Configuration and Use Manual 47
Required Transmitter Configuration
Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup
Multiple damping parameters
Damping can also be configured for the flow (mass and volume), density, and temperature process
variables (see Section 8.5). If one of these process variables has been assigned to the mA output, a
non-zero value is configured for its damping, and added damping is also configured for the mA
output, the effect of damping the process variable is calculated first, and the added damping
calculation is applied to the result of that calculation. See the following example.
6.5.5 Configuring the fault indicator and fault value
If the transmitter encounters an internal fault condition, it will indicate the fault by sending a
preprogrammed output level to the receiving device. You can specify the output level by configuring
the fault indicator. Options are shown in Table 6-10.
Note: By default, the transmitter immediately reports a fault when a fault is encountered. You can
delay reporting faults by changing the fault timeout. See Section 8.9.
Example
Configuration:
• Flow damping: 1
• mA output: Mass flow
• Frequency output: Mass flow
• mA output added damping: 2
As a result:
• A change in mass flow will be reflected in the mA output over a
time period that is greater than 3 seconds. The exact time period
is calculated by the transmitter according to internal algorithms
which are not configurable.
• The frequency output level changes over a 1-second time period
(the flow damping value). It is not affected by the added damping
value.
Table 6-10 mA output fault indicators and values
Fault indicator Fault output value
Upscale 21–24 mA (user-configurable; default: 22 mA)
Downscale 1.0–3.6 mA (user-configurable; default: 2.0 mA)
Internal zero The value associated with 0 (zero) flow, as determined by URV and LRV values
None Tracks data for the assigned process variable; no fault action
Setting the fault indicator to NONE may result in process error due to
undetected fault conditions.
To avoid undetected fault conditions when the fault indicator is set to NONE, use
some other mechanism such as digital communication to monitor device status.
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