1
TB4 and TB4MM Rain Gages
1. Introduction
The TB4 and TB4MM tipping bucket rain gages funnel rain into a mechanism
that tips when filled to the calibrated level. The TB4 measures in 0.01 in.
increments and the TB4MM measures in 0.2 mm increments. After
measurement, the water drains through two orifices in the base, allowing the
measured water to be collected in a separate container.
Throughout this manual, both models are referred to as the TB4 unless
specified otherwise.
This manual provides information only for CRBasic dataloggers.
It is also compatible with our retired Edlog dataloggers. For Edlog
datalogger support, see an older manual at
www.campbellsci.com/old-manuals
Scientific application engineer for assistance.
2. Precautions
•
section at the front of this
manual.
•
The rain gages are precision instruments. Please handle them with care.
•
The black outer jacket of the cable is Santoprene® rubber. This compound
was chosen for its resistance to temperature extremes, moisture, and UV
degradation. However, this jacket will support combustion in air. It is rated
as slow burning when tested according to U.L. 94 H.B. and will pass
FMVSS302. Local fire codes may preclude its use inside buildings.
3. Initial Inspection
•
Upon receipt of the tipping bucket rain gage, inspect the packaging and
contents for damage. File damage claims with the shipping company.
Immediately check package contents against the shipping documentation
(see Section
(p. 1)
). Contact Campbell Scientific about any
discrepancies.
•
The model number and cable length are printed on a label at the
connection end of the cable. Check this information against the shipping
documents to ensure the expected product and cable length are received.
3.1 Ships With
The rain gages ship with:
(1) Allen wrench from original manufacturer
(1)
ResourceDVD
or instruction manual
NOTE
