The Smith Meter GP-UF/A is a general-purpose, field-programmable frequency-to-analog converter. It accepts low-level sinusoidal or high-level pulse signals from turbine pickups, preamps and most Smith Meter PD transmitters and delivers a DC current or voltage output proportional to flow, with fast update and no output ripple even at low input frequencies. A built-in display shows the process variable, and a 12 VDC output can power the transmitter.
Key specifications
Accuracy: Resolution 0.1% of full scale; linearity and ripple within 0.2% / 0.1% of full scale
Inputs: Low level: sine wave from 50 mV RMS, 1-50 kHz, 50 kΩ; high level: square wave >7/<4 V, 0-100 kHz, 100 kΩ
Compatible transmitters: Turbine pickup or preamp, HR-LNC, LR-LNC, PEXP, PST, D and E transmitters (PPS needs external power)
Outputs: Isolated 0-20 / 4-20 mA (750 Ω max) or 0-10 / 2-10 VDC; 10 V pulse repeat of input; 12 VDC transmitter power (60 mA on AC, 20 mA on DC)
Programming: Four-key front panel; K-factor 0.001-99,999 pulses/unit; pass-code lock; low-flow cutoff, input divider and averaging
Power: 85-265 VAC (standard) or 18-40 VDC, 4 W max
Enclosure / environment: NEMA 1 general purpose (35 mm rail mount) standard; NEMA 4 weatherproof or NEMA 7 explosion-proof options; 32-122 °F
How to read the model code
Example: GP-UF/A-DC-G. Read the code left to right:
Basic model: GP-UF/A
Input power: AC = 85-265 VAC (standard); DC = 18-40 VDC
Enclosure: G = general purpose (standard); N4 = weatherproof; X = explosion-proof
Available models: GP-UF/A-AC-G, -AC-N4, -AC-X, -DC-G, -DC-X
When ordering, specify model, input power, enclosure type and output current source.
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter bulletin SS09024; confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.