For example: Agilent E4440A or Anritsu 68369
- Test and measurement equipment
- EMI Receivers / EMC Analyzers
- Rohde and Schwarz
- Rohde and Schwarz ENV216
Two-Line V-Network
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Rohde and Schwarz ENV216 Overview
Features
- Frequency range 9 kHz to 30 MHz
- Power-handling capacity 16 A, constant current
- 150 kHz highpass filter, switch-selectable
- Built-in 10 dB attenuator and pulse limiter
- V-network to CISPR, EN, VDE, ANSI and MIL-STD-461 D and E; meets CISPR/A/413/CD
- Calibrated to CISPR 16-1:1999 and ANSI C63.4
- Air-core design
- Artificial hand
- Remote control with TTL levels via optocoupler
The Two-Line V-Network R&S ENV 216 (50 µH + 5 O)//50 O satisfies the requirements of VDE 0876 and CISPR Publ. 16-1 for V-networks (incl. the requirements of the planned extension for CISPR/A/413/CD regarding the isolation between EUT and power port and the impedance with respect to magnitude and phase) in the frequency range 9 kHz to 30 MHz. It is based on air-core inductances and contains an artificial hand.
A 16 A female connector with earthing contact is provided for connecting the EUT. Various models with country-specific connector systems are available.
To prevent the test receiver from being overdriven by low-frequency spectra of high level, a 150 kHz highpass filter can be cut in. To ensure standard impedance irrespective of the receiver input attenuation, the R&S ENV 216 is equipped with a 10 dB attenuator. A built-in pulse limiter protects the receiver input.
TTL control inputs that can be driven by controllers and R&S test receivers are provided for remote control in automatic test systems (phase selection and activation of highpass filter). Optocouplers revent pick-up of external RFI. In the case of AC supply operation, the operating voltage for the built-in logic circuit is obtained in a range from 90 V to 250 V and 47 Hz to 63 Hz. This covers all standard applications. If the EUT is operated with low AC voltages or DC voltages up to 50 V, the logic circuit is powered via an external plug-in power supply. Owing to its compact design and low weight, the R&S ENV216 is ideal for frequently varying applications and especially for on-site RFI voltage measurements on single-phase EUTs. Note that high leakage currents are produced because of the standard design of these V-networks. The networks should therefore be connected to a low-impedance protective earth system. In questionable cases, an isolating transformer should be used.
