ENTUBE TE (750V 10V)

Entube TE Three Phase Voltage Sensor OVERVIEW The Entube-TE series is designed for high quality three-phase measurements in a very compact form factor without need for power supplies. This series covers the ranges of ±100V, ±200V, ±300V, ±400V, ±500V, ±750V and ±1000V, with up to 85kHz bandwidth and 0.2% accuracy. The Entube-TE sensor operates as a differential divider network with an anti-aliasing filter on its output. It generates a ±5V or ±10V scaled down version of the line-to-line and line-to-ground voltage on its input terminals. Depending on the software configuration, the sensor outputs phase-to-phase voltages for Delta configuration, or phase-to-ground for Wye configurations. This signal can then be processed by most computer based measurement platforms. One Entube-TE replaces 3 sensors, and only requires one cable for all three signals. This allows for very high channel densities, while delivering high performance for a low cost. SPECIFICATION Entube TE 100V Bandwidth (-3dB point) 200V 85kHz Integrated sensor noise (Referenced to input) Gain (Using 10V standard output voltage) Input Impedance 500V 750V 25kHz < 60μV < 100 μV < 130 μV < 170 μV < 220 μV < 290 μV 10 20 30 40 50 75 100 25kΩ 33kΩ 20kΩ 20kΩ 50kΩ HARDWARE DESCRIPTION 1000V < 30 μV > 2 MΩ Eletrical 25kΩ The Entube-TE is a differential voltage down-converter designed for 3-phase systems. It outputs all line-to-line and line-to-ground signal pairs. Delta or Wye measurements can be made depending on the input configuration of the digitizer being used (NRSE or Differential). > 3 MΩ 15kΩ Integrated sensor noise (Referenced to input) Accuracy (percentage of reading) ±0.2% (±0.05% Typical) Gain (Using 10V standard output voltage) Max total phase shift at 60Hz < 0.05° Common mode rejection ±2000V Withstanding differential mode surge voltage ±1000V Mounting Type DIN Rail Connectivity (Connector for power in and signal out to/ from the sensor) Input-Output non-linearity Output voltage Gain temperature drift RJ45 Ethernet jack < 250 ppm ±10V , ±5V ±50 ppm/°C Differential input dynamic range Signal Layout Common mode rejection 52 dB Power Supply Voltage None Output type Output Offset Voltage Mechanical Weight 400V 50kHz > 1 MΩ Line Output Impedance Outer Dimensions 300V Single-ended signal < ± 10µV (on ±10V signal) Environmental Operating temperature – 25 to 70 °C Storage temperature – 40 to 80 °C 1.4” x 1.4” x 4.5” 198 g (7.0 oz) 650 Washington St, San Francisco, CA 94111 (708) 374-8658 The three input phases connect to the sensor via a Spring-cage, while the conditioned signals from the sensor come out on a standard Ethernet jack. The Entube-TE can be mounted anywhere between the signal source and the data acquisition system. A female-screw on the low voltage side of the sensor allows for DIN rail mounting, and serves as a safety ground. A standard Ethernet cable is used to carry the conditioned signals from the sensor. The orange, brown and blue pairs carry phase voltages; the green connects to ground and DAQ reference. To avoid limiting the signal bandwidth and to eliminate cross-talk between pairs, a shielded STP Ethernet cable with a maximum length of 100m (330’) should be used. This will keep good resolution beyond the 10th harmonic on a typical 60Hz system 1 MERCHANICAL DIMENSIONS HARDWARE CONFIGURATION A. Safely connect Data Acquistion ground to ground of sensor. A Standards and Certifications ● CE ● RoHS Compliant B. Securely connect one end of a RJ45 to the output terminals, and the other end to the inputs of your breakout board or data acquisition unit C. Securely connect wire between the source ofmeasurement and an available Entube TE’s input screw terminal. C B DANGER THIS SENSOR IS NOT A SAFETY DEVICE AND IS NOT INTENDED TO BE USED AS A SAFETY DEVICE. This sensor is designed only to detect and read certain data in an electronic manner and perform no use apart from that, specifically no safetyrelated use. This sensor product does not include self-checking redundant circuitry, and the failure of this sensor product could cause either an energized or de-energized output condition, which could result in death, serious bodily injury, or property damage. 2