Emerson Rosemount 3410 Series Installation Manual page 62
Gas ultrasonic flow meters
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Also See for Rosemount 3410 Series:
- Reference manual (102 pages) ,
- Maintenance and troubleshooting manual (96 pages) ,
- Retrofit instructions (74 pages)
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Electrical installation
October 2023
•
Frequency output 1A is the A Phase of Frequency output 1 content (Uncorrected volume
flow rate, Corrected volume flow rate, Average flow velocity, Average speed of sound,
Energy flow rate, Mass flow rate)
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Frequency output 1B is the B Phase of Frequency output 1
•
Frequency output 2A is the A Phase of Frequency output 2 content (Uncorrected volume
flow rate, Corrected volume flow rate, Average flow velocity, Average speed of sound,
Energy flow rate, Mass flow rate)
•
Frequency output 2B is the B Phase of Frequency output 2 content
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Digital output 1A is based on Digital output1A content (Frequency Output 1Validity and
Flow Direction)
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Digital output 1B is based on Digital output1B content (Frequency Output 1Validity and
Flow Direction)
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Digital output 2A is based on Digital output 2A content (Frequency Output 1Validity and
Flow Direction)
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Digital output 2B is based on Digital output 2B content (Frequency Output 1Validity and
Flow Direction)
Mode options
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Open Collector (requires external excitation supply voltage and pull-up resistor)
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TTL (internally powered by the meter 0-5 Vdc signal)
Channel B Phase options
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Lag forward, Lead reverse (Phase B lags Phase A while reporting forward flow, leads
Phase A while reporting reverse flow)
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Lead forward, Lag reverse (Phase B leads Phase A while reporting forward flow, lags
Phase A while reporting reverse flow)
Phase A and Phase B output (based on flow direction)
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Reverse flow - output only reports flow in the reverse direction. For frequency outputs,
Phase B of the output is 90 degrees out of phase with Phase A.
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Forward flow - output only reports flow in the forward direction. For frequency outputs,
Phase B of the output is 90 degrees out of phase with Phase A.
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Absolute - output reports flow in both directions. For frequency outputs, Phase B of the
output is 90 degrees out of phase with Phase A.
•
Bidirectional - output reports flow on Phase A only in the forward direction and on
Phase B only in the reverse direction.
Maximum frequency for the frequency outputs
•
1000 Hz
•
5000 Hz
62
Installation manual
00825-0600-3104
Gas Ultrasonic Flow Meters
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