RS PRO RSDM-9060, User Manual

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from affecting
measurement accuracy.
With autozero disabled
(Off), the RSDM-9060/
9061 measures the offset
once and subtracts the
offset from all subsequent
measurements.
Display
When turning On the Auto Zero, the
display shows an icon
indicating the Auto Zero mode is
currently being activated.
F4 (Input R) key to
select input
resistance Background
Specify the input
impedance to the test leads
(Input R). This specifies
the measurement terminal
input impedance, which is
either Auto or 10 M Ω
.
The Auto mode selects
high impedance (Hi-Z) for
the 100mV, 1 V and 10 V
ranges, and 10 MΩ for the
100 V and 1000 V ranges.
In most situations, 10 MΩ
is high enough to not load
most circuits, but low
enough to make readings
stable for high impedance
circuits. It also leads to
readings with less noise
than the (Hi-Z) option,
which is included for
situations where the 10
MΩ load is significant.