Advanced Operations

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 420 mA.

Figure 53 Output value with an input range of 420 mA

1

Output value (concentration) (y-axis)

5

4 mA

 

 

 

 

2

OV=f(IC)

6

0 mA

 

 

 

 

3

Input current (x-axis)

7

Low value (LV)

 

 

 

 

4

20 mA

8

High value (HV)

 

 

 

 

The output value (OV) is determined according to formula (4):

HV-LV

(4) OV = f(IC) = -----------------(IC-4mA) + LV

16mA

where: OV=Output value IC=Input current LV=Low value HV=High value

86

Page 88
Image 88
Hach sc1000 user manual Output value with an input range of 4-20 mA, Hv-Lv ⋅