del-0776a4 specification for approval =============================================== customer description dc fan part no. rev. delta model no. PFB0812DHE-T500 rev. 00 sample issue no. sample issue date. oct 14, 09 please send one copy of this specification back after you signed approval for produc- tion pre-arrangement. approved by : _____________________________ date : _____________________________ delta electronics (thailand) public company limited. 111 moo 9 wellgrow industrial estate bangna-trad road, tambon bangwua, amphur bangpakong, chachoengsao 24180 thailand tel. +66-(0)-38522455, fax. +66-(0)-38522477
descriptions : 1. delta will not guarantee th e performance of the pr oducts if the applic ation condition falls outside the parameters set forth in the specification. 2. a written request should be submitted to delta prior to a pproval if deviation from this specification is required. 3. please exercise caution when handling fans. damage may be ca used when pressure is applied to the impeller, if the fans are handled by the lead wires, or if the fans are hard-dropped to the production floor. 4. except as pertains to some special designs, ther e is no guarantee that th e products will be free from any such safety proble ms or failures as caused by the in troduction of powder, droplets of water or encroachmen t of insect into the hub. 5. the above-mentioned conditio ns are representative of some unique examples and viewed as the first point of referenc e prior to all other information. 6. it is very important to es tablish the correct polarity before connecting the fan to the power source. positive (+) and negative (-). damage may be ca used to the fans if connection is with reverse polarity, as there is no foolproof method to protect against such error. 7. delta fans are not suitable where any corrosive fluids are in troduced to their environment. 8. please ensure all fans are stored according to the storage te mperature limits specified. do not store fans in a high humidity environment. we highly recommend performance testing is conducted befo re shipping, if the fans have been stor ed over 6 months. 9. not all fans are provided with the lock rotor protection feature. if you impair the rotation of the impeller fo r the fans that do not have this function , the performance of those fans will lead to failure. 10. please be cautious when mo unting the fan. incorrect moun ting of fans may cause excess resonance, vibrat ion and subsequent noise. 11. it is important to consider sa fety when testing the fans. a suit able fan guard should be fitted to the fan to guard against any potent ial for personal injury. 12. except where specifically stated , all tests are carried out at relative (ambient) temperature and humidity conditions of 25 o c, 65%. the test value is on ly for fan perf ormance itself. 13. be certain to connect an ?over 4.7 f? capacitor to the fan exte rnally when the application calls for using multiple fans in parallel, to avoid any unstable power. ?
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