MK Products Advanced Color Logic Rev.C User Manual
Page 45
Advanced Color Logic Owner’s Manual - Page 40
CAUTION
REMOVE ALL TEST EQUIPMENT FROM THE
ARC VOLTAGE SIDE OF THE SHUNT BOX PRIOR
TO STARTING THE CURRENT CALIBRATION.
Once connected, with the ACL in WELD Mode, press [START/STOP] on the
HHC. The ANA_CAL procedure will initiate and establish an arc within the
tungsten arc gap, then enter Level 1 and the rotor will start rotating.
CAUTION
PROLONGED EXPOSURE TO THE WELDING ARC
MAY RESULT IN INJURY TO THE EYES AND/OR SKIN.
PROTECT ALL PERSONNEL FROM ALL ARC FLASHES.
Unnecessary extended time in each level of calibration,
or performing repeated calibrations will cause all fixturing
(torch, block and cables) to become very hot.
EXPOSURE TO THESE VERY HOT ITEMS
WILL RESULT IN INJURY TO THE SKIN.
USE CAUTION WHEN HANDLING VERY HOT FIXTURING.
Press [NEXT LEVEL/GAS] on the HHC to jump to the next level, thus
changing the current to the next AMP value. This will occur whenever the
[NEXT LEVEL/GAS] button is pressed.
At each DEMAND AMPS (which is that AMPS value in the ANA_CAL
procedure), adjust the ACTUAL AMPS of the welding arc (displayed on the
DMM (mV x 4 = ACTUAL AMPS)) by pressing the UP ARROW or DOWN
ARROW on the HHC, until the ACTUAL AMPS equals that of the DEMAND
AMPS. Each button press is equal to 1/10 A output adjustment.
Once the ACTUAL AMPS are set equal to the DEMAND AMPS, the
FEEDBACK AMPS (displayed just to the right of the AMPS Bar Graph
at the bottom of the monitor screen) must be adjusted to equal that of
the ACTUAL AMPS value. Pressing the % CURRENT SCALE UP or %
CURRENT SCALE DOWN on the HHC accomplishes this. Each button
press is equal to 1/10 A feedback adjustment.
NOTE
Once all the necessary measurements and assessments
have been made for each level, it is HIGHLY ADVISABLE
to change levels and not remain in any one level
for the entire 300.0 seconds.
Record each of the final display values on the data sheet.
Verify that each of the recorded values = DEMAND AMPS ± 2.0 Amps.
Press [START/STOP] on the HHC when complete. Repeat if necessary (read
CAUTION statement for Current Calibration).
Section D
(Cont.)