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• Under conditions of reverse flow or zero flow, the mA output is 4 mA.
• Under conditions of forward flow, up to a flow rate of 100 g/sec, the mA output
varies between 4 mA and 20 mA in proportion to the flow rate.
• Under conditions of forward flow, if the flow rate equals or exceeds 100 g/sec, the
mA output will be proportional to the flow rate up to 20.5 mA, and will be level at
20.5 mA at higher flow rates.
Example: Flow Direction = Forward and Lower Range Value < 0
Configuration:
• Flow Direction = Forward
• Lower Range Value = −100 g/sec
• Upper Range Value = +100 g/sec
Result:
• Under conditions of zero flow, the mA output is 12 mA.
• 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.
Example: Flow Direction = Reverse
Configuration:
• Flow Direction = Reverse
• Lower Range Value = 0 g/sec
• Upper Range Value = 100 g/sec
Result:
• Under conditions of forward flow or zero flow, the mA output is 4 mA.
• Under conditions of reverse flow, for flow rates between 0 and +100 g/sec, the mA
output level varies between 4 mA and 20 mA in 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 will be proportional to the absolute value of the
flow rate up to 20.5 mA, and will be level at 20.5 mA at higher absolute values.
Configure process measurement
42 Micro Motion
®
Model 1500 Transmitters with Analog Outputs