I also bought one of these, I did enable the multimeter function by restoring the keypad and connection to the socket.
I have identical issues as elebot.
- DC mV seems fine
- AC mV seems fine (even up to 100kHz)
- diode forward voltage indicates lower then on my other multimeter
- resistor test has large error in low resistor ranges, becomes smaller at larger resistance values
- capacitance test works but indicates large error. I measured a 1nF/1% devices and it indicates 0.95nF
About the scope:
It's think it's actually a nice scoop, menu's will have to get used at of course. I used a Tektronix AFG2021 AWG to generate signals and used a 50 Ohm terminator at the end of the coax. Vertical and horizontal scales are well within specs, automatic measurements like Up-p, Urms, frequency, rise and fall times come very close to those measured on my Agilent scoop and the settings on the AWG.
It has two acquisition modes, normal and fast. In normal mode it uses the entire memory, in fast mode it only uses so much as to fill the screen. Probably a fixed number of point, a similar function I have seen in Tektronix TDS3000 series. The number of waveforms displayed varies with horizontal setting, have not figured out the relation between number of waveform/s and horizontal setting.
This scope has no DPO like function, don't know if there are portable scoops out there that have this capability.
build quality is oke, the housing feels very solid and might takes some abuse, however I was suprised they used really poor quality screws to mount the display module. This model LCM is a 5.7" 640x480 panel, Data Image model FG 050720. They have good reliability but poor viewing angles and resistive pressure sensitive touchscreen. You have to look straight at it or from above, if you tilt the scoop backwards the image fades. If you look at the correct angle they give a very clear image.
The probes Micsigg supplied look like they are of of good quality, bit too large for my taste. I prefer Tektronix probes, much smaller size and nice flexable cable. Probably won't use them untill I run out of options.
I also spent a few minutes with a Siglent SHS806, but this product has much lower waveforms/s and a display with much lower resolution. So the Micsig really looked like a class higher compared to that.
The last portable scoop I used was a Tektronix THS720P, a very capable scoop imo, even though it's alomost 20 years in use, I think it can take a rest from now on.
Thinks I don't like? Yes of course. I don't think all the options are placed in the menu's in an intuitive way. Selecting the acquisition lenght is put under save/recall button, the acquisition mode under the scope menu and the refresh rate under the display menu. All funtions that are related to one another and could beter have been put in one menu.
Also I really dislike the scoop does not display it's actual sample rate on lower sweep times. The DC accuracy seems to have some issues. It needs constant calibration in the lowest settings of a divider range. Range 1 seems to go from 2mV to 50mV, range 2 from 100mV to 2V and range 3 from 5V to 20V/div. In the 2 lowest settings of range 1 and 2 you get quite a large DC offset which can be made zero by calibration. However this error keeps coming back after some time. In the 100mV/div setting this error is about 50mV!!! DC drift in this order I have not seen before in a DSO. Also the acquisition memory depth is 240k points, this half when 2 channels are being used, also the sample rate halfs when both channels are used. The internal ADC is a 8-bit two channel 500Ms/s device, so I wonder if Micsig just added those two numbers up or are they actually interleaving them on one channel