ITech IT-M3900C Series User Manual page 172

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.
Ch1
Ch2
Ch3
The principle of parameter setting of Ch1 and Ch2 and Ch3 is the same, so
the description will not be repeated.
Copyright © Itech Electronic Co., Ltd.
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Off: Turns off the external analog function.
In this state, the channel parameters can be
set.
Set the parameters of channel 1 (programmed
channel).
Mx Indicates the slope factor of channel 1.
Mb Indicates the offset of channel 1.
Set the parameters of channel 2 (upper limit
channel).
Mx Indicates the slope factor of channel 2.
Mb Indicates the offset of channel 2.
Set the parameters of channel 3 (lower limit
channel).
Mx Indicates the slope factor of channel 3.
Mb Indicates the offset of channel 3.
Basic Operation
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