Configuring the RFT9739
Field-Mount Transmitter for
Commercial Trade
Introduction
Securing the transmitter
configuration
These instructions explain how to configure a Version 3 field-mount
RFT9739 transmitter for use in custody transfer and other commercial
trade applications.
For commercial trade applications, the transmitter has security switches
and an optional lockout clamp.
• Security switches enable the user to write-protect all configuration and
calibration parameters and/or disable flowmeter zeroing and resetting
of totalizers.
• The lockout clamp prevents access to the transmitter's wiring terminals
and electronics module.
Before securing the transmitter configuration or installing the
lockout clamp, make sure the transmitter has been properly
installed and the flowmeter has been zeroed, according to the
appropriate sections in the instruction manual that is shipped with
the transmitter.
A Version 3 field-mount RFT9739 has three security switches.
• To access switches, unscre w the cov er fro m the base of th e transm itter ,
then unlatch the hinged cover of the electronics module.
• Figure 1 illustrates the switches, which are labeled SECURE 1,
SECURE 2, and SECURE 3.
Figure 1. Switches
Switches 1 through 10 at left
are shown in the OFF position.
Security modes
Table 1. Security modes
Switches 1, 2, and 3 enable the user to disable flowmeter zeroing,
disable resetting of totalizers, and write-protect 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. The
following functions can be disabled:
• Flowmeter zeroing using digital communications
• Flowmeter zeroing using the zero button and, if the transmitter has a
display, the Scroll and Reset knobs
• Totalizer reset, with flow, using digital communications
• Totalizer reset, with flow, using the Scroll and Reset knobs, if the
transmitter has a display
• Totalizer control, with zero flow, using digital communications
• Totalizer control, with zero flow, using the Scroll and Reset knobs, if the
transmitter has a display
Table 1 lists the parameters that are write-protected and functions that
are disabled for each security mode. Security modes 1 through 7 are
entered immediately when switches 1 through 3 are set.
For information about security mode 8, see page 3.
Switch settings
Switch 1
Switch 2
Switch 3
Function/
parameter
Flowmeter
zeroing
Totalize r
control,
no flow
Totalize r
control,
with flow
Configuration and
calibration parameters
(1)
Changing the settings of switches 1, 2, and 3 does not immediately implement security m ode 8. For more information about
security mode 8, see page 3.
Performed
with
Zero but t on or
Reset knob
HART or
Modbus
Scroll and
Reset knobs
HART or
Modbus
Scroll and
Reset knobs
HART or
Modbus
Mode
1
OFF
OFF
OFF
Mode
1
Mode
2
OFF
OFF
ON
Mode
2
Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Disabled Disabled Disabled Disabled
Disabled Disabled Disabled Disabled Disabled Disabled Disabled
Mode
3
OFF
ON
OFF
Mode
3
Disabled Disabled Disabled Disabled
Disabled Disabled Disabled
Disabled Disabled Disabled Disabled Disabled Disabled
Write-
protected
Mode
4
OFF
ON
ON
Mode
4
Write-
protected
Mode
5
ON
OFF
OFF
Mode
5
Write-
protected
Mode
6
ON
OFF
ON
Mode
6
Write-
protected
Mode
7
ON
ON
OFF
Mode
7
Write-
protected
protected
Mode
(1)
8
ON
ON
ON
Mode
8
Write-
2
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.
Once the transmitter is configured for security mode 8, the security
mode cannot be changed unless a master reset is performed. A master
reset causes all configuration parameters to return to their default
values, and
requires complete characterization and reconfiguration
of the trans m i tt e r.
If the user attempts to enter a new security mode or change the
transmitter configuration after entering security mode 8:
• Internal totalizers stop counting
• The frequency/pulse output goes to 0 Hz
• mA outputs go to 4 mA
• The optional display reads, "SECURITY BREACH; SENSOR OK"
• Custody transfer event registers record each change made to defined
configuration and calibration parameters. (For a list of these
parameters, see the instruction manual that is shipped with the
transmitter.)
The security breach continues, and totalizers and outputs remain
inactive, until the transmitter is reconfigured for security mode 8, or until
a master reset has been performed. Custody transfer ev ent registers are
not affected by a master reset. For information about event registers, or
to perform a master reset, see the instruction manual that is shipped
with the transmitter.
Milliamp output trim, milliamp output test, and frequency/pulse output
test procedures cannot be performed after security mode 8 is entered.
Before entering security mode 8,
procedures, if necessary , as described in any of the following manuals or
in AMS on-line help:
•
Using the HART Communicator with Micro Motion Transmitters
•
Using ProLink Software with Micro Motion Transmitters
perform milliamp trim and/or test
• Using Modbus Protocol with Micro Motion Transmitters
3
To enter security mode 8:
1. Note the position of switch 5.
2. Set switch 10 to the ON position. The diagnostic LED on the
transmitter electronics module flashes on 3 times and pauses, which
indicates the transmitter is in the configuration mode.
3. Set switches 1, 2, and 3 to the ON position.
4. Set switches 4, 5, and 6 to the OFF position.
5. Locate the ZERO button on the transmitter electronics module.
6. Press and hold the ZERO button for five seconds. The diagnostic LED
will remain on for two to three seconds to indicate security mode 8
has been entered.
7. Reset switch 5 to the desired position (as noted in Step 1).
8. Reset switch 10 to the OFF (OPERATE) position. The diagnostic LED
flashes on once per second (25% on, 75% off), which indicates the
transmitter is in the normal operating mode.
9. Leave switches 1, 2, and 3 in the ON position to remain in security
mode 8.
To verify the transmitter is in security mode 8:
• If the transmitter has a display, use the Scroll knob to scroll through
process variable screens to event register screens. If event register
screens appear, the transmitter is in security mode 8.
• If the transmitter does not have a display:
1. Configure the transmitter.
2. Wait until the diagnostic LED blinks ON once per second.
3. Move switch 1, 2, or 3 to the OFF position.
4. If the diagnostic LED blinks ON 4 times per second, the transmitter
is in security mode 8.
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. Make changes through digital communication or, if the transmitter has
a display, with the Scroll and Reset knobs. Custody transfer event
registers record changes made to defined configuration and
calibration parameters. For more information about digital
communications, see 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
3. Reset switches 1, 2, and 3 to the ON position.
To reenter security mode 8:
If security mode 8 has been established previously, and the security
mode has been temporarily changed, it is not necessary to use the
ZERO button to reenter security mode 8. In such a case, resetting
switches 1, 2, and 3 to the ON position will reenter security mode 8
immediately.
If a master reset has been performed, it is necessary to use the ZERO
button method to reenter security mode 8. See the procedure at the top
of this page.
4
Lockout clamp installation
procedure
The lockout clamp kit includes a clamp, a mounting screw, and a cap, as
shown in Figure 2.
• For custody transfer applications in the United States and Europe, the
clamp, mounting screw, and cap are required (see Figure 2).
• To avoid losing individual parts, install the mounting screw and lockout
clamp, then make sure a weights and measures inspector immediately
installs the cap and performs the inspection. Once installed, the cap
can only be removed by the inspector.
Figure 2. Parts in lockout kit
Clamp
Mounting screw
Cap
To install the lockout clamp, refer to Figure 3, page 6, and follow these
steps:
1. Make sure the transmitter cover is securely screwed onto the trans-
mitter base.
2. Insert the mounting screw through the largest hole in the clamp, so
the screw head fits into the recess in the clamp.
3. On the transmitter, find the threaded hole for the mounting screw. The
hole is located in the transmitter base, on the side opposite from the
conduit openings.
4. Position the clamp so the groove in the clamp fits over the lip on the
cover of the transmitter and the mounting screw aligns with the base.
5. Using a 5/32-inch Allen wrench (4 mm hexagonal key wrench), screw
the mounting screw into the threaded hole in the transmitter base.
The mounting screw is a 5 mm screw.
6. The weights and measures inspector must put the cap in place over
the screw head, so the holes in the cap align with the two small holes
in the clamp. To complete the installation, the inspector runs a wire
seal through the aligned holes in the clamp and cap, then secures the
seal.
5
Figure 3. Installation diagram for lockout clamp
Transmitter
cover
Lip
Clamp
Mounting screw
Cap
Threaded hole
Transmitter
base
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