Micro Motion Configuration Manual: RFT9739 Field-Mount Transmitter for Commercial Trade | Micro Motion Manuals & Guides
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
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