Hach-Lange POLYMETRON 9500 User Manual - Manual (Page 30)

Option Description
SET KNEE POINT VALUE Sets the value at which the process variable range divides into another linear
segment.
SET KNEE POINT CURRENT Sets the value of the current at the knee point value.
Logarithmic output mode
Figure 14 shows in graph form the operation of the logarithmic output mode.
Figure 14 Logarithmic output
1 Output current axis 4 50% value 7 Maximum output current
(20 mA)
2 Source value axis 5 Minimum output current
(0-4 mA)
3 High value 6 50% output current
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