Air cooler is a device with ambient air as a cooling medium outside the transverse wing tube for cooling or condensing the high temperature process fluid, & quot; Air cooler & quot;, also known as & quot; Air cooling heat exchanger & quot;Air cooler, also known as fin fan, is commonly used instead of water cooled shell-tube heat exchanger cooling medium.
Teencher Inspection team consists of professional quality control and international trade experts, each member with extensive inspection experience and very strong sense of service. our inspection can help you to reduce logistics costs, return risk, complaints, compensation and potential brand reputation due to quality problems.
1.Inspection Environment and Requirement
-Requirement for place of inspection:Light from a power of at least 500 Lux.
-Perspective:The products must be tested by every angle.
-Distance of viewing:In doubts, check the products from a distance of 30 cm. If it is not visible, it is no defect. View the items by various angles.2.Visual NonConformities Standard
Visual nonconformities as stated below are typical defects during production and must be handled either by means of suitable measuring or comparison practices. A practical method is to compare defects either against the specification guide or against provided samples.
-Not permitted any sharp point/sharp edge on accessories.
-Not permitted infestation of live insect.
-Not permitted blood mark
-Not permitted mildew products.-Not permitted heavily odor.
-Not permitted missing any parts or accessories etc.
-Not permitted crack mark,chipped edge,burr, dent mark,scratch mark etc.
-Not permitted any rust mark.
-Not permitted wrong printing,missing printing etc.
-Not permitted unreasonable gap
-Not permitted burn mark,water spot,color stain,oil stain,dirty, impurity mark etc.
3.Field Test & Measurement
-Color shade check
-Function check
-Smell check
-High voltage check
-Power consumption check
-Product dimension check
-Product weight check
-Barcode readability check
-Capacity check
-Rub test
-Tape test
-Stability check(10°, unfavorable position, no over turn)
-Noise level check
-Power cord pull test
-Power on check
-Fan speed check
-Motor speed check
-Product performance check
-Water leakage check
-Internal check
-Quantity per carton check
-Carton dimension check
-Carton gross weight check
-Carton drop test