Voltage Divider Adjustment - ESAB ESP-150 Manual De Instrucciones

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Voltage Divider adjustment

It may be necessary to adjust the Voltage Divider or VDR to match the particular height control system . There are
two default settings for the PowerCut models as shipped from the factory:
• STANDARD UNITS (Non-CE): 750 ohms (21:1)
If the height control system does not match the factory default setting, matching can be accomplished by ad-
justing the VDR potentiometer .
1 . Place ohm meter leads between W2 (arc voltage) & W3 (work) . Adjust R1 to achieve the desired divide
ratio for the particular height control system used . For example:
•
•
2 . If desired, additional minor adjustments of the VDR potentiometer may be made . Any adjustments
should be performed by a qualified technician .
MaKe SuRe POWeR SWITch ON cONSOle IS IN Off POSITION aND
PRIMaRY INPuT POWeR IS De-eNeRgIZeD.
16:1 ratio 1000 ohms
18:1 ratio 882 ohms
• CE UNITS (Europe): 789 ohms (20:1)
• 21:1 ratio 750 ohms
• 20:1 ratio 789 ohms
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INSTallIeRuNg
Potentiometer