Siemens SITRANS FUS1020, Manual, Page: 14 / 251

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1020NFM-1D
Section 1
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Flexible setup options using either the touch panel keypad sensors or a PC/laptop connected to
the RS-232 port.
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Integral 2x16 Character LCD panel display shows real-time data and Installation Menu for key-
pad input or RS-232 remote programming.
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Flexible mounting: Integral and/or Remote - either on pipe or located up to 300 feet (100m) from
the transducers. For distances greater then 300 feet (up to 1000 ft), please contact Siemens
Customer Service.
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Menu Lockout Switch prevents unauthorized access to site setup data.
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Wide-Band pipe matching provides high performance and stability for Steel pipes.
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ZeroMatic Path sets Zero flow compensation without stopping flow; eliminates zero drift.
Integral Datalogger
FUS1020 provides an integral Datalogger that records user-assigned data at a programmable log
interval for later retrieval. Data reports can be transmitted via the RS-232 port to either a serial printer
for hard copy, or to a PC/laptop computer where the report format is comma-delimited ASCII text to
facilitate its import to spreadsheet or database software.
Analog Outputs
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Loop powered isolated current varies from 4-20 mA in proportion to any user-selected data
function.
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Digital PGEN output pulse function allows user assigned PGEN digital signal pulses per unit of
volume.
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Buffered open collector relay trigger output provides logic levels for response to user-assigned
alarm functions.
Accuracy +/- 2.0% of rate, or better
Batch Repeatability +/- 0.1%
Flow Range +/- 40 ft/sec, (+/- 12 m/s) including zero flow, bi-directional
Flow Sensitivity 0.001 ft/sec, (0.0003 m/s) flow rate independent
Zero Drift 0.01% ft/sec or better with ZeroMatic Path active
Data Refresh Rate 3 Hz
Time Averaged Response Rate 1 to 60 seconds
Performance Specifications (Example for typical 6-inch pipe)