JUMO B70.1170.0, Operating Manual

Page: 108 / 118

12 Setup program
47
2011-03-13
12.5 2x Pt100 for differential value calculation with prefix
Differential value calculation with prefix is factory set.
-200°C
300°C
AL = 150°C (inverse)
0°C
200°C
100°C
-100°C
300°C 200°C 100°C 0°C -100°C -200°C
ALD = 50°C
IN2
INP
valid
range
valid
range
Hys1
Hys1
All difference values diF = INP-IN2 are shown in the picture.
Inside the valid range (green) all values are smaller than the
setting for the difference ALd = 50.
INP = 101°C, IN2 = 50°C
101 - 50 = 51 exceeds Ald = 50 and lies out of the valid range.
INP = 50°C, IN2 = 50°C
50 - 50 = 0 and lies inside the valid range.
Example 1:
Example 2:
The area between the dot and dash lines indicate
the span of the hysteresis (factory setting: 1K)
he inputs INP and IN2 are additionally monitored
in regards to the limit value AL=150°C
T
50°C
1
2