Section 5

Maintenance

DANGER

Only qualified personnel should conduct the installation tasks described in this section of the manual

5.1 Cleaning the Sampler

5.1.1 Cleaning the Sampler Housing

The interior and exterior sampler housing may be cleaned with a damp sponge and mild detergent. Do not use abrasive cleaners.

5.1.2 Cleaning the Sample Bottles

Clean the bottles using a brush and water with mild detergent, followed by a fresh water rinse and a diluted water rinse. Glass bottles may also be autoclaved.

5.1.3 Cleaning the Intake Tubing and Pump Tubing

Clean the tubing by pumping water with mild detergent or other cleaning solution through the tubing, using the peristaltic pump in Manual Pump Mode. Press the MANUAL MODE soft key.

5.1.4 No Lubrication Required

The 900 Composite Sampler does not require routine lubrication. Do not lubricate the pump tube with petroleum jelly, silicone grease, oil, or any other lubricant, as this will substantially reduce the life of the pump tube and roller assembly.

5.2Pump Tubing Maintenance

5.3Upgrades, Repairs, General Maintenance

5.4Electrostatic Discharge (ESD) Considerations

5.5Internal Maintenance Items

The following item requires access to the inside of the case for repairs:

Internal desiccant module

RAM memory battery

5.6Removing and Opening the Controller

CAUTION

Always power the unit OFF and then disconnect all cables from the 900 Composite sampler before removing the controller.

To remove the controller from the controller center section:

1.Turn the unit off by pressing the OFF key.

2.Disconnect and remove all cables to the controller housing, including the distributor/full bottle shutoff cable.

3.Disconnect all tubing.

 

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8544Maintenance.fm

Maintenance

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Hach 900 manual Cleaning the Sampler, Removing and Opening the Controller