Functions and Characteristics 
  Copyright ©  Itech Electronic Co., Ltd.  21 
Every time you power up the unit, the output parameters is always 0V, 0A. 
If select KEEP, means to remember last shutdown parameters. The next time 
you power on the unit, the output parameters are kept as the same with last 
shutdown setup. 
Factory default set is KEEP. 
On/Off state after power up (>P-OUT)     
P-OUT item is used to set the output state of power supply after power up. 
If  select  KEEP,  means  to  remain  the  output  state  of  last  shutdown.  In  this 
selection if you power off the unit in output on state, then the next time you 
power up the unit, the output is kept in on state. 
If select OFF, means every time you power up the unit, it defaults in output OFF 
state. 
Factory default set is OFF. 
Communication set (>COMM) 
IT6800A/B  series  power  supply  has  built-in  standard  RS232/USB 
communication interface.>COMM item is used to set the communication mode 
(by RS232 or USB). 
It  includes  six  kinds  of  baudrate  set  in  RS232  communication  mode 
(4800,9600,19200,38400,57600,115.2K).When operating the power supply in 
remote mode, make sure that you configure identical baud rate settings for the 
power supply and the computer. 
KEY Sound Set (>BEEP) 
>BEEP item is used to set the key sound. 
If select On, means enable the key sound. If select Off, means disable the key 
sound. 
Factory default set is ON. 
KNOB State (>KNOB) 
>KONB item is used to set the state of KONB. 
If select ON, means unlock the rotary knob. You can use knob to scroll menu or 
set a value. 
If select LOCK, means disable rotary knob function. 
Factory default set is ON. 
Trigger Mode (>TRIG) 
IT6800A/B series power supply supports two different trigger modes (MANU 
and BUS). 
If  select MANU,  press  (Shift) +  (Trigger)  can generate a  trigger 
signal. 
If select BUS, then sending command *TRIG can generate a trigger signal. 
Factory default set is MANU. 
Group set (MEM GROUP) 
IT6800A/B series power supply enables customer to store up to 9*8 groups of 
different operating parameters in a non-volatile memory for quick recall.