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TK9420 Series Voltage Probe (9k-30M)

Brand:

SCHWARZBECK

TK9420 Series Voltage Probe (9k-30M)
  • Product Description
  • Main features
  • Technical parameters
    • Commodity name: TK9420 Series Voltage Probe (9k-30M)
    • Commodity ID: 1064738240528535552
    • 品牌11: SCHWARZBECK
    • 描述: Specially designed for measuring power electronic equipment, such as switching power supplies with a strong interference spectrum in the kHz frequency range.
    • 品牌: SCHWARZBECK

    Applications :

    Voltage probes are preferred        when using a LISN is difficult or even impossible due to the high current draw of the device under test .

           The TK 9421/TK9422 are specially designed for measuring power electronics such as switching power supplies with a strong interference spectrum in the kHz frequency range.

            For a functional check of a probe with a sine wave signal generator, note the output voltage calibration reference in typically 50Ω load. Connect a small 50Ω carbon resistor in parallel to the probe; otherwise a high reading of almost 6dB (twice the signal generator voltage) will be observed. The probes are not shielded to keep the input load capacitance to only 4pF. In the presence of strong electric fields, it may be necessary to slide a metal tube or copper foil over the probe body and ground it.

           The voltage divider VT 9420 (TK 9420 option) can be used to determine the approximate RF impedance of an unknown EUT according to CISPR 16-2. Two measurements are required, one without the voltage divider and one with the voltage divider. The difference between the two measurement results can be used to calculate the impedance of the measured object. Such calculations can only be approximate and the uncertainty increases above 10MHz.

  •  

    Specification

    model

     

    TK 9420

    TK 9421

    TK 9422

    input resistance

    1.5kΩ‖4pF

    1.5kΩ‖4pF

    5kΩ‖4pF

    Frequency Range

    9kHz-30MHz

    (9)150kHz-30MHz

    (9)150kHz-30MHz

    attenuation

    30dB

    30dB

    40dB

    Voltage division accuracy

    30 kHz-30 MHz

    +/-0.5 dB

    150 kHz-30 MHz

    +/-1 dB

    150 kHz-30 MHz

    +/-1 dB

    voltage range high frequency

    AC50/60Hz

    DC

    30V

    2.5 kV

    4.4kV

    100V

    10kV

    15kV

    100V

    10kV

    15kV

    Maximum power

    -

    20 watts

    30 watts

    Receiver input impedance

    50ΩSWR ≤ 1.1

    50ΩSWR ≤ 1.1

    50ΩSWR ≤ 1.1

    Internal coupling capacitance

    10nF

    1.25nF

    1.25nF

    audio impedance

    10nF + 1.5kΩ

    1.25nF + 1.5kΩ

    1.25nF + 5kΩ

    coaxial cable

    2m BNC

    2m BNC

    2m BNC

    weight

    180 grams

    200 g

    400 grams

    size

    175 mm x ∅23 mm

    380 mm x ∅23 mm

    440 mm x ∅23 mm

    terminal jack

    4 mm

    4 mm

    4 mm

    Ground connection : insulated wire, banana plug

    4 mm

    4 mm

    4 mm

    option

    Plug-in distributor VT 9420

    -

    -

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