minutes. Hourly recordings may be deleted for any 

 period by removing the knurled screws from the 

 programmer dial . 



,m) Gage is now in operation. 



c. Maintenance 



Recorder chart and ink must be replaced in accordance with 

 the recording program established. 



The epoxy gage sections, gage holder, and brackets will require 

 periodic cleaning to remove sea growth caused by local conditions. 

 Repainting of the gage holder and gage sections with anti-fouling paint 

 will extend the periods of operation between cleaning, and retard marine 

 growth. DO NOT PAINT IHE GROUND ROD OR THE METAL GAGE TIPS. 



Recorders should be serviced as outlined in the manufacturer's 

 manuals. 



Periodic checking of the gage calibration is desirable. 



62 



