User's Manual

1-9
1010NFM-3JSection 1
Dual Path
Dual Path uses two measurement channels to achieve a single output via a “virtual” third channel. The
resultant data is the average of the two channels. Only clamp-on or in-line transit-time operation al-
lowed. Benefits include highest available precision and enhanced immunity to distorted flow profile
conditions.
Channel 1+2 and Channel 1-2
Arithmetic operation produces data output via a virtual Channel 3, proportional to sum or difference of
the liquid and energy flow of two independent pipes. This requires setting the two channels to operate
independently. Only clamp-on or in-line transit-time operation is supported.
Channel 1-2 produces a data output via a virtual Channel 3, proportional to the difference of the liquid
and energy flow of two independent pipes. You have to set-up the two channels independently. Only
clamp-on or in-line transit-time operation is supported.
Channel 1
Flow
Channel 2
Flow
PIPE `A'
PIPE `B'
Pipe 'A' Flow Rate
Pipe 'B' Flow Rate
Channel 1
Flow
Channel 2
Flow
Ch1 + Ch2
2
Output
(average of
Ch 1 & Ch 2)
Pipe
Dual Channel
Dual Channel provides two independent measurement channels that operate simultaneously. De-
pending on the specific model, Dual Channel supports: Clamp-on Transit-time, In-line Transit-time,
Reflexor.
Output
sum or difference
of Ch1 & Ch2
Channel 1
Channel 2
PIPE `A'
PIPE `B'
P
I
P
E
`
A
'
F
L
O
W
R
A
T
E
P
I
P
E
`
B
'
F
L
O
W
R
A
T
E
Ch1 [+/-] Ch2