Micro Motion CDM100P - Page 47

Effect of Flow Direction on the mA output: Lower Range Value = 0Figure 4-1:
Flow Direction = Forward
mA output
-x 0 x
Reverse flow Forward flow
20
12
4
Flow Direction = Reverse, Negate Forward
mA output
-x 0 x
Reverse flow Forward flow
20
12
4
Flow Direction = Absolute Value, Bidirectional,
Negate Bidirectional
mA output
-x 0 x
Reverse flow Forward flow
20
12
4
• Lower Range Value = 0
• Upper Range Value = x
Effect of Flow Direction on the mA output: Lower Range Value < 0Figure 4-2:
Flow Direction = Forward
mA output
-x 0 x
Reverse flow Forward flow
20
12
4
Flow Direction = Reverse, Negate Forward
mA output
-x 0 x
Reverse flow Forward flow
20
12
4
Flow Direction = Absolute Value, Bidirectional,
Negate Bidirectional
mA output
-x 0 x
Reverse flow Forward flow
20
12
4
• Lower Range Value = −x
• Upper Range Value = x
Example: Flow Direction = Forward and Lower Range Value = 0
Configuration:
• Flow Direction = Forward
• Lower Range Value = 0 m/sec
• Upper Range Value = 10 m/sec
Result:
• Under conditions of reverse flow or zero flow, the mA output is 4 mA.
Configure process measurement
Configuration and Use Manual 41