Campbell TB4, Product Manual

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TB4, TB4MM, CS700, and CS700H Tipping Bucket Rain Gages
13
2. Remove the leveling screws from the CM240 (FIGURE 7-6 ).
FIGURE 7-6. CM240 Mounting Bracket
3. Place the tipping bucket on the CM240 and line up the holes in the tipping
bucket feet with the holes for the CM240 leveling screws (FIGURE 7-5
and FIGURE 7-6 ).
4. Use the leveling screws to loosely secure the rain gage to the CM240.
5. Place the CM240 and rain gage on the mounting pole.
6. Adjust the three leveling screws on the CM240 bracket to level the gage
(FIGURE 7-6 ). A bullseye level is mounted on the rain gage base to
facilitate leveling (FIGURE 7-5 ).
7. Remove the rubber band and cardboard securing the tipping bucket
assembly. Tip the bucket several times to ensure the tipping mechanism is
moving freely.
8. Replace the housing assembly and tighten the three housing screws to
secure the housing to the base.
7.5 CS700H Power Supply Installation
A CS700H with option –AC includes a Phoenix Contact Power Supply that
must be housed in an environmental enclosure. A DIN rail mounting bracket is
shipped with the CS700H for securing this power supply to an enclosure
backplate. The DIN Rail mounts to the backplate using screws and grommets.
8. Operation
8.1 Sensor Schematic
Black
White
Clear
100 Ω
FIGURE 8-1. TB4, TB4M, and CS700 Schematic
White
Black
Clear
Leveling Screw
Leveling Screw Leveling Screw