• Under conditions of forward flow, for flow rates between 0 and +100 g/sec, the mA Output varies between
12 mA and 20 mA in proportion to (the absolute value of) the flow rate.
• Under conditions of forward flow, if (the absolute value of) the flow rate equals or exceeds 100 g/sec, the
mA Output is proportional to the flow rate up to 20.5 mA, and will be level at 20.5 mA at higher flow rates.
• Under conditions of reverse flow, for flow rates between 0 and −100 g/sec, the mA Output varies between
4 mA and 12 mA in inverse proportion to the absolute value of the flow rate.
• Under conditions of reverse flow, if the absolute value of the flow rate equals or exceeds 100 g/sec, the mA
Output is inversely proportional to the flow rate down to 3.8 mA, and will be level at 3.8 mA at higher
absolute values.
8.2.4 Configure mA Output Cutoff
Display Menu > Configuration > Inputs/Outputs > Channel x > I/O Settings > MAO Cutoff
ProLink III Device Tools > Configuration > I/O > Outputs > mA Output x > Flow Rate Cutoff
Field Communicator Configure > Manual Setup > Inputs/Outputs > Channel x > mA Output x > mA Output x Settings > mAO
Flow Rate Cutoff
mA Output Cutoff specifies the lowest flow rate that will be reported through the mA Output. All flow rates
below the specified value are reported as 0.
mA Output Cutoff is applicable only when mA Output Source is set to a flow rate variable. It is applied to all
flow rate variables: mass flow rate, liquid volume flow rate, gas standard volume flow rate, and so on.
Procedure
Set mA Output Cutoff as desired.
Set mA Output Cutoff in the measurement units used for the process variable. If you change the
measurement unit, mA Output Cutoff is adjusted automatically.
• Default: 0
• Range: 0 or any positive value
Tip
For most applications the default value of mA Output Cutoff should be used. Contact customer service
before changing mA Output Cutoff.
Interaction between mA Output Cutoff and process variable cutoffs
When mA Output Process Variable is set to a flow variable (for example, mass flow rate or volume flow rate),
mA Output Cutoff interacts with Mass Flow Cutoff or Volume Flow Cutoff. The transmitter puts the cutoff
into effect at the highest flow rate at which a cutoff is applicable.
8.2.5 Configure mA Output Damping
Display
Menu > Configuration > Inputs/Outputs > Channel x > I/O Settings > MAO Damping
ProLink III Device Tools > Configuration > I/O > Outputs > mA Output x > Added Damping
Field Communicator Configure > Manual Setup > Inputs/Outputs > Channel x > mA Output x > mA Output x Settings > Added
Damping
Integrate the meter with the control system Configuration and Use Manual
April 2019 MMI-20048166
100 Micro Motion 4200 Transmitters
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