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Functions and Features

2. Use left and right keys or rotate the knob to select Trig and press [Enter]

key to make the parameter in modification.

3. Rotate the knob to select In or Out and press [Enter] key to confirm.

4.2.6 Select Trigger Source(Trig Source)

This menu item is used to select the trigger source.

IT-M3200 series power supply supports the following trigger sources:

• Keypad: Select the front panel [Shift]+[Esc] (Trigger) button as the trigger

source;

• Bus: Select the remote interface command as the trigger source, such as

the *TRG command;

• Ext: Select the rear panel trigger signal interface TRIG± (IN status) as the

trigger source. Please refer to 4.2.5 Set the TRIG± Interface Status (Trig) for

detailed information about TRIG± interface status settings.

The procedures to set the menu item are as follows.

1. Press [Shift]+[Save] (System) to enter into the system menu interface.

2. Use left and right keys or rotate the knob to select Trig Source and press

[Enter] key to make the parameter in modification.

3. Rotate the knob to adjust the parameter.

4. After setting, press [Enter] key to confirm.

4.2.7 Set the Bleeder State (Bleeder)

This menu item is used to set the status of the bleeder circuit (Bleeder). On and

Off apply to the following test scenarios:

• On (default): For test scenarios other than battery charging tests. After the

Bleeder is turned on, when the test is finished and the output is turned off,

the voltage can be dropped quickly.

• Off: For battery charging test scenarios. Since some devices inside the in-

strument can absorb power, when the test is finished and the battery is still

connected to the test circuit, these devices will still discharge the battery

even if the output is turned off or the instrument is powered off. Therefore,

before connecting the battery to the test circuit, set Bleeder to Off to discon-

nect the bleeder circuit to avoid this problem.

Turning off the Bleeder can omit the diode which is used to prevent re-

verse current during battery testing.

ITech IT-M3140 Series User Manual

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