Или написать в техподдержку нечто вроде:

"
Hello !
Sorry for my English.
Please, help me to tune PostGas time in my welding machine XYZ_zxy.
Now this time is near 8 sec, and this is extremely long for me.
Can I reduce this time to 0 sec. (for example) ?
Best regards, Ivanov Ivan Ivanovich
"