Campbell TB4, Инструкция по эксплуатации

Страница: 18 / 28

TB4 and TB4MM Tipping Bucket Rain Gages
10
should vary from infinite (switch open) when the bucket is tipped, to less
than an ohm when the bucket is balanced.
8.2 Maintenance
During each site visit, remove any debris, insects, sediment, etc. from the
collection funnel, debris screen, siphoning mechanism, or tipping bucket
assembly.
Verify the tipping bucket assembly moves freely, and that the datalogger
records each bucket tip.
8.2.1 Dismantling for Cleaning
The following items should be checked regularly for cleanliness:
•
Filter (FIGURE 8-3 )
•
Siphon (FIGURE 8-3 )
•
Tipping bucket assembly (FIGURE 8-1 )
•
Top surface of adjusting screws
•
Housing locking screws; lightly lubricate after cleaning (see FIGURE
8-1 )
•
All insect screens
To access the above components, dismantle the TB4 using the following
procedure:
1. Remove the housing assembly from the base by loosening the three
locking screws and lifting the housing upward.
FIGURE 8-1. Components of TB4 Base
Reed Switch Assembly Tipping Bucket Assembly
Bullseye Level
Housing Screw