Campbell Scientific CS11-L Current Transformer - Manual (Page 21)

CS11-L Current Transformer
Six Cycles at 60 Hz Burst CR10X
I Instanteneous
FIGURE 6-2. Graph of CS11-L waveform using burst mode
The following CR10X program generates the waveforms shown in FIGURE
6-2.
The instructions listed below do not store data in final storage.
P92, P77, and output processing instructions such as P70 are
required to store the data permanently. NOTE
6.3.1 Example CR10X Program
; Parameter 2 should be 2500 mV for 50-200 amps
; should be 250 mV for 5-49 amps
; should be 25 mV for 0-4.9 amps
; Parameter 5 should be 2.0 msec for 50 Hz or 60 Hz
; Parameter 6 should be 0.05 thousand scans for 50 Hz or 60 Hz
; if parameter 5 & 6 are 2.0 and 0.05, then you have 5 complete cycles at 50 Hz
; or 6 complete cycles at 60 Hz.
;
1: Burst Measurement (P23)
1: 1 Input Channels per Scan ; Should always be 1
2: 15 2500 mV Fast Range ; Change according to expected Amperage
3: 1 In Chan ; Change according to Wiring
4: 0001 Trig/Trig/Dest/Meas Options ; Should always be 0001
5: 2.0 Time per Scan (msec) ; Must be 2.0
6: .05 Scans (in thousands) ; Must be 0.05 (for 50 measurements • 2.0 msec = 100 mS)
7: 0 Samples before Trigger ; Should always be 0
8: 0.0 mV Limit ; Should always be 0
9: 0000 mV Excitation ; Should always be 0
10: 4 Loc [ Amps_1 ] ; First location of Block (array)
11: .2 Multiplier ; Match Multiplier of CT:0.2 for CS11-L with 10 ohm shunt
12: 0.0 Offset
2: Z=F x 10^n (P30)
1: 0.0 F
2: 00 n, Exponent of 10
3: 1 Z Loc [ Counter ]
; This part of the program will calculate the rms Amperage
; Standard Deviation in this part of the code works mathematically the same
; as rmscalculation, and it is easier to program this way. The rms
; value is calculated and stored back into an input location for further
; processing if needed.
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