Campbell Scientific CS547A-L Conductivity/Temperature Probe and A547A Interface - Manual (Page 27)

CS547A Conductivity and Temperature Probe and A547 Interface
Example 12-1. CR1000 measurement instruction with 20 mSec
(20000 uSec) delay:
Therm107(TempDeg_C,1,3,2,20000,_60Hz,1.0,0.0)
Example 12-2. Sample Program CR10 Using DC Half Bridge with Delay
1: Excite, Delay,Volt(SE) (P4)
1: 1
Rep
2: 2** 7.5 mV slow range
3: 3* IN Chan
4: 2* Excite all reps w/EXchan 2
5: 2 Delay (units .01sec)
6: 2000** mV Excitation
7: 11* Loc [ Temp_C ]
8: .4*** Mult
9: 0 Offset
2: Polynomial (P55)
1: 1
Rep
2: 11* X Loc Temp_C
3: 11* F(X) Loc [ Temp_C ]
4: -53.46 C0
5: 90.807 C1
6: -83.257 C2
7: 52.283 C3
8: -16.723 C4
9: 2.211
C5
*
Proper entries will vary with program and datalogger channel and input location assignments.
** On the 21X and CR7 use the 15 mV input range and 4000 mV excitation.
*** Use a multiplier of 0.2 with a 21X and CR7.
13. CS547A Schematic
Black (Ex Cond)
Green (Ex Temp)
Red (Temp)
Orange (Cond)
FIGURE 13-1. CS547A Conductivity and Temperature circuit diagram
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