How to Guide

11
Calibration
Calibrate the Rain Gauge
Ma^kZbg`Zn`^\Zg[^\Zeb[kZm^]mhbfikho^Z\\nkZ\r'
Items Needed:kZbg\hee^\mhk%]blieZrngbm%ieZlmb\\ni%ibg%l\k^p]kbo^k
*' ?bklm%ieZ\^ma^kZbg\hee^\mhkhgZe^o^elnk_Z\^'
+' IeZ\^ma^]blieZrngbm\ehl^[rlhrhn\Zgfhgbmhkbm]nkbg`\Zeb[kZmbhg'
,' FZd^Zibgahe^bgma^[hmmhfh_ZieZlmb\\ni'Ahe]ma^\niho^kma^kZbg
`Zn`^Zg]Ûeebmpbma^qZ\mer*\ni!1hs'"h_pZm^k%Zeehpbg`ma^pZm^kmh
lehper]kbibgmhma^kZbg`Zn`^'Rhnlahne]a^Zkma^bgm^kgZe\nilmbiibg`
and see the water drain through the rain gauge.
-' :_^pl^\hg]lZ_m^k^Z\a\nimbi%ma^]blieZrngbmpbee]blieZrkZbg_Zeebg
ZiikhqbfZm^er)')*
(0.2 mm) or more increments.
.' Ma^\nih_pZm^klahne]mZd^fhk^maZg+)fbgnm^lmh^fimr4Zjnb\d^k
i^kbh]pbeek^lnembgZgbgZ\\nkZm^\Zeb[kZmbhg'MkrmhlbfneZm^ZghkfZe
lm^Z]rkZbg_Zee'Pa^gma^\nibl^fimrh_pZm^k%ma^]blieZrngbm
lahne]k^`blm^k*'/1
(42.67 mm).
Tips
Ma^k^lahne][^g^ZkerZg^jnZegnf[^kh_pZm^k]khil[^mp^^g\nimbil'
B_ghm%ma^gZ]cnlmma^\Zeb[kZmbhgl\k^pl[^g^Zmama^mbiibg`e^o^kngmbe
Zg^jnZegnf[^kh_pZm^k]khilZk^mbiibg`ma^\nil'Ma^g%k^lmZkmma^
\Zeb[kZmbhgikh\^]nk^'
B_rhn]hgma^Zkma^\nilmbiibg`Zg]l^^pZm^k]kbiibg`Zem^kgZm^erhnmh_
^Z\a]kZbg%ma^k^fZr[^Zgblln^pbmama^kZbg`Zn`^hkbmlZ]cnlmf^gm'
Adjustment
B_ma^kZbg`Zn`^]h^lgmk^`blm^k\ehl^mh
*'/1
(42.67 mm) Z_m^kma^\nibl^fimr%
fZd^Zg>JN:EZ]cnlmf^gmmhma^mph
\Zeb[kZmbhgl\k^pl%eh\Zm^][^g^Zmama^
mbiibg`\nil'Mnkgl\k^pl\hngm^k&\eh\dpbl^
mhbg\k^Zl^kZbg_Zee4mnkgl\k^p\eh\dpbl^mh
]^\k^Zl^kZbg_Zee'
MhZ]cnlmma^kZbg_Zeek^Z]bg`[r+
mnkg[hmal\k^pl*(-h_Zmnkg'
MhZ]cnlmma^kZbg_Zeek^Z]bg`[r-
mnkg[hmal\k^pl*(+h_Zmnkg'
MhZ]cnlmma^kZbg_Zeek^Z]bg`[r1
mnkg[hmal\k^pl*_neemnkg'
2 CALIBRATION SCREWS
COLLECTING CUP
Increase
Rainfall
Decrease
Rainfall
Increase
Rainfall
Decrease
Rainfall