Sets or returns the ACW LOW SET current value 
in milliamps. The LOW SET value must be less 
than the HI SET value.  The test must first be in 
ACW mode before this command can be used. 
 
The LOW SET range must use the HI SET range. If 
all the digits in the LOW SET range are outside the 
HI SET range, an Err message will be produced. 
All digits outside the HI SET range are ignored 
and will not be used. 
 
For example: 
HI SET value: 30.00 
LOW SET value: 30.01  error 
In certain applications, it is suggested to enable 
Filter On, which indicates the activation of 
software judgment function that judges values by 
interval of every 100ms in case of instantaneous 
misjudgment on distorted waveforms.