Siemens SITRANS FUS1010 NEMA-4X/ IP 65 NFM-3J Dual Channel, Dual Path, Channel 1+2 and Channel

Section 1 1010NFM-3J

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.

Channel 1	Pipe 'A' Flow Rate
Flow

PIPE `A'

PIPE `B'

Channel 2	Pipe 'B' Flow Rate
Flow

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

Flow

Pipe

Channel 2

Flow

Ch1 + Ch2 Output

2(average of Ch 1 & Ch 2)

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

PIPE `A'

PIPE `B'

Channel 2

P
I
P
E
`
A
	'
	F
		L
		O
		W
			R
			A	Output
			E
			T
			Ch1 [+/-] Ch2	sum or difference
				of Ch1 & Ch2
			E
			T
			A
			R
			W
		O
		L
	F
	'
B
`
E
IP
P

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.

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