REMOTE CONTROL 
247 
 
Sets or returns the GB reference value in mΩ. The 
test must first be in GB mode before this command 
can be used. 
Beware that when ISET x (HIEST + REF) is greater 
than 7.2V, an “Err” message will be shown on display. 
And an “GBV > 7.2V” message will be returned after 
using the query command “SYSTem:ERRor ?” in 
remote control. 
MANU:GB:REF <NR2> 
MANU:GB:REF? 
Parameter/ 
Return parameter 
MANU:GB:REF 100 
Sets the GB reference to 100 mΩ. 
 
Performs the zero check function.  The test must 
first be in GB mode and in the Ready Status before 
this command can be used. 
 
See page 71 for details on the ZERO function. 
MANU:GB:ZERocheck {ON|OFF} 
MANU:GB:ZERocheck? 
Parameter/ 
Return parameter 
Zero function is not active. 
MANU:GB:ZER OFF 
Activates the GB ZERO function.