Xylem HYDROVAR (HV2.1 - 3.45) - Manual (Page 53)

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9.21.6 Example for the Offset
SENSOR RANGE: 20mA ≙ 10 bar
REQUIRED VALUE: 5 bar
LEVEL 1: 30% of the Offset signal
LEVEL 2: 80% of the Offset signal
INTENSITY 1:
-100% ≙ -5 bar (refer to the sensor range)
INTENSITY 2: +20% ≙ +2 bar (refer to the sensor range)
At the parameter Level 1 you have entered the required value in percent from the
Offset signal input (30%), also proceed with the second level (80%).
Intensity one and two are depending on the Sensor range of the external value signal.
The Intensity 1 that you have entered is valid till you reach Level 1, after reaching Level 1 the
Required Value has no offset.
The standard Required Value will be valid till you reach the Level 2. After reaching level 2, the
new value, depending on the Intensity 2, is valid.
Press the ¾ button to change to the next parameter
Intensity 2
20%
0%
20%
40%
60%
80%
100%
0% 20% 40% 60% 80% 100%
5 bar
7 bar
+
-
0 bar
0% = 4mA (0V/2V) 100% = 20mA (10V)
Level 1
30% Level 2
80%
Intensity 2
+20%
Intensity 1
-100%
Actual Value
input
Required
Value 1
Offset signal