Campbell CNR1 User manual
INSTRUCTION MANUAL
July 2013
Copyright © 2008 - 2013
Campbell Scientific (Canada)Corp.
CNR1 Net Radiometer
PLEASE READ FIRST
About this manual
Please note that this manual was originally produced by Campbell Scientific Inc. (CSI) primarily
for the US market. Some spellings, weights and measures may reflect this origin.
Some useful conversion factors:
Area: 1 in2(square inch) = 645 mm2
Length: 1 in. (inch) = 25.4 mm
1 ft (foot) = 304.8 mm
1 yard = 0.914 m
1 mile = 1.609 km
Mass: 1 oz. (ounce) = 28.35 g
1 lb (pound weight) = 0.454 kg
Pressure: 1 psi (lb/in2) = 68.95 mb
Volume: 1 US gallon = 3.785 litres
In addition, part ordering numbers may vary. For example, the CABLE5CBL is a CSI part
number and known as a FIN5COND at Campbell Scientific Canada (CSC). CSC Technical
Support will be pleased to assist with any questions.
i
CNR1 Table of Contents
1. General Description.....................................................1
2. Sensor Specifications .................................................1
3,22"%! $,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2
3,34"%! $,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,3
3,44"%! $,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,4
3. Installation ....................................................................3
4. Using the CNR1 in the Four Separate
Components Mode (4SCM)....................................5
5,2$&# !#%! (%%4,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,6
5,3$&# # ##%! (%%4,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,6
5,4$&# %2.$"#%&#(%%%-211,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,7
5,5&%! !%!!#!#%! ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,7
5,6&%! !%%!#%! ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,7
5,7&%! !%% ##%! /%! -'0,,,,,,,,,,,,,,,,,,,8
5,8&%! !%%/%!%0%! ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,8
5. Wiring ............................................................................7
6. Datalogger Programming ..........................................10
7,2#%! %!#,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,22
7,3)"#!#$,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,22
7,3,2)"2+34#!#$ # % $,,,,,,,,,,22
7,3,3)"3+34#!#$ - $,,,,,,26
7,3,4)"4+2111$ # % $,,,,,,,,,,,,,,,,,,,,,,,,,,,28
7,3,5)"5+6111$ # % $(no 4WPB100)2:
7. Calibration ..................................................................22
8. Troubleshooting.........................................................22
9,2$% %4,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,33
9,3$% !%4,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,34
9,4$% %%-211,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,34
A. CNR1 Performance and Measurements under
Different Conditions ........................................... A-1
CNR1 Table of Contents
ii
Figures
3-2, $! $!%2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,3
4-2,2!& % "%! $,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,5
6-2,2%,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,9
6-3, %# %%-211$ %5211!&,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:
7-2,5211!&,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,22
Tables
6-2,%!#! %! $!## %$&# %+ $
5211,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,:
6-3,%!#! %! $!# - $&# %+ $
5211,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,21
6-4,4111 6111! %! $!## %$&# %,,,,21
-2,*"!&%"&%$ $!%2& ## %%!#!!
! %! $,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-3
1
CNR1 Net Radiometer
1. General Description
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2. Sensor Specifications
2.1 CNR1 Specifications
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CNR1 Net Radiometer
2
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FIGURE 2-1. The Dimensions of the CNR1
2.2 CM3 Specifications
*# #.#)(-.".,*,.) ."&--# #.#)(8
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#% ## #, 29MP';M.LKKK';M
CNR1 Net Radiometer
3
!%# $ %'%*, 2909PWBNPK;LPKK('C
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2.3 CG3 Specifications
$! $%758, LS-
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CNR1 Net Radiometer
4
3. Installation
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NOTE
CNR1 Net Radiometer
5
FIGURE 3-1. CNR1 Mounting Options
),#(-.&&.#)(#(/#&#(!-),#(-)&,(,!3**&#.#)(- )(1#&&) .(
"0.)')/(.."L*,&&&.)."-/, .".#-#(!-./#9"#-
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"(!#(-(-#.#0#.3C,'#(-1#."#(NW9
4. Using the CNR1 in the Four Separate Components
Mode (4SCM)
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&/&.9
4.1 Measuring Solar Radiation with the CM3
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CNR1 Net Radiometer
6
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4.2 Measuring Far Infrared Radiation with the CG3
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4.3 Measuring the CNR1’s Temperature with the Pt-100
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CNR1 Net Radiometer
7
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(#--)&-*,.&39"OLKK)( #!/,-.".;LKK-O;1#,
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4.4 Calculation of the Albedo for Solar Radiation
"&)#-.",.#)) #()'#(!(, &.)&,,#.#)(9.#-
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4.5 Calculation of the Net Solar Radiation (Net Short-Wave)
.)&,,#.#)(#-+/&.)."#()'#(!-)&,,#.#)('#(/-."
, &.-)&,,#.#)(9
CNR1 Net Radiometer
8
.)&,,#.#)(YB/**,NC;B&)1,NC BO9OC
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4.6 Calculation of the Net Infrared Radiation (Net Long-Wave)
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8
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.
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Ground Temperature E lower CG3
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4.7 Calculation of the Net (total) Radiation
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CNR1 Net Radiometer
9
5. Wiring
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FIGURE 5-1. CNR1 Schematic
CNR1 Net Radiometer
10
FIGURE 5-2. Interfacing the Pt-100 Using the 4WPB100 Module
" )/,,#.#)()/.*/.-('-/,/-#(!# ,(.#&),#(!&;
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†,(!
# ,(.#&(*/.BC # ,(.#&(*/.BC # ,(.#&(*/.BC
N* ,(F&&)1# ,(.#&(*/.BC # ,(.#&(*/.BC # ,(.#&(*/.BC
N)1(#!(&,)1(# ,(.#&(*/.BC # ,(.#&(*/.BC # ,(.#&(*/.BC
N)1( ,(F,(# ,(.#&(*/.BC # ,(.#&(*/.BC # ,(.#&(*/.BC
"#&,!
&%
F/'*,.)), 1#."/-,-/**#,9
†&-2.([OS’"0(),(!1#,9
CNR1 Net Radiometer
11
%.100!#%&#$ # % $% 4100% #
&% # 4100 % #
&%#,2#..#)(
# ,(.#&(*/.BC
.;LKK2#..#)(X # ,(.#&(*/.BC
.;LKK2#..#)(; &/ BLK@PLKC
.;LKK#!(&X &&)1 # ,(.#&(*/.BC
.;LKK#!(&A ,(# ,(.#&(*/.BC
"#&,!&% ,)/(BC
5.2-% # % $ # .$&#%+$4100
&% # 10+510 23 21/6
N*#!(&#(!&;((*/.#(!&;((*/.#(!&;((*/.
N* ,(&/
N)1(#!(&"#.#(!&;((*/.#(!&;((*/.#(!&;((*/.
N)1( ,(&%
N*#!(&,3),,(!#(!&;((*/.#(!&;((*/.#(!&;((*/.
N* ,(&&)1
N)1(#!(&,)1(#(!&;((*/.#(!&;((*/.#(!&;((*/.
N)1( ,(,(
"#&,!&%
5.3-30005000 % $
##% $&#%
&% # 3000/5000
N*#!(&# ,(.#&(*/.BC
N* ,(&/# ,(.#&(*/.BC
N)1(#!(&"#.# ,(.#&(*/.BC
N)1( ,(&%# ,(.#&(*/.BC
N*#!(&,3),
,(!
# ,(.#&(*/.BC
N* ,(&&)1# ,(.#&(*/.BC
N)1(#!(&,)1(# ,(.#&(*/.BC
N)1( ,(,(# ,(.#&(*/.BC
;LKK#!(&X &&)1# ,(.#&(*/.BC
;LKK#!(&; ,(# ,(.#&(*/.BC
;LKK/,,(.2#..#)(X /,,(.2#..#)(
;LKK/,,(.2#..#)(; &//,,(.2#..#)(
"#&,!&%
6. Datalogger Programming
"L)/.*/.- )/,0)&.!-."..3*#&&3,(! ,)'K.)LP' ),
."N-(-),- (±P' ),."N-(-),-9# ,(.#&0)&.!
'-/,'(.B(-.,/.#)(MC#-,)''(/-#."-..,()#-
,$.#)(."(-#(!&;('-/,'(.9 # ,(.#&"((&-,
().0#&& -#(!&;('-/,'(.-B(-.,/.#)(LC(/-9
CNR1 Net Radiometer
12
"*.#&#.3) -#(!&;('-/,'(.(.,'#(3
-#'*&3)'*,#(!.",-/&.-) -#(!&;((# ,(.#&
'-/,'(.-'/(,."-')(#.#)(-9
),."NKKK(PKKK )(# ,(.#&"((&(/,,(.
2#..#)("((&,,+/#,.)'-/,.";LKK9
),.").",.&)!!,- .1)# ,(.#&"((&-(."OLKK
')/&,,+/#,.)'-/,.".;LKK.'*,./,-(-),9
"OLKK#--)&-*,.&3 ,)'."L9
FIGURE 6-1. 4WPB100 Module
6.1 Calibration Factor
"L#-*,)0#1#."=,.# #.) &#,.#)(>3."
'(/ ./,,.".-")1-."-(-),-,#&(/',(=-(-#.#0#.3>),
&#,.#)( .),9"-,#&(/',(-(-#.#0#.3,&-)-")1()(
&&..".)."-(-),9
"&#,.#)( .),#-#(/(#.-) /@B';MC1"#"(-.)
)(0,..)/(#.-) B';MC@' ),."'/&.#*&#,*,'.,#(."
.&)!!,*,)!,'9))(0,.."/(#.- #0#."&#,.#)( .),
#(.)LKKK9 ),2'*& # ."&#,.#)( .),#-R9NK/@B';MC."
'/&.#*&#,#-LKKK@R9NYLNQ9TT
B';MC@'9
6.2 Example Programs
6.2.1 Example 1, CR23X Program Using Differential Channels
,)!,'2'*&L,+/#,--#2# ,(.#&"((&-(."OLKK
')/&.)'-/,." )/,,#.#)()/.*/.-(.".;LKK.'*,./,
NOTE
CNR1 Net Radiometer
13
-(-),9"*,)!,''-/,-."-(-),-0,3M-)(-(&/&.-
(-.),-." )&&)1#(!..) #(&-.),!0,3QK'#(/.-8
CNR1 Net Radiometer
14
,,3
,
/&#(3
)/,@#(/.
0!N*B-"),.10,#.#)(C
0!N)1(B-"),.10,#.#)(C
0!N*B&)(!10,#.#)(C
0!N)1(B&)(!10,#.#)(C
0!L.'*,./,B!,-C
0!L.'*,./,B!,-C
0!.-"),.10,#.#)(
0!.&)(!10,#.#)(
0!&)
0!).&.,#.#)(
0!.'*,./,),,.N*
0!.'*,./,),,.N)1(
# ## #)! 1
#
&%
)! 23
# #
$$
N*#!(&L
&/N* ,(L
"#.N)1(#!(&M
&%N)1( ,(M
,3),,(!N*#!(&N
&&)1N* ,(N
,)1(N)1(#!(&O
,(N)1( ,(O
"#&"#&
%.100!#%&#$ # % $% 4100% #
# &% 4100 23
&% #,L
P
.;LKK2#..#)(X P
&/.;LKK2#..#)(;
&&)1.;LKK#!(&X Q
,(.;LKK#!(&; Q
CNR1 Net Radiometer
15
07?@8
0'%'#-#&">%'?@)"%'
0
0>($( ) + ).%'&'%'#-#&"HD2@=*44#:?
0*") &" '%'#(*'#$) $()'*) %$(H>===4D2@=H>@C2FF
0
;9">'%'#
KL8M 2/.#)((.,0&B-)(-C
0(*'@&$@%,$5(%'),+' ) %$6
0%)1*") &" '5'#)'B6, "" '$)%'>
L8)&.B# CBMC
L8M *-
M8 MMX PK' QK4$. &)1(!
N8LF "((&
O8LF )DNH/*E
P8 LNQ9TT /&.0#*")H>===4>($( ) + ).
Q8K -.
0(*'@&$@%,$5"%$,+' ) %$6
0%)1*") &" '5'#)'B6, "" '$)%'>
M8)&.B# CBMC
L8M *-
M8 MLXX LK' QK4$. &)1(!
N8NF "((&
O8NF )DNH/*E
P8 LNQ9TT /&. 0#*")H>===4>($( ) + ).
Q8K -.
0(*'>)#&')*'
N8 /&&,#!1@'02#.BTC
L8L *-
M8 MMFF PK' QK4$. &)1 2(!
N8 MMFF PK' QK4$. &)1 ,(!
O8PF "((&
P8L 2#.&&,*-1@2"(L
Q8 OMKKFFF '2#..#)(
R8PF )D'*HE
S8L /&.
T8K -.
O8'*,./,BLQC
L8L *-
M8P @K)D'*HE
N8P )D'*HE
O8L9K /&.
P8K -.
P8YX BNOC
L8P )D'*HE
M8 MRN9LS
N8Q )D'*HE
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