UL or CSA installation instructions.
Power-Supply and Sensor Wiring continued Power-supply wiring Some European applications require installation of AC power-supply wiring to connector CN2, terminals D2 (AC+), D6 (AC–), and Z2 (GND). In Europe, before making AC power-supply wiring connections at CN2, contact the Micro Motion Customer Service Department. In Europe, phone +31 (0) 318 549 443. To install power-supply wiring, refer to Figure 4-1 and follow these steps: 1.
Before You Begin Power-Supply and Sensor Wiring continued Grounding CAUTION Getting Started Failure to comply with requirements for intrinsic safety if the sensor is installed in a hazardous area could result in an explosion. The transmitter must be properly grounded. Follow the instructions below to ground the transmitter. Table 4-1.
Power-Supply and Sensor Wiring continued Figure 4-2b. Grounding detail — hazardous-area sensor installations If national standards are not in effect, adhere to these guidelines for grounding: • Use copper wire, 14 AWG (2.5 mm²) or larger wire size. • Keep all ground leads as short as possible, less than 1 ohm impedance. • Connect I.S. grounds and power-supply ground directly to earth. Earth ground Figure 4-2c. Grounding detail — high-integrity I.S.
Fuses To access the AC-power fuse, remove the top cover. To access the DC-power fuse, remove the bottom cover. Locate the power board. The locations of the fuses on the board are indicated in Figure 4-3, page 21. 4.3 Changing power-supply voltage Getting Started Fuses for the power-supply input are located inside the transmitter housing on the power board. The transmitter has two fuses: one for an AC power supply and one for a DC power supply.
Power-Supply and Sensor Wiring continued 4.4 Sensor wiring The instructions in this section explain how to connect a fully prepared Micro Motion flowmeter cable to the RFT9739 and a sensor. The sensor can be a Micro Motion ELITE, F-Series, Model D, DL, or DT sensor. • The procedure for preparing Micro Motion flowmeter cable and cable glands is described in the instructions that are shipped with the cable. • Install cable and wiring to meet local code requirements. • Use Micro Motion color-coded cable.
Before You Begin Power-Supply and Sensor Wiring continued Table 4-2.
Power-Supply and Sensor Wiring continued Figure 4-6. Wiring to Model DT sensors Model DT sensor terminals Flowmeter cable RFT9739 terminals Maximum cable length 1000 ft.
Output Wiring General guidelines Getting Started 5.1 Before You Begin 5 WARNING Failure to comply with requirements for intrinsic safety if the sensor is installed in a hazardous area could result in an explosion. Mounting Output wiring is not intrinsically safe. • Keep output wiring separated from power-supply wiring and intrinsically safe sensor wiring. • Follow all output wiring instructions to ensure the transmitter and any connected devices will operate correctly.
Output Wiring continued Figure 5-1. Output terminals Table 5-1.
5.3 Primary and secondary mA outputs Mounting The mA outputs can produce a user-selected 0-20 or 4-20 mA current. (See "Milliamp output scaling," page 9.) • When configured to produce 4-20 mA current, the mA output loop can supply loop-powered process indicators. • For transmitters with software version 3.8 or higher, when configured to produce 4-20 mA current, the mA outputs are compliant with the NAMUR NE43 standard. (All RFT9739 transmitters shipped after November 1999 have software version 3.
Output Wiring continued Use RFT9739 terminals CN2-D30 and CN2-Z30 for the primary mA output. Use terminals CN2-D28 and CN2-Z28 for the secondary mA output. See Figure 5-3. • Primary and secondary mA output loops are isolated and floating. Additional grounding will result in optimum performance, and optimum HART communication on the primary mA output. Ensure that mA output loops are grounded properly, either at the transmitter end, or at the external device.
Connections for HART® communication devices Figure 5-4. HART® Communicator, ProLink® PC-Interface, and AMS modem connections Getting Started Figure 5-4 illustrates how to connect a HART Communicator, the ProLink PC-Interface adaptor, or an AMS modem to the RFT9739 for digital communication over the primary mA output. For information about using the HART Communicator or ProLink program, see the appropriate instruction manual. For information about using AMS software, see the AMS on-line help.
Output Wiring continued 5.4 Frequency outputs The RFT9739 frequency outputs include a frequency/pulse output, a dual-channel phase-shifted frequency output for custody transfer applications, and an optocoupler output. • The frequency output loops are isolated and floating from other circuits except the control output and external-zero input circuits. Ensure that frequency output loops are grounded properly, either at the transmitter end, or at the external device. • The frequency output circuit uses a 2.
Default configuration When the RFT9739 is shipped from the factory, the frequency/pulse output is internally powered by an isolated 15-volt source via a 2.2 kohm pull-up resistor. This internal current is limited to approximately 7 mA. See Figure 5-5. Getting Started Figure 5-5.
Output Wiring continued Configuration for constant current Applications with high capacitance loading will benefit by wiring the frequency/pulse output circuit to maintain a constant current source of 50 mA for any load between 0 and 220 ohms. This configuration renders the control output circuit inoperable, and could affect the optocoupler and dual-channel frequency outputs.
Configuration for open collector mode Mounting To configure the output for open collector mode, a resistor must be clipped as described below. This procedure will permanently alter the transmitter and cannot be reversed. • Clip resistor R5 and add an external DC power supply and a pull-up resistor. See Figure 5-8, page 34. • The pull-up resistor must be of sufficient value to limit loop current to less than 0.1 ampere, depending on the total loop resistance at the transmitter.
Output Wiring continued Figure 5-8. Frequency/pulse output wiring for open collector mode RFT9739 output terminals DC power supply Resistor (See note) FREQ+ (signal line) PLC or pulse counter RETURN (ground) Resistor must be of sufficient value to limit loop current to less than 0.1 ampere, depending on total loop resistance. Figure 5-9.
Before You Begin Output Wiring continued Figure 5-10.
Output Wiring continued Dual-channel frequency output The transmitter has a dual-channel, phase-shifted frequency output for custody transfer applications. The dual-channel frequency is derived from the frequency/pulse output, and represents the same flow rate as the frequency/pulse output. Each dual-channel frequency is always half the value of the frequency/pulse output. For example, if the frequency/pulse output is 4,000 Hz, each dual-channel output is 2,000 Hz.
Setting voltage level for VDE output requirements Mounting Power-Supply and Sensor Wiring Figure 5-12. RFT9739 back panel and power board Getting Started To set the voltage level to 30 volts to meet VDE requirements for the frequency/pulse output and dual-channel frequency output: 1. Remove the bottom cover of the transmitter housing. 2. Remove the back panel, and carefully pull it loose from the power board and the control board. See Figure 5-12. 3.
Output Wiring continued Figure 5-13. Jumper J10 on power board Power board Jumper J10 Figure 5-14.
Optocoupler output Use RFT9739 terminals CN2-D10, CN2-D12, and CN2-D4 for the optocoupler output. • Figure 5-15 illustrates the wiring connection from the optocoupler output to an auxiliary device. • Signal voltage is 0-2 VDC low, 16-30 VDC high, with a 0.01 ampere maximum sinking capability. Mounting Figure 5-15. Optocoupler output wiring Getting Started The transmitter has an externally powered passive optocoupler output in addition to the frequency/pulse and dual-channel frequency outputs.
Output Wiring continued 5.5 Control output The control output can indicate flow direction, transmitter zeroing in progress, faults, event 1 or event 2. For information on configuring the control output for events, see any of the following manuals or AMS on-line help: • Using the HART Communicator with Micro Motion Transmitters • Using ProLink Software with Micro Motion Transmitters • Using Modbus Protocol with Micro Motion Transmitters Use RFT9739 terminals CN2-Z24 and CN2-D26 for the control output.
Control output in open collector mode The RFT9739 provides current to the control output circuit. In applications where this current must be permanently suspended, and for receiving devices that require input voltage higher than approximately 10 volts, the control output circuit can be used in open collector mode. Power-Supply and Sensor Wiring CAUTION Clipping resistor R4 will eliminate the internal voltage source from the transmitter.
Output Wiring continued Figure 5-17. Control output wiring for open collector mode RFT9739 output terminals DC power supply Resistor (See note) CONTROL (signal line) Receiving device RETURN (ground) Resistor must be of sufficient value to limit loop current to less than 0.1 ampere, depending on total loop resistance. Figure 5-18.
Before You Begin Output Wiring continued Figure 5-19.
Output Wiring continued 5.6 Peripheral device wiring Table 5-2. Peripheral wiring diagrams The wiring diagrams listed in Table 5-2 illustrate connections from the transmitter to Micro Motion peripheral devices.
Before You Begin Output Wiring continued Figure 5-21a. Wiring to DRT with LED RFT9739 output terminals Getting Started DRT LED terminals Clip shields at this end Mounting Earth ground Power-Supply and Sensor Wiring Figure 5-21b.
Output Wiring continued Figure 5-22a. Wiring to FMS-3 with LED RFT9739 output terminals FMS-3 LED terminals Clip shields at this end Earth ground Figure 5-22b.
Before You Begin Output Wiring continued Figure 5-23. Wiring to NFC RFT9739 output terminals Getting Started NFC terminals Note 1 Mounting Note 2 Note 1 Note 2 Note 1 Power-Supply and Sensor Wiring Earth ground 1. Clip shields at this end. 2. This wire not terminated.
Output Wiring continued Figure 5-24a. Wiring to AC-powered NOC RFT9739 output terminals NOC terminals Note 1 Note 2 Note 1 Note 2 Earth ground Note 1 1. Clip shields at this end. 2. This wire not terminated. Figure 5-24b. Wiring to DC-powered NOC RFT9739 output terminals NOC terminals Note 1 Note 2 Note 1 Note 2 Note 1 1. Clip shields at this end. 2. This wire not terminated.
Before You Begin Output Wiring continued Figure 5-25a. Wiring to Model 3300 with screw-type or solder-tail terminals RFT9739 output terminals Getting Started Model 3300 terminals Mounting Clip shields at this end Figure 5-25b.
Output Wiring continued Figure 5-26.
Before You Begin Output Wiring continued 5.7 Pressure transmitter wiring CAUTION Getting Started Failure to comply with requirements for intrinsic safety if the sensor is installed in a hazardous area could result in an explosion. Pressure transmitter wiring is not intrinsically safe. Keep pressure transmitter wiring separated from intrinsically safe sensor wiring, power-supply wiring, and any other intrinsically safe wiring.
Output Wiring continued If the pressure transmitter requires a power supply less than or equal to 11.75 V, the RFT9739 can power the pressure transmitter. Use RFT9739 terminals CN2-Z6 and CN2-Z20. Terminal Z6 (P) is the power output to the pressure transmitter, and terminal Z20 (S) is the signal input to the RFT9739, as shown in Figure 5-27a. If the pressure transmitter requires a power supply greater than 11.75 V, or if other loop devices are required, an external source can power the pressure transmitter.
Before You Begin Output Wiring continued Figure 5-27b. Wiring to pressure transmitter — external power, analog input WARNING: Pressure transmitter wiring is not intrinsically safe Optional loop device(s) 24 VDC 4-20 mA RFT9739 output terminals Getting Started Power supply Pressure transmitter Mounting Power-Supply and Sensor Wiring Terminal CN2-D14 must be connected directly to the negative (–) terminal of the external power supply. Figure 5-27c.
Output Wiring continued 5.8 Remote-zero switch The transmitter can be zeroed from a remote switch. If the transmitter display indicates flow rate, this contact will zero the flowmeter. If the transmitter display indicates flow total, this contact will reset the flow total. • Section 6.4, page 65, describes the flowmeter zeroing procedure. • Section 6.5, page 67, describes the totalizer reset procedure.
Before You Begin Output Wiring continued 5.9 RS-485 multidrop network Getting Started The RFT9739 can be configured to communicate for any one of the following options: • HART protocol over the RS-485 standard • HART protocol over the Bell 202 standard • Modbus protocol over the RS-485 standard • Modbus protocol over the RS-485 standard and HART protocol over the Bell 202 standard For communications configuration instructions, see "Communication configuration mode," page 61.
Output Wiring continued Figure 5-29. RS-485 wiring One RFT9739 and a host controller Host controller A See note See note B Z22 D22 RFT9739 Multiple RFT9739s and a host controller Host controller A See note See note B Z22 D22 Z22 D22 RFT9739 Z22 RFT9739 D22 RFT9739 For long-distance communication, or if noise from an external source interferes with the signal, install 120-ohm ½-watt resistors across terminals of both end devices. 5.
Figure 5-30. Typical HART® network wiring RFT9739 field-mount PV+ 17 PV– 18 RFT9739 rack-mount PV+ PV– CN2- CN2Z30 D30 SMART FAMILY transmitter SMART FAMILY transmitter DC source required for other HART 4-20mA passive transmitters 250 ohm load 4-20mA IFT9701 R-Series 24 DC Power-Supply and Sensor Wiring 4-20mA Mounting HART Communicator, ProLink PCI, or AMS modem Getting Started To connect the transmitter to a Bell 202 network, use RFT9739 terminals CN2-Z30 and CN2-D30. See Figure 5-30.
Output Wiring continued 5.11 Security wiring Security wiring enables the use of remote (keyed) switches to disable the front-panel Scroll and Reset buttons. Scroll inhibit To install a remote (key) switch that disables the front-panel Scroll button, connect a signal line to terminal CN2-D16 (SCROLL INH) and a ground wire to terminal CN2-D14 (SIGNAL GND). See Figure 5-31.
Startup Initialization Getting Started 6.1 Before You Begin 6 For DC-powered transmitters, at startup, the transmitter power source must provide a minimum of 2 amperes of inrush current at a minimum of 12 volts at the transmitter's power input terminals. If the startup voltage is pulled below 12 VDC, the transmitter could remain in the startup loop indefinitely.
Startup continued 6.2 Using the display The RFT9739 display enables the user to: • View process variables, flow totals and inventory levels, and status messages (see page 60) • Set communication parameters (see page 61) • Zero the flowmeter (see page 65) • Reset the transmitter's flow totalizers (see page 67) Use the Scroll and Reset buttons to operate the display. Process variables mode After power to the transmitter is turned off and on, or "cycled," the transmitter is in the process variables mode.
If a message exists, the blinking "Msg" (message) indicator appears in the bottom right corner of each screen, indicating any of the following conditions: • Power to the transmitter has been cycled. • The flowmeter has been zeroed. • An error condition exists. Mounting To read a message, scroll past all process variable screens to the message screen (see Table 6-1, page 60). Uncorrected status conditions remain in the message queue.
Startup continued M1 — Baud rate To set the baud rate: 1. Press and release the Scroll button to view each baud rate option. Choose from 1200, 2400, 4800, 9600, 19200, or 38400 baud. 2. Press and hold the Reset button to select the displayed baud rate. Release the Reset button when the display stops flashing. 3. When the selected baud rate flashes again, press and release the Reset button to move to the M2 screen. M2 — S=Stop bits, P=Parity To set the stop bits and parity: 1.
CAUTION Getting Started M3 — Data bits and protocol The M3 screen enables selection of 7-bit or 8-bit mode for Modbus protocol, or 8-bit mode for HART protocol. • The HART protocol can use either the Bell 202 or RS-485 physical layer. • Using HART protocol over the primary mA output requires the Bell 202 physical layer. Before You Begin Startup continued Changing the protocol will cause the transmitter to restart, which could result in switching of flow loop control devices.
Startup continued 6.3 Custody transfer event registers Event registers are provided for security requirements for custody transfer applications. When the transmitter is configured for security mode 8 (see Section 2.3, page 5), the transmitter meets security requirements for custody transfer described in National Institute of Standards and Technology (NIST) Handbook 44. Custody transfer event registers record one change for each change "session.
Before You Begin Startup continued 6.4 Flowmeter zeroing CAUTION Zero the flowmeter before putting it in operation. Flowmeter zeroing establishes flowmeter response to zero flow and sets a baseline for flow measurement. Zeroing procedure Mounting To zero the transmitter, follow these steps: 1. Prepare the flowmeter for zeroing: a. Install the sensor according to the sensor instruction manual. b. Apply power to the transmitter, then allow it to warm up for at least 30 minutes. c.
Startup continued During the zeroing procedure, the display reads "Sensor OK CAL IN PROGRESS". The default zero time will range from 20 to 90 seconds, depending on the sensor. After flowmeter zeroing has been completed, the mass flow rate or volume flow rate screen reappears, and the blinking "Msg" (message) indicator appears in the lower right corner. To clear the message indicator, scroll past the volume inventory screen to the message screen, which should read "Sensor OK *ERROR CLEARED*".
Before You Begin Startup continued 6.5 Totalizer control Getting Started The transmitter's mass totalizer and volume totalizer can be started, stopped, and reset using any of the following: • A HART Communicator • ProLink software version 2.4 or higher • A Modbus device • AMS software In addition, the totalizer can be reset from the RFT9739 front panel. WARNING When the totalizers are stopped, the frequency/pulse output is disabled.
Startup continued Table 6-2.
Troubleshooting General guidelines Getting Started 7.1 Before You Begin 7 Troubleshooting a Micro Motion flowmeter is performed in two parts: 1. Tests of wiring integrity 2. Observation of the transmitter's diagnostic tools, which include diagnostic messages and fault output levels. CAUTION Mounting During troubleshooting, the transmitter could produce inaccurate flow signals. Set control devices for manual operation while troubleshooting the flowmeter. Output Wiring 7.
Troubleshooting continued Diagnostic messages The transmitter provides diagnostic messages, which can be viewed on the display of a HART Communicator, or in the Status window of the ProLink software program.
Before You Begin Troubleshooting continued Figure 7-1. HART® Communicator, ProLink® PC-Interface, and AMS modem connections Rack-mount RFT9739 Getting Started HART socket (same circuit as PV terminals) HART Communicator, ProLink PCI, or AMS modem PV+ R3 (Note 3) HART socket or PV terminals R2 Mounting R1 (Note 1) DCS or PLC with internal resistor (Note 2) PV– Power-Supply and Sensor Wiring 1. If necessary, add resistance in the loop by installing resistor R1.
Troubleshooting continued Fault detection indicates an interruption in the functional integrity of the sensor and the transmitter, including the sensor pickoff coils, drive coil, and RTD. Faults, such as a short or an open circuit, are detected by the HART device. The transmitter runs continuous self-diagnostics. If these diagnostics reveal a failure, the HART device displays an error message. Self-testing allows the transmitter to check its own circuitry.
Before You Begin Troubleshooting continued 7.4 Not configured After the user performs a master reset, the message display reads "NOT CONFIGURED", indicating the flowmeter requires complete characterization and reconfiguration. Use a HART Communicator or the ProLink program to configure the transmitter. To perform a master reset, see Section 7.7, page 79.
Troubleshooting continued Overrange and sensor error messages If a sensor failure occurs, if the sensor cable is faulty, or if measured flow, measured temperature, or measured density go outside the sensor limits, the display produces one of the following messages: • "Sensor Error" • "Drive Overrng" • "Input Overrange" • "Temp Overrange" • "Dens Overrng" To interpret overrange and sensor error messages, use the transmitter fault output levels, a digital multimeter (DMM) or other reference device, and refer
Before You Begin Troubleshooting continued Table 7-3.
Troubleshooting continued Informational messages Information messages are described below. Table 7-5, page 77, summarizes informational messages and lists typical corrective actions. Power Reset indicates a power failure, brownout, or power cycle has interrupted operation of the transmitter. The transmitter has a nonvolatile memory, which remains intact despite power interruptions. Cal in Progress indicates flowmeter zeroing in progress or density calibration in progress.
Before You Begin Troubleshooting continued Table 7-5. Using informational messages Message Power Reset Zero Too Noisy Security mode changed from mode 8 Burst Mode mA 1 Fixed mA 2 Fixed 7.
Troubleshooting continued 7.6 Wiring For transmitter wiring instructions, refer to Chapter 4, page 17, and Chapter 5, page 25. Wiring problems are often incorrectly diagnosed as a faulty sensor. At initial startup of the transmitter, always check the following: 1. Proper cable, and use of shielded pairs 2. Proper wire termination a. Wires on correct terminals b. Wires making good connections at transmitter terminals c. Wires making good connections at the sensor terminals d.
7.7 Master reset Table 7-7, page 80, lists master reset defaults for characterization and configuration variables. Getting Started Use the switches on the transmitter control board to perform a master reset (see Figure 1-1, page 2, for the location of the control board).
Troubleshooting continued Table 7-7. Default values after a master reset Characterization variables Flow calibration factor Density Density A K1 density constant Density B K2 density constant Density temperature coefficient FD density constant Temperature calibration factor Default 1.00005.13 Default 1.0 1.0 1.0 0.0000 g/cc 5000.00 1.0000 g/cc 50000.00 4.44% per 100°C 0.000 1.00000T0000.
Before You Begin Troubleshooting continued Additional information about troubleshooting For more information about troubleshooting the RFT9739 transmitter, see any of the following instruction manuals or AMS on-line help: • Using the HART Communicator with Micro Motion Transmitters • Using ProLink Software with Micro Motion Transmitters • Using Modbus Protocol with Micro Motion Transmitters 7.9 Customer service For technical assistance, phone the Micro Motion Customer Service Department: • In the U.S.
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Appendix A RFT9739 Specifications Performance specifications Sensor model Mass flow accuracy* ELITE liquid gas ±0.10% ± [(zero stability / flow rate) x 100]% of rate ±0.50% ± [(zero stability / flow rate) x 100]% of rate F-Series liquid gas ±0.20% ± [(zero stability / flow rate) x 100]% of rate ±0.70% ± [(zero stability / flow rate) x 100]% of rate D (except DH38), DT and DL liquid gas ±0.15% ± [(zero stability / flow rate) x 100]% of rate ±0.
RFT9739 Specifications continued Functional specifications Output signals Analog Two independently configured analog outputs, designated as primary and secondary, can represent mass or volumetric flow rate, density, temperature, event 1 or event 2. With a pressure transmitter, can also provide indication for pressure. Internally powered, can be selected as 4-20 mA or 0-20 mA current outputs. Outputs cannot be changed from active to passive. Galvanically isolated to ±50 VDC, 1000 ohm load limit.
RFT9739 Specifications continued Optocoupler output The optocoupler is an externally powered output. Signal voltage: low level 0-2 VDC, high level 16-30 VDC. Maximum signal current 0.01 amp. Maximum capacitive load 150 nF at 10 kHz. Output is derived from the primary frequency, and represents the same process variable as the frequency/pulse output. The output complies with VDE/VDI 2188. Control One control output can represent flow direction, fault alarm, zero in progress, event 1 or event 2.
RFT9739 Specifications continued API gravity API gravity references to 60°F (15°C). Uses correlation based on API equation 2540 for Generalized Petroleum Products. Accuracy of corrected density calculation relative to API-2540 from 0 to 300°F: Process fluid g/cc kg/m3 °API Diesel, heater, and fuel oils ±0.0005 ±0.5 ±0.2 Jet fuels, kerosenes, and solvents ±0.002 ±2.0 ±0.5 Crude oils and JP4 ±0.004 ±4.0 ±1.0 Lube oils ±0.01 ±10 ±2.0 Gasoline and naphthenes ±0.02 ±20 ±5.
RFT9739 Specifications continued Output testing Output testing can be conducted with a HART Communicator, the ProLink program, a Modbus host, or AMS software. Current source Transmitter can produce a user-specified current between 0 and 22 mA on a 0-20 mA output, or between 2 and 22 mA on a 4-20 mA output. Frequency source Transmitter can produce a user-specified frequency between 0.1 and 15,000 Hz. Display Display is a 2-line, 16-character, alphanumeric liquid crystal display (LCD).
RFT9739 Specifications continued Environmental effects EMI effect Rack-mount RFT9739 transmitters feature enhanced EMI immunity and the requirements of the EMC directive 89/336/EEC per EN 50081-1 (January 1992) and EN 50082-2 (March 1995) when operated at nominal rated flow measurement range. Enhanced EMI immunity is required for transmitters installed in the European Community after 1 January 1996.
RFT9739 Specifications continued Physical specifications Housing 19-inch rack, European standard DIN 41494: 128 mm (3HE) high x 142 mm (28TE) wide x 231.9 mm deep. Electrical connections Two connectors per DIN 41612, type F. Choose either fast-on (wire-pin) solder connectors (standard) or Y-shaped screw-terminal connectors (optional). Sensor connectors and output connectors are not interchangeable. Weight 4.4 lb (2.
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Appendix B Ordering Information RFT9739 model number matrix Code Transmitter model RFT9739 RFT9739 transmitter Code Housing options R Rack-mount Code Power supply 1 110/115 VAC 2 220/230 VAC 12 to 30 VDC 3 Code Configuration E Enhanced EMI immunity (CE compliant) — requires installation with Micro Motion cable type CPLTJ or CFEPJ installed in conduit, or type CPLTS, CPLTA, CFEPS, or CFEPA installed with approved cable glands Code Approval M U C B Micro Motion standard — no approvals UL
Ordering Information continued Micro Motion instruction manuals 92 Sensors • ELITE® Sensor Instruction Manual • R-Series Flowmeter Instruction Manual • R-Series Flowmeter with FOUNDATION™ fieldbus • T-Series Flowmeter Instruction Manual • F-Series Sensor Instruction Manual • Model D and DT Sensors Instruction Manual • Model DL Sensor Instruction Manual Transmitters • ALTUS™ Installation Manual • ALTUS™ Detailed Setup Manual • ALTUS™ Density Applications Manual • ALTUS™ Net Oil Computer Manual • Install
Appendix C Theory of Operation The flow tubes of the Coriolis mass flow sensor are driven to vibrate at their natural frequency by a magnet and drive coil attached to the apex of the bent tubes (see Figure C-1). An AC drive control amplifier circuit in the transmitter reinforces the signal from the sensor’s left velocity pickoff coil to generate the drive coil voltage.
Theory of Operation continued Mass flow measurement The vibrating motion of the flow tube, combined with the momentum of the fluid flowing through the tubes, induces a Coriolis force that causes each flow tube to twist in proportion to the rate of mass flow through the tube during each vibrational cycle. Since one leg of the flow tube lags behind the other leg during this twisting motion, the signals from sensors on the two tube legs can be compared electronically to determine the amount of twist.
Theory of Operation continued ρo = ρs * exp[– α∆T (1 + 0.8α∆T )] where: ρo ρs ∆T α = = = = operating density standard density temperature difference from base (standard) temperature K0 /(ρs )2 + K1 /ρs , where K0 and K1 are constants The equation is iterative, and requires significant calculation time to generate one reading. The transmitter software contains a simplification of this correlation to maximize sampling frequency of the measurement. Accuracy of the Micro Motion correlation is ±0.
Theory of Operation continued Pressure compensation A pressure transmitter can be connected to the RFT9739 for pressure compensation. The RFT9739 or an external source can supply power to the pressure transmitter. If the input is configured to indicate gauge pressure, the transmitter uses the pressure input to account for effects of pressure on the flow tubes of certain sensors. Not all sensors are affected by pressure.
Appendix D HART Communicator Menu Trees ® Figure D-1.
HART Communicator Menu Trees continued ® Figure D-1.
HART Communicator Menu Trees continued ® Fast key Function/variable Analog output 1 Analog output 2 Analog 1 range values Analog 2 range values Auto zero Basic setup Calibration Characterize sensor Control output Date Density calibration factors Density calibration procedure Density variables Descriptor Device ID Device information Detailed setup Device information Diagnostics and service Events Fault output Field device variables Final assembly number Fix analog output 1 Fix analog output 2 Fix frequency
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Appendix E Transmitter Version Identification To identify a Version 3 RFT9739 rack-mount transmitter: A Version 3 transmitter has a back-panel that is different from older versions. For comparison, refer to Figure E-1. • The Version 3 back panel has text between connectors CN1 and CN2, which reads BACKPLANE RFT9739RM PHASE 2/PHASE 3. • The Version 2 back panel does not have text between connectors CN1 and CN2 to identify the transmitter version.
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Appendix F Replacing Older Transmitters Step 1 Disconnecting the old transmitter WARNING Hazardous voltage can cause severe injury or death. Shut off power before disconnecting the transmitter. CAUTION Process control will stop when the transmitter is disconnected. Set control devices for manual operation before disconnecting the transmitter. Follow these steps to wire the RFT9739 in place of the old transmitter: a. Shut off power to the transmitter. b. Open the transmitter wiring compartment covers.
Replacing Older Transmitters continued Step 2 Determining type of RTD in the sensor Determine whether the sensor has a platinum or copper RTD (resistance temperature detector). The type of RTD determines how the transmitter and sensor must be wired and configured. All sensors shipped after October 1986 have platinum RTDs. For older sensors, or if the date of manufacture is not known, follow these steps to determine the sensor's RTD type: a.
Replacing Older Transmitters continued Step 3 Installing the RFT9739 transmitter WARNING Hazardous voltage can cause severe injury or death. Shut off power before disconnecting the transmitter. Follow these instructions to mount and wire the new RFT9739 transmitter: a. Mount the RFT9739 transmitter in accordance with the instructions in Chapter 3, page 11. b. Connect power-supply wiring and ground wires to the RFT9739 transmitter in accordance with the instructions in Chapter 4, page 17. c.
Replacing Older Transmitters continued Figure F-2. RE-01 Remote Electronics Unit terminals Table F-2. RE-01 to RFT9739 terminal conversions Take the wire from RE-01 terminal number: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 [1] ...
Replacing Older Transmitters continued Figure F-3. RFT9712 Remote Flow Transmitter terminals Table F-3. RFT9712 to RFT9739 terminal conversions Take the wire from RFT9712 terminal number: 0 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 21 22 23 24 25 26 [1] [2] ...
Replacing Older Transmitters continued Figure F-4. RFT9729 Remote Flow Transmitter terminals Table F-4. RFT9729 to RFT9739 terminal conversions Take the wire from RFT9729 terminal number: CN1-8d CN1-10d CN1-12d CN1-14d CN1-16d CN1-18d CN1-20d CN1-22d CN1-24d CN1-26d CN2-2d or 6z CN2-2b CN2-2z or 4bdz[3] CN2-6b CN2-8b CN2-10b CN2-12b CN2-14b CN2-16b CN2-18b CN2-20b CN2-22b CN2-24b CN2-26b CN2-28b [1] [2] [3] ...
Replacing Older Transmitters continued Step 4 Characterizing sensors with copper RTDs CAUTION Failure to characterize a sensor with a copper RTD will cause measurement error. If the sensor has a copper RTD, the flow calibration factor programmed into the transmitter must be modified to ensure accurate flow measurement. Replace the second decimal point in the flow calibration factor with the letter "c". Example: Calibration factor with platinum RTD: 63.1905.13 Calibration factor with copper RTD: 63.
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Appendix G Return Policy General guidelines Micro Motion return procedures must be followed for you to meet the legal requirements of applicable U.S. Department of Transportation (DOT) regulations. They also help us provide a safe working environment for our employees. Failure to follow these requirements will result in your equipment being refused delivery. To return equipment, contact the Micro Motion Customer Service Department for return procedures and required documentation: • In the U.S.A.
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Index Page numbers in bold indicate illustrations. A About this manual 1 Accuracy 83 Agency approvals approved areas 88 hazardous area installation 3 order an approved transmitter 91 Ambient temperature limits 87 AMS 4 connecting to transmitter 29 zeroing procedure 65 API gravity 86 Approvals. See agency approvals Asset Management Solutions 4. See also AMS B BASIS sensor.
Index continued "mA fixed" 76 "mA saturated" 74–75 "Msg" 59 "not configured" 73 "power reset" 76 "RAM error" 73 "RTI error" 73 "security breach" 76 "sensor error" 74–75 "slug flow" 74–75 "temp overrange" 74–75 "xmtr failed" 73 "zero error" 76 Display 60–63 communication configuration 61–63 custody transfer event registers 64 process variables mode 60 screens 60 security mode 8 7–8 specifications 87 DL sensor.
Index continued mA outputs 27–29 AMS modem 29 Bell 202 multidrop network 56 fault indication 69 HART Communicator 29 master reset default value 80 performance 27 ProLink PC interface 29 rangeability specification 84 scaling 9 security mode 8 7 specification 84 switches 5 temperature effect on 88 test 72, 87 trim 72 wiring 27–29, 28 Master reset default characterization and configuration values 80 procedure 79 security mode 8 7–8 Menu trees for HART Communicator 97–99 fast key codes 99 Message display.
Index continued ProLink program communication configuration using switches 5 connecting to transmitter 29, 29 custody transfer event registers 64 diagnostic messages 70 instruction manual 92 interrogation with 70–72 master reset 79–80 troubleshooting with 70–72 R Rack mounting about 1 connectors 15 dimensions 12–13 Rangeability mA outputs 84 Repeatability 83 Reset inhibit 58 Return policy 111 RFT9739 transmitter about 1 characterization and calibration 4 identify version 101 model number 91 ordering a tran
Index continued Temperature effect on transmitter 88 limits 87 Terminals.
Index continued ProLink PC interface 29 remote-zero switch 54 RS-485 network 56 security 58 sensors DT sensor 24 ELITE 23 ELITE sensor 23 F-Series, D, DL sensor 23 grounding 17 instruction manuals 92 output 25–58 general guidelines 25 power supply 17–18 118 pressure transmitter 51–53 sensor 23 sensor connections 22–24 diagrams 24 general guidelines 17 troubleshooting 78 Z Zero button security modes 6 Zero failure 66 Zeroing 65–66 failure 66, 76 security 5 security modes 6 Zeroing procedure 65 RFT9739 Ra
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