Configuring A Channel To Measure Resistance - Fluke Hydra Series II User Manual

Configuring a Channel to Measure Resistance

Perform the procedure in Figure 2-6 to configure a channel for measuring resistance. In
preparation, the instrument must be in the inactive mode (not scanning or monitoring)
and the desired channel must be selected (see Figure 2-3). To exit at any time (changes
not saved), press the C key.
The resistance to be measured can be connected using one channel (two-terminal
connection) or two channels (four-terminal connection). The four-terminal connection
provides increased measurement precision. The two channels used in a four-terminal
connection are a decade apart (n and n+10), for example, channel 3 (n) and 13 (n+10).
Only the lower channel is configured.
Restrictions
Four-Terminal Channels. Four-Terminal configurations are limited to channels 1 to 10
(n). The channel a decade higher (n + 10) is automatically reserved for use.
FUNC
ENTER
ENTER
ENTER
Figure 2-6. Configuring a Channel to Measure Resistance
Selecting the Resistance Mode.
SET FUNC
FUNC key to access the SET FUNC (Set
Function) menu. Press the up/down arrow keys
OFF
until Ω (ohms) is displayed, then press the
°F [°C]*
ENTER key.
Hz
Ω
VAC
V DC
Selecting the Measurement Scale.
SET FUNC
fixed scale or Auto (autoranging). A fixed scale
Auto
indicates an upper measurement limit.
10.000 M
example, the 30.000 kΩ scale measures 30 kΩ
3.0000 M
ohms or less. Measurements beyond the scale
300.00 k
limit will cause an OL (overload) display. The x1
30.000 k
(unity or x 1) multiplier indicates a reading in
3.0000 k
ohms; the k (kilo or x 1,000) multiplier indicates a
300.00
reading in kilohms; the M (mega or x 1,000,000)
multiplier indicates a reading in megohms.
* Depends on
In Auto (autoranging), the instrument chooses the
temperature scale.
scale for the best measurement resolution.
When scales are changed, the scan is
** Channels 1 to 10.
momentarily slowed.
Selecting the Terminal Mode. Select the two-
SET FUNC
terminal (2T) or four-terminal (4T) mode.
2T automatically clears configuration data from the
4T** channel a decade higher (n+10). For example,
selecting channel 3 for 4T operation will
Typical
automatically clear channel 13 of all configuration
Required data and lock it out from further use.
Front Panel Operations
Configuring a Measurement Channel
Press the
Select a
For
4T
2
op18f.eps
2-11