Chapter 16 409
GPIB Command Reference
REFV
16. GPIB
Command Reference
( S - Z , :PROG )
REFV
Syntax REFV <numeric>[OHM|DEG|RAD|SIE|H|F|PCT]
REFV?
Description Sets the value indicating the reference line in the linear Y axis format, or the full scale
value in the polar chart format. To set the value indicating the reference line in the complex
plane format, use the
“REFX” command on page 410 and “REFY” command on page 410.
Parameters
If the specified parameter is out of the allowable setting range, the minimum value (if the
lower limit of the range is not reached) or the maximum value (if the upper limit of the
range is exceeded) is set.
Query response {numeric}<newline><^END>
Corresponding
key
[Scale Ref] - REFERENCE VALUE
<numeric>
Description Value indicated by the reference line or full scale
Range For the linear Y axis format:
Varies depending on the measurement parameter as follows:
For |Z|, R, X: -1E12 to 1E12
For other than |Z|, R, X: -1E9 to 1E9
For polar chart format:
10E-15 to 1E9
Initial value For the linear Y axis format:
Varies depending on the measurement parameter as follows:
For |Z|, R, X, Rs, Rp: 500E3
For θ: 0
For |Y|, G, B, D: 500E-3
For Cs, Cp: 500E-6
For Ls, Lp: 5
For Q: 500
For polar chart format:
1
Unit Varies depending on the measurement parameter (refer to the
explanation of unit in
“SCAL” on page 423).
Resolution
1E-15
*1
*1.This is the minimum value (when the set value is small). The resolu-
tion becomes larger as the set value becomes larger.
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