1.1nF measured while in all the above mentioned ranges, filter on or off.
I know this is a few days old but I'm not sure if you understood my comments re the sampling update rate.
5/s is Slow mode
50/s is middle mode
150/s is Fast mode
Hi Tautech,
thanks for the summary, your comments about sampling rate were received loud and clear.
In the mean time i looked for a multimeter (not a power analyzer) capable of DCV & DCI dual reading function without mechanical relay's input scanning, among the "low cost" ones i found the Hameg HMC8012, though not brilliant for AC performance and price point; the guy responsible for that activity is now dealing with R&S representative.
But i'm still on the market for a NEW bench DMM for personal use, but there are still two things that prevent me to buy the SDM3055 :
1) input capacitance & impedance transient : 1.1nF seems pretty high but i'm mainly worried about what happens during the filter's insertion (as spotted by Martin @ 07:30
), i still wonder if it happens also with low DCV ranges in HI Z mode, but in any case this is near to be a deal breaker for me.
2) actual screen's refresh rate : it seems quite far from declared numbers (that i assume to be valid for USB / LAN data exchange) even after the last FW update, at least judging on what i'm seeing on youtube; dunno if there is still room for improvements but i'm inclined to think that we will not see drastical changes.
I already have three handheld DMMs and from the incoming bench multimeter i expect / pretend :
1) variable ADC's precision / sampling rate (max sps >=100)
2) parameterizable ADC's samples filtering
3) fast actual screen update, at least on par with medium sampling rate
4) clear text and wide angle of view screen
4) high stability input impedance & HI-Z mode for DCV (>= 10Gohm)
5) external trigger input
6) PC interface
7) 4 wire resistance reading
8 ) decent VAC performance within 40-20000Hz Hz
To be honest i'm a bit biased toward old styled VFD display DMM's for text clarity, fast response and very wide angle of view, but at the same time i'm intrigued by features like trends chart and so on.
I cannot justify to myself a Keithley / Agilent ones for home dickering and there to much lemmons on used market to go in that way, this Siglent seems well equipped but some of the listed points are still not satisfied.