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Yokogawa NFCP100-SS3
Product Introduction:
The NFCP100-SS3 is a compact flow computer designed for custody transfer, energy measurement, and process flow totalization. It accepts inputs from flowmeters (pulse, 4-20 mA, frequency), temperature sensors (RTD, TC), and pressure transmitters to compute compensated mass/volumetric flow, totalized flow, and energy content. The “SS3” suffix denotes the specific input/output and communication configuration.
Detailed content
Working Principle:
The NFCP100 collects raw flow signals from primary flow elements (orifice plate, venturi, Coriolis, turbine, etc.) along with temperature and pressure inputs. It applies industry-standard compensation algorithms (AGA, ISO, ASME) to calculate compensated flow rate. Energy calculation is performed by multiplying compensated mass flow by enthalpy values derived from steam tables or gas equations of state. All computed values are available via analog outputs, pulse outputs, and digital communication.
Technical Specifications:
| Parameter | Value |
|---|---|
| Input Channels | Flow: Pulse, 4-20 mA, Frequency; Temp: RTD (Pt100, JPt100, Cu50), TC (all types); Pressure: 4-20 mA |
| Flow Computation | Mass flow, volumetric flow, energy flow (steam, gas, liquid), totalized flow |
| Analog Outputs | 2 channels: 4-20 mA DC (isolated, programmable) |
| Pulse Outputs | 2 channels: Frequency/Pulse (for totalizer or remote display) |
| Communication | Modbus RTU (RS-485), Modbus TCP (Ethernet), HART 7 (on analog input channels) |
| Power Supply | 100-240 V AC or 24 V DC |
| Display | 6-digit LCD with backlight (process value, total, status) |
| Data Storage | Non-volatile memory — retains totals and parameters during power loss |
| Totalizer Resolution | Up to 10 digits (999,999,999.9) |
| Batch Function | Yes — batch totalization with preset quantity control |
| Protection Rating | IP65 (NEMA 4X) |
| Ambient Temperature | 0°C to +55°C |
| Ex Rating | Ex ia IIC T4 Ga (intrinsically safe version available) |
| Compliance | OIML R117, API MPMS Ch.5/21, AGA Report No.3/7/9, ISO 5167 |
Material Composition:
- Housing: ABS resin (UL94 V-0) with epoxy-coated front panel
- Terminal blocks: Glass-filled PBT, UL recognized, screw-clamp type
- PCB: Conformal coated for humidity resistance
Structure Features:
- Compact DIN rail or panel mount design
- Front panel 6-digit LCD with 4 navigation keys
- Dual analog outputs for independent flow and total output
- Ethernet port for integration with SCADA/DCS systems
- SD card slot (optional) for data backup and firmware update
Advantages:
- Computes compensated flow and energy from a single device
- Supports multiple flow standards (AGA, ISO, ASME) without external calculators
- Non-volatile memory ensures no data loss during power interruption
- Batch control function for loading/unloading operations
- HART communication on input channels enables remote flowmeter configuration
Applicable Industries:
Oil and gas custody transfer, steam energy metering, natural gas measurement, chemical batch processes, utility metering, water/wastewater flow totalization, food and beverage batching
Installation Requirements:
- Mount on 35 mm DIN rail or in a control panel (cutout per datasheet)
- Connect flowmeter pulse/mA output to FLOW input terminals
- Connect RTD/TC to TEMP input terminals
- Connect pressure transmitter to PRESS input terminals
- Wire analog outputs to DCS/SCADA or remote totalizer displays
- Connect RS-485 or Ethernet to host system
- Provide stable 24 V DC or 100-240 V AC power
