Teledyne 6600 manual Troubleshooting Section, Lamp Refuses to Light

Part III Model 6600

NOTE: The phototube envelope is very thin quartz for optimum UV trans mission and therefore extremely fragile. Extreme care must be taken, when the signal cable is disconnected from its top connector to avoid a leak.

8.0TROUBLESHOOTING SECTION

8.1The Lamp Refuses to Light

Possible Causes Remedy

1.The lamp has failed due to long service.1. Replace the lamp as per Section 7.10.

2.The power supply has failed. Remove the power supply from its mount, located in the source module and replace with a new unit.

8.2Water Delivery Problems

8.2.1The Water Refuses to Flow Through the Tubing

This can happens during start-up, after installation of new tubing or when the system is left dry for a long period of time particularly in gravity fed systems. The cause may be air trapped in the tubing. The small driving force used to make the water flow is not able to overcome the resistance offered by an air bubble trapped inside a dry tube.

Remedy: Force the affected tube to become wet, by opening up the connector on its down stream side and point the tube downwards to generate a siphon effect and let the water flow freely for awhile.

The tube sections most often suffering of this phenomena are the tube connection between the output of the homogenizer and the input of the deaerator and the tube connection between the zero filter output to the solenoid valve and from the solenoid valve to the input of the fine filter. The deaerator drain tube leading to the solenoid valve F1 and SV3 must always have a downward slope.

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