LME 3-month copper weaker on follow-through long liquidation after overnight slide, must hold current range to avoid collapse, says Hong Kong-based trader. Adds, sentiment likely strong enough to prevent correction, buying on dips should help copper consolidate above $7,800-$7,900 band before turning higher. Notes copper's sharp rally last week to high of $8,335/ton was a "good run" but copper's "a little bit tired up at those numbers."