ITech IT-M3900B Series User Manual page 201

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 mode
all follow the calculation relationship of y=Mx+b. The user needs to set the M
(slope coefficient) and b (offset) values in different modes in the analog quantity
menu. For calculation of the analog quantity value. The user can calculate the
M and b values based on the analog requirements in accordance with the for-
mula below.
External analog function menu
On / Off Function switch:
•
•
CV Calculation parameter setting of the setting val-
ue in CV mode.
M
b
CC Calculation parameter setting of the setting val-
ue in CC mode.
M
b
CP Calculation parameter setting of the setting val-
ue in CP mode.
M
b
CR Calculation parameter setting of the setting val-
ue in CR mode.
M
b
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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.
Slope coefficient set by voltage.
Offset set by voltage.
Slope coefficient set by current.
Offset set by current.
Slope coefficient set by power.
Offset set by power.
Slope coefficient set by resistance.
Offset set by resistance.
Basic Operation
189