Emerson Process Management 3420 Carbon Monoxide Alarm User Manual


 
Reference, Installation, and Operations Manual Section 5: Startup and meter configuration
3-9000-743 Rev S June 2013
Meter configuration using Daniel MeterLink 129
HART Output Page
Series 100 Plus Option
Board
See Section 5.6.9
The HART Output Page allows you to configure the HART output of the Daniel Ultrasonic meter.
This page is only displayed if the HART Output was selected on the Startup Page. If the meter does
not support the HART protocol on its analog output, the HART Output selection on the Startup
Page will be disabled and this dialog will not be displayed as you go through the Field Setup
Wizard.
Process variables - These are the four dynamic HART variables which you can configure for
the Daniel Ultrasonic meter. The Primary variable is set to match the Content set for Current
output 2. If you want a different Primary variable, you will need to go back to the Current
Output Page and select a different selection for its Content control for Current output 2.
Identification - These are the common variables in HART devices used to identify the partic-
ular device.
Tag - This is the tag name for the HART device which may be used by host systems to
uniquely identify the meter. The tag may be up to 8
characters in length.
Date - This is a numeric date value that must be between 0 and 1677215.
Message - This is a string value that can be no more than 32 characters in length.
Descriptor - This is a string value that can be no more than 16 characters in length.
Final assembly number - This is a numeric value that must be between 0 and 1677215.
Polling address - This is the HART address for the meter. By default the meter is 0 but the
address can range from 0 to 15.
HART units - These controls allow you to configure the units that values will be read in over
the HART interface.
Digital Outputs Page
See Section 5.6.10
The Digital Outputs Page allows you to configure the digital outputs for Daniel Mark III Ultrasonic
Gas Flow Meter. This page is only displayed if connected to a Daniel 3410 Series Gas Ultrasonic
Flow Meter and Digital outputs was selected on the Startup Page.
Content:
Select the function for which the digital output should be configured. Available options are
validity and direction.
Inverted operation:
This option is useful if the output of the ultrasonic meter is reversed from what a flow
computer is expecting. Selecting the check box will invert the digital output. This means
that if the output normally outputs a HIGH for a TRUE condition, selecting this check box
will change the output to output a LOW for a TRUE condition.
Table 5-11 Daniel MeterLink Field Setup Wizard
Page Description