SIRIUS® XHS-PWR is a unique 2-channel data acquisition device designed for the direct measurement of current, high voltage, and power. It features HybridADC signal conditioning technology and an integrated, patented DC-CT® current transducer for highly precise current measurements.
 
The SIRIUS® XHS-PWR is the ideal power analyzer for in-vehicle fleet monitoring of electric and hybrid vehicles. The device comes with award-winning DewesoftX software and an industry-leading 7-year warranty.
 
SIRIUS® XHS-PWR overview
Vehicle electrification is the major trend for driving innovation in the automotive field. This requires the implementation of intelligent management and smart distribution of in-vehicle electric power. The development of efficient and EMC emission-less electric components like electric motors, inverters, and charging stations, at the power management and semiconductor level is in full swing. Precise voltage and current measurements are required for the prediction of vehicle energy consumption for both development and vehicle operation.
 
HybridADC signal conditioning technology
The SIRIUS® XHS-PWR implements our new state-of-the-art Hybrid ADC signal conditioning technology. It is capable of doing both high bandwidth transient recording and very high dynamic alias-free data acquisition. Both modes are software selectable per every channel and are able to run simultaneously.
 
HybridADC mode of operations
High bandwidth mode
High dynamic alias-free mode
 
DC-CT® current measurement technology
SIRIUS® XHS-PWR is the first product that provides a 1000 A calibrated range with 2000 A peak current sensing up to 2000 V state-of-the-art isolated current sensing technology with a core diameter of 5 cm only.
 
DC-CT® represents an innovative principle of isolated measurement of AC and DC currents. This compact-sized patented current measurement technology allows you to measure peak currents and leakage currents up to 2000 A. And it can do it with high bandwidth and ultimate performance.
 
DC-CT® is energy-efficient, compact in size, low noise, and cost-effective current measurement technology. Existing products range from 2 A and up to 2000 A, up to 1 MHz bandwidth, with target accuracy from 0.1% down to 0.01%.
 
SIRIUS® XHS-PWR devices overview
We are offering different SIRIUS® XHS-PWR device models:
 
SIRIUSi-XHS-1xHV-1xDC-CT-1000A: high-voltage range up to 2000 V and high current rate up to 2000 A peak.
SIRIUSi-XHS-1xHV-1xDC-CT-250A: high-voltage: up to 2000 V and current rage up to 500 A peak.
 
All devices are equipped with our HybridADC signal conditioning technology capable of 15 MS/s sampling rate, 5 MHz bandwidth (Voltage), and >500 kHz bandwidth (Current). The device chassis is IP67 protected and can work at -20 °C to +70 °C.
 
All devices are available in two versions for connecting up to your power lines:
 
Universal ("UNI"): using the universal, connector-less version, you can install your power lines directly through the unit as shown in the image.
Connector ("CON"): the connector version are using PowerLok 500 connectors for connecting to your power lines. 
 
Safety and isolation
Safety first! SIRIUS® XHS-PWR data acquisition hardware and signal cables are designed and tested according to the EN 61010-1 safety standard, including high voltage interlock and temperature monitoring.
 
Interface and connectivity
A single Ethernet cable is required for data transfer, power, and synchronization. This simplifies the setup and configuration for in-vehicle testing applications. For testing multiple in-vehicle components more devices can be connected via a dedicated 6-port network switch (DS-6xLAN-L1B) which provides PTPv2 synchronization for synchronizing the devices.
 
SIRIUS® XHS-PWR instruments offer many data interface options for reliable integration into other systems. The data can be transferred to any host using the OPC UA industry-standard data protocol. In parallel the data can also be available over XCP and CAN protocols, allowing connection to ECU calibration software packages.
 
Connect and synchronize multiple units with DS-6xLAN switch
Multiple SIRIUS® XHS-PWR can easily be connected using our industrial DS-LAN ethernet switches. Our ethernet switches can provide power, synchronization, and data to multiple connected devices.
 
We have two options:
DS-18xLAN: Our most capable Ethernet switch is an 18-port network switch that supports high-speed connectivity up to 10 Gbps. It features a PTP synchronization mechanism and offers a passive PoE option for powering external Ethernet devices. It comes in three variations with rugged LEMO and RJ45 connectors.
DS-6xLAN: This one is a 6-port gigabit network switch with 4 downlink ports on the front panel and 2 uplink ports on the back panel.
 
Award-winning software included
All Dewesoft data acquisition systems are bundled with award-winning DewesoftX Professional data acquisition software. DewesoftX offers advanced data recording and signal processing features and is very easy to use.
 
Applications
SIRIUS® XHS-PWR data acquisition systems are designed for testing electric vehicles and their components. Some of the main applications include:
 
Powertrain efficiency
From test bench to in-vehicle verification. SIRIUS-XHS-PWR provides safe and precise power measurements from the main high-voltage battery. Additional torque and speed measurement from wheel/axle yield data for overall powertrain efficiency by calculating the ratio between output mechanical power and input electrical power.
 
Real-drive testing
Perform standardized driving cycles such as WLTP, NEDC, WMTC, etc., and determine the driving range and full power analysis.
 
Total power consumption
Use multiple SIRIUS® XHS-PWR devices for total power consumption analysis, not only the main battery and power train but also auxiliary systems such as air conditioning and in-car entertainment systems.
 
Transient analysis
With 5 MHz bandwidth SIRIUS-XHS offers transient analysis and helps identify unwanted EMI effects using harmonic analysis.