56-101-01175 Revision H Page | 76CHAPTER 6: MAINTENANCE1. GENERALA. The manufacturer of this equipment does not recommend the user to attempt anymaintenance or repair. In case of malfunction, contact the manufacturer to obtainthe list of approved repair facilities worldwide. This will ensure that this equipmentis serviced using proper procedures and certified instrument.2. PREVENTATIVEA. The user should visually inspect the unit prior to each use to look for signs ofapparent damage.B. Inspect the ports, hoses and aircraft adapters for the presence of moisture or anytype of foreign matter.C. With the DPS1000 disconnected from the hose and adapter assemblies, power theunit on and observe the initialization routine to make sure there are no apparentissues reported.3. TROUBLESHOOTINGA. If the unit displays an error code during use, please record the error code andcontact Barfield or its representative for further instructions before proceeding.B. If the unit seems to be malfunctioning but displays no error code, then return theunit safely to ground level. Cycle the power to see if the problem clears, makingnotes of any issues discovered during the Power On Self-Test routines.4. CALIBRATIONA. The DPS1000 calibration interval is once per annum (12 months).B. Please see the list of approved repair facilities under Maintenance and RepairInformation on Page v of this document.CAUTION: Recertification by a calibration/repair shop not possessing the necessarytechnical knowledge, documentation, special test equipment, tooling andstandards will adversely affect the accuracy/capability of the DPS1000.
