help me please for delta pulse

[ouiarabe]

hi
help me please my delta pulse is damaged, after another test coil it can not detect gold and aliminum but it detects iron

[kt315]

Delta Pulse is not working on low MAIN DELAY because a deeper. decrease MAIN DELAY and it will detect a gold. good luck.

[ouiarabe]

Delta Pulse is not working on low MAIN DELAY because a deeper. decrease MAIN DELAY and it will detect a gold. good luck.

thank you sir kt315
before trying the new coil my pulse delta works perfectly and it detects a small gold ring.
how to adjust the MAIN DELAY