Question: Why am I getting a ratio of 1:500 on a DP02-1K (or 1:5000 on DP02-10K) instead of 1:1000 (or 1:10000 on DP02-10K) as in the datasheet specification?

 

Answer: The output impedance of DP02-1K (and DP02-10K) is 50 ohms. To get the ratio specified in the datasheet you have to use a 50 ohms in-line terminator or set the scope input on 50 ohms. We recommend using a 50 ohms output impedance especially for long cable runs.

 

Question: Can I use a high impedance termination so I can get a better resolution for low level measurements?

 

Answer: Yes you may use the regular 1Mohm scope input or a higher impedance multimeter or DAQ for lower frequencies measurements. Short output cables are recommended.

 

Question: Should I twist the input wires so I partially reduce the input inductance and get more accurate HF measurements, less ringing?

 

Answer: It depends on the source impedance, slew rate, and resonance of the entire test setup. In some cases it might be beneficial, in other cases not. On most measurements you will not see an improvement with the input leads twisted. Our probes have a very low input capacitance and the input resonance is beyond 100MHz.

 

Question: What is your standard warranty?

 

Answer: Our standard warranty for all of our high voltage differential probe models is three years from the delivery date. Extended warranty is available.

 

Question: I need to integrate your probes inside our systems. What are the mounting options?

 

Answer: There are three available options for mounting our probes inside systems. First is using the available holes on the bottom of the probes, 5 x 6-32 screws for DP02 series (and 6 x 10-32 screws for DP10 series probes). Second option is to use the DP02-FA mounting flange with 4 x 10-32 or 4x 5mm screws placed on the probe width. The third option is to use the DP02-FB mounting flange with 4 x 10-32 or 4x 5mm screws placed on the probe length.