Specifications

56
TEAM Climate Monitoring Protocol 3.1
The TB4 requires very little maintenance and should work well as long as the tipping mechanism is not
disturbed. However, the precipitation gauge should be calibrated annually to ensure accurate rainfall
measurements. Record the results in the
Sensor Installation/Calibration Form . The manufacturer
recommends the following process:
1. D
D
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C
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a
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.
.
Disconnect the pulse cable coming from the sensor into the
datalogger (into the P1 slot).
2. R
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.
.
Remove the cover from the gauge by loosening the screws on the sides.
3. L
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g
g
a
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.
.
Check the bubble level to ensure the gauge is perfectly leveled. If not,
adjust the nuts on the mounting bracket to level the unit.
4. P
P
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u
u
r
r
w
w
a
a
t
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r
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.
.
VERY Slowly pour through 314 cc of water through the inner funnel over a 15-
minute period (this is equivalent to 10 mm of rain). Have a second person count the number of
tips as the water is poured. The gauge should have tipped 39 times.
5
5
.
.
R
R
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c
c
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c
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c
c
a
a
b
b
l
l
e
e
.
.
Reconnect the cable coming from the tupping bucket into the P1 slot
in the datalogger (DON’T FORGET THIS STEP, OTHERWISE YOUR BUCKET WILL NOT
WORK).
6. R
R
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c
c
o
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r
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d
d
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a
t
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o
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n
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v
v
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n
n
t
t
.
.
Fill in the time, date and number of tips in the Sensor
Calibration
form. If the gauge did not tip 39 times, there is a problem with the tipping
mechanism. If necessary, send it back to the manufacturer for a recalibration and complete the
Sensor Calibration Metadata Form (Appendix A.5. Sensor Calibration Metadata Form). Use
readings from the manual precipitation gauge until the tipping bucket is recalibrated.
7. S
S
u
u
b
b
m
m
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t
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T
T
E
E
A
A
M
M
p
p
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r
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t
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a
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.
.
Every time the tipping gauge is calibrated
submit the information on the
Sensor Installation/Calibration Form to the TEAM portal. See
Section 6.5.4 for instructions on transcribing the information from the
Sensor
Installation/Calibration
form . If the tipping bucket needed to be sent out for calibration, the
Sensor Calibration Metadata Form can also be submitted using the instructions in Section
6.5.4.
6.5.3 Solar radiation (LI 200X)
E
E
q
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/
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:
:
 Pen/Pencil
 Small Allen wrench
 Replacement Solar Radiation sensor
 Blank
Sensor Installation/Calibration Form
 Blank
Sensor Calibration Metadata Form
The Licor LI 200X should be sent out for calibration every 2 years. Send out one of the duplicates for
calibration at the end of the second year of operation to keep two sensors always operating in
alternate schedules. Follow the instructions in the beginning of Section 6.5.1 for how to set up the
alternating calibration schedule (also see Figure 24 to get an idea of how the calibration schedule
should work). After the first year of operation, only remove sensors for calibration every two years or if
they become damaged. Follow the steps below to replace the solar radiation sensor.