PanPower Electric Meters - Hardware and Security FAQ
PAN-10 and PAN-12 sensors must be installed on an un-shielded electric wire at the electric panel level. PAN-14 and PAN-42 sensors require external current transformers (CTs) for their current input and those are also installed at the electric panel level on an unshielded cable. All sensors are designed for AC powered devices only.
The typical measurement accuracy for the PAN-10/PAN-12 sensors is 2%. For PAN-10, it is designed for currents ranging between 3A and 63A and for PAN12, it is for currents ranging between 10A and 225A. Accuracy is not defined beyond these ranges. For more information please refer to the sensor datasheet.
PAN-14 uses a standard 5A-output current transformer (CT) to measure current. The primary current range is determined by the CT rating. The typical accuracy for PAN-14 is 2%, at the current range of 0.1A to 5A at the CT’s output (2%-100% of the full current range). For example, if a 100A:5A CT is used, the PAN-14 sensor’s accuracy is defined as 2% for a primary current of 2A to 100A.
Yes, the sensors measure true RMS current. The measurement is accurate even if the current waveform is distorted.
Each sensor is calibrated in the factory prior to shipment using high-accuracy equipment, to meet the specified accuracy levels. The calibration parameters are stored in the cloud and are used by PowerRadarTM to display the readings. When working with the bridge via Modbus TCP, the calibration parameters are stored inside the bridge.
No. There is no need to re-calibrate the sensors.
Power is estimated by PowerRadar using fixed voltage (based on Panel's Connection Type configured) and power factor values provided by the user during sensor deployment. Power is then aggregated over time to obtain the consumed energy value.
The current sensors do not provide sub metering accuracy because they only measure current (and not voltage or power factor).
In environments where power factor and voltage are stable, the overall accuracy of energy (kWh) measurements over time is expected to vary between 2% - 8%. Many of our customers choose to use our current sensors in such cases, due to the ease of installation and low-cost vs standard sub metering.
PAN-42 is a true power meter, and provides current, voltage, power and energy (kWh) measurement accuracy of 1%.
All current sensors (PAN-10/PAN-12/PAN-14) uses the PF as defined on the circuit the sensor is installed on through the Deployment Tool. The default value is 0.95.
This set up is supported using our Device Groups functionality, currently only available in Time View.
Short answer is no. PF is not the same identical across the site or panel hence to get the accurate PF, a PAN-42 must be installed on the specific device.
It has no effect at this time. The only sensor installation that is direction sensitive is for the PAN-42 sensor.
This is a rare use case, in most instances the cables of the same phase should be balance.
If you still suspect they are not, best option is to use one large current transformer to capture all cables with a single sensor.
The connector is used during the manufacturing process of the PAN-42. It is not intended for end users.
See full sensors specs in here. The main cause for inaccuracy with any of the sensors is the current level, 2% accuracy is only applicable for levels at 5% and above of the sensor rating (PAN-12: 225A | PAN-10: 63A)
PAN-42 currently is not part of our Modbus TCP solution. We are reviewing the business case for it, and will be considered going forward.
Yes
On VFD-driven systems, they must be installed on the 50/60Hz side of the VFD, not the variable-frequency side.
We have never seen an installation in which EM noise affects the current readings. If there is noise at the frequency of transmission of the sensors (434MHz/915MHz), this could cause reception issues between the sensors and the bridge – this will usually be seen as a high noise floor reported by the bridge.
Real Time Consumption is the site total at the moment you open the Site Dashboard, whereas the Managed Load shows the peak site power consumption for the last 2 weeks.
Push Notifications can only be sent to PowerRadar Users that have downloaded the PowerRadar app on the Mobile Device/Tablet and have logged into it at least once.
480V
No. The only limitation is in the current since that is what they are measuring. Please refer to the Specification Sheets for the Sensor Family in the Hardware and Security Guides and Datasheets section.
Dutch, English, German, Italian, Japanese, and Spanish. These can be set under the Personal Preferences section under the white silhouette icon in the upper right corner of PowerRadar.
Radio Signal Strength Index. It’s used to determine how strong the communication is between the sensors and the Bridge.
-30 dBm thru -75 dBm. If more than -30 dBm, move the Bridge further away from the sensor. If less than -75dBm, move the Bridge closer to the sensor.
Click on uninstall sensor on the device and enter the new sensor's serial number and install. The historical data will stay on that device so long as the device isn't deleted.
On Energy Time View, depending on the Group By category selected (Device Type, Zone > Panel, etc.) navigate to that uninstalled device(s) category and right click on the header and select "Show Uninstalled Devices" to view its historical data.
Different regions around the world have different frequencies utilized by the grid. To accommodate this, Panoramic Power has hard coded the power frequency into the sensors and therefore offers different versions of the same sensor (US, EU, Japan East, and Japan West). Using a sensor designed for one region in a different region results in wrong measurements and much higher wake up current.
Yes. For 1 minute interval data, it is available on PowerRadar for the most recent 3 months. After 3 months, the smallest resolution available to view historical data on PowerRadar is 5 minutes for up to a year. After a year, the smallest resolution available for historical data is 15 minutes. There are no data retention policies for 15 minute, 1 hour, 1 day, and 1 month interval data. If 1 minute interval data is paramount for your company, you can directly export the data within the first 3 months of its posting or set up an automatic Export Job.
You will need the 3 firmware files (available upon request by submitting a support ticket) to be put on a blank USB flash drive of 8GB or less in memory size, the Bridge, its power supply, an ethernet cable, and a computer/laptop.
It depends on how many sensors are within the Bridge's range and how often the sensors are operating (nonstop vs. only during operating hours). In the case where a Bridge has 25 sensors that are operating all day and all night, the recommended data plan would be 500MB per SIM Card.
This means the Bridge is checking the remote upgrade channel. This action does not disrupt the performance of the Bridge nor its connectivity to PowerRadar. A solid orange or solid green power LED is an operational state for the Bridge and is not a cause for concern.
Emergent Energy Ultrasonic Transit Time Meters - FAQs
The meters can be configured to work with a range of pipe sizes. Currently, our strap on ultrasonic flow meters will support measurement of pipes that range between 1" - 48" pipes. If there are any specific applications that falls outside of this range, please reach out to info@emergentmetering.com for further support.
Our ultrasonic flow meters work on a variety of pipe materials, as long as they are not jacketed or has excessive corrosion that might hinder transmittal of ultrasonic signal through the pipe. For this reason, PVC piping and copper piping are idealistic installations. Carbon steel and rigid pipe offers some complexity as there might be excessive corrosion inside the pipe. For installation onto painted surfaces, the installer should sand off (smooth) the painted surface.
The meters will work on water based applications, which included water and glycol blends that are within the meter's rated operating range.
Once the outside diameter of the pipe is entered into the meter, the meter will provide the actual installation spacing of the sensors to ensure a good quality signal.
The meters are configured for 24VDC power, but the supply power can range between 10VDC to 36VDC. If the customer's specific application has specific needs, we can also provide power converters for these specific applications. We can also provide pre-built panels that includes power supplies and the necessary integration components for our metering solutions.
The meters can communicate through a multitude of options. It can provide a scaled 4-20 mAmp signal as well as scaled pulsed outputs through the built in relay. There are also MODBUS RS-485 communication options.
Our panels are standard ABS low voltage enclosures that includes a cord whip and pre-mounted and wired components. Please discuss with us your specific needs and we can build a panel that will house our meter and meet your integration requirements.