ITech IT8800 Series - 3.8 Triggering function; Operation steps

Function and Features
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Average Count=2^(2~16) Set of average count
CR-LED
CR LED MODE Analog LED lamp function (under CR mode)
On
Open function (Under CR mode,
press [Shift] + [CV]
to set Vd
value)
Off Stop function
Remote-Sense
REMOTE SENSE STATE
Remote sense compensation
measurement
On
Start remote sense
compensation function
Off
Stop remote sense
compensation function
Ext-Program
EXTNAL PROGRAM External analog quantity function
On
Start external 0-10V
analog quantity control
function
Off
Stop external 0-10V
analog quantity control
function
3.8 Triggering function
Triggering function is necessary to operate dynamic pulse output and list output.
There are five triggering methods to synchronously trigger the tested
instrument.
Optional triggering sources of triggering function of electronic load comprise:
 Key ([Trig] key) trigger: when key trigger is valid, press [Trig] key and the
load will trigger an operation.
 External trigger signal (TTL): TRIG on the rear board is the triggering
input terminal. When external trigger signal method is effective, after
applying a low pulse (> 10 us), the load will trigger an operation.
 Bus trigger: when the bus trigger is valid, after the load receives a trigger
command (GET or *TRG) from GPIB port, the load will trigger an operation.
 Timing trigger: when the timing trigger is valid, the load will automatically
trigger an operation at intervals.
 Trigger holding: when trigger holding is valid, only when the load receives
trigger command (TRIG: IMM), the load will trigger an operation.
Select the triggering sources as follows:
Operation steps
1. Press [Shift] + 5 (system) to enter system menu setting screen.
Initialize Power-ON Buzzer
2. Press Left/Right key and move to Trigger. Press [Enter] to enter triggering
source selection screen.
Manual (Def) External Hold
3. Press Left/Right key to select trigger method. Press [Enter] to complete
setting.