PRO PM335 and EM235
PRO PM335 and EM235
IEC 61850 Advanced Power Meter
SATEC’s newest, cost-effective, and advanced IEC 61850 Power Meter
Today's world of power metering and telemetry requires full connectivity, relying on advanced communication protocols and enveloping cyber-security. The PM335 and EM235 PRO series features a comprehensive communication platform, including Dual Port Ethernet, IEC 61850 communication protocol, DNP3 and IEC 60870-5101/104 the PRO meter is designed to answer the needs of the modern digital substation.
A variety of attachable digital I/O modules combined with the measured electrical parameters and the ability to program the meters with PLC logic setpoints enables versatile control functionalities. This way a meter does not only monitor the energy consumed in an industrial process but also measures its efficiency, alerting of irregularities and taking needed action such as shutting down power or a critically failing process via relay outputs. With AC and DC metering combined it is an extremely powerful tool for a wide variety of energy-consuming industrial processes.
PM335 and EM235 PRO series is primarily designed as an inexpensive add-on to expand the capabilities of the existing substation protection equipment, it is well suited for a wide range of industrial applications with high input currents whenever extensive power quality monitoring is required.
- Precision: Class 0.2S accuracy; 256 samples/cycle, 10 msec TRUE-RMS refresh time
- Memory: 16 GB on-board
- Communication ports: 2 X ETH (redundancy/daisy-chain); USB (type C), RS-485
- IEC 61850
- Power Quality: waveform capture and event recording
- Neutral Current Metering
- Flexible modularity: up to 4 expandable IO and communication modules
- Compact design (50mm depth)
- User Friendly HMI
- Real time cycle-by-cycle measurement of high accuracy, true RMS voltage, current, power, demand, and energy
- Revenue grade meter (anti-tamper enclosure and energy metering accuracy)
- Class 0.2S (IEC 62053-22)
- Advanced Time Of Use (TOU) features for any complex billing scheme: 16 Energy sources include external digital pulses, up to 4 seasons, 4 daily profiles, 8 Tariffs, flexible automatic calendar
- Vector diagram and symmetrical components
- Harmonic Analysis: THD of voltage and current, custom alarming, TDD, K factor, Crest factor. Individual harmonics, up to the 50th harmonic.
- Voltage Calculation, analysis & Recording: ½ cycle RMS calculation, symmetrical components, Voltage Dips/Sags, Interruptions, Swells, Unbalance, Transient and THD events recording.
- Built-in Communication Ports:
2 x ETH (independent interfaces),
RS-485
Optical port (IR)
USB C
- Protocols
IEC61850, Ed.2 (MMS and Goose support)
DHCP, RSTP
Modbus RTU/TCP
MODBUS Master
DNP3/ DNP3.0/TCP (level 2)
IEC60870-5-101/104
DLMS (future)
- Onboard memory: 16GB
- Programmable controller: up to 64 control setpoints, up to 8 conditions OR, AND, arithmetical functions logic, extensive triggers, programmable thresholds and delays, relay control, event-driven data recording
- Waveform sampling rate 32, 64, 128 or 256 samples per cycle;
- Virtually unlimited continuous waveform recording
- 1-ms resolution for digital inputs
- 16 fast Data Recorders (16 parameters on each data log): From ½ cycle RMS to 2 hour RMS envelopes; programmable data logs on a periodic basis and on internal or external trigger
- 32 digital internal counters for counting pulses from external sources and internal events
- 16 internal programmable timers (½ cycle to 24 hours)
- Standard 1A or 5A current inputs
- Flex Clamp: 200A/2V, 30A-300A-3000A/3V
- Optional: 40mA inputs, designed for:
SATEC HACS CTs
DC metering: Current Measurements using Hall Effect Sensor
The SATEC PRO Series can operate as a multifunctional DC power meter. The device is based on the EM235/PM335-HACS model. Utilizing Hall effect sensors, it is capable of measuring DC voltage up to 3000V DC* and DC Current up to 4000A*, calculating DC Power and DC Energy with 0.2% Accuracy.
Applications: kWh DC Power Meter, DC Billing Meter, DC System Monitoring, Bi-directional DC meter.
Digital & Analog I/O Options
- Built-in I/O: 2 digital inputs; 1 SSR output; 1 analog input
- Add-on I/O: Up to 3 add-on I/O modules:
- Total:
- Up to 26 DI (dry/wet),
- Up to 9 Relay outputs
Up to 4 Expansion Modules Side by Side:
- Up to 2 expansion modules: self-energized
Note: Cellular module requires additional module of AUX power supply
- 3 expansion modules: requires additional module of AUX power supply
Optional Built-in I/O Ports
- 2 optically isolated inputs, 24VDC dry contact; programmable de-bounce time from 1 ms to 1 s; control setpoints, 1pps time synchronization; 1ms sampling rate
- 1 Solid State Relay output; unlatched, latched and pulse operations, failsafe operation for alarm notifications; programmable pulse width; direct remote relay control through communications
- 1 optically isolated analog input; 1mA to 20mA
Digital I/O
8 DI: 8 optically isolated digital inputs; options for 24V dry contacts and options for 24/48/125/250V AC/DC wet inputs. programmable de-bounce time from 1 ms to 1 sec; 1ms sampling rate; control setpoints, pulse counters and Energy/TOU subsystem, 1pps time synchronization; 1ms sampling rate.
4 RO: 4 relays: Electro-Mechanic (EMR) or Solid State (SSR) relay option. unlatched, latched and pulse operations, failsafe operation for alarm notifications; programmable pulse width; direct remote relay control through communications.