Micro Motion Fisher Rosemount RFT9739, Instruction Manual

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RFT9739 Rack-Mount Transmitter Instruction Manual
RFT9739 Specifications
continued
API gravity
API gravity references to 60°F (15°C). Uses correlation based on API
equation 2540 for Generalized Petroleum Products.
Accuracy of corrected density calculation relative to API-2540 from 0 to
300°F:
Process fluid g/cc kg/m
3
°API
Diesel, heater, and fuel oils ±0.0005 ±0.5 ±0.2
Jet fuels, kerosenes, and solvents ±0.002 ±2.0 ±0.5
Crude oils and JP4 ±0.004 ±4.0 ±1.0
Lube oils ±0.01 ±10 ±2.0
Gasoline and naphthenes ±0.02 ±20 ±5.0
Minimum 4-20 mA span: 10°API
Standard volume
Outputs standard volume at 60°F or 15°C for Generalized Petroleum
Products when °API is selected as density unit of measure. Accuracy of
standard volume measurements depends on accuracies of mass flow
rate, density, temperature and temperature-corrected °API calculation,
and can be estimated using the root mean square method. Standard
volume accuracy of ±0.5% of rate is typically attainable for Generalized
Petroleum Products such as fuel oils, jet fuels, and kerosenes.
Pressure compensation
The analog input can accept a signal from a pressure transmitter for
pressure compensation of flow and density. Range, 0-25 mA. Can be
used to power independent pressure or differential pressure transmitter.
Voltage sourcing capability, 15 V. Input impedance, 100 ohms.
Low-flow cutoff
Flow values below the low-flow cutoff cause digital and frequency
outputs to default to zero flow levels. Each mA output may be configured
for an additional low-flow cutoff.
Slug-flow limits
Transmitter senses density outside limits. Flow output remains at last
measured value, for a programmed time of 0 to 60 seconds, before
defaulting to zero flow.
Damping
Wide range of programmed filter time constants for damping on flow,
density, and temperature. Additional damping may be applied to mA
outputs.
Fault indication
Faults can be indicated by user-selected downscale (0-2 mA, 0 Hz) or
upscale (22-24 mA, 15-19 kHz) output levels. The control output can
also be configured to indicate a fault condition at 0 V.