720A Operation and Maintenance Manual – Rev S – January 25, 2019
Page 20
13231 Rooster Springs Rd.,
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r0 Deselects all ranges.
r1 Selects the 200 mΩ range.
r2 Selects the 2 Ω range.
r3 Selects the 20 Ω range.
r4 Selects the 200 Ω range.
r5 Selects the 2 KΩ range.
r6 Selects the 20 KΩ range.
r7 Selects the 200 KΩ range.
Data Format
The RS-232C Interface outputs reading data in the following format:
1.2345E+4 The measurement is always in ohms and the number following “E” is the
exponent multiplier. For example, 1.2345E+4 is equal to 12.345 KΩ.
Range Exponent
200 mΩ E-1
2 Ω E+0
20 Ω E+1
200 Ω E+2
2 KΩ E+3
20 KΩ E+4
200 KΩ E+5
Please note that an overrange reading will be indicated by 9.9999E<pn>, where p is the
polarity of the exponent and n is the multiplier of the range. The range exponents are
listed above.
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