Products > Test Equipment
AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
deflicted:
Anybody measure the open circuit voltage in diode test mode yet? Neither the eBay listings nor the specs on the Zotek site seem to give a value for that.
ocw:
--- Quote ---Anybody measure the open circuit voltage in diode test mode yet? Neither the eBay listings nor the specs on the Zotek site seem to give a value for that.
--- End quote ---
The diode test voltage is 3.223 volts.
The short detect voltage is 1.0070 volts.
The k ohm resistance measurement voltage appears to be the same 1.0070 volts.
The M ohm resistance measurement voltage is 0.5309 volts.
ocw:
--- Quote ---The M ohm resistance measurement voltage is 0.5309 volts.
--- End quote ---
I was going too fast on that one--the M ohm resistance measurement voltage is also 1.0070 volts unloaded. I forgot to use my high impedance electrometer for that...
deflicted:
--- Quote from: ocw on July 13, 2017, 12:55:49 am ---
--- Quote ---The M ohm resistance measurement voltage is 0.5309 volts.
--- End quote ---
I was going too fast on that one--the M ohm resistance measurement voltage is also 1.0070 volts unloaded. I forgot to use my high impedance electrometer for that...
--- End quote ---
Thanks. I was kind of scratching my head about that, wondering why a DMM would output a lower voltage for a M ohm range than for a k ohm range. I don't know enough to know whether or not you'd expect that in a DMM, but it seemed counterintuitive.
RedSky:
How noisy is the meter when measuring microvolts? say shorting the leads what does the display read?
I'd like to see the accuracy comparison with a high end bench or hand held multimeter at the microvolts level. I mean i'm not expecting much considering its a $20 meter, but a bit of fun to see.
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