• RE: probe compensation circuit

    so the questions are

    1 do i need a compensation circuit
    2 is there an invert function or use math
    3 is maximum rated voltage for both scope comparable

    thanks
  • RE: probe compensation circuit

    mso 3034 pic
  • RE: probe compensation circuit

    pg 104 list specs for the dso 3064

    is there an channel invert on a mso 3034
    if i want to invert the waveform on a mso 3004 do i need to display a math function (CH1 * -1)

     
  • RE: probe compensation circuit

    Hantek HT25 Auto Ignition Probe

    The HT25 Auto-Probe is a type of inductive capacitance probe, intended for use with an oscilloscope. Its purpose is to help diagnose engine ignition problems. It works by displaying a waveform corresponding to voltage against time for a cylinder parade.

    The capacitive sensor is designed to measure the voltage that is generated in the secondary forces the ignition coil (transformer). The sensor adjusts the signal for optimal display on the screen of the ignition process of a digital oscilloscope. Tongs are sturdy and durable construction, earth clamp jaw is large enough to easily fit in the engine compartment and the overall ergonomics underscores the long cable length 2.5 m

    Attenuation sensor is 1000:1, that means 1V displayed on the oscilloscope grid represents the secondary 1kV

    Auto ignition probe HT-25 can be used with most oscilloscopes and motor testers from other manufacturers assuming, that oscilloscope has invert display function and attenuation setting to value 1000:1 or 10000:1.

    Auto ignition probe HT-25

    Auto ignition probe HT-25 HT -25 are designed to measure high voltage the output of the ignition coils respectively of the secondary winding or secondary or power output ( for high-voltage diode) . capacitive sensor can be be used to capture high voltage waveforms, both conventional distributor ignition systems and on systems without distributor (DIS ) - the fully electronic ignition systems . For the diagnosis of the secondary coil on plug systems (EFS / COP ) is necessary use extension adapter coil on plug. 

    Use the diagnosis

    Given the very high voltage (up to 40kV ) that for secondary circuit typically not possible perform measurements directly connecting the output of the coil, as is the case with measurement of primary. Trying to such measurement could seriously endanger health technology and certainly would lead to the destruction of oscilloscope and computer. to measure Therefore, secondary use capacity and inductive sensor. involvement pliers is simple. First of all involved ground clamp pliers the motor housing , then clipped with pliers Spark cable , or the extension adapter, connector clamp connects the BNC oscilloscope input , start the engine and measure can begin. Pliers features used to measure the ignition on one cylinder , for a test to secondary four-cylinder engine , it is necessary 4 used pliers and possibly 4connection adapters. 

    Examples of use - Ignition systems:

    • conventional spark systems (with distributor) 
    • CIC (Coil in Cap) as GM HEI, Toyota, Honda, Nippondenso etc.
    • DIS (no distributor) fully electronic ignition. With the extension, also EFS / COP

    Control Program HANTEK 3064 / A and 1008C are pre-measurement for very precise diagnosis of the secondary. In the preset measurement is integrated into the formula to calculate the values spark voltage (needle) voltage discharge at spark, burning time and duration inductive.

  • RE: probe compensation circuit

    it is a passive circuit, there is no power/excitation applied to the probe.

    i want to input to a tek scope 1Mohm, 13pF

    can you make a compensation circuit for the attached pdf

    thanks
  • probe compensation circuit

    i need a compensation circuit to connect the following probe to a mso3004
    the waveform observed is around 120 Hz
    the probe is a Hantek HT25
    see attachment

    Thank you in advance for your help