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?

The output impedance of DP02-1K (and DP02-10K) is 50Ω. To obtain the specified ratio in the datasheets, you must use a 50Ω feedthrough terminator (we recommend using our model FTT1B) or set the scope input to 50Ω.

Can I use a high impedance termination to improve resolution for low level measurements?

Yes, you may use the regular 1MΩ scope input or a higher-impedance multimeter or DAQ for lower frequency measurements only. Short output cables are recommended.

Should I twist the input leads to partially reduce the input inductance and get more accurate HF measurements with less ringing?

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, it might not. On most measurements, you will not notice an improvement with the input leads twisted. Our probes have a low input capacitance, and the input resonance is typically above 100MHz.

What is your standard warranty?

Our standard warranty for all high voltage differential probe models is 3 years from the delivery date. An extended warranty is available.

I need to integrate your probes into our systems. What are the mounting options?

There are three available options for mounting our probes inside systems. The first option is to use the available holes on the bottom of the probes: 5 x 6-32 screws for DP02 series (and 6 x 10-32 screws for DP20 and DP30 series probes). The second option is to use the DP02-FA mounting flange with 4 x 10-32 or 4 x 5mm screws placed along the probe width. The third option is to use the DP02-FB mounting flange with 4 x 10-32 or 4 x 5mm screws placed along the probe length.