Slave V1.01
 Added the switching of Temp function in dual display.
 Added the hardware overload detection of ACV function.

Slave V1.10
Add the AC input will be forced to discharge under DCV function.
Add the EMF Function in OHM function(Reserve).

Slave V1.11
Fixed the problem that InputR cannot switch correctly in DCV Auto Zero on and Speed > 100/s.
Fixed the problem that DC Gain Calibration will occasionally cause error.
Fixed the problem that the range upper and lower gears will keep jumping in above 100k and AUTO Range of OHM.

Slave V1.12
 Fixed the problem that AC OVP detection and judgment mechanism.

Slave V1.13
 Modified the Gain of DC 100uA Range.

Slave V1.14
Added current Hi/Lo judgment.

Slave V1.15
In ACV function, K603 (K3) switch to reset to avoid ACV interference to S- .