Campbell Scientific SI-111 (IRR-P) Precision Infrared Radiometer User Manual
Page 12
SI-111 Precision Infrared Radiometer
;{CR10X}
*Table 1 Program
01: 1
Execution
Interval
(seconds)
;Instruction string to measure the resistance of the thermistor and calculate the sensor body
;temperature. See the Instruction Manual for Campbell Scientific Model 109 Temperature Probe for
;details.
1: AC Half Bridge (P5)
1: 1
Reps
2: 25
2500 mV 60 Hz Rejection Range ;the range should at least match the excitation
3: 1
SE
Channel
4: 1
Excite
all
reps
w/Exchan
1
5: 2500
mV
Excitation
6: 1
Loc
[
mV_thrm
]
7: 1.0
Mult
8: 0.0
Offset
2: Z=1/X (P42)
1: 1
X Loc [ mV_thrm ]
2: 2
Z Loc [ 1_mV_thrm ]
3: Z=X+F (P34)
1: 2
X
Loc
[
1_mV_thrm
]
2: -1.0
F
3: 3
Z Loc [ 2_mV_thrm ]
4: Z=X*F (P37)
1: 3
X
Loc
[
2_mV_thrm
]
2: 24900 F
3: 4
Z Loc [ R_thrm ]
5: Z=LN(X) (P40)
1: 4
X
Loc
[
R_thrm
]
2: 5
Z Loc [ InR_thrm ]
6: Z=X*F (P37)
1: 5
X
Loc
[
InR_thrm
]
2: 0.001
F
3: 6
Z Loc [ Scaled_R ]
7: Polynomial (P55)
1: 1
Reps
2: 6
X Loc [ Scaled_R ]
3: 7
F(X) Loc [ SH_Coeffs ]
4: .001129 C0
5: .234108 C1
6: 0.0
C2
7: 87.7547 C3
8: 0.0
C4
9: 0.0
C5
8: Z=1/X (P42)
1: 7
X Loc [ SH_Coeffs ]
2: 8
Z Loc [ SB_Temp_K ]
6