Keysight Technologies 3458A Guide D'utilisation page 286

6 Command Reference
Example
OUTPUT 722;"LOCK ON" !DISABLES THE KEYBOARD
MATH
The MATH command enables or disables real-time math operations.
Syntax
MATH [operation_a][,operation_b]
operation
The operation parameter choices are:
operation
parameter
OFF
CONT
CTHRM
DB
DBM
FILTER
FTHRM
NULL
PERC
PFAIL
286
Numeric
Description
equiv.
0 Disables all enabled real-time math operations
Enables the previous math operation. To resume two math
1
operations, send MATH CONT,CONT
Result = temperature (Celsius) of a 5 kW thermistor (40653B).
3
Function must be OHM or OHMF (10 kW range or higher).
Result = 20 x Log
4
initialized to 1, yielding dBV.
Result =10 x log
5
be ACV, DCV, or ACDCV.
Result = output of exponentially weighted digital low-pass filter.
6
Response is set by DEGREE register.
Result = temperature (Fahrenheit) of a 5 kW thermistor (40653B).
8
Function must be OHM or OHMF (10 kW range or higher).
Result = reading-OFFSET register. The OFFSET register is set to
9
first reading—after that you can change it.
10 Result = ((reading - PERC register) / PERC register x 100.
11 Reading vs. MAX and MIN registers.
(reading/REF register). The REF register is
10
2
(reading /RES register/1 mW). Function must
10
Keysight 3458A User's Guide