Valhalla Scientific 4300C Operation Manual page 64

Programmable digital µ-ohmmeter
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Programmer's Manual for the correct command syntax. The 4300C is assumed
to be at address 12.








The execution of this program results in a continuous display of the resistance
measurement, updated at the conversion rate of the instrument's A-to-D
converter.
The result is returned in scientific notation, in ohms. As an example, assume
that the 4300C is in the 2V and .1mA ranges and the front panel display
indicates "10567" which is 10,567Ω. The program above is executed.
The 4300C responds with the following number (contained in A$):
+1.0567E+4
This is the measurement in scientific notation, in ohms. The "E" signifies a
4
power of 10
, or 10000. This means that the significant digits of the response
should be multiplied by 10000.
In another example, assume that the 4300C is in the 20mV and 10A ranges, and
the front panel display indicates "1.9095" which is equal to 1.9095mΩ. The
program is executed.
The 4300C responds with the following number (contained in A$):
+1.9095E-3
This is the measurement in scientific notation, in ohms. The "E" signifies a
-3
power of 10
, or 0.001. This means that the significant digits of the response
should be multiplied by 0.001.
An over-range condition is indicated by:
+2.0000E±?
Each response is terminated with an "output data terminator" which is used to
signal the end of the transmission to the controller.
The default terminator is a
may be changed using the "D" command. Refer to
section of this chapter.
Chapter 6 – Remote Operations (IEEE Interface)
C
L
(carriage-return and line-feed). The terminator
R
F
6-9
Output Data Terminator

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