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12 Troubleshooting
Problem
3x beeps then power
OFF
Display shows: "ErrE"
Large idle value after per-
forming DC zero adjust-
ment
13 Cleaning
Risk of electric shock! Disconnect the product from any input signals
and switch the power OFF before cleaning.
Important:
– Do not use aggressive cleaning agents, rubbing alcohol or other chemical
solutions. They damage the housing and can cause the product to malfunc-
tion.
– Do not immerse the product in water.
■
Clean the product with a clean, lint-free, antistatic cloth. Lightly moisten if
needed.
■
Check to make sure the clamp mating surface is clean. Trapped dirt or debris
can result in measurement errors.
Possible cause
Batteries are low
System error
Remanence (residual
magnetism of the meas-
uring coil)
Suggested solution
See section:
Replacing
batteries [} 47]
Restart the product
Briefly switch to the AC
measuring function (A)
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