Device Overview & Technical Specifications
Modified on: Sat, 7 Jul, 2018 at 4:22 PM
- The Powersense DC unit is designed to monitor the power consumption of up to five 48V DC rail power supply circuits.
- The current transducers allow for simple installation without the need to disrupt the monitored circuits.
- The measured voltage is common for all of the five current transducer sensors.
- The power voltage is connected to the input terminal (positive pole on the left).
- Values measured every 5s (other frequencies are possible as depending on requirements.
- The screw terminal is detachable for convenient connection of the input wires.
- The power is calculated as a product of measured current and voltage.
- Possibility of manual calibration of DC transducers for better precision.
- There are two LED indicator lights on the transmitter. A green LED indicates the presence of power voltage and a flashing red LED indicates operating status.
- The Power supply is protected from incorrect installation. If installed at the wrong polarity, the unit will be protected from shorting out.
- Power supply from monitored DC rail, acceptable voltage 24V..55V DC
- Protection against the wrong polarity of the power supply
- The maximum current through DC transducers: 50A
- The orientation of DC transducer against the DC wire direction is irrelevant; the absolute value of current is measured
- Measurement of DC voltage and current and power
- Radio band 433 MHz, range up to 100m, depending on the shielding of walls and electromagnetic interference
- Measurements every 5 seconds
- DC rail voltage indicated on the Homebase display
- The transmitter is intended for interior use, keep away from moisture, water, snow or ice
Examples of Usage
- Photovoltaics - monitoring of DC output, individual circuits
- Telecom System power usage monitoring (for ex. BTS tower power usage monitoring)
- Data Centers - UPS system battery health and power usage monitoring
- Battery installations - monitoring of charging and discharging
- Base Transceiver Station (BTS) - monitoring of radio equipment
|Product|| Powersense DC|
|Part||Transmitter without probes|| Transmitters with removable probes |
|Dimensions||110 x 80 x 26 mm||37 x 33 x 20 mm (without cable)||61 x 60 x 16 mm (without cable)||100 x 100 x 25 mm (without cable)|
|Weight||TBD||21 g||65 g||300 g|
|Temperature||-20 to 60 °C||-20 to 60 °C||-20 to 60 °C||-20 to 60 °C|
|Humidity||< 80 %RH non-condensing||< 80 %RH non-condensing||< 80 %RH non-condensing||< 80 %RH non-condensing|
|Interface||5x probe port (RJ-12)||1x port (RJ-12)||1x port (RJ-12)||1x port (RJ-12)|
|Power supply||24 to 55 VDC from monitored rail||from transmitter||from transmitter||from transmitter|
|Consumption||< 2 W||–||–||–|
|Radio protocol||proprietary protocol Chirp 433 MHz (868 MHz optionally)||–||–||–|
|Built-in sensors||voltage||DC current||DC current||DC current|
|Resolution of metering||1 W||–||–||–|
|Accuracy of metering||± 2%||–||–||–|
|Range of metering||5x < 400 A||< 50 A||< 100 A||< 400 A|
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