Transmitter operation
8 Transmitter operation
Topics covered in this chapter:
•
•
•
•
•
•
•
•
8.1
Process variable
Flow rate
Density
Temperature
Tube frequency
Pickoff voltage
Drive gain
Record the process variables
Micro Motion suggests that you make a record of specific process variable measurements, including the acceptable range of measurements, under normal operating conditions. This data will help you recognize when the process variables are unusually high or low, and may help you better diagnose and troubleshoot application issues.
Procedure
Record the following process variables, under normal operating conditions:
Typical average
Measurement
Typical high Typical low
Configuration and Use Manual
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Transmitter operation
8.2
8.2.1
View process variables
Display
ProLink II
Scroll to the desired process variable. If AutoScroll is enabled, you can wait until the process variable is displayed. See
Section 8.2.1
for more information.
ProLink
> Process Variables
ProLink III
View the desired variable on the main screen under Process Variables. See
Section 8.2.2
for more information.
Field Communicator Overview > Shortcuts > Variables > Process Variables
Overview
Process variables provide information about the state of the process fluid, such as flow rate, density, and temperature, as well as running totals. Process variables can also provide data about flowmeter operation, such as drive gain and pickoff voltage. This information can be used to understand and troubleshoot your process.
View process variables using the display
View the desired process variable(s).
If you are using the transmitter display, by default the display shows the mass flow rate, mass total, volume flow rate, volume total, temperature, density, and drive gain. The display reports the abbreviated name of the process variable (for example, DENS for density), the current value of that process variable, and the associated unit of measure (for example, G/CM3).
If desired, you can configure the display to show other process variables, such as totalizers and inventories.
If Auto Scroll is enabled, the display cycles through the configured display variables, showing each display variable for a user-specified number of seconds.
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Micro Motion ® Model 1700 Transmitters with Analog Outputs
8.2.2
Transmitter operation
Figure 8-1: Transmitter display features
A
B
H
G
C
F
D
E
A. Status LED
B. Display (LCD panel)
C. Process variable
D. Scroll optical switch
E. Optical switch indicator: turns red when either Scroll or Select is activated
F. Select optical switch
G. Unit of measure for process variable
H. Current value of process variable
View process variables using ProLink III
When you connect to a device, the process variables are displayed on the main screen of
ProLink III.
Procedure
View the desired process variable(s).
Tip
ProLink III allows you to choose the process variables that appear on the main screen. You can also choose whether to view data in Analog Gauge view or digital view, and you can customize the gauge settings. For more information, see the ProLink III user manual.
Configuration and Use Manual
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Transmitter operation
8.3
View transmitter status using the status LED
The status LED shows the current alarm condition of the transmitter. The status LED is located on the face of the transmitter.
Observe the status LED.
• If your transmitter has a display, you can view the status LED with the transmitter housing cover in place.
• If your transmitter does not have a display, it does not have a status LED. This option is not available.
To interpret the status LED, see the following table.
Restriction
If LED Blinking is disabled, the status LED will flash only during calibration. It will not flash to indicate an unacknowledged alarm.
Table 8-1: Status LED states
LED behavior Alarm condition
Solid green No alarm
Flashing green No active alarm
Solid yellow
Flashing yellow
Solid red
Flashing red
Active low-severity alarm
Active low-severity alarm
Active high-severity alarm
Active high-severity alarm
Description
Normal operation
Previously active alarm has not been acknowledged
Alarm has been acknowledged
Alarm has not been acknowledged
Alarm has been acknowledged
Alarm has not been acknowledged
8.4
8.4.1
View and acknowledge status alarms
The transmitter posts status alarms whenever a process variable exceeds its defined limits or the transmitter detects a fault condition. You can view active alarms, and you can acknowledge alarms.
View and acknowledge alarms using the display
You can view a list containing all alarms that are active, or inactive but unacknowledged.
From this list, you can acknowledge individual alarms.
Note
Only Fault and Informational alarms are listed. The transmitter automatically filters out alarms with
Status Alarm Severity
set to Ignore.
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Micro Motion ® Model 1700 Transmitters with Analog Outputs
Transmitter operation
Prerequisites
Operator access to the alarm menu must be enabled (default setting). If operator access to the alarm menu is disabled, you must use another method to view or acknowledge status alarms.
Procedure
See
Figure 8-2
.
Configuration and Use Manual
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Transmitter operation
Figure 8-2: Using the display to view and acknowledge the status alarms
Scroll and Select simultaneously for 4 seconds
SEE ALARM
Is ACK ALL enabled?
No
Select
Yes
ACK ALL
Yes No
Scroll
Scroll
EXIT
Select Scroll
Alarm code
Yes
Active/ unacknowledged alarms?
No
NO ALARM
Select
Select
Yes
ACK
No
Scroll
Scroll
EXIT
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Micro Motion ® Model 1700 Transmitters with Analog Outputs
8.4.2
Transmitter operation
Postrequisites
• To clear the following alarms, you must correct the problem, acknowledge the alarm, then power-cycle the transmitter: A001, A002, A010, A011, A012, A013,
A018, A019, A022, A023, A024, A025, A028, A029, A031.
• For all other alarms:
If the alarm is inactive when it is acknowledged, it will be removed from the list.
If the alarm is active when it is acknowledged, it will be removed from the list when the alarm condition clears.
View and acknowledge alarms using ProLink II
You can view a list containing all alarms that are active, or inactive but unacknowledged.
From this list, you can acknowledge individual alarms.
1.
Choose ProLink > Alarm Log.
2.
Choose the High Priority or Low Priority panel.
Note
The grouping of alarms into these two categories is hard-coded and is not affected by Status
Alarm Severity .
All active or unacknowledged alarms are listed:
• Red indicator: Alarm is currently active.
• Green indicator: Alarm is inactive but unacknowledged.
Note
Only Fault and Informational alarms are listed. The transmitter automatically filters out alarms with Status Alarm Severity set to Ignore.
3.
To acknowledge an alarm, check the Ack checkbox.
Postrequisites
• To clear the following alarms, you must correct the problem, acknowledge the alarm, then power-cycle the transmitter: A001, A002, A010, A011, A012, A013,
A018, A019, A022, A023, A024, A025, A028, A029, A031.
• For all other alarms:
If the alarm is inactive when it is acknowledged, it will be removed from the list.
If the alarm is active when it is acknowledged, it will be removed from the list when the alarm condition clears.
Configuration and Use Manual
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Transmitter operation
8.4.3
8.4.4
View and acknowledge alerts using ProLink III
You can view a list containing all alerts that are active, or inactive and have been unacknowleged. From this list, you can acknowlege individual alerts or choose to acknowledge all alerts at once.
1.
View alerts on the ProLink III main screen under Alerts.
All active or unacknowledged alarms are listed, and displayed according to the following categories:
Category
Failed: Fix Now
Description
A meter failure has occurred and must be addressed immediately.
Maintenance: Fix Soon A condition has occurred that can be fixed at a later time.
Advisory: Informational
A condition has occurred, but requires no maintenance from you.
Notes
• All fault alerts are displayed in the Failed: Fix Now category.
• All information alerts are displayed in either the Maintenance: Fix Soon category or the
Advisory: Informational
category. The category assignment is hard-coded.
• The transmitter automatically filters out alerts with Alert Severity set to Ignore.
2.
To acknowledge a single alert, check the Ack checkbox for that alert. To acknowledge all alerts at once, click Ack All.
Postrequisites
•
•
To clear the following alarms, you must correct the problem, acknowledge the alarm, then power-cycle the transmitter: A001, A002, A010, A011, A012, A013,
A018, A019, A022, A023, A024, A025, A028, A029, A031.
For all other alarms:
If the alarm is inactive when it is acknowledged, it will be removed from the list.
If the alarm is active when it is acknowledged, it will be removed from the list when the alarm condition clears.
View alarms using the Field Communicator
You can view a list containing all alarms that are active, or inactive but unacknowledged.
• To view active or unacknowledged alarms, press Service Tools > Alerts.
All active alarms or unacknowledged alarms are listed.
Note
Only Fault and Informational alarms are listed. The transmitter automatically filters out alarms with Status Alarm Severity set to Ignore.
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Micro Motion ® Model 1700 Transmitters with Analog Outputs
Transmitter operation
• To refresh the list of active or unacknowledged alarms, press Service Tools > Alerts >
Refresh Alerts
.
8.4.5
Alarm data in transmitter memory
The transmitter maintains three sets of data for every alarm that is posted.
For each alarm occurrence, the following three sets of data are maintained in transmitter memory:
• Alert List
• Alert Statistics
• Recent Alerts
Table 8-2: Alarm data in transmitter memory
Alarm data structure Transmitter action if condition occurs
Alert List
Alert Statistics
Recent Alerts
Contents
As determined by the alarm status bits, a list of:
• All currently active alarms
• All previously active alarms that have not been acknowledged
One record for each alarm (by alarm number) that has occurred since the last master reset.
Each record contains:
• A count of the number of occurrences
• Timestamps for the most recent posting and clearing
50 most recent alarm postings or alarm clearings
Clearing
Cleared and regenerated with every transmitter power cycle
Not cleared; maintained across transmitter power cycles
Not cleared; maintained across transmitter power cycles
8.5
Read totalizer and inventory values
Display
ProLink II
To read a totalizer or inventory value from the display, it must be configured as a display variable.
ProLink
> Totalizer Control
ProLink III View the desired variable on the main screen under Process Variables.
Field Communicator Service Tools > Variables > Totalizer Control
Configuration and Use Manual
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Transmitter operation
8.6
8.6.1
128
Overview
Totalizers keep track of the total amount of mass or volume measured by the transmitter since the last totalizer reset. Inventories keep track of the total amount of mass or volume measured by the transmitter since the last inventory reset.
Tip
You can use the inventories to keep a running total of mass or volume across multiple totalizer resets.
Start and stop totalizers and inventories
Display
ProLink II
See
Section 8.6.1
.
ProLink > Totalizer Control > Start
ProLink > Totalizer Control > Stop
ProLink III
Device Tools
> Totalizer Control > Totalizer and Inventories > Start All Totals
Device Tools > Totalizer Control > Totalizer and Inventories > Stop All Totals
Field Communicator Service Tools > Variables > Totalizer Control > All Totalizers > Start Totalizers
Service Tools
> Variables > Totalizer Control > All Totalizers > Stop Totalizers
Overview
When you start a totalizer, it tracks process measurement. In a typical application, its value increases with flow. When you stop a totalizer, it stops tracking process measurement and its value does not change with flow. Inventories are started and stopped automatically, when totalizers are started and stopped.
Important
Totalizers and inventories are started or stopped as a group. When you start any totalizer, all other totalizers and all inventories are started simultaneously.When you stop any totalizer, all other totalizers and all inventories are stopped simultaneously. You cannot start or stop inventories directly.
Start and stop totalizers and inventories using the display
Prerequisites
The Totalizer Start/Stop display function must be enabled.
At least one totalizer must be configured as a display variable.
Procedure
• To start all totalizers and inventories using the display:
Micro Motion ® Model 1700 Transmitters with Analog Outputs
Transmitter operation
•
1. Scroll until the word TOTAL appears in the lower left corner of the display.
Important
Because all totalizers are started or stopped together, it does not matter which total you use.
2. Select.
3. Scroll until START appears beneath the current totalizer value.
4. Select.
5. Select again to confirm.
6. Scroll to EXIT.
To stop all totalizers and inventories using the display:
1. Scroll until the word TOTAL appears in the lower left corner of the display.
Important
Because all totalizers are started or stopped together, it does not matter which total you use.
2. Select.
3. Scroll until STOP appears beneath the current totalizer value.
4. Select.
5. Select again to confirm.
6. Scroll to EXIT.
Configuration and Use Manual
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Transmitter operation
8.7
8.7.1
130
Reset totalizers
Display
ProLink II
See
Section 8.7.1
.
ProLink
> Totalizer Control > Reset Mass Total
ProLink
> Totalizer Control > Reset Volume Total
ProLink
> Totalizer Control > Reset Gas Volume Total
ProLink > Totalizer Control > Reset
ProLink III
Device Tools
> Totalizer Control > Totalizer and Inventories > Reset Mass Total
Device Tools
> Totalizer Control > Totalizer and Inventories > Reset Volume Total
Device Tools > Totalizer Control > Totalizer and Inventories > Reset Gas Total
Device Tools > Totalizer Control > Totalizer and Inventories > Reset All Totals
Field Communicator Service Tools > Variables > Totalizer Control > Mass > Mass Total
Service Tools > Variables > Totalizer Control > Gas Standard Volume > Volume Total
Service Tools > Variables > Totalizer Control > Gas Standard Volume > GSV Total
Service Tools > Variables > Totalizer Control > All Totalizers > Reset All Totals
Overview
When you reset a totalizer, the transmitter sets its value to 0. It does not matter whether the totalizer is started or stopped. If the totalizer is started, it continues to track process measurement.
Tip
When you reset a single totalizer, the values of other totalizers are not reset. Inventory values are not reset.
Reset totalizers using the display
Prerequisites
The Totalizer Reset display function must be enabled.
The totalizer that you want to reset must be configured as a display variable. For example:
• If you want to reset the mass totalizer, Mass Total must be configured as a display variable.
• If you want to reset the volume totalizer, Volume Total must be configured as a display variable.
Procedure
• To reset the mass totalizer:
1. Scroll until the mass totalizer value appears.
2. Select.
Micro Motion ® Model 1700 Transmitters with Analog Outputs
8.8
Transmitter operation
3. Scroll until RESET appears beneath the current totalizer value.
4. Select.
5. Select again to confirm.
6. Scroll to EXIT.
7. Select.
• To reset the volume totalizer:
1. Scroll until the volume totalizer value appears.
2. Select.
3. Scroll until RESET appears beneath the current totalizer value.
4. Select.
5. Select again to confirm.
6. Scroll to EXIT.
7. Select.
• To reset the gas standard volume totalizer:
1. Scroll until the gas standard volume totalizer value appears.
2. Select.
3. Scroll until RESET appears beneath the current totalizer value.
4. Select.
5. Select again to confirm.
6. Scroll to EXIT.
7. Select.
Reset inventories
ProLink II
ProLink III
ProLink
> Totalizer Control > Reset Inventories
ProLink
> Totalizer Control > Reset Mass Inventory
ProLink
> Totalizer Control > Reset Volume Inventory
ProLink > Totalizer Control > Reset Gas Volume Inventory
Device Tools
> Totalizer Control > Totalizer and Inventories > Reset Mass Inventory
Device Tools
> Totalizer Control > Totalizer and Inventories > Reset Volume Inventory
Device Tools > Totalizer Control > Totalizer and Inventories > Reset Gas Inventory
Device Tools > Totalizer Control > Totalizer and Inventories > Reset All Inventories
Configuration and Use Manual
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Transmitter operation
Overview
When you reset an inventory, the transmitter sets its value to 0. It does not matter whether the inventory is started or stopped. If the inventory is started, it continues to track process measurement.
Tip
When you reset a single inventory, the values of other inventories are not reset. Totalizer values are not reset.
Prerequisites
To use ProLink II or ProLink III to reset the inventories, the feature must be enabled.
• To enable inventory reset in ProLink II:
1. Click View > Preferences.
2. Check the Enable Inventory Totals Reset checkbox.
3. Click Apply.
• To enable inventory reset in ProLink III:
1. Choose Tools > Options.
2. Select Reset Inventories from ProLink III.
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Micro Motion ® Model 1700 Transmitters with Analog Outputs
