The PNODE makes remote monitoring and big data analytics in the cloud possible.
The PN10 has a Wifi connection and the PN12 has a GPRS connection for sending measurement data directly to our cloud network.
The measurement data is analyzed and visualized.
PN10 WiFi Power and Energy Monitoring
The PN10 has a WiFi module to send measurement data directly to the cloud for storage and analytics. The PN10 has a compact size for easy deployment in any electrical installation (171 x 121 x 55 mm).
The measurement, isolation and data-processing chips of the PN10 are from Analog Devices Inc.
The PN10 has a robust ABS enclosure from Bud Industries Inc. for protection of the printed circuit board and the chips.
The PN10 kit includes a DIN Rail 12 Volt DC power supply and three current transformers.
PN12 GPRS Power and Energy Monitoring
The PN12 is the same as the PN10 but instead of a WiFi module it has a GSM/GPRS module for connection to cellular networks. A SIM card that is activated for mobile data is required when using the PN12.
The PN12 kit includes a GSM antenna.
4 Quadrant Power & Energy Measurements and Metering
The best way to get the most from the data is to have a permanent logger installed that records electrical power and energy parameters over a long period of time. In case of an unforeseen fault condition, the logger is already collecting data during the fault. You can do a root cause analysis for the fault with the available data. You can also use the data for analytics, historic trend analysis, pattern recognition and forecasting.
The PNODE measures several electrical parameters in 4 quadrant form:
- Single or Three phase AC voltage measurements up to 300V (CAT IV)
- Single or Three phase AC current measurements using a Current Transformer
- Power measurements: Watt, VA and VAR (4 quadrants)
- Energy measurements: kWh, kVAh, and kVARh (4 quadrants)
- Demand interval: 10m, 15m, 20m, 30m or 1 hour
- True Power Factor
- Frequency measurements
- Interruption duration time
- Voltage dips and swells (processed in the cloud)
- Temperature and Humidity measurements of the environment
The PNODE can be configured as single-phase or as three-phase (four-wire connection).
Measurements are taken in four intervals which are the 3-seconds, 1-minute, demand and 2-hours intervals. The 1-minute, demand and 2-hour intervals are calculated as a root mean square of 3-seconds measurement data.
The PN10 has a WiFi connection and the PN12 has a GPRS connection for Internet access. It is also possible to log data on the internal flash memory of the device. A software application is used to retrieve the logged data from the internal flash memory. A maximum of 15872 demand records can be logged internally on the PNODE. For example, when a demand interval of 15 minutes is selected, the maximum recording time is 165 days.
When using the PNODE in the WiFi or the GPRS mode, the device has an internal RAM memory to buffer data in a case when there is an Internet connectivity interruption. This is to ensure no data is lost during an Internet interruption. Below an overview of the buffer sizes:
- 3-seconds data: 520 records (Max. 26 minutes buffering)
- 1-minute data: 30 records (Max. 30 minutes buffering)
- 2-hours data: 12 records (Max. 24 hours buffering)
- Demand data: 108 records (For example, at a 15-minutes demand interval, max. 27 hours buffering)
Here below you can see the available standard current transformers (CT's) and their accessories. The left CT is for 100A, 200A and 400A ratings and the right CT is for the 600A and 800A ratings. A higher current rating means a bigger and a heavier current transformer.
Calibration and Testing for Precise Measurements
After an order placement, each individual PNODE is carefully electronic calibrated and tested for the rated voltage, current and frequency.
Precision calibrations are fully computerized where calibration results and the serial number are programmed in a non-volatile memory chip of the PNODE.
After calibration, the serial number and corresponding channels (phases) are hand written on each PNODE and on each current transformer. When installing a PNODE, the current transformers should be connected to the PNODE with the same serial number and to the respective phases to ensure precise measurements.
PNODE User Manual
Please download the PNODE user manual on the following link:
PNODE User Manual V1.0
Safety and EMC Certifications
The PN10 and the PN12 have successfully passed the required Safety and EMC compliance testing. The PNODE obtained the CE marking.
The PNODE is rated at CAT IV 300V conforming to IEC EN 61010-1 and IEC EN 61010-2-30 safety standards. CAT IV means that the PNODE can be installed at the source of a low voltage electrical power distribution installation.
The certifications can be seen in the PNODE user manual.
Contact Us
Please feel free to contact us for any questions, requests, or quotations at the email address below.