Handheld Optical Multimeter
SN Diagnosis
Solution
1
Output light is found unsteady
Please recharge the battery
2
The terminal of adapter is
dirty
Clean it gently with alcohol
3
The output optical power is
unsteady after startup
Pre-warm the device for 15 minutes
before using it.
9. Warranty
No parts of the product can be repaired by user himself.
Warranty period: 18 months since the date of shipment. If any product defect within the above said
period, we will repair or replace the defective product, however, in no events we will bear resonsibilities
in excess of the product’s sales price.
If any fault occurs during usage, user can first solve them according to above trouble-shooting
instructions, however, if such efforts fail, the user shall not open the cabinet of the product by himself,
he should contact our market department or local dealers.
For any quality problem arising of production defect, the manufacturer will repair or replace the
defective product free of charge, however, any damage caused by improper-operation or good product
will not be covered by the above warranty.
Notwithstanding the foregoing terms, any problem/fault caused for the following reasons are not
included warranty.
The product has been repaired or modified without the authorization of the manufacturer
The problem or fault arising of improper use, negligence or incidence.
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