Hach HIAC 9705 Operator's Manual

Contents

Hach HIAC 9705 Operator's Manual Manual pdf 62 page image

62 of 82 Maintenance Procedures - 9705KSS - March 2006 - Edition 1Operator Manual HIAC5.3 Flushing the 97051) Insert a bottle of deionized (DI) water into the Accu-Swirl or connect the Large VolumeAdapter (LVA) to a container of DI water.2) From the Main Screen, press Flush. Flush as many as times as required by applicableSOPs. Flushing with at least 10 cm3 of clean fluid is recommended.3) Remove water when finished.5.4 Syringe MaintenanceThe Cavro™ syringes provided for the syringe drive perform optimally when these guidelinesare followed:• Do not run syringes for more than a few cycles without liquid in them.• Thoroughly flush the syringe with distilled or deionized water after each use.• If the plunger is removed from the syringe, wipe the plunger with alcohol beforereplacement.• Clean the syringes periodically with a mild detergent. Allow the detergent to sit in thesyringe for 30 minutes or more, then flush the syringe with distilled or deionized water forat least 10 cycles.• If the plunger does not move easily in the barrel, remove the plunger and wet theplunger seal with deionized water.5.5 Sensor Port CleaningThe sensor port should be cleaned whenever large particles clog the cell.1) Remove the clean-out port cap.2) Retrieve a clean cell cleaning brush from the shipping container.3) Slide the brush into the cleaning port, shown in Figure 5-1 until resistance isencountered.CAUTION:Excessive pressure will result in brush and possible cell damage. If the brush will not go intothe cell, pull the brush out and inspect the cleaning tip for damage.