ITech IT-M3900D Series User Manual page 113

2. Calculate the Mx and Mb under the Ch1, Ch2 menus according to the above
formulas. The sample data used in this manual is shown in the table below.
Pins Input
Voltage
8 V = 0
in1
V = 5
in2
9 V = 0
in1
V = 10
in2
3. Set MX and MB of the corresponding pins.
a. Press the composite keys [Shift]+[P-set] (System) on the front panel to
enter the system menu.
b. Use knob key to select Ext-Program and press [Enter].
c. According to step 2, set Mx and Mb of the corresponding pins.
d. Set the Ext-Program→On / Off to On to turn on the analog function.
4. Adjust the output of DC Power Supply 1 from 0V to 5V, and adjust the out-
put of DC Power Supply 2 from 0V to 10V .
The actual output voltage and current of the instrument will change accord-
ing to the following rules:
Copyright © Itech Electronic Co., Ltd.
Output Volt- Mx
age / Current
V = 0 10-
out1
0
V = 500
out2
I = 0 3
out1
I = 30
out2
Basic Operation
Mb Description
0 By inputting a volt-
age of 0V to 5V to
pin 8, the actual out-
put voltage Vset is
controlled from 0 to
500V.
0 By inputting a volt-
age of 0V to 10V to
pin 9, the actual out-
put current upper
limit Ilim is con-
trolled from 0 to
30A.
101