Section 3
OM6530-C1-00
19 November, 2019
3-1
3. QUICK MEASUREMENT GUIDE
The 6530 although having many features and functions allowing in depth control of the
measurement process, has been designed for ease of use. The Auto ranging and Auto reverse
functions are enabled by default and are the best choice in most applications. This section
outlines the basic measurement procedure using this mode of operation. The advanced
measurement options and features are all outlined in remaining sections of this manual.
3.1.
RESISTANCE MEASUREMENT
Most high and ultra-high value resistors come as a 2 or 3 terminal device. An example of each
are the Guildline model 9336 resistor which is a 2-terminal device, and a model 9337 which is a
3-terminal device. The measurement procedure for both the 9336 and 9337 is identical. They
both have a “Source” and an “Output” connector. The “Source” (voltage in) connector of the
resistor should be connected to the “Source” (voltage out) connector of the 6530. Note that the
center pin is the applied voltage with respect to the outer shield (chassis ground).
Note: Lethal voltages of up to 1000 volts may be present at this output and appropriate
precautionary measures are necessary.
The “Output” (current out) connector of the resistor should be connected to the “Input” (current
in) connector of the 6530. Note that the center pin is the return current with respect to the outer
shield (chassis ground). The inner shield (electrometer ground) is shorted to the outer shield to
allow for a common reference to the internal voltage supply. Refer to Figures 3-1 and 3-2.
3.1.1.
RESISTANCE MEASUREMENT PROCEDURE
To make a resistance measurement, do the following steps.
1.
Connect the unknown resistance device.
2.
Select the
<Measure>
function key in the
Main Menu
3.
Select the
<Ohms>
function key in the
Measure Option Menu
4.
Select the
<Setup>
function key in the
Measure Ohms Menu
5.
Select the
<Parameters>
function key in the
Ohms Setup Menu
6.
Select the
<Max Volts>
function key in the
Ohms Parameters Menu
7.
Select the “
Previous
”
key twice to return to the
Measure Ohms Menu
8.
Select the
<Start>
function key to initiate the measurement cycle.
9.
The 6530 will proceed to determine the correct range and take continuous
measurements.
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