Quick start with the Field Communicator
Note
Do not zero the flowmeter if a high-severity alarm is active. Correct the problem, then zero the
flowmeter. You may zero the flowmeter if a low-severity alarm is active.
Procedure
To initiate the flowmeter zero, press
Service Tools→Maintenance→Zero Calibration→Perform Auto Zero
.
The display will report
Calibration in progress
. When the calibration is complete, the display reports
Auto zero
complete
if the zero was successful, or
Auto zero failed
if it was not.
4.8
Test or tune the system using sensor simulation
Sensor simulation allows you to set specific values or value ranges for mass flow, density, and
temperature. The transmitter will report the specified values and take all appropriate actions, e.g., apply
a cutoff, activate an event, or post an alarm. You can use this feature to test the system’s response to a
variety of process conditions, including boundary conditions, problem conditions, or alarm conditions, or
to tune the loop.
When you enable sensor simulation, the simulated values are stored in the same memory locations
used for process data from the sensor. Therefore, the simulated values will be used throughout
transmitter functioning. For example, sensor simulation will affect:
• All mass flow, temperature, or density values shown on the display or reported via outputs
or digital communications
• The mass total and mass inventory values
• All volume calculations and data, including reported values, volume totals, and volume inventories
• All mass, temperature, density, or volume values logged to Data Logger
Sensor simulation does not affect any diagnostic values.
Unlike actual mass flow and density values, the simulated values are not temperature-compensated
(adjusted for the effect of temperature on the sensor’s flow tubes).
Important
Do not enable sensor simulation unless your process can tolerate the effects of the simulated process
values.
Procedure
1.
Navigate to the sensor simulation menu:
Service Tools→Simulate→Simulate Sensor
.
2.
Enable sensor simulation.
3.
For mass flow, set
Wave Form
as desired and enter the required values.
56
Micro Motion 9739 MVD Transmitters
