I need to check (out of circuit) caps. My "Extech" digital multimeter has that feature. When I use the meter the zero level is 0.084nF due to probe cord, I presume. When I measure 1000, 1500, & 2200 uF caps the meter reads 0.206 to 0.268nF. This cannot be correct! Is my problem that the electrolytic is talking back at me? Seems I recall that in my dim past that electrolytics lie when measured. How can I measure these buggers?