Resistance - Fluke 8588A Operator's Manual

The current path between the Product terminals is not made when
the current functions are not in use or when front or rear terminals
are deselected.
The rear input terminals may be used to measure currents up to 2 A
only. The rear input A terminal does not share the front panel
automatic protection circuitry, and is instead protected by a fuse
mounted on the rear panel.
Maximum input current capability and protection: The front input
terminals may be used to measure currents up to 30.2 A with
protection for all ranges up to 30.2 A. The front input A terminal
protection for current ranges 1 A and lower has an overload
protection feature if the input significantly exceeds full range. This
protection is automatic and self-resetting, and does not interrupt
current flow. It remains engaged for 1 second after the overload is
removed to minimize circuit interaction and relay reactivation.
Damage will occur if >30.2 A is applied to the front current
terminals and the current source maximum compliance is >5 V.

Resistance

Push  to use the Resistance Measurement (Ohms) function. The
Resistance Measurement function provides 2-wire measurements using the
INPUT HI and LO terminals, or 4-wire measurements when you use the HI and
LO SENSE terminals. The available ranges are 1 Ω to 10 GΩ, all with 202 %
overrange.
Ohms Menu
This section explains the Ohms menu.
 (Range): Range selection is made with this softkey and the navigational
keys. The ranges available change with ohms mode. In 2W and 4W Normal, and
4W Tru you choose Auto or from 1 Ω to 1 GΩ. In 2W and 4W HV mode, the
ranges available are 10 MΩ to 10 GΩ. Highlight the choice and then push
.
 (Resolution): Resistance has resolution from 4 1/2 digits to 8 1/2 digits.
The default is 7 1/2 digits. Choose the resolution with the softkeys or use the
navigational keys and push .
 (Mode): There are five resistance modes, 2W Normal, 4W Normal, 4W
Tru, 2W HV, and 4W Hv. See Resistance Modes.
 (Lol): This softkey is context sensitive, available for all modes except 2W
HV and 4W HV. For many of the ohms ranges, LoI ON changes the
measurement current which reduces the self-heating in the DUT or to avoid
conduction of any parallel semi-conductor junction. The same 10 ranges, 1 Ohm
to 1 G Ohm, are available with LoI ON or OFF. The range and current used for
any range are shown in the information portion of the display. See Table 9 for the
current stimulus used based on the Product ohms range.
Reference Multimeter and 8 ½ Digit Multimeter
Note
WCaution
Functions
31