Calibration Procedures
7-5
Short Channel R input terminals.
Press LOAD and adjust VRA11 on board L till the module’s display is as follows:
LoFFS
<<
−
offset calibration of low range voltage in channel R
00XX
<<
−
xx:25 to 40(hex)
Press LOAD , wait two seconds, and check the module’s display:
HoFFS
<<
−
offset calibration of high range voltage in channel R
00XX
<<
−
xx:25 to 40(hex)
Press LOAD , wait two seconds, and check the module’s display:
LoFFS
<<
−
offset calibration of low range current in channel R
00XX
<<
−
xx:25 to 40(hex)
Press LOAD , wait two seconds, and check the module’s display:
HoFFS
<<
−
offset calibration of high range current in channel R
00XX
<<
−
xx:25 to 40(hex)
Press LOAD to let the module go to normal display mode.
Remove input terminal’s short circuit.
Voltage measurement adjustment (channel L):
Set
channel L of the load module to CRH mode.
Apply DC source to the input terminals of channel L, and set the DC source to 80V and
current limit 1A. Connect DMM to input terminals of channel L. Adjust VRB9 on board L
until the display of voltage in channel L = DMM (V) reading
±
0.01V.
Current offset adjustment (channel L):
Set the DC source to 5V/200mA and current shunt range to 20mA.
Set channel L to CCL mode and program the current to 2mA.
Adjust VRB2 on board L until shunt current = 1.95 to 2.05mA.
Set channel L to CCH mode and program the current to 20mA.
Adjust VRB6 on board L until shunt current = 19.8 to 20.2mA.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com