ITech IT-M3900B Series User Manual page 195

Ext-Program
Analog Conversion Relationship Introduction
When the analog quantity control function of this series of instrument is used,
the user needs to set the conversion relationship of the analog quantity ex-
pected value based on requirements. The analog quantity values in each chan-
nel all follow the calculation relationship of y=Mx+b. The user needs to set the
MX (slope coefficient) and MB (offset) values in different channels in the analog
quantity menu. For calculation of the analog quantity value. The user can calcu-
late the M and b values based on the analog requirements in accordance with
the formula below.
Taking the Ch1 programming channel as an example, the user needs to convert
the values of Mx and Mb according to the following formulas, and then set the
two values through the front panel keys or SCPI remote commands.
External analog function menu
On / Off Function switch:
•
•
Ch1 Set the parameters of channel 1 (programmed
channel).
Mx
Mb
Ch2 Set the parameters of channel 2 (upper limit
channel).
Mx
Mb
Ch3 Set the parameters of channel 3 (lower limit
channel).
Mx
Mb
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On: Turns on the external analog function.
In this state, the channel parameters cannot
be set.
Off: Turns off the external analog function.
In this state, the channel parameters can be
set.
Indicates the slope factor of channel 1.
Indicates the offset of channel 1.
Indicates the slope factor of channel 2.
Indicates the offset of channel 2.
Indicates the slope factor of channel 3.
Indicates the offset of channel 3.
Basic Operation
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