MK Products Advanced Color Logic - Manual (Page 36)

Advanced Color Logic Owner’s Manual - Page 29
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).
NOTE
For unusual readings on charts and bar graphs read below for possible explanation:
The “Fit” function for the Charts and Bar graphs, operates by finding
minimum and maximum values of the charts displayed and scales the charts’
ranges to fit the charts for the best view. However, these ranges may not
be correct for the next weld or when “Fit” function is used without any data,
causing maximum zoom to be used. This in turn, may cause a normal (small)
signal noise to appear and be interpreted as a large signal when in fact it
should be ignored.
Therefore, it is recommended to use “Max” or “User” settings before any weld
and only use “Fit” afterwards (if needed) and always check Charts’ ranges.
This will prevent any confusion and incorrect interpretation of the Charts and
Bar graphs.