Hach sc1000 User Manual page 88

Advanced Operations
1 Output value (concentration) (y-axis)
2 OV=f(IC)
3 Input current (x-axis)
4 20 mA
86
Figure 53 shows the output value depending on the input current, the set low value and
the set high value with an input range of 4
Figure 53 Output value with an input range of 4
The output value (OV) is determined according to formula (4):
HV-LV
(4) OV f(IC)
---------------- -
= =
16mA
where:
OV=Output value
IC=Input current
LV=Low value
HV=High value
20 mA.
–
5 4 mA
6 0 mA
7 Low value (LV)
8 High value (HV)
×
(IC-4mA) LV
+
20 mA
–