Setting The Output Signal Scaling - JUMO DELOS HP Notice De Mise En Service

7.8

Setting the output signal scaling

Customer specific scaling
It is frequently desirable to scale a part of the nominal measuring range to the output signal.
Example:
Actual
The device has a nominal measuring range (1) 0 to 160 bar and the output signal is 4 to 20 mA (3).
Set point
Customer requirement: The "customer measuring range" (2) 40 to 80 bar (1) must be equivalent to the
output signal 4 to 20 mA (3). The scaling is thus 1:4 or 25% of the nominal measuring range.
(1) Nominal measuring range
(3) Output signal
(5) Scaling end
Inverting the output signal
The device offers the possibility to invert the output signal (3).
During this process the output signal
• 0 to 20 mA for the output signal 20 to 0 mA
• 4 to 20 mA for the output signal 20 to 4 mA
• 0 to 10 V for the output signal 10 to 0 V
Example 20 to 4 mA
0 40
(4)
4
0 40
(4)
20
80 120
(5)
100 %
(2) Customer measuring range
(4) Scaling start
80 120
(5)
100 %
7 Startup
160 bar
(1)
(2)
(3)
20 mA
160 bar
(1)
(2)
(3)
4 mA
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