Campbell Scientific CS525 ISFET pH Probe User Manual
Page 16
Appendix A. Calibration
A-2
Battery
(Batt_volt)
VoltSe
(pHmV,1,mV5000,1,False,0,_60Hz,1,0)
If pH4record = -1 Then
pH4mV
=
pHmV
pH4record
=
0
EndIf
If pH7record = -1 Then
pH7mV
=
pHmV
pH7record
=
0
EndIf
If pHcal = -1 Then
pHmult = 3/(pH7mV - pH4mV)
pHoffset = 7 - pHmult * pH7mV
pHcal
=
0
EndIf
pH = pHmult * pHmV + pHoffset
CallTable TenMin
NextScan
EndProg
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