CHAPTER 3: OPERATING INSTRUCTIONS
PHASEMASTER™ 6 DIRECT ENERGY WELDING CONTROL
3-20
990-083
Figure 3-3. Test Condition A.
COOL
3.8V RMS
HEAT
VOLTAGE
COOL
HEAT
AVERAGE
TEMP.
TEMP.
(a)
(b)
Test Condition A: (a) Low average power is provided with a short burst of current which results in (b)
large temperature deviations around the average temperature.
HEAT
COOL
VOLTAGE
38VRMS
Figure 3-4. Test Condition B.
COOL
2.9V RMS
HEAT
COOL
HEAT
AVERAGE
TEMP.
TEMP.
(a)
(b)
Test Condition B: (a) Equivalent power is obtained with lower voltage for current which flows for a longer
time which results in (b) smaller temperature deviations around the average temperature.
COOL
HEAT
29VRM
