PS12FX-P-N-N — PowerScout FLEX 12 Multi-Circuit Power Submeter
The Dent Instruments PS12FX-P-N-N is part of the PowerScout™ FLEX 12 family, DENT's next-generation 12-channel multi-circuit submeter that replaces the PowerScout™ HD. The PS12FX-P-N-N measures voltage, current, power, energy, and many other electrical parameters on any combination of single- and three-phase loads — up to 4 three-phase or 12 single-phase circuits across two voltage references — making it well suited to tenant submetering, bi-directional metering, and real-time monitoring across commercial and industrial facilities.
The PS12FX-P-N-N delivers revenue-grade performance with continuous 7.2 kHz sampling (no blind cycles), a 1-second parameter update rate, and ANSI C12.1-2024 Class 0.2 accuracy when paired with an appropriate CT. It supports both BACnet and Modbus, includes four digital pulse inputs, and provides RS-485 serial and Ethernet as standard. Setup is handled through FLEXPoint™ PC software or the browser-based FLEXPoint™ GO web server, and DENT's patented PhaseChek™ circuitry (U.S. Patent 7,612,552) confirms correct CT orientation during commissioning.
The PS12FX-P-N-N is the no-display configuration: it is commissioned and read entirely through FLEXPoint™, FLEXPoint™ GO, or the network, making it well suited to panel and enclosure builds where a local screen is not required.
Built as a UL-Recognized circuit board on a mounting plate, the PS12FX-P-N-N is delivered in the Mounting Plate form factor. Like all PowerScout meters, the PS12FX-P-N-N operates as an endpoint that reports to a building management system, RTU, data acquisition device, or DENTCloud™ host rather than as a standalone recorder.
Best for
- High-density tenant and accountability submetering — up to 12 circuits from one device
- Bi-directional metering for solar, wind, and other renewable or storage interconnections
- Monitoring building mains, HVAC, pumps, motors, and equipment loads
- Multi-circuit measurement using Virtual Meters to group the PS12FX-P-N-N's twelve channels by load
- Hospitals, data centers, and government projects requiring Made in USA / BAA / TAA equipment
Key Features
FLEXPoint™ + FLEXPoint™ GO
Configure the PS12FX-P-N-N from a rebuilt PC application or directly from any web browser with FLEXPoint GO — no software install required for on-site changes, validation, and field troubleshooting.
Flexible Virtual Meters
Assign any of the twelve CT channels to any load in any combination — single-phase, split-phase, or three-phase groupings — and meter multiple loads from a single PS12FX-P-N-N with consistent load labels across software, the LCD, register exports, and cloud systems.
Dual-Protocol + 4 Pulse Inputs
The PS12FX-P-N-N speaks both BACnet and Modbus over RS-485 and Ethernet, adds four digital pulse inputs for gas, water, or other meters, and uses an IEEE-754 floating-point register map that flattens all Virtual Meters to a single address.
PhaseChek™ + Revenue-Grade Accuracy
Built-in PhaseChek verification confirms correct CT orientation and phase matching to reduce installation errors, while the PS12FX-P-N-N meets ANSI C12.1-2024 Class 0.2 revenue-grade accuracy (dependent on CT selection).
Universal CT Compatibility
Mix and match a full range of 333.3 mV CTs — Solid Core, Split Core, or RōCoil™ (Rogowski) — including revenue-grade options, measuring up to 4000 A depending on the CT used with the PS12FX-P-N-N.
Made in USA, BAA & TAA Compliant
Per the DENT data sheet, the PowerScout FLEX 12 is Made in USA and marked Buy American Act (BAA) and TAA compliant, supporting procurement requirements common to government, healthcare, and institutional projects.
Technical Specifications
| Specification | PS12FX-P-N-N |
|---|---|
| Model / Part Number | PS12FX-P-N-N |
| Series | PowerScout FLEX 12 (12-channel, multi-circuit) |
| Channel Capacity | Up to 4 three-phase or 12 single-phase circuits; 2 voltage references |
| Service Type | Single Phase, Three Phase-Four Wire (WYE), Three Phase-Three Wire (Delta) |
| Power | From L1 Phase to L2 Phase. 90-600 VAC RMS, CAT III, 50/60 Hz, 500 mA AC Max |
| Auxiliary Power Out | Unregulated 12 VDC, 200 mA, self-resetting fuse (requires 100 VAC minimum input) |
| AC Protection | 0.5 A fuse, 200 kA interrupt capacity |
| Voltage Channels | 90-346 VAC Line-to-Neutral, 600 V Line-to-Line, CAT III |
| Current Channels | 12 channels, 0.525 VAC max, 333.3 mV CTs, 0-4000 A depending on CT |
| Maximum Current Input | 150% of CT rating (mV CTs) to maintain accuracy; up to 4000 A with RōCoil CTs |
| Pulse Inputs | 4 inputs, 3.3 V sourcing (current limited) to a dry-contact pulse output; max 10 Hz (50 ms min transition) |
| Measurement Type | True RMS using high-speed DSP with continuous sampling |
| Accuracy | 0.2% — ANSI C12.1-2024 Class 0.2; NIST traceable calibration |
| Resolution | 32-bit IEEE-754 single-precision floating point |
| Line Frequency | 50/60 Hz (45-65 Hz measurable range); measured L1-N |
| Waveform Sampling | 7.2 kHz continuous (no blind cycles) |
| Parameter Update Rate | 1.0 second |
| Measurements | Volts, Amps, kW, kVAR, kVA, aPF, dPF, kW demand, kVA demand, Import/Export/Net kWh, kVAh and kVARh, THD, Theta, Frequency — per phase and per Virtual Meter |
| Display | No display (configured via FLEXPoint / network) |
| Communications Hardware | RS-485, Ethernet, and USB (USB for configuration only) |
| Supported Protocols | Modbus RTU, BACnet MS/TP, Modbus TCP or BACnet IP |
| Communication Rate | Modbus: 9600-115200 baud; BACnet: 9600-76800 baud |
| Max Communication Length | 1200 m at 100K bits/second or less |
| Alarm Output | Undervoltage (open collector, 30 VDC max) |
| Web Page Security | 2 levels of PIN protection (Read/Write or Read-Only) |
| Mounting | Open circuit board on a mounting plate for installation in the UL-approved enclosure of your choice |
| High-Voltage Cover | Not included on mounting-plate version |
| Enclosure | ABS plastic, 94-V0 flammability rating; 1 in EMT conduit connections |
| Dimensions | 17.8 x 26.3 x 8.0 cm (7.0 x 10.4 x 3.1 in) |
| Wire Connections | 12-28 AWG, 600 VAC; voltage connection must be #14 AWG or larger and 600 VAC rated |
| Operating Temperature | -20 to 60 °C (-4 to 140 °F) |
| Humidity | 5% to 95% non-condensing |
| Certifications | UL Recognized (E186827, UL 61010-1 3rd Ed.; CSA C22.2 No. 61010-1); CE (LVD EN61010-1, EMC EN61326-1); RoHS 3 (IEC 63000:2018); ANSI C12.1-2024 Class 0.2; Made in USA; BAA and TAA compliant |
| Configuration Software | FLEXPoint™ (Windows 10 / 11) and FLEXPoint™ GO web server |
Documentation
- PDF PowerScout FLEX 12 Data Sheet
- PDF Installation, Wiring & Operator's Guide
- PDF FLEXPoint Software & Integration Guide
- PDF Commissioning Checklist
- PDF Quick Start Guide
Frequently Asked Questions
How many circuits can the PS12FX-P-N-N meter?
The PS12FX-P-N-N has 12 current channels and can meter up to 4 three-phase or 12 single-phase circuits across two voltage references, grouped however your site is organized using Virtual Meters.
What protocols does the PS12FX-P-N-N support?
The PS12FX-P-N-N supports Modbus RTU, BACnet MS/TP, Modbus TCP or BACnet IP, plus four digital pulse inputs, so it integrates with most BACnet or Modbus building management and energy systems.
Which current transformers work with the PS12FX-P-N-N?
The PS12FX-P-N-N accepts 333.3 mV DENT CTs — Solid Core, Split Core, and RōCoil™ (Rogowski) — including revenue-grade options, and measures up to 4000 A depending on the CT selected.
What is the form factor of the PS12FX-P-N-N?
The PS12FX-P-N-N is supplied as a UL-Recognized circuit board on a mounting plate in the Mounting Plate configuration, measuring 17.8 x 26.3 x 8.0 cm (7.0 x 10.4 x 3.1 in).
Is the PS12FX-P-N-N revenue grade?
The PS12FX-P-N-N meets ANSI C12.1-2024 Class 0.2 revenue-grade accuracy, dependent on the CT selected, and ships with a NIST-traceable calibration.
How does the PS12FX-P-N-N get data to a host or BMS?
The PS12FX-P-N-N operates as an endpoint, reporting over Ethernet (BACnet/IP or Modbus TCP) or RS-485 (Modbus RTU or BACnet MS/TP) to a building management system, RTU, data acquisition device, or DENTCloud™ host.
Is the PS12FX-P-N-N Made in USA?
Yes. Per the DENT data sheet the PowerScout FLEX 12, including the PS12FX-P-N-N, is Made in USA and is marked BAA and TAA compliant.
- Brand:
- DENT Instruments
- Series:
- PowerScout FLEX 12
- Meter Type:
- Multi-Circuit
- Current Channels:
- 12
- Mounting:
- Mounting Plate
- Display:
- No
- Connectivity:
- Ethernet and RS-485
- Supported Protocols:
- Modbus RTU, BACnet MS/TP, Modbus TCP or BACnet IP
- Accuracy Class:
- ANSI C12.1-2024 Class 0.2
- Country of Origin:
- Made in USA
